Hyslop Farm
Microstation
Climate Summary
Special Report 400
December 1973
Agricultural Experiment Station
Oregon State University, Corvallis
CONTENTS
Probability of Frost
1
Average Daily Solar Radiation
2
Average Relative Humidity
3
Monthly Evaporation
4
Wind Frequency, Salem
5
Wind Frequency, Eugene
6
Daily Normal Temperatures
7
Extreme Values of Temperature and Precipitation
11
Weekly Mean Soil Temperature
23
AUTHORS: Phillip D. Olson, Agronomic Crop Science
Department, Oregon State University; Earl M. Bates,
National Weather Service, United States Department
of Commerce, National Oceanic and Atmospheric Administration.
PROBABILITY DATES OF
VARIOUS TEMPERATURE OCCURRENCE
WILLAMETTE VALLEY
Fifty Per Cent Chance Of:
Albany
Corvallis
Eugene
Forest Grove
Portland
Salem
24°
January 21
January 28
January 21
February 10
January 15
February 1
28°
February 20
February 27
March 6
March 29
January 24
March 9
32°
April 2
April 15
April 8
April 26
February 28
April 19
Twenty Per Cent Chance Of:
Albany
Corvallis
Eugene
Forest Grove
Portland
Salem
24°
February
February
February
March 5
February
February
13
20
13
7
24
28°
March 12
March 19
March 28
April 18
February 13
March 29
32°
April 17
April 30
April 23
May 11
March 15
May 4
Ten Per Cent Chance Of:
Albany
Corvallis
Eugene
Forest Grove
Portland
Salem
24°
February 25
March 4
February 25
March 17
February 19
March 8
28°
March 21
March 28
April 6
April 27
February 22
April 7
32°
April 26
May 9
May 2
May 20
March 24
May 13
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CROP SEASON MONTHLY EVAPORATION
From Standard Weather Bureau
Open Pan (1953-1972)
(inches)
Year
APR
MAY
JUNE
JULY
AUG
SEPT
OCT
1953
.73
2.64
3.43
6.77
5.48
4.13
1.65
1954
3.01
4.19
3.43
5.06
3.77
2.70
1.34
1955
1.16
4.44
5.04
5.30
6.72
4.25
1.30
1956
2.99
4.52
4.53
7.74
5.72
4.26
1.66
1957
2.71
3.43
4.62
7.05
5.87
5.07
1.55
1958
1.11
5.20
4.51
8.29
8.31
4.80
2.54
1959
2.80
3.27
5.00
9.13
8.11
3.57
1.84
1960
2.37
2.90
7.27
9.89
6.87
4.72
2.30
1961
2.01
2.33
6.97
8.53
7.06
4.55
1.97
1962
3.24
3.26
6.87
8.13
6.74
5.01
1.05
1963
2.61
4.31
5.20
6.52
8.16
4.68
1.63
1964
2.75
4.25
4.75
6.77
6.20
4.56
2.26
1965
2.86
4.96
6.31
8.96
6.35
6.57
2.04
1966
3.99
6.16
7.49
8.31
8.77
4.69
2.62
1967
2.61
5.61
6.69
9.08
8.69
6.49
2.18
1968
*
3.83
6.17
8.35
5.39
3.96
1.61
1969
2.73
5.83
5.36
7.61
8.31
4.34
1.25
1970
3.21
4.87
7.08
9.36
8.19
4.86
2.81
1971
3.33
5.48
4.91
7.82
6.99
5.22
2.28
1972
2.23
5.58
6.00
10.27
8.42
5.40
3.15
MEAN
2.55
4.35
5.58
7.95
7.01
4.69
1.95
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6
ESSA-WEATHER BUREAU
AGRICULTURAL SERVICE OFFICE
OREGON STATE UNIVERSITY
Daily normal temperatures for Corvallis, Oregon, Hyslop Farm,
extrapolated from normals at Eugene and Salem, Oregon.
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
January
Temperature
Max Min Avg
45 33 39
45 33 39
45 33 39
44 32 38
44 32 38
44 32 38
44 32 38
44 32 38
44 32 38
44 32 38
44 32 38
44 31 38
44 31 38
44 31 38
44 31 38
44 31 38
44 31 38
44 31 38
44 31 38
44 31 38
44 31 38
44 31 38
44 31 38
45 31 38
45 31 38
45 31 38
45 31 38
45 32 39
46 32 39
46 32 39
46 32 39
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
February
Temperature
Max Min Avg
46 32 39
46 32 39
46 32 39
46 32 39
46 33 40
47 33 40
47 33 40
47 33 40
47 33 40
47 33 40
48 33 41
48 33 41
49 34 42
49 34 42
49 34 42
49 34 42
50 34 42
50 34 42
50 34 42
50 35 43
51 35 43
51 35 43
51 35 43
51 35 43
51 35 43
52 35 44
52 35 44
52 36 44
52 36 44
7
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
March
Temperature
Max Min Avg
52 36 44
52 36 44
52 36 44
53 36 45
53 36 45
53 36 45
53 37 45
53 37 45
53 37 45
53 37 45
53 37 45
54 37 46
54 37 46
54 37 46
54 37 46
54 37 46
54 37 46
55 37 46
55 37 46
55 37 46
55 37 46
55 37 46
55 37 46
55 37 46
55 37 46
56 37 47
56 37 47
56 37 47
56 37 47
56 37 47
56 37 47
NATIONAL WEATHER SERVICE
AGRICULTURAL SERVICE OFFICE
OREGON STATE UNIVERSITY
Daily normal temperatures for Corvallis, Oregon, Hyslop Farm,
extrapolated from normals at Eugene and Salem, Oregon.
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
April
Temperature
Max Min Avg
57 38 48
57 38 48
57 38 48
58 38 48
58 38 48
58 39 49
58 39 49
58 39 49
58 39 49
59 39 49
59 40 50
60 40 50
60 40 50
61 40 51
61 40 51
62 40 51
62 41 52
62 41 52
62 41 52
63 41 52
63 41 52
63 41 52
63 42 53
63 42 53
63 42 53
64 42 53
64 42 53
64 43 54
65 43 54
65 43 54
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
May
Temperature
Max Min Avg
65 43 54
65 43 54
65 43 54
65 43 54
65 43 54
66 44 55
66 44 55
66 44 55
66 44 55
66 44 55
66 44 55
66 44 55
67 45 56
67 45 56
67 45 56
67 45 56
67 45 56
67 45 56
67 45 56
68 46 57
68 46 57
68 46 57
68 46 57
68 46 57
68 46 57
68 46 57
69 47 58
69 47 58
69 47 58
69 47 58
69 47 58
8
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
June
Temperature
Max Min Avg
69 47 58
69 47 58
69 47 58
70 47 59
70 48 59
70 48 59
70 48 59
70 48 59
70 48 59
71 48 60
71 48 60
71 48 60
72 49 61
72 49 61
72 49 61
72 49 61
73 49 61
73 49 61
73 49 61
73 49 61
74 49 62
74 49 62
74 49 62
75 50 63
75 50 63
75 50 63
76 50 63
76 50 63
76 50 63
77 50 64
NATIONAL WEATHER SERVICE
AGRICULTURAL SERVICE OFFICE
OREGON STATE UNIVERSITY
Daily normal temperatures for Corvallis, Oregon, Hyslop Farm,
extrapolated from normals at Eugene and Salem, Oregon.
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
July
Temperature
Max Min Avg
78 51 65
79 51 65
79 51 65
79 51 65
80 51 66
80 51 66
80 51 66
80 51 66
80 51 66
81 51 66
81 51 66
81 51 66
81 51 66
81 51 66
81 51 66
81 51 66
81 51 66
81 52 67
81 52 67
81 52 67
82 52 67
82 52 67
82 52 67
82 52 67
83 52 68
83 52 68
83 52 68
83 52 68
83 52 68
83 52 68
83 52 68
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
August
Temperature
Max Min Avg
82 52 67
82 52 67
82 52 67
82 52 67
82 52 67
82 52 67
82 52 67
82 52 67
82 52 67
82 52 67
81 51 66
81 51 66
81 51 66
81 51 66
81 51 66
81 51 66
80 51 66
80 51 66
80 51 66
80 51 66
80 51 66
80 51 66
80 51 66
79 51 65
79 50 65
79 50 65
79 50 65
79 50 65
79 50 65
79 50 65
79 50 65
9
September
Temperature
Max Min Avg
79 50 65
1
79 50 65
2
79 50 65
3
79 50 65
4
78 49 64
5
78 49 64
6
7
78 49 64
78 49 64
8
77 49 63
9
77 49 63
10
77 49 63
11
12
77 49 63
77 49 63
13
76 48 62
14
76 48 62
15
76 48 62
16
76 48 62
17
18
75 48 62
19
75 48 62
75 47 61
20
75 47 61
21
75 47 61
22
74 47 61
23
74 47 61
24
73 47 60
25
73 47 60
26
72 46 59
27
28
72 46 59
29
72 46 59
71 46 59
30
Day
NATIONAL WEATHER SERVICE
AGRICULTURAL SERVICE OFFICE
OREGON STATE UNIVERSITY
Daily normal temperatures for Corvallis, Oregon, Hyslop Farm,
extrapolated from normals at Eugene and Salem, Oregon.
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
October
Temperature
Max Min Avg
71 45 58
71 45 58
70 45 58
70 45 58
69 45 57
68 45 57
68 45 57
68 45 57
67 44 56
67 44 56
66 44 55
66 44 55
65 44 55
65 43 54
65 43 54
64 43 54
64 43 54
63 43 53
63 43 53
62 42 52
62 42 52
62 42 52
60 42 51
60 42 51
60 41 51
60 41 51
59 41 50
59 41 50
58 40 49
57 40 49
57 40 49
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
November
Temperature
Max Min Avg
57 39 48
56 39 48
56 39 48
56 38 47
56 38 47
55 38 47
55 38 47
54 38 46
54 38 46
54 38 46
54 38 46
53 38 46
53 37 45
53 37 45
53 37 45
52 37 45
52 37 45
52 37 45
51 37 44
51 37 44
51 37 44
51 37 44
50 36 43
50 36 43
50 36 43
50 36 43
50 36 43
50 36 43
49 36 43
49 36 43
10
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
December
Temperature
Max Min Avg
49 36 43
49 36 43
49 36 43
49 36 43
49 36 43
48 36 42
48 36 42
48 36 42
48 36 42
48 36 42
47 35 41
47 35 41
47 35 41
47 35 41
47 35 41
47 35 41
47 35 41
47 35 41
46 35 41
46 35 41
46 35 41
46 35 41
46 35 41
46 34 40
46 34 40
45 34 40
45 34 40
45 34 40
45 34 40
45 33 39
45 33 39
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
January
Date
Max.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
59
57
58
60
64
60
60
60
56
57
59
57
55
56
57
60
58
60
58
60
61
62
59
61
61
61
64
64
59
64
60
Year
1940
1953
1902
1914
1914
1914
45,14
1962
33,45,53
1953
1928
1945
04,19
1970
1961
1958
1919
1919
1961
1968
1968
1931
05,19,31,70
31,35
1935
1924
1931
1931
20,40
1940
40,60
Min.
