2014 Annual Weather Report OrchardMet, a new weather station, started operations in late July Smith College Ada & Archibald MacLeish Field Station Whately, Massachusetts, USA Written by Isabel Cochran (‘15) & Paul Wetzel March 2015 Introduction Weather conditions at Smith College’s Ada & Archibald MacLeish Field Station are recorded at the WhatelyMet weather station. This weather collection site is located at the end of Poplar Hill Road in Whately, Massachusetts, USA (Latitude 42 deg. 26 min. 56 sec. N Longitude 72 deg. 40 min. 50 sec. W). The meteorological instruments of WhatelyMet (except the rain gauge) are mounted at the top of a tower 25.3 m tall, well above the surrounding forest canopy. The tower is located on a local ridge at an elevation 250.75 m above sea level. WhatelyMet tower & bunker where data server is located 2 2014 MacLeish Field Station Weather Report OrchardMet Terrain surrounding OrchardMet. Note close proximity of trees to weather station. The second weather data collection site, known as OrchardMet, is located about 250 m north of the first tower in an open field next to an apple orchard. Full canopy trees (~20 m tall) are within 30 m of this station. This station has a standard instrument configuration with temperature, relative humidity, solar radiation, and barometric pressure measured between 1.5 and 2.0 m above the ground. Wind speed and direction are measured on a 10 m tall tower and precipitation is measured on the ground. Ground temperature is measured at 15 and 30 cm below the ground surface 2 m south of the tower. The tower is located 258.1 m above sea level. Data collection at OrchardMet began on June 27th, 2014. This report describes the weather data collected at WhatelyMet and OrchardMet during 2014. It provides highlights of the year’s weather as well as general trends that were observed. We hope that you find the report both interesting and useful. All data reported in this document are available electronically. Height comparison between weather station Please direct all questions and data inquiries towers, trees and people. to Paul Wetzel at pwetzel@smith.edu or telephone 413.585.2646. 2014 MacLeish Field Station Weather Report 3 Definitions of Climatic Indicators The precipitation and biological temperature indicators calculated for this report provide a method of comparing general, biologically meaningful climatic trends in different years. The indicators are based on average daily temperatures and rainfall summations. Even though days are in the name of the temperature indicators, they do not actually reflect periods of 24 hours. The indicators really measure the number of degrees the average temperature was above or below a threshold temperature each day of the year. These values are described at http://ccr.aos.wisc.edu/climate_modeling/wisconsin_Climate/descriptions.php. All temperature terms were defined in degrees Fahrenheit and converted to degrees Celsius for this report. Freezing Degree Days—The number of degrees Fahrenheit that the daily mean temperature is below 32 °F. For example, two days with daily mean temperatures of 20 °F and 40 °F have 12 and 0 freezing degree days, respectively. Annual total freezing degree days are calculated by summing all of freezing degree days. Growing Degree Days—The number of degrees Fahrenheit that the daily mean temperature exceeds 50 °F . For example, two days with daily mean temperatures of 75 °F and 40 °F have 25 and 0 growing degree days, respectively. Annual total growing degree days are calculated by summing all of growing degree days. Last Spring Freeze Date—The last day between January 1st and mid-summer with a low temperature below 32 °F. First Autumn Freeze Date—The first day after mid-summer with a low temperature below 32 °F. Length of the Growing Season—The number of days between the last spring freeze and first autumn freeze. Frequency of 1” Precipitation Events—The number of days per year with precipitation of at least one inch (25.4 mm). Frequency of 2” Precipitation Events—The number of days per year with precipitation of at least two inches (50.8 mm). Frequency of 3” Precipitation Events—The number of days per year with precipitation of at least three inches (76.2 mm). 4 2014 MacLeish Field Station Weather Report A student from Biology 205 field trip stands near OrchardMet. Air Temperature & Relative Humidity The monthly average temperature in 2014 ranged from -5.7 °C in January to 21.3°C in July (Table 1, Figure 1). The highest recorded temperature at WhatelyMet was 31.6 °C on July 23th. The lowest recorded temperature was -21.4 °C on January 6th (Appendix A). The average daily temperature range (daily maximum-minimum) was 10.3 °C. The maximum daily temperature range was 19.9 °C and occurred on April 24th. The daily minimum temperature range was 1.2 °C and occurred on April 12th. Table 1. Average monthly temperature (OC) at both WhatelyMet and OrchardMet stations. Month January February March April May June July August September October November December WhatelyMet OrchardMet -5.7 -4.1 -1.6 7.9 14.7 19.6 21.3 19.9 16.9 11.6 3.3 0.4 21.1 20.5 18.9 15.9 10.9 2.9 0.0 Figure 1. Daily average temperature (black line) and daily maximum and minimum temperatures (gray lines) over the year at WhatelyMet. 2014 MacLeish Field Station Weather Report 5 Figure 2. Daily average temperature (black line) and daily maximum and minimum temperatures (gray lines) over the year at the OrchardMet station. 