3
8
18
16
10
13
11
10
6
12
0
1
12
13
7
17
15
11
8
12
4
11
11
11
12
15
7
11
12
12
-1
11
Year
1924
1924
1959
1924
1924
1924
1937
09,37
1909
1909
1909
1909
09,30
1930
1907
1907
1916
1950
1916
1949
1930
1927
1962
02,43
02,30,49
1957
1957
1957
1957
1957
1950
Precip.
Year
1.15
1.58
3.43
2.38
1.65
2.55
2.00
1.36
1.38
1.53
1.43
2.55
2.52
1.13
1.45
1.16
3.40
2.25
1.38
2.00
1.78
.75
1.51
1.14
1.73
1.27
1.69
4.28
1.28
.75
1.29
1933
1933
1907
1966
1914
1923
1942
1953
1959
1950
1918
1936
1901
1915
1937
1954
1911
1911
1953
1964
1914
1970
1970
1941
1970
1942
1959
1965
1958
1958
1958
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
February
Date
Max.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
66
59
62
61
61
60
63
62
63
63
64
62
61
62
66
68
67
64
65
62
62
63
63
69
65
68
68
68
68
Year
Min.
Year
Precip.
Year
12
3
1
12
25
20
21
17
11
17
18
15
18
21
21
17
20
23
21
24
23
25
24
22
21
17
18
25
26
1950
1950
1950
1950
1903
1948
1929
1929
1933
29,33
05,29
1954
1905
1905
1936
1956
1956
1936
1955
1955
1955
20,42
20,47
1920
1962
1962
1962
13,18
1960
1.23
1.25
1.78
1.96
1.00
1.98
1.27
1.34
2.56
2.76
1.11
1.38
1.23
2.00
1.68
1.93
2.13
1.26
1.57
1.41
2.17
1.17
.78
1.29
1.47
1.17
.66
1.00
.77
1947
1925
1942
1926
1908
1943
1945
1922
1919
1961
1961
1954
1954
1904
1904
1970
1949
1949
1968
1921
1956
1949
1909
14,26
1902
1919
1965
1940
1904
1940
1960
1917
1928
52,30
1961
1947
1952
1951
51,63
1963
1931
31,47
1951
1902
1902
1916
16,43
1916
1916
1941
02,32,50
16,47
1905
1905
1932
1932
01,68
1968
12
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
March
Date
Max.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
72
73
68
65
64
65
73
76
77
72
72
72
71
78
78
77
78
77
73
76
75
75
73
69
71
73
77
74
77
78
77
Year
1905
1905
26,28
28,43,65
1965
1965
1905
1905
1905
1941
1934
1934
1934
1926
1947
1947
1947
1947
1914
1915
1915
15,39
1915
1953
1930
1941
1941
1969
1923
1923
1911
Min.
21
26
20
21
23
14
23
27
27
27
24
24
22
25
22
25
22
26
28
28
29
29
28
29
24
28
27
30
28
25
28
13
Year
1960
48,53
1923
1923
1955
1956
1956
23,55
51,68
1956
1903
1906
1906
17,23
1926
06,17
1906
1917
1965
1954
12,44
1952
1924
16,42
1913
1919
1922
44,49,61
1925
1936
20,70
Precip.
.84
.82
1.62
1.52
.70
1.32
.76
1.10
1.67
1.26
.97
1.38
.82
.90
1.74
1.38
1.00
1.67
.80
.95
.96
1.10
1.05
.77
1.28
1.89
1.35
.80
1.86
1.90
1.76
Year
1904
1956
1916
1902
1960
1916
1957
1951
1966
1907
1961
1946
1961
1912
1908
1921
1945
1938
1922
1904
1905
1938
1907
1932
16,62
1916
1940
1904
1963
1963
1943
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
April
Date
Max.
Year
Min.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
77
78
76
80
82
80
78
75
79
80
86
85
84
84
85
80
83
83
82
88
82
80
87
86
83
88
88
91
88
85
1911
1944
1951
1949
1930
1906
1939
28,38
1904
1904
1904
1904
43,47
43,47
1926
1947
1939
1939
1965
1906
1934
1905
1910
1910
1926
1947
1926
1926
1926
1957
30
28
24
26
28
28
28
28
30
29
29
28
24
27
29
29
28
29
28
29
29
30
30
29
30
31
30
28
27
29
14
Year
1936
06,70
1918
1918
1956
11,59
1921
1919
22,27,29
1927
1927
1903
1968
11,19
55,67
1960
1964
1902
27,68
1927
1968
1922
04,22
1942
1908
05,43
1955
1913
1954
1912
Precip.
Year
1.13
.45
.66
.85
.92
.88
.77
.58
.74
1.10
.66
.62
2.06
1.14
.69
.59
1.06
.65
.82
.50
.53
.52
.45
.43
.47
.47
1.37
.48
.42
.60
1934
1923
1954
1901
1941
1902
1907
1920
1914
1914
1944
1937
1937
1929
1937
38,63
1908
1925
1965
1960
1923
1915
1928
/936
1906
1937
1962
1951
10,55
1940
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
May
Date
Max.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
85
86
84
82
85
84
90
88
84
89
88
91
95
91
82
86
88
92
86
91
92
90
92
91
91
88
82
86
90
93
99
Year
Min.
28
29
31
32
28
30
32
30
32
31
31
34
33
33
36
34
36
33
32
36
33
31
36
33
31
31
33
35
34
30
30
1947
1946
1944
1944
1931
1953
1905
1906
1940
1931
1931
1949
1939
1939
1925
1922
1956
1956
1946
1928
1963
1938
1947
1938
1928
02,36,38
04,52
1952
1931
1931
1922
15
Year
1915
1964
1964
1952
1909
1909
1903
1922
08,26
1920
1916
1958
58,64
1920
1910
1917
09,43
1909
1927
03,53
09,55
1920
09,35
11,26
1920
1922
21,54,66
1914
1911
1920
1919
Precip.
Year
1.03
.51
.83
2.23
1.15
1.58
1.12
.68
.59
.90
.43
.53
.90
.69
.69
.49
.98
.94
.70
.46
.77
.64
.66
.33
.67
.52
.26
.22
.68
.53
.93
1949
1941
1948
1941
1941
1963
1963
1916
1957
1937
1905
1945
1902
06,36
1901
1945
1941
1957
1969
1968
1939
1939
1968
1953
1968
1960
1953
1958
1932
1943
1956
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
June
Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Max.
92
92
94
90
96
96
98
91
95
94
96
94
91
88
96
98
94
97
91
98
92
92
96
102
101
95
91
95
100
100
Year
Min.
1913
1937
1950
35,69
1935
1935
1903
1948
1955
1955
1940
1940
1916
16,40
1916
1966
1961
61,69
45,46,67
1902
1973
26,58
1926
1925
1925
1907
18,37
1957
1924
1942
32
38
36
33
38
34
37
37
39
38
38
35
36
41
37
35
35
36
38
35
38
39
37
32
38
43
37
38
38
40
16
Year
1929
10,12,27,49
1903
1950
09,53
1918
1961
1919
1938
1946
1956
1917
1955
1923
1952
1955
1911
1911
1914
1911
1914
08,19
1920
1911
1901
09,63,66
1965
1919
1919
19,27,56,61
Precip.
.44
.38
.51
.35
.60
.54
.65
1.68
.63
.34
.94
.70
.43
.55
1.03
.44
1.32
.45
1.06
.69
.68
.80
.76
.31
.65
.48
.52
.52
2.14
.50
Year
1947
1947
1930
1905
1959
1953
1914
1927
1954
1915
1910
1912
1931
1936
1906
1903
1931
1937
1937
1910
1943
1913
1969
1941
1942
1911
1969
1955
1952
1916
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
July
Date
Max.
Year
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
101
104
99
95
94
97
100
102
100
100
99
102
106
103
102
104
99
98
104
107
104
101
102
102
101
104
97
103
98
102
99
1942
1942
1922
1967
1926
1960
1960
1905
1926
1926
1951
1961
1935
17,41
1941
1941
1914
08,59
1931
1946
1938
1939
1928
1928
1928
1939
1939
1958
1960
1907
1959
Min.
40
38
36
39
40
40
40
39
39
41
43
42
38
40
41
43
41
40
42
42
41
41
42
43
42
42
42
42
41
44
41
17
Year
Precip.
Year
1919
1910
18,21
1926
1919
1902
1955
11,26
60,64
1924
21,43
19,21
1904
1968
1968
1952
1955
09,10
1926
22,24,26
1922
1922
1910
01,12,53
01,66
1922
26,57
13,45
1956
45,69
1956
.69
.47
.50
.20
.34
.81
.41
.57
.25
.19
.12
.06
.41
.29
.49
1.08
.04
No rain
.16
.10
.26
.01
.08
.15
.02
.42
.47
1.75
.02
.07
.08
1902
1902
1913
1963
1961
1909
1923
1946
1913
1954
1936
1925
1920
1904
04,26
1916
1916
1950
1940
1934
1945
1919
1912
1909
1947
1947
1947
1915
1947
1937
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
August
Date
Max.
Year
Min.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
101
101
98
100
99
103
105
100
102
99
97
101
99
102
99
100
100
98
99
98
99
99
97
96
99
99
1965
1939
1939
01,52
1932
1972
1972
25,39
1960
1967
1961
1920
1920
1942
1942
19,27
1940
1940
1951
1951
1950
1942
1917
1918
1918
1935
43
43
43
42
41
41
41
41
41
42
41
43
42
40
42
41
42
40
40
41
41
38
42
35
41
39
1918
37
27
22
29
30
31
99
100
98
99
96
1935
1931
44,67
1918
40
39
39
39
18
Year
10,26,37,69
26,55
1950
1903
1909
1909
1926
1909
1912
1903
08,59
10,18
27,55
1955
1955
1909
1914
1913
1964
22,52
09,47
1955
1901
1910
21,25
1957
1925
1957
1924
1907
1914
Precip.
.07
.28
.46
.42
.35
.19
.28
.21
.33
.09
.55
.43
.06
.21
.45
.67
.48
.70
.47
.28
.32
.55
.41
1.35
1.29
.83
.62
.42
.95
.25
.69
Year
1964
1956
1947
1933
1943
1957
1907
1907
1932
1932
1922
1965
1913
1968
1912
1912
1968
1926
1968
1968
1943
1925
1968
1968
1968
1953
1941
1912
1943
1912
1939
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
September
Date
Max.
Year
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
95
99
97
93
103
98
97
98
97
101
96
94
95
98
94
98
92
92
90
91
95
95
95
93
88
92
94
92
87
87
1905
1934
1935
18,35
1944
1955
1958
44,58
44,48
1944
1922
1922
1951
1937
57,67
1967
18,51
18,62
1918
1952
47,52
47,52
43,52
1943
1965
1949
1967
1967
1932
18,23
Min.
41
37
38
41
40
40
37
39
38
36
36
34
33
38
34
35
33
35
34
37
37
31
35
35
27
30
34
32
34
32
19
Year
01,14,21
1936
13,69
1954
1954
14,20
1910
1927
13,64
1952
1952
1921
1921
1921
1921
1921
1911
1911
06,11
24,58,60
55,64
1904
58,61
1909
1909
1909
02,09
1902
1961
1903
Precip.
1.89
.58
.32
1.22
.54
.46
.59
.71
.65
.62
1.15
1.57
.95
1.28
1.38
.72
.60
2.18
1.00
.54
1.52
.38
.76
1.25
.34
.86
1.29
.77
.62
.60
Year
1941
1941
1913
1911
1938
1927
1912
1917
1949
1930
1941
1906
1920
1935
1946
1955
1914
1969
1941
1910
1944
1920
1920
1924
01,05
1911
1957
1955
1925
1909
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
October
Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Max.
87
86
90
87
85
86
87
83
90
89
90
82
79
79
80
82
83
80
83
76
79
79
83
77
74
75
70
72
70
70
73
Year
Min.
1945
1952
1932
1932
1952
1952
1952
36,45
1936
34,36
1936
1901
1937
1929
29,52,61
1936
1936
36,40
1940
1938
1937
29,37
1929
1929
1904
1944
1944
31,37,44
1931
1917
1949
33
30
31
26
34
30
31
31
31
31
31
34
30
30
29
31
31
27
29
27
24
29
29
28
31
27
27
29
27
29
29
20
Year
03,21,50
1954
1916
1916
11,15
13,37
1912
16,61
1912
1924
1915
1912
1966
25,66
1933
25,46
49,64
1949
1905
1949
1933
1928
1916
1945
16,54
1954
1954
10,48
11,54
1926
26,27
Precip.
1.14
.78
1.81
.92
.97
.81
1.20
.99
1.77
1.56
.85
1.28
.96
1.08
1.56
1.24
.80
1.09
1.55
1.76
1.39
1.24
1.84
1.71
.67
1.11
1.20
1.32
2.26
1.20
.75
Year
1951
1914
1967
1939
1950
1905
1913
62,69
1955
1953
1948
1968
1908
1908
1947
1918
1947
1947
1909
1946
1934
1931
1951
1940
1931
1921
1950
1950
1924
1924
1901
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
November
Date
Max.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
72
70
72
69
66
67
70
66
68
67
70
68
66
64
66
67
65
64
60
68
68
64
65
67
67
63
60
60
63
68
Min.
Year
1954
1970
1927
01,08
08,49
1939
1958
1941
1907
1930
1907
1906
49,54
06,49
1919
1919
1932
19,32
1966
1917
1933
1909
1936
1947
1947
1949
40,47
1928
1907
9
21
22
15
19
22
23
26
26
26
25
24
23
21
16
14
16
19
24
25
22
25
23
20
20
21
18
15
20
20
23
21
Year
1935
1936
1935
1935
1957
1957
1957
1936
1959
1920
16,20
36,55
1916
1955
1955
1955
1955
1955
1929
1961
1922
1938
1952
1952
1952
1952
1952
1936
1952
56,69
Precip.
1.50
1.88
1.48
1.47
2.00
1.98
2.36
1.88
2.37
1.48
1.21
1.70
2.76
1.55
1.86
1.60
1.91
1.70
1.78
3.16
.92
2.37
1.80
2.38
1.79
2.56
1.72
1.21
2.21
1.36
Year
1924
1909
1944
1906
1910
1903
1906
1964
1912
1928
1960
1965
1941
1942
1941
1928
1954
1946
55,58
1921
1909
1961
1923
1907
1960
1962
1945
1914
1926
1902
EXTREME VALUES SINCE 1889
Extreme Data For
Corvallis, Oregon
December
Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Max.
65
62
63
63
59
58
63
62
59
60
60
62
61
60
56
58
58
58
61
58
56
61
66
61
56
60
60
63
66
63
61
Year
Min.
Year
1939
1958
1958
1939
1954
06,44
1938
1915
1915
1942
1958
1921
1960
1969
41,62
50,69
06,17
11,31,41
1915
06,40,53
1933
1955
1950
1950
02,33,43
1917
1917
1917
1917
1917
1958
20
22
25
24
22
20
12
-7
-6
1
-4
-14
-14.5
-10
-5
10
10
5
6
13
13
5
-3
-2
-8
-5
8
24
24
11
10
1956
1956
1906
06,72
1972
1972
1972
1972
1972
1972
1972
1919
1919
1919
1919
1919
1964
1924
1924
1924
1914
1924
1924
1924
1924
1924
1924
1930
16,25,30
1968
1968
22
Precip.
1.11
3.58
1.24
1.69
2.05
2.78
1.13
1.43
1.68
2.16
1.44
2.37
1.77
2.09
1.02
1.98
1.82
2.42
1.42
1.84
2.18
1.96
1.69
1.16
1.90
1.63
2.16
2.02
2.52
1.20
1.37
Year
1917
1941
1915
1968
1968
1933
1957
1901
1922
1968
1929
1969
1917
1929
1939
1941
1941
1929
1941
1957
1964
1964
1932
1965
1907
1917
1937
1965
1937
1917
1942
WEEKLY MEAN SOIL TEMPERATURE
1971 - 1961
Wheeler Calhoun
Agronomic Crop Science Department
Oregon State University
1971
Weekly Mean Soil Temperature
2 inch
Month,Week Max.
Min.
4 inch
Max.
Min.
8 inch
Max.
Min.
20 inch
Max.
Min.
Jan.
1
2
3
4
35.14
38.71
47.71
47.29
34.71
36.00
42.29
42.00
34.86
37.71
44.86
44.29
34.43
35.57
41.14
40.71
35.00
36.57
42.71
41.14
34.57
35.29
40.43
40.14
37.29
35.57
37.29
38.79
Feb.
1
2
3
4
48.43
48.29
49.71
44.29
40.43
39.00
41.71
38.14
43.29
43.29
45.86
41.71
39.71
38.71
41.14
37.71
42.00
40.71
43.71
40.14
40.57
39.00
41.29
38.14
March 1
2
3
4
5
39.14
46.43
52.86
54.30
56.30
35.14
39.00
38.43
43.70
43.10
37.00
43.00
47.71
47.00
43.71
34.29
38.43
38.43
43.00
42.71
35.00
39.57
42.29
43.86
45.29
April 1
2
3
4
57.10
57.70
57.70
64.70
44.40
44.00
44.40
48.70
56.71
52.43
58.71
59.00
43.71
43.17
44.00
47.86
May
1
2
3
4
73.00
79.00
66.30
77.40
53.10
54.60
49.70
56.60
66.14
64.14
59.57
70.43
June
1
2
3
4
5
65.30
75.57
75.14
78.57
79.29
53.90
58.43
56.29
58.86
57.29
July
1
2
3
4
82.29
87.43
96.29
94.43
Aug.
1
2
3
4
92.86
95.71
90.57
84.71
40 inch
Max.
Min.
37.00
35.43
37.00
38.57
50.00
48.43
48.00
48.14
49.83
48.14
48.00
48.14
39.71
38.43
39.14
39.14
39.57
38.29
38.86
39.14
48.57
49.00
48.57
48.57
48.43
49.00
48.57
48.57
34.29
38.00
38.43
42.57
43.14
36.57
36.29
37.86
40.29
41.71
36.14
36.14
37.71
39.86
41.57
48.14
48.00
48.00
48.14
48.14
48.00
48.00
48.00
48.14
48.14
48.00
47.57
49.00
52.86
45.14
44.43
44.29
48.43
43.00
43.00
43.29
45.14
42.57
43.00
43.14
44.43
56.86
51.00
51.43
52.57
56.71
51.00
51.29
52.14
51.14
55.14
49.71
56.29
58.14
61.86
56.00
63.00
53.29
56.86
52.29
58.43
48.71
52.29
52.29
52.86
48.43
52.29
52.14
56.57
54.00
55.43
56.71
57.14
53.71
55.29
56.71
57.00
63.29
68.86
68.86
72.14
72.29
53.14
57.43
56.00
58.43
57.00
56.71
62.57
62.86
65.14
64.57
54.29
58.71
59.00
60.43
60.14
53.43
54.00
55.14
57.29
58.00
53.14
53.71
54.86
57.00
58.00
57.57
58.43
60.14
61.57
62.00
57.43
58.43
59.83
61.29
62.00
61.00
62.57
70.14
70.14
76.00
80.14
88.71
86.29
61.29
63.43
70.86
70.43
68.29
71.14
80.29
77.29
64.14
65.43
74.57
73.14
58.00
59.43
65.00
66.00
58.00
59.00
64.57
66.00
62.29
63.29
66.00
67.71
62.29
63.14
65.57
67.57
69.14
71.00
66.71
63.71
87.57
87.86
83.14
66.43
69.57
71.57
67.71
64.29
76.00
79.57
75.43
72.29
72.00
73.71
71.00
67.29
66.00
66.86
68.00
66.86
66.00
66.86
68.00
66.71
68.43
69.14
70.00
70.00
68.29
69.14
70.00
70.00
24
1971
Weekly Mean Soil Temperature
2 inch
Month,Week Max.
Min.
Sept.
8 inch
Max.
Min.
4 inch
Max.
Min.
20 inch
40 inch
Max.
Min.
Max.
Min.
64.71
61.57
61.00
61.14
58.57
64.00
61.43
61.00
61.00
57.57
70.00
70.00
68.57
68.14
67.86
70.00
69.71
68.43
68.14
67.43
1
2
3
4
5
76.71
76.57
79.57
78.29
63.14
61.71
57.57
57.57
57.71
51.14
71.57
70.71
73.00
71.71
59.29
61.71
58.14
58.86
58.70
51.14
67.71
65.14
66.14
65.57
56.71
63.57
61.29
63.29
62.14
54.29
Oct.
1
2
3
4
71.14
64.00
55.71
52.28
54.86
53.43
46.86
42.57
64.14
60.29
52.43
49.86
55.71
55.29
48.43
43.43
68.57
58.00
51.29
48.60
56.00
52.86
45.43
42.29
55.57
55.86
52.71
49.71
55.43
55.71
52.28
48.86
66.00
62.71
62.14
60.57
65.57
62.71
61.71
60.14
Nov.
1
2
3
4
50.14
49.71
48.86
48.29
42.14
43.29
42.71
43.43
46.86
46.43
45.71
45.71
43.86
42.71
43.28
43.71
46.14
45.86
44.86
45.00
40.57
41.14
41.86
41.43
46.14
44.29
44.00
43.86
45.86
44.29
44.00
43.71
58.00
56.57
55.00
54.86
57.57
56.29
55.00
54.43
Dec.
1
2
3
4
5
46.71
44.29
40.29
42.29
39.29
42.43
39.14
37.57
39.71
35.71
44.43
42.43
39.43
41.00
38.57
42.86
40.00
38.43
40.29
36.43
44.00
41.00
37.57
39.86
37.14
41.43
37.57
35.86
39.00
35.71
43.00
41.86
39.71
39.00
38.43
43.00
41.57
39.29
39.00
38.14
53.00
52.71
50.57
58.17
48.86
53.00
52.57
50.14
58.17
48.71
25
1970
Weekly Mean Soil Temperature
Month,Week
2 inch
Max.
Min.
4 inch
Max.
Min.
8 inch
Max.
Min.
20 inch
Max.
Min.
40 inch
Min.
Max.
Jan.
1
2
3
4
36.71
43.00
51.14
46.57
34.86
39.29
46.71
40.86
35.29
40.86
48.14
44.00
29.86
39.14
45.86
41.00
30.57
39.29
45.71
42.71
30.57
37.86
44.29
41.71
39.14
38.00
41.00
42.86
38.86
52.14
40.43
42.71
52.71
50.86
50.00
50.00
52.00
50.43
50.00
50.00
Feb.
1
2
3
4
46.86
52.43
49.43
55.29
40.43
41.57
40.43
39.71
43.57
48.29
45.86
49.29
40.29
42.00
40.86
40.29
42.14
44.57
43.29
44.57
41.14
43.00
42.43
42.14
41.57
42.00
42.00
42.00
41.43
41.86
42.00
42.00
50.00
50.14
51.00
51.00
50.00
50.00
51.00
51.00
March 1
2
3
4
50.00
54.29
57.71
58.60
40.71
43.43
42.71
42.60
46.71
49.86
52.29
53.29
40.86
43.43
36.71
43.00
43.71
45.71
47.43
47.86
42.57
43.86
44.86
45.57
41.57
42.00
43.00
42.86
41.57
42.00
42.14
43.14
51.00
51.00
51.14
52.00
51.00
51.00
51.00
51.86
April 1
2
3
4
5
62.10
58.40
61.40
58.00
59.40
42.60
44.00
42.40
45.70
45.60
56.14
53.43
55.71
52.39
53.00
43.29
44.71
37.14
45.14
45.43
50.57
49.14
49.86
49.57
49.14
45.71
46.29
46.14
47.43
46.29
44.71
45.00
45.00
45.29
45.29
44.57
45.00
44.86
45.00
45.14
52.14
53.00
53.00
53.00
53.00
52.00
53.00
52.71
53.00
53.00
May
1
2
3
4
69.90
67.60
76.70
79.70
49.90
48.60
54.30
57.30
63.86
61.43
69.71
73.00
50.71
49.00
55.14
57.29
58.29
55.00
62.00
64.71
53.14
50.86
57.71
59.57
48.57
49.43
52.86
55.14
48.43
49.29
52.57
54.86
54.14
54.29
56.57
54.14
54.00
54.14
56.29
58.14
June
1
2
3
4
88.00
79.43
83.43
94.71
62.00
59.71
61.29
68.14
78.71
72.57
76.43
85.86
62.71
58.43
61.43
69.00
70.14
66.86
68.14
76.29
63.57
62.57
62.57
70.86
57.71
60.00
58.43
63.86
57.43
59.71
58.14
62.00
59.57
61.86
62.00
65.00
59.29
61.86
62.00
64.86
July
1
2
3
4
5
82.14
95.14
92.57
84.71
87.43
61.14
66.43
65.57
65.43
65.00
75.00
86.57
84.14
84.86
79.14
61.86
68.00
67.14
66.86
66.43
67.86
77.00
76.14
76.00
72.57
63.43
71.29
69.86
70.57
68.00
64.43
66.00
66.00
66.00
65.86
64.00
66.00
66.00
66.00
65.86
65.71
67.71
68.00
68.00
68.00
65.43
67.71
68.00
68.00
68.00
Aug.
1
2
3
4
90.86
93.71
92.43
89.43
64.43
65.57
64.57
63.00
81.14
73.63
83.00
79.57
73.57
67.00
66.43
64.14
68.14
74.86
75.14
72.00
68.14
70.00
70.14
67.43
75.14
66.00
66.00
66.00
65.71
66.00
66.00
66.00
69.00
69.14
69.71
69.00
68.86
69.14
69.71
69.00
26
1970
Weekly Mean Soil Temperature
2 inch
Min.
Month,Week Max.
Sept.
Dec,
40 inch
Min.
Max.
83.29 63.00 75.43 63.71 70.14 69.00 65.86 65.57 69.00 69.00
75.71 57.71 69.71 58.14 64.43 60.86 62.43 62.00 69.33 69.33
75.86 54.14 69.00 47.86 63.43 59.57 60.71 60.57 68,14 68.00
1
2
3
67.71 53.86 62.14 53.57 59.00 56.43 57.71 57.71 66.43 66.14
69.43 51.43 64.14 51..66 58.14 54,00 56.00 56.00 65.57 65.43
4
Nov.
20 inch
Max.
Min.
1
2
3
4
5
Oct.
8 inch
Min.
Max,
4 inch
Max,
Min.
70.57 61.86 65.57 54.14 61.14 57.29 59.29 59.14 67.86 67.71
77.00 55.57 70.29 56.57 63.57 59.14 58.00 58.00 67.00 67,00
57.00 49.43 54.29 50.00 52.49 51.43 54.43 54.14 65.00 64.71
52.14 43.43 48.71 43.71 46.57 45.71 49.57 49.14 62.29 62.00
1
2
3
4
50.86 43.86 48.29 43.86 46.29 43.86 47.29 47.14 59.29 59.00
46.86 39.29 44.43 39.86 43.14 41.00 44.43 43.86 57.86 57.43
1
2
3
4
5
42.00
48.00
41.71
40.57
41.86
55.71 46.71
54.00 47.14
37.43
35.43
38.29
36.43
39.00
52.00 46.29 48.00 46.14 48.00 48.00 61.00 61.00
50.57 47.00 48.71 48.00 48.00 48.00 60.29 60.14
40.14
44.71
39.29
38.71
39.71
37.57
41.57
37.43
36.29
39.29
43.14
39.00
36,71
37.71 38.57
27
33.00
35.57
38.00
36.00
42.29 42.00
40.86 40.86
40.71 40.71
39.14 39.14
37.43 38.86 38.71
55.43
53.00
53.00
52,86
51.86
54.86
53.00
53.00
52.57
51.71
1969
Weekly Mean Soil Temperature
Month,Week
2 inch
Max.
Min.
4 inch
Max.
Min.
8 inch
Max.
Min.
20 inch
Max.
Min.
Jan.
1
2
3
4
5
31.29
40.71
34.57
34.00
34.00
29.57
37.86
33.29
33.57
28.86
Feb.
1
2
3
4
33.50
33.71
40.14
38.57
27.86
32.57
38.00
36.43
March 1
2
3
4
39.86
41.14
59.50 42.50
45.17
61.29 42.86 57.80 44.60 49.29
37.29
37.71
41.67
45.29
41.50 41.00
42.71 41.29
April
1
2
3
4
5
55.00
62.70
60.90
63.70
65.10
46.20
44.60
47.70
46.90
47.10
50.43
56.86
54.71
57.57
58.71
52.86
44.29
47.00
46.57
47.43
48.86
49.86
51.00
52.43
53.71
47.29
45.14
47.57
47.86
49.86
44.57
44.43
45.57
46.29
48.00
43.86
43.71
45.00
46.14
47.86
May
1
2
3
4
78.00
79.30
77.70
72.60
52.10
57.00
58.10
57.40
70.14
72.29
71.71
67.43
53.14
57.00
58.29
57.43
60.57
64.86
65.43
62.14
54.71
59.43
60.00
59.29
50.29
55.14
56.00
57.57
49.29
54.43
55.57
57.14
June
1
2
3
4
87.43
80.14
89.59
71.00
62.29
64.43
66.43
60.71
79.14
74.43
81.71
66.43
63.71
64.14
68.29
59.57
70.14
68.29
73.43
64.14
65.14
64.86
67.57
61.86
July
1
2
3
4
5
77.86
83.29
87.29
92.57
89.29
60.00
63.14
61.57
65.57
63.71
69.43
76.86
79.71
84.29
69.43
60.71
64.00
63.00
67.14
65.29
65.14
70.00
72.00
75.86
74.00
61.71
65.43
66.00
69.86
71.86
Aug.
1
2
3
4
87.43
88.29
90.86
87.00
63.29
64.14
64.43
62.57
79.57
80.43
82.57
81.57
73.00
65.43
67.86
66.40
72.00
72.57
74.43
72.29
67.00
66.71
67.57
67.29
28
40 inch
Max.
Min.
1969
Weekly Mean Soil Temperature
2 inch
Month,Week Max.
Min.
4 inch
Max.
Min.
8 inch
Max.
Min.
Sept.
1
2
3
4
85.57
84.71
74.71
68.43
61.57
62.29
59.71
56.43
78.71
79.86
69.57
64.57
63.43
64.71
60.29
56.57
72.00
72.29
66.00
60.71
67.00
67.57
63.71
60.14
Oct.
1
2
3
4
5
66.71
63.14
56.29
59.43
57.57
55.14
50.29
45.43
48.71
49.71
62.14
58.57
53.14
54.86
53.86
54.57
50.71
45.00
48.43
49.29
59.14
55.29
50.43
51.57
51.14
57.00
53.43
58.57
50.00
50.00
Nov.
1
2
3
4
55.14
55.00
48.71
45.71
42.43
47.43
36.71
34.29
53.71
51.43
46.29
43.43
49.29
47.57
42.86
40.00
50.86
49.29
44.86
42.57
49.86
48.57
44.00
42.29
Dec.
1
2
3
4
5
40.00
45.57
47.71
46.14
43.43
36.71
41.29
42.57
41.86
37.86
38.43
43.57
45.00
43.86
40.86
36.71
41.14
42.57
41.57
38.00
38.14
41.71
43.29
43.00
40.00
37.71
40.86
42.43
42.57
39.29
29
20 inch
Max.
Min.
40 inch
Max.
Min.
1968
Weekly Mean Soil Temperature
2 inch
Month,Week Max.
Min.
4 inch
Max.
Min.
8 inch
Max.
Min.
20 inch
Max.
Min.
40 inch
Max.
Min.
Jan.
1
2
3
4
5
43.43
40.86
46.14
45.86
38.71
Feb.
1
2
3
4
47.50 39.50 45.00 41.67 46.83 43.33 46.83 46.00 47.00 47.00
March
1
2
3
4
55.71
55.57
59.30
56.60
45.71
42.14
41.40
45.60
54.57
49.71
52.57
50.40
44.14
41.86
41.14
42.60
April
1
2
3
4
60.70
64.10
60.90
63.70
44.30
43.90
41.70
47.00
53.83
55.14
46.57
56.43
43.67
42.86
40.43
44.29 52.25 47.50 51.00 51.00
May
1
2
3
4
5
75.60
73.10
73.60
72.10
73.30
49.30
48.30
51.40
55.90
55.30
67.00
65.00
66.57
65.71
56.71
48.43
48.29
51.29
55.71
53.57
57.86
57.14
59.14
59.86
59.57
51.86
52.14
52.71
57.00
55.43
54.43
55.57
57.43
59.57
58.71
53.86
55.29
56.71
59.14
58.14
June
1
2
3
4
71.71
77.86
90.43
86.43
56.43
56.71
60.00
62.71
65.29
71.86
80.57
79.14
54.43
55.57
59.86
63.14
60.43
63.86
71.43
72.14
56.57
58.14
64.00
65.57
59.71
60.71
65.00
67.14
59.57
60.43
64.29
66.86
July
1
2
3
4
5
91.57
95.14
75.00
92.00
99.00
64.57
67.86
62.14
62.57
68.86
83.14
86.86
79.14
82.57
89.29
65.00
68.29
63.00
62.86
69.43
74.29
79.71
72.71
73.43
79.43
67.29
72.29
66.43
66.43
72.57
67.43
71.29
70.29
69.71
72.86
66.86
70.71
70.29
69.43
72.29
Aug.
1
2
3
4
92.71
87.86
71.86
69.80
67.29
62.29
58.86
60.60
84.00
79.14
66.43
66.57
68.14
63.86
58.71
58.29
75.86
72.79
63.29
61.57
70.71
67.71
66.57
60.14
73.14
72.14
67.14
64.29
72.86
71.29
66.57
66.14
39.43
35.57
41.43
41.57
36.71
43.71
39.71
45.86
46.29
38.43
41.29
37.57
41.29
43.29
35.86
43.43
40.57
43.86
46.43
39.43
30
42.57
39.29
42.14
44.57
37.57
48.00
44.29
45.71
48.43
45.57
48.00
43.29
44.71
47.43
44.29
49.14
49.14
48.00
48.00
47.86
49.14
49.00
47.86
48.00
47.57
1968
Weekly Mean Soil Temperature
2 inch
Min.
Month,Week Max.
4 inch
Min.
Max.
8 inch
Max.
Min.
20 inch
Min.
Max.
Sept.
1
2
3
4
74.00
70.29
64.86
65.71
59.86
60.00
55.57
53.86
67.57
66.14
61.00
52.88
63.14
62.71
57.57
56.71
65.14
66.57
64.14
61.43
65.00
66.14
64.00
61.14
Oct.
1
2
3
4
5
65.00
57.00
54.29
55.43
55.71
52.57
48.71
47.14
48.29
46.00
59.86
53.71
51.57
52.00
51.00
56.00
51.57
49.43
49.86
49.00
60.43
59.14
55.86
54.86
55.00
57.14
58.86
55.43
54.71
54.86
Nov.
1
2
3
4
49.58 43.86 46.86
51.75 45.75 48.50
45.86
45.43
2
3
4
40.14
39.86
39.29
36.57
Dec.
31
44.43 52.14 51.57
46.00 51.75 51.50
44.00
44.14
39.29
39.57
38.43
35.00
40 inch
Min.
Max.
1967
Weekly Mean Soil Temperature
2 inch
Month,Week Max.
Min.
4 inch
Max.
Min.
8 inch
Max.
Min.
20 inch
Max.
Min.
40 inch
Max.
Min.
Jan.
1
2
3
4
44.14
45.71
46.14
44.29
39.29
39.14
40.14
40.57
42.57
43.29
44.00
43.00
40.57
39.43
42.00
40.57
43.14
42.57
43.86
43.00
41.86
40.57
43.29
41.71
46.86
46.14
47.29
46.57
46.71
44.86
47.29
46.14
50.86
50.14
49.29
48.14
50.86
49.57
49.14
48.14
Feb.
1
2
3
4
48.29
48.43
47.43
50.00
41.86
38.43
41.14
37.00
46.57
47.00
45.71
47.86
42.43
40.71
42.29
40.57
46.29
45.00
44.14
44.71
44.57
42.71
42.86
41.57
47.86
47.43
47.14
46.86
47.57
47.29
47.00
46.14
48.00
48.00
48.00
48.00
48.00
48.00
48.00
48.00
March 1
2
3
4
5
51.29
50.14
49.71
54.10
51.70
39.29
37.86
40.14
43.30
41.30
48.14
47.71
46.71
51.29
48.57
41.71
40.29
42.29
45.29
40.86
46.00
45.29
44.43
49.14
42.43
43.29
42.14
42.00
46.43
43.86
47.43
47.00
47.00
48.43
49.29
47.29
46.86
46.86
48.14
48.00
48.00
48.00
48.00
48.00
48.86
48.00
48.00
48.00
48.00
48.71
April 1
2
3
4
61.60
56.00
56.90
59.40
42.90
44.30
41.60
45.10
55.43
53.00
54.00
55.29
44.29
46.43
43.57
46.86
51.00
50.29
49.29
53.00
46.43
47.57
45.43
48.86
43.71
51.29
50.00
51.71
49.29
50.86
49.29
51.14
49.00
49.43
50.00
50.00
49.00
49.14
49.29
50.00
May
1
2
3
4
5
62.10
67.00
79.10
84.00
73.40
46.40
51.70
54.40
56.40
54.70
58.14
64.86
74.29
77.43
69.00
47.14
53.71
57.43
61.43
57.43
53.86
60.29
66.86
71.14
64.57
49.00
55.29
59.14
64.86
59.86
52.43
57.29
59.71
65.00
63.14
51.57
56.43
58.71
63.57
62.57
50.43
51.71
54.00
56.00
58.57
50.29
51.71
53.57
55.86
58.14
June
1
2
3
4
80.00
85.71
84.43
93.14
60.71
61.57
64.59
65.57
76.14
79.43
80.14
86.00
63.43
64.57
67.57
68.57
72.14
74.29
77.29
80.29
66.57
67.14
70.43
71.57
65.29
67.29
71.43
71.57
65.14
66.00
70.43
70.57
58.29
61.14
62.43
64.57
57.71
61.00
62.29
64.00
July
1
2
3
4
97.86
93.00
91.29
91.86
69.00
65.57
66.29
66.71
90.43
86.29
85.57
86.43
72.86
70.14
70.29
70.86
85.43
81.71
81.43
80.43
76.86
75.00
74.43
75.71
75.29
75.71
85.71
76.00
74.29
74.86
85.29
75.57
65.71
67.29
68.43
69.00
65.43
67.29
68.00
69.00
Aug.
1
2
3
4
5
99.43
90.00
96.71
91.86
88.86
67.29
67.14
70.86
65.57
58.00
88.71
85.43
88.86
86.57
84.43
71.86
71.29
74.43
71.71
70.71
82.57
79.43
84.57
82.29
79.57
76.57
75.29
78.57
76.86
75.00
76.86
76.00
77.71
78.14
76.43
76.43
75.71
76.86
77.86
76.29
69.43
70.00
70.57
71.57
72.00
69.29
70.00
70.57
71.57
72.00
32
1967
Weekly Mean Soil Temperature
2 inch
Month,Week Max. Min.
8 inch
Max.
Min.
4 inch
Max.
Min.
40 inch
20 inch
Min.
Max.
Min .Max.
Sept.
1
2
3
4
88.00
81.71
81.00
81.00
64.00
59.86
60.71
59.29
82.86
77.71
77.29
76.86
68.57
64.14
65.14
64.00
78.00
73.86
74.14
73.29
73.00
69.00
69.14
68.29
76.00
73.43
72.86
72.29
76.00
72.86
72.29
71.43
72.00
71.71
70.71
69.29
72.00
71.71
70.57
69.29
Oct.
1
60.71
64.43
59.86
56.00
52.86
51.57
49.29
48.57
60.71
62.86
57.43
54.57
56.43
55.71
51.29
50.86
61.29
61.43
56.86
54.71
60.14
58.71
54.43
53.00
67.86
64.00
61.86
59.14
67.57
63.71
61.43
58.86
70.43
66.14
64.57
63.14
68.86
66.14
64.43
63.00
Nov.
1
2
3
4
5
55.29
52.29
53.00
50.14
43.57
44.71
46.29
40.57
40.43
40.14
54.57
51.00
52.43
48.14
43.86
47.86
47.86
50.00
44.14
42.00
53.57
50.71
52.00
47.71
44.57
51.00
49.29
51.29
46.29
43.86
58.29
55.14
55.86
53.29
50.71
58.14
54.71
55.57
53.14
50.43
61.00
59.43
58.57
57.29
55.71
60.57
59.43
58.57
57.00
55.57
Dec.
1
2
3
4
42.86
39.29
36.57
49.71
39.71
36.29
34.43
44.86
42.86
40.14
36.86
47.71
41.43
38.43
35.57
45.71
43.00
40.57
36.56
46.43
42.29
39.57
36.00
45.43
47.71
46.57
43.14
46.57
47.57
45.86
42.86
46.43
52.57
51.29
49.57
49.00
52.43
51.29
49.43
49.00
2
3
4
33
1966
Weekly Mean Soil Temperature
2 inch
Month,Week Max.
Min.
4 i nch
Max.
Min.
8 inch
Max.
Min.
20 inch
Max.
Min.
40 inch
Max.
Min.
Jan.
1
2
3
4
42.71
41.86
39.57
41.14
38.86
39.00
35.29
35.86
40.86
40.86
40.71
40.29
38.86
40.00
37.86
37.71
40.86
41.43
41.43
40.14
39.14
40.86
38.43
38.57
44.43
45.29
45.14
44.00
42.00
44.57
44.57
43.14
45.43
44.86
45.00
45.00
45.14
44.86
45.00
45.00
Feb.
1
2
3
4
42.00
43.57
49.14
42.00
37.29
35.57
39.86
36.71
41.57
43.14
47.29
42.43
37.29
38.43
42.14
39.14
41.29
41.71
45.86
42.86
39.86
39.29
42.86
41.00
44.29
44.86
46.14
46.71
43.14
43.86
44.00
44.43
45.00
45.43
45.43
46.00
45.00
45.00
45.14
46.00
March 1 42.00 41.14 42.43
2
47.43 40.71 45.57
3
48.57 42.14 47.57
4
51.10 39.00 48.00
5
61.60 48.30 56.29
39.14
42.00
44.14
40.43
48.43
42.86
44.71
47.00
45.00
52.14
41.00
42.57
45.29
42.14
49.14
46.71
46.57
48.86
47.29
50.86
44.43
44.71
47.29
45.86
49.43
46.00
46.00
47.00
47.00
47.86
46.00
46.00
46.43
47.00
47.29
April
1
2
3
4
68.70
63.00
65.90
70.90
47.60
48.10
45.10
46.10
50.57
50.43
47.14
50.57
58.71
55.57
56.00
59.00
52.29
52.29
51.29
52.86
53.43
55.29
55.57
56.57
52.14
54.14
54.00
54.14
50.29
52.14
52.00
52.86
49.86
52.14
51.71
52.00
May
1
2
3
4
80.70
73.60
72.90
79.60
54.10
52.10
50.70
53.10
72.43
68.14
67.86
73.57
56.43
54.86
53.57
57.71
66.29
63.86
61.71
68.43
59.57
58.00
56.86
60.86
60.71
62.71
60.43
63.43
58.57
60.86
58.29
61.00
53.57
55.71
56.43
56.86
53.14
55.57
56.00
56.57
June
1
2
3
4
5
73.00
84.57
87.43
83.86
77.29
51.00
59.43
62.14
61.57
63.57
58.14
77.57
78.86
78.86
78.00
55.00
61.86
64.71
64.00
64.00
64.57
71.57
75.29
75.00
74.43
58.57
63.71
67.29
68.71
68.43
64.29
65.43
66.29
72.00
71.00
62.00
63.57
60.71
70.86
69.14
62.71
59.14
60.71
63.43
64.00
62.29
58.43
60.29
62.57
64.00
July
1
2
3
4
80.00
86.29
91.57
91.14
61.71
65.00
64.00
64.71
74.00
80.14
83.14
83.43
62.00
66.71
68.00
69.71
71.57
76.14
79.29
79.71
65.14
70.29
71.00
73.00
69.14
71.71
72.71
74.86
66.57
69.71
70.57
72.43
64.86
65.50
65.86
67.14
64.00
64.86
65.86
66.71
Aug.
1
2
3
4
5
92.57
89.71
88.00
82.71
80.29
67.71
65.00
64.71
64.43
57.00
85.43
82.71
82.71
79.71
74.71
71.43
69.29
68.71
68.86
61.14
81.43
79.29
78.71
77.57
70.71
75.86
73.57
73.14
72.71
65.43
76.14
76.29
75.43
75.00
72.14
74.43
74.29
73.43
74.86
70.57
68.14
71.00
69.86
70.00
69.29
67.86
70.29
69.14
69.86
68.43
61.30
57.10
59.70
63.14
34
1966
Weekly Mean Soil Temperature
2 inch
Month,Week Max.
Min.
8 inch
Min.
Max.
4 inch
Max.
Min.
79.57
67.86
67.71
69.29
65.86
58.71
58.29
60.00
75.86
67.86
65.43
66.43
40 inch
Min.
Max.
Sept.
1
2
3
4
85.43
73.71
70.86
72.14
63.57
55.29
54.86
57.14
72.43
70.57
68.14
67.57
71.00
69.57
67.29
66.71
68.29 68.00
67.86 67.86
67.14 67.86
66.14 66.00
Oct.
1
2
3
4
72.86
60.29
57.29
58.86
55.57 67.57 58.86 66.71 62.43 67.57
46.43 57.86 49.00 58.86 54.57 64.29
41.71 54.00 45.00 53.86 49.71 60.71
9 56.29 53.71 58.57
51.71 57.29
66.71
63.29
59.14
57.71
65.43
65.00
63.14
60.29
65.00
64.86
62.71
60.14
Nov.
1
2
3
4
5
58.00
48.71
51.43
48.00
49.71
47.29
42.29
47.71
42.00
45.57
55.43
48.43
50.57
47.29
48.14
50.29
37.71
48.29
43.86
45.14
54.86
49.57
50.71
48.00
48.29
52.00
47.29
48.86
45.57
46.29
58.71
55.71
55.14
54.43
53.43
57.71
54.57
53.57
52.57
51.29
60.00
59.00
57.43
55.86
54.43
59.57
58.57
57.14
55.57
54.00
Dec.
1
2
3
4
45.71
47.57
44.00
44.00
45.29
44.14
40.14
39.43
44.71
46.71
43.29
41.43
42.43
44.14
41.14
40.29
44.14
46.71
46.29
42.29
42.29
44.86
44.57
41.57
56.57
50.57
50.57
48.29
50.57
48.43
48.29
47.86
53.86
52.14
52.29
51.57
53.29
51.57
51.86
51.43
35
70.00
63.14
62.43
62.43
20 inch
Min.
Max.
1965
Weekly Mean Soil Temperature
2 inch
Month,Week Max.
Min.
4 inch
Max.
8 inch
Min.
Max.
Min.
20 inch
Max.
Min.
40 inch
Max.
Min.
Jan.
1
2
3
4
38.2
39.2
42.1
44.7
35.4
37.1
37.1
42.4
38.0
39.0
41.7
44.2
35.8
37.5
38.5
42.5
38.7
39.4
42.2
43.7
37.0
38.5
39.2
42.7
42.8
43.0
43.7
44.8
41.7
41.5
42.5
43.7
45.0
45.0
45.1
45.1
44.7
44.7
44.8
44.7
Feb.
1
2
3
4
45.2
43.1
48.0
49.4
37.8
38.8
42.0
39.7
44.4
44.5
46.0
47.5
40.0
40.0
43.5
41.8
44.2
43.4
46.5
46.2
41.4
41.1
44.4
43.7
46.7
45.4
47.2
48.1
44.5
44.5
46.0
46.7
46.2
46.0
46.2
47.0
45.8
46.0
46.1
47.0
March
1
2
3
4
5
44.0
56.7
57.7
58.1
57.3
39.4
41.3
36.7
41.3
42.9
48.9
52.6
52.1
52.9
53.3
40.9
43.6
41.3
43.9
45.1
47.4
50.6
49.6
50.4
51.3
43.4
46.4
44.7
46.0
47.0
48.0
48.3
49.4
49.7
50.4
46.7
46.7
47.1
47.0
46.6
47.1
47.0
47.7
48.0
49.0
47.0
47.0
47.7
48.0
48.6
April
1
2
3
4
59.4
60.4
62.9
69.4
42.3
45.7
51.7
52.9
54.3
55.4
58.6
63.4
45.4
48.1
51.9
54.6
51.6
52.7
56.0
60.3
47.3
49.6
52.6
56.0
52.3
51.4
52.7
56.7
49.6
48.3
51.6
53.3
49.1
50.0
50.7
52.3
49.0
49.7
50.3
51.6
May
1
2
3
4
62.9
80.3
70.6
75.3
44.9
51.4
53.7
52.9
58.0
70.4
65.9
68.7
49.4
55.7
56.9
56.1
55.3
64.7
62.9
64.1
50.3
58.1
58.9
58.3
56.1
58.3
61.1
60.6
53.0
55.0
58.7
58.0
53.9
53.9
55.6
57.0
52.9
53.1
55.0
56.0
June
1
2
3
4
5
80.6
81.6
69.4
86.1
88.1
57.6
60.7
56.1
60.7
62.6
74.6
75.6
66.6
77.3
80.0
59.9
62.4
57.0
62.6
66.3
68.9
72.9
63.6
72.9
76.1
62.1
65.6
59.3
65.4
69.1
64.3
67.9
65.4
67.3
71.3
61.3
64.4
62.9
64.1
69.5
53.6
60.0
61.0
61.1
61.8
57.3
59.4
61.0
61.1
61.5
July
1
2
3
4
92.9
89.1
85.3
91.0
67.4
66.0
62.7
66.0
84.4
82.6
78.4
83.2
70.0
72.3
66.7
69.7
80.4
79.1
76.3
79.7
74.0
73.9
70.3
73.2
1
2
3
4
85.71
86.86
84.00
81.14
66.43
65.57
64.43
63.29
80.43
81.43
78.43
75.43
70.71
71.29
68.29
66.86
78.57
79.43
77.00
73.86
73.14
74.14
71.57
71.57
Aug.
36
(Records for July were
destroyed in fire)
75.14
75.57
74.86
73.00
73.43
75.14
72.29
71.57
67.86
68.00
68.43
69.00
67.43
68.00
68.00
69.00
1965
Weekly Mean Soil Temperature
2 inch
Min.
Month,Week Max.
-8 inch
Min.
Max.
4 inch
Max.
Min.
20 inch
Max.
Min.
40 inch
Min.
Max.
Sept.
1
2
3
4
81.00
80.14
73.71
77.29
59.43
60.43
59.29
56.43
75.57
75.43
70.14
71.57
63.71
65.29
62.43
69.57
73.29
72.86
69.14
69.71
67.29
67.86
65.71
63.86
71.86
71.86
70.43
68.86
70.57
71.43
69.71
67.57
Oct.
1
2
3
4
5
73.14
68.29
63.14
59.14
60.00
53.71
55.57
51.57
55.14
50.71
69.29
65.14
61.14
57.43
57.43
59.14
69.86
55.57
51.29
54.29
67.29
63.57
60.71
57.00
55.71
62.43
60.86
57.14
53.43
54.14
68.57
66.29
63.57
61.43
60.29
67.43 66.14 66.00
65.71 56.43 56.14
62.86 63.43 63.14
60.71 63.29 63.00
60.00 61.43 61.29
Nov.
1
2
3
4
5
57.43
54.57
51.86
47.29
46.14
44.00
48.29
48.00
43.43
41.00
55.71
52.43
52.86
47.43
45.29
53.86
50.00
49.57
45.00
42.43
55.86
53.14
51.57
48.48
45.43
55.00
51.86
50.14
46.86
43.71
60.14
58.71
56.71
54.86
51.14
60.00
57.71
55.71
53.71
57.29
60.43 60.29
59.57 59.14
58.57 57.86
57.00 56.57
55.14 54.71
Dec.
1
2
3
4
48.71
38.29
36.29
39.29
43.57
35.71
34.00
36.00
47.29
39.00
36.43
37.57
45.43
38.00
35.57
36.57
47.86
40.86
37.71
39.57
46.71
40.00
36.57
37.86
52.14
48.86
45.43
45.57
51.14
48.43
43.71
43.00
54.00 53.86
51.43 51.14
50.57 50.14
48.29 47.43
37
68.29 68.29
68.29 68.00
68.00 68.00
67.43 67.00
1964
Weekly Mean Soil Temperature
2 inch
Max. Min.
4 inch
Max. Min.
8 inch
Max. Min.
inch
Max. Min.
40 inch
Max. Min.
1
46.0
42.1
41.9
39.7
46.0
41.4
35.9
36.3
37.0
40.1
44.9
40.7
40.4
39.7
44.9
42.7
38.1
37.6
37.9
40.7
45.4
41.1
41.0
40.0
44.1
43.9
39.7
38.7
38.9
41.9
47.6
46.3
45.4
44.1
45.9
46.1
44.9
43.3
42.7
43.4
47.3
48.0
47.9
46.4
46.0
47.0
47.9
47.3
46.1
45.3
Feb.
1
41.9
43.9
46.1
47.4
36.1
35.7
37.9
35.3
41.0
41.9
44.1
44.7
37.9
38.0
39.3
37.7
41.1
41.3
43.9
43.6
39.6
38.9
41.1
40.3
45.7
44.9
45.9
46.3
44.0
42.7
43.7
43.4
46.0
46.0
46.0
46.0
45.9
46.0
46.0
46.0
March
1
43.6
44.0
51.7
52.7
37.6
37.1
40.4
40.7
42.6
42.4
49.6
49.3
39.1
38.7
42.3
42.9
42.7
42.9
46.7
47.1
40.7
41.1
43.9
43.9
46.0
46.0
47.3
48.0
44.3
44.6
45.7
46.9
46.0
46.0
46.0
47.0
46.0
46.0
45.9
47.0
April
1
59.3
59.4
60.3
62.7
57.0
38.4
43.3
42.6
44.6
43.9
53.9
54.4
54.4
56.6
54.3
45.0
42.9
44.6
46.0
46.3
51.9
51.6
52.0
53.4
52.7
46.9
47.7
47.9
48.1
48.7
50.1
50.9
52.7
52.9
53.7
48.9
49.6
50.7
51.0
52.7
50.7
48.4
49.4
50.0
50.1
47.0
47.9
48.4
49.4
49.9
May
1
58.7
65.3
72.0
80.9
43.0
47.1
51.1
53.3
54.1
60.3
66.7
73.4
45.7
48.6
54.4
55.9
52.3
57.3
62.3
67.1
48.3
51.1
56.4
57.9
53.1
62.0
58.4
61.1
51.9
53.3
56.1
58.3
51.0
51.4
52.9
54.7
50.6
51.0
52.4
53.6
June
1
77.7
70.9
71.0
86.4
45.6
55.7
56.4
50.6
72.7
66.6
66.3
78.7
60.4
57.3
58.7
60.4
68.6
63.3
64.1
73.1
63.3
59.6
61.1
64.3
65.0
63.4
64.4
66.4
62.1
61.9
62.4
63.3
56.6
58.0
58.7
59.3
55.4
58.0
58.1
58.3
July
1
82.1
87.1
88.3
86.4
89.0
57.7
58.9
62.4
61.3
65.7
77.3
80.4
82.4
79.7
84.1
61.4
62.4
65.6
64.7
69.3
71.7
77.4
77.4
75.4
80.0
65.9
66.1
69.3
68.9
73.3
68.3
69.7
72.7
71.1
73.3
66.6
66.7
69.9
69.6
72.1
61.0
62.3
64.1
65.0
65.0
60.3
61.9
63.4
65.0
65.0
Aug.
1
81.4
88.4
86.7
84.9
62.4
64.0
61.6
62.3
76.1
82.6
80.6
79.1
63.9
67.1
64.3
66.4
73.0
78.7
76.3
75.7
66.6
72.4
68.6
70.4
71.4
72.3
72.9
74.0
70.4
71.9
71.1
72.6
66.0
66.0
68.4
68.0
66.0
66.0
68.0
67.4
Month,Week
Jan.
2
3
4
5
2
3
4
2
3
4
2
3
4
5
2
3
4
2
3
4
2
3
4
5
2
3
4
38
20
1964
Weekly Mean Soil Temperature
Month,Week
2 inch
Max. Min.
4 inch
Max. Min.
8 inch
Max. Min.
20 inch
Max. Min.
40 inch
M ax . Min.
Sept.
1
2
3
4
5
75.0
71.3
75.7
75.0
69.7
55.7
52.6
52.9
53.4
51.4
70.6
69.9
72.1
70.3
66.6
59.0
57.3
56.1
57.3
55.3
67.6
66.1
68.1
67.3
65.0
63.4
61.4
62.6
61.3
60.1
70.1
68.4
68.0
67.1
66.6
68.4
67.7
67.0
66.0
66.3
67.7
66.6
65.6
65.1
64.9
67.6
66.4
65.1
65.1
64.6
Oct.
1
2
3
4
69.9
58.9
61.1
53.7
52.9
49.7
42.0
44.6
66.7
58.7
57.3
52.1
56.3
52.3
45.9
47.3
63.3
58.3
55.6
52.6
59.4
55.0
49.7
50.4
64.9
63.9
59.3
58.1
63.7
62.6
58.3
57.4
64.0
63.0
61.6
58.6
63.4
62.3
61.4
59.7
2
3
4
52.6
45.6
40.6
43.4
44.1
41.9
34.7
39.6
51.0
46.0
40.7
42.9
46.4
43.4
37.7
40.6
51.4
46.9
41.0
43.4
49.3
45.1
40.0
41.7
57.0
53.3
49.3
48.4
56.6
52.7
48.6
46.1
58.7
55.7
55.3
52.3
58.4
55.4
54.4
52.0
1
2
3
4
48.0
44.5
36.5
44.0
43.5
40.7
32.0
40.8
47.0
44.4
37.0
43.2
45.1
42.1
34.8
40.7
47.1
44.2
38.7
42.2
45.5
43.2
37.1
40.4
49.4
49.4
46.1
43.0
48.4
48.1
45.0
40.5
51.2
50.7
49.8
45.7
50.8
50.5
49.7
45.4
Nov.
Dec.
39
1963
Weekly Mean Soil Temperature
Month,Week
2 inch
Max. Min.
4 inch
Max. Min.
8 inch
Max. Min.
20 inch
Max. Min.
40 inch
Max. Min.
Jan.
1
2
3
4
5
44.7
37.0
33.3
35.0
34.9
40.7
34.0
30.4
31.9
32.7
42.9
38.0
32.9
34.9
34.4
40.7
36.0
31.7
32.6
32.7
41.7
37.7
32.7
33.4
34.4
39.6
35.6
32.3
32.1
33.0
45.7
45.9
41.4
40.4
40.6
45.1
44.9
40.6
39.1
39.1
49.3
49.1
47.6
45.4
45.0
49.1
48.9
47.1
45.3
44.7
Feb.
1
2
3
4
49.3
51.0
52.0
51.3
43.1
40.6
45.0
43.6
46.4
47.0
48.7
48.4
42.0
43.3
45.9
45.3
44.7
44.3
46.3
46.3
40.9
41.4
44.0
43.1
43.6
45.3
47.9
48.9
41.6
43.1
46.4
47.3
43.1
44.9
46.6
48.0
43.0
44.4
46.0
47.4
March
1
2
3
4
53.4
50.6
54.0
50.3
38.3
38.1
41.9
43.3
47.7
47.1
48.6
46.7
41.3
41.7
43.4
44.4
44.1
44.1
45.4
45.6
39.7
40.4
41.3
42.1
48.3
48.1
48.4
49.6
46.7
47.4
47.3
47.6
48.0
48.0
48.0
48.7
48.0
48.0
48.0
48.1
April
1
2
3
4
54.7
56.1
53.1
55.3
43.9
44.4
42.6
43.6
50.6
52.0
49.6
51.7
45.6
46.6
45.4
46.4
53.4 42.6
49.1 44.6
48.7
51.1
51.9
43.4
47.1
48.9
50.6
49.9
49.0
49.7
50.0
50.1
48.1
48.6
49.7
49.9
May
1
2
3
4
5
60.3
60.1
70.0
82.3
82.3
44.7
48.1
48.6
56.4
56.6
55.4
56.1
63.9
75.1
75.0
48.0
50.9
52.0
60.3
60.6
*
*
*
*
*
*
69.0 62.9
70.7 64.1
52.4
53.6
56.0
61.3
63.4
51.3
50.9
54.7
58.6
62.0
50.0
50.9
52.4
54.1
56.6
50.0
50.7
51.9
53.3
56.0
June
1
2
3
4
70.4
84.3
67.4
70.7
55.3
58.6
63.7
55.7
67.1
77.0
81.4
67.7
58.6
62.4
67.6
59.9
65.4
72.0
77.0
66.6
61.3
64.7
71.1
62.3
64.3
64.9
70.3
68.1
63.3
62.9
67.9
66.6
58.4
59.0
60.7
62.0
57.7
58.6
60.1
62.0
July
1
2
3
4
5
78.4
75.1
85.4
85.9
88.3
56.9
56.9
61.3
61.9
62.6
72.9
71.9
78.4
78.7
81.9
60.4
61.1
65.3
66.7
67.0
68.3
68.3
73.3
74.7
77.6
62.6
63.9
67.4
69.7
70.9
65.4
66.9
67.9
69.7
70.0
63.6
65.4
66.0
58.9
70.0
62.0
62.0
62.3
63.1
63.0
61.7
61.7
62.0
62.7
63.0
Aug.
1
2
3
4
90.7
91.4
81.4
77.4
65.4
66.3
62.9
59.0
83.4
84.3
76.1
73.3
68.9
70.3
66.9
62.1
77.6
79.3
74.3
70.3
72.4
74.3
70.1
65.3
71.7
74.1
74.0
70.1
70.0
72.6
73.0
67.3
65.4
66.4
67.3
67.3
64.7
65.7
67.3
66.9
40
*
*
1963
Weekly Mean Soil Temperature
Max. Min.
Max. Min.
66.6
67.4
57.9
58.4
74.6
75.4
65.3
67.3
69.0
70.4
61.3
61.7
70.3
72.1
69.0
67.0
69.7
70.7
66.0
64.6
67.0
67.0
66.7
65.1
66.6
67.0
66.1
65.0
71.4
64.4
61.4
54.6
50.7
61.0
54.6
54.1
50.1
47.4
69.6
62.6
60.4
55.3
50.9
63.6
57.3
57.1
53.4
49.3
67.9
65.1
64.1
61.0
56.4
65.1
61.6
61.6
59.6
55.4
65.0
65.0
63.6
62.4
60.6
65.0
64.6
63.1
62.0
59.9
44.1
47.1
41.6
40.9
48.6
51.3
46.4
46.6
45.4
48.9
44.6
43.3
49.3
51.3
47.0
47.0
47.7
49.7
46.3
45.0
54.4
54.0
53.1
52.0
53.6
53.4
52.9
50.6
58.0
56.1
55.4
54.6
57.3
56.0
55.3
54.0
35.4
33.7
37.1
38.4
39.9
37.6
40.3
42.4
37.6
36.3
38.0
39.7
41.1
42.6
40.6
42.7
39.7
41.7
39.0
40.9
47.4
46.4
43.6
45.4
46.3
45.0
41.7
43.7
52.7
50.6
49.0
47.4
52.4
50.3
48.6
47.0
4 inch
Max. Min.
84.4
85.9
70.3
74.7
62.4
63.1
55.7
55.4
78.4
78.6
66.3
69.9
1
2
3
4
5
75.7
67.1
64.9
56.0
53.7
56.1
51.4
51.0
47.9
43.6
Nov.
1
2
3
4
50.6
52.9
47.1
48.6
Dec.
1
2
3
4
40.0
36.6
42.0
43.7
Month,Week
Sept.
1
2
3
4
Oct.
40 inch
20 inch
Max. Min.
2 inch
Max. Min.
8 inch
Instrument broken
41
1962
Weekly Mean Soil Temperature
Month,Week
2 inch
Max. Min.
4 inch
Max. Min.
8 inch
Max. Min.
20 inch
40 inch
Max. Min.
Max. Min.
Jan.
1
2
3
4
5
54.6
45.0
40.4
30.3
46.3
39.9
39.4
36.6
27.4
37.4
43.6
43.7
38.7
31.9
42.1
40.7
39.9
35.4
29.6
37.0
41.7
41.9
36.7
32.4
37.7
39.6
38.4
34.7
30.4
34.1
47.1
47.0
50.4
41.9
40.7
46.0
45.6
42.9
39.4
38.4
48.0
48.0
46.9
45.4
44.1
47.3
47.1
45.9
44.4
43.1
Feb.
1
2
3
4
46.4
50.7
49.4
38.4
43.1
43.1
38.1
33.7
44.1
47.3
46.1
38.6
41.7
43.9
40.1
34.1
41.4
44.4
42.6
36.3
38.0
41.6
39.7
34.6
44.3
46.9
48.0
43.7
41.6
44.0
46.3
42.1
44.9
45.7
47.4
46.1
43.6
44.6
46.4
45.1
March
1
2
3
4
49.6
54.0
52.9
54.6
39.0
38.4
42.0
42.7
47.0
48.9
48.7
50.1
40.1
39.6
43.6
43.3
40.9
43.1
45.0
45.6
38.6
39.4
42.7
42.7
44.1
45.7
53.9
58.6
42.9
44.6
46.0
47.4
45.0
45.1
46.3
47.4
43.9
44.1
45.3
46.4
April
1
2
3
4
59.4
63.3
66.6
62.4
47.0
46.1
48.3
45.4
55.1
58.3
61.3
57.9
48.3
47.3
50.0
47.3
51.1
53.3
55.7
53.4
46.7
48.1
50.7
48.9
50.7
53.4
56.9
55.7
48.7
52.4
56.0
54.7
48.3
52.4
52.9
53.6
47.3
51.4
51.9
52.4
May
1
2
3
4
52.3
61.6
61.9
73.0
47.4
48.6
49.6
53.9
58.1
58.7
58.7
67.4
50.4
50.3
51.6
54.7
54.6
54.4
54.6
61.0
50.0
49.9
51.6
55.7
56.1
56.4
57.0
58.9
54.6
55.6
56.0
57.3
53.6
54.0
54.3
56.0
52.4
53.3
53.7
54.3
June
1
2
3
4
71.6
81.1
86.7
85.6
52.1
56.1
59.0
62.3
57.7
74.3
79.1
79.6
54.3
59.1
63.6
66.0
61.7
67.9
72.6
74.0
55.1
59.6
65.6
66.6
60.7
64.4
67.9
70.1
58.6
62.1
65.1
69.1
57.3
60.6
62.4
61.9
54.9
59.4
60.3
60.7
July
1
2
3
4
80.0
87.0
87.7
97.9
60.1
63.1
61.3
68.1
76.0
80.0
79.4
89.0
63.9
65.9
65.0
72.1
71.3
74.4
73.7
81.7
65.1
68.1
64.0
73.9
70.3
71.3
71.3
74.0
68.7
69.9
70.1
72.6
63.7
64.7
65.0
65.3
62.7
63.9
64.4
65.0
Aug.
1
2
3
4
5
89.0
73.9
85.7
87.7
83.9
65.3
58.7
61.6
64.4
60.7
84.3
70.6
81.0
81.3
78.3
69.9
61.7
66.0
68.6
65.4
78.3
67.4
75.0
75.7
73.1
72.3
62.9
68.0
69.7
67.4
75.1
71.3
71.3
73.6
73.1
75.0
70.0
70.0
72.1
71.3
66.9
68.7
67.0
68.6
67.0
66.4
67.9
76.3
68.3
66.0
42
1962
Weekly Mean Soil Temperature
Month,Week
2 inch
Max. Min.
4 inch
Max. Min.
8 inch
Max. Min.
20 inch
Max. Min.
40 inch
Max. Min.
Sept.
1
2
3
4
86.4
72.6
74.4
71.9
60.7
55.9
58.7
55.9
81.3
69.9
71.3
68.7
66.1
60.9
63.0
60.7
74.0
66.4
67.0
65.0
68.0
62.1
63.4
61.0
72.6
70.6
68.3
68.1
71.6
69.6
67.4
67.3
67.7
69.1
67.0
66.7
67.3
68.3
66.9
66.6
Oct.
1
2
3
4
5
65.3
53.3
59.0
60.1
58.6
50.1
49.0
46.1
59.0
49.3
62.0
53.7
54.3
56.4
54.6
53.7
51.7
49.6
53.4
51.3
58.6
53.7
52.3
53.7
53.0
53.7
51.4
48.7
51.6
51.0
65.1
60.9
58.0
58.0
57.9
64.1
60.3
57.4
57.6
57.4
65.4
63.1
60.9
59.3
58.9
64.9
62.7
60.1
59.0
58.7
Nov.
1
2
3
4
55.1
50.6
49.3
45.4
46.6
44.1
44.4
40.1
52.3
48.7
47.6
44.4
49.0
46.7
45.6
42.0
51.6
54.0
47.6
44.0
49.9
46.0
45.6
42.1
56.7
54.1
52.7
59.4
55.6
53.4
52.3
51.3
58.1
57.4
56.0
54.3
57.9
56.8
55.6
54.1
Dec.
1
2
3
4
46.7
44.3
48.0
37.6
41.6
41.9
45.1
34.7
45.1
44.7
47.4
38.9
43.3
43.7
46.0
37.3
43.4
43.3
45.9
38.4
41.3
42.3
44.4
36.6
49.6
49.6
49.4
47.6
48.4
48.9
49.0
47.1
52.7
52.0
51.0
50.6
52.4
51.9
51.0
50.3
43
1961
Weekly Mean Soil Temperature
Month,Week
2 inch
Max. Min.
4 inch
Max. Min.
Max. Min.
20 inch
Max. Min.
40 inch
Max. Min.
8 inch
Jan.
1
2
3
4
40.6
45.3
48.7
44.4
34.7
39.6
42.4
36.1
41.3
45.6
48.0
43.1
36.4
40.9
43.4
37.7
38.7
42.6
45.0
41.1
35.1
40.6
43.3
39.1
43.3
51.6
46.0
45.4
42.4
44.1
45.3
44.7
46.7
45.9
46.4
47.0
46.0
45.7
46.1
47.0
Feb.
1
2
3
4
48.9
50.9
47.4
48.4
42.0
43.1
41.3
40.4
47.3
49.3
46.7
47.7
43.3
43.9
42.3
41.3
44.3
47.4
45.0
44.4
41.7
44.7
42.6
41.7
46.0
48.6
50.0
48.7
45.3
47.1
48.0
48.0
47.1
48.1
48.6
48.6
47.0
47.6
48.0
48.0
March 1
2
3
4
5
47.4
48.1
54.1
57.1
58.6
38.6
40.0
43.4
43.4
42.3
45.7
45.0
50.0
52.5
52.9
40.6
40.4
43.4
45.1
43.7
43.6
42.9
47.4
48.4
49.4
41.1
40.9
43.9
45.9
45.4
58.9
47.1
47.4
50.9
50.0
48.0
46.1
46.7
49.7
50.0
48.0
48.0
48.0
49.4
48.9
48.0
47.9
48.0
49.4
48.3
April
1
2
3
4
63.6
61.1
57.1
71.1
44.1
43.3
45.7
45.1
57.5
56.6
54.6
55.6
46.2
44.6
46.4
46.1
61.0
52.4
51.4
51.7
48.1
46.9
47.3
46.4
53.7
53.9
54.1
52.4
52.9
54.0
53.4
52.1
49.9
50.9
51.0
51.1
49.6
50.7
51.3
51.0
May
1
2
3
4
5
62.7
63.0
72.1
68.6
77.3
49.7
50.4
54.0
52.3
57.1
57.4
57.9
65.7
64.4
69.9
51.0
52.4
55.7
54.9
59.3
54.0
54.3
60.9
60.1
64.7
51.4
51.6
53.9
55.7
59.1
54.4
54.9
57.1
60.0
60.7
54.0
54.7
55.7
60.0
60.3
51.0
52.0
53.0
54.4
55.3
51.0
51.4
52.1
54.1
54.9
June
1
2
3
4
77.0
81.7
90.3
85.7
57.0
61.0
62.9
61.9
70.4
75.1
84.1
79.4
59.7
62.0
66.6
65.0
65.3
68.4
75.0
72.3
59.7
62.6
69.6
67.4
64.7
64.9
69.9
70.3
63.4
63.1
69.3
69.7
58.0
58.9
60.4
62.6
57.4
58.4
60.3
62.1
July
1
2
3
4
81.4
95.1
95.7
92.6
59.7
65.7
67.0
65.4
75.6
87.1
88.3
85.4
63.7
68.6
70.7
69.3
71.1
78.9
80.0
78.4
66.3
70.9
74.0
72.1
70.4
71.6
74.6
76.1
69.9
69.9
74.0
75.6
63.9
64.6
65.9
67.9
63.6
64.3
65.3
67.4
Aug.
1
2
3
4
5
96.9
93.4
87.0
91.0
80.0
67.1
66.3
66.3
66.4
61.3
86.4
86.3
51.9
85.0
76.3
70.9
70.6
69.9
69.3
64.3
79.7
78.3
76.1
77.7
72.7
72.3
73.1
71.9
70.9
67.3
75.0
75.0
75.0
75.4
73.1
75.0
75.0
74.9
74.6
72.0
68.0
68.0
68.3
69.4
70.0
68.0
68.0
68.3
67.4
69.9
44
1961
Weekly Mean Soil Temperature
Month,Week
2 inch
Max. Min.
4 inch
Max. Min.
8 inch
Max. Min.
40 inch
20 inch
Max. Min. Max. Min.
Sept.
1
2
3
4
77.4
78.7
70.6
71.9
54.6
58.7
53.0
49.3
72.7
73.7
66.7
67.4
61.4
61.3
55.7
53.1
67.1
68.4
62.4
60.7
61.0
63.1
58.9
56.0
72.0
69.9
68.4
66.0
71.0
69.4
67.1
65.1
69.4
68.3
67.4
66.1
69.0
67.7
67.0
65.7
Oct.
1
2
3
4
73.0
61.1
61.6
52.9
52.1
50.0
46.6
45.0
68.1
59.3
58.3
50.7
55.4
52.9
50.0
47.1
62.3
56.6
55.6
49.1
57.3
53.0
42.3
47.9
64.4
64.3
61.7
57.9
64.0
62.6
60.9
57.0
65.3
64.4
63.0
60.9
64.4
64.0
62.1
60.4
Nov.
1
2
3
4
5
52.3
49.4
39.3
42.7
46.0
41.0
37.7
36.4
37.4
41.0
49.6
46.4
44.6
42.1
44.6
43.7
40.1
39.4
39.0
42.7
47.1
44.4
42.4
40.6
42.7
45.1
42.0
40.4
38.7
41.6
56.0
52.4
50.7
48.0
47.0
55.0
51.1
49.6
47.0
46.3
58.9
57.0
54.9
52.9
50.9
57.7
56.0
53.9
52.3
50.3
Dec.
1
2
3
4
46.1
35.1
44.9
46.9
38.4
32.6
40.1
41.3
44.6
36.3
44.3
45.1
41.0
34.1
41.6
42.0
42.9
36.0
41.7
43.4
40.9
34.4
40.0
40.6
48.0
45.1
44.1
46.1
46.9
43.6
43.3
45.3
50.0
49.9
48.0
48.0
50.0
49.1
47.3
47.3