6 During 2014 there were 2505 growing degree days which occurred between April 11th and November 25h, nonconsecutive. The first autumn freeze date occurred on October 19th at WhatleyMet and on October 20th at OrchardMet. There were 864 freezing degree days. The spring freezing degree days occurred between January 1st and March 27 th, nonconsecutive. The fall freezing degree days occurred between November 15th and December 31st, nonconsecutive. The last spring freeze date occurred on April 18th the same date as in 2013. 2014 MacLeish Field Station Weather Report The growing season was 184 days. Percent average monthly relative humidity ranged from 55.3% (March) to 86% (August) (Table 2). Generally, WhatelyMet relative humidity values were slightly higher than OrchardMet values. This may be because the WhatelyMet sensor senses under continuous air flow compared to the OrchardMet sensor which is surrounded by a heat shield cooled by convection. Table 3. Average monthly relative humidity (%) at both WhatelyMet and OrchardMet stations. Month January February March April May June July August September October November December Soil Temperature WhatelyMet OrchardMet 67.7 66.2 55.3 64.9 69.2 78.1 84.5 86.0 n/a n/a 67.3 82.5 72.4 80.4 80.2 81.8 82.9 69.7 79.3 Soil temperature is measured at 15 and 30 cm below the ground surface. Before mid— September the temperature at 15 cm deep is slightly higher than the temperature at 30 cm depth (Figure 3). Over the next month the two soil depths are about equal. However, after mid—October the 30 cm depth temperature is higher than the temperature at 15 cm. Soil temperatures at the beginning of 2015 appear to drastically level off, this is due to the significant snow pack that developed at the beginning of the year. The snow pack provides a significant insulation to the soil. Figure 3. Soil temperature at 15 and 30 cm deep in the later half of 2014 and the beginning of 2015. 2014 MacLeish Field Station Weather Report 7 Precipitation A total of 1348 mm of precipitation was recorded at WhatelyMet during 2014 (Table 4). Although precipitation is relatively evenly distributed across the year, precipitation totals were highest in July and lowest in September. April and July had the most number of precipitation events (Table 4, Figure 4). Annual precipitation accumulated at a fairly steady rate through August (Figure 4). A dry spell occurred from mid-August through mid-October with the exception of the largest precipitation event of the year, 92.7 mm on 13 August. Table 4. Total monthly precipitation (mm) at MacLeish Field Station, Whately, MA for 2014 for both the WhatelyMet and OrchardMet stations. The number in parentheses indicates the number of precipitation events in a given month. Month January February March April May June July August September October November December Total WhatelyMet 75.9 (13) 103.6 (13) 101.9 (8) 134.9 (15) 110.5 (13) 102.6 (12) 233.5 (15) 122.2 (10) 24.4 (10) 145.6 (14) 99.6 (13) 123.4 (16) 1348.1 OrchardMet 213.4 (15) 120.2 (11) 25.1 (9) 195.8 (17) 93.2 (14) 124.5 (21) 772.2 The most significant precipitation events occurred in May, June, July, August, and November. (Figure 4). The largest precipitation event in 2014 occurred on August 13th when 92.7 mm (6.9% of the annual total) of precipitation fell. During 2014, there were fifteen, 25.4 mm (1”) precipitation events; one, 50.8 mm (2”) precipitation events; and one, 76.2 mm (3”) precipitation event. 8 2014 MacLeish Field Station Weather Report Figure 4. Daily precipitation totals (mm) and cumulative precipitation (mm) recorded at WhatelyMet. Go to the weather dashboard for current weather at the MacLeish Field Station! http://macleish.smith.edu OrchardMet in November with the precipitation gauge prepared for snow 2014 MacLeish Field Station Weather Report 9 Differences Between Precipitation Sensors at Two Stations Precipitation is measured in two slightly different ways at MacLeish (see Appendix C). Both sensors are the tipping bucket type, but at WhatelyMet an electric heater is used to melt snow during the cold months. During heavy snowfalls, the snow melts slowly and can take several days to be converted to liquid water and be measured. This is particularly true when cold temperatures occur after the snowfall. The result is that a single precipitation event can be recorded as multiple events. In addition, the WhatelyMet sensor is located close to a single story building which may obstruct some rainfall events. Snow falling into the OrchardMet sensor must be melted by antifreeze and then measured. The OrchardMet sensor is unobstructed and located in an open field. To investigate the possible variation between the two sensors differences in measurements from each sensor each day were plotted (Figure 5). Only the period prior to snowfall was used in the analysis. Once snow began to fall sensor differences were expected to be different because of the different methods of melting the snow. Most differences between the two sensors were quite small. However, on six out of 94 days (6%) the differences between the two gauges quite large and can be considered outliers (above the 1.5*IQR line). The measurements of the two sensors on two days, October 1st and 4th, were an order of magnitude different from each other. It is not clear why this happened except that rainfall at the two sites may have been truly different. Such differences were surprising since the sites are only ~ ¼ km apart. Neither sensor was consistently greater or lower than the other. Precipitation differences between the two stations will be monitored further in 2015. Figure 5. Differences between daily rainfall measurements between two weather stations. Solid black line is the median of all differences; dashed line represents 75% quartile; dotted line is boundary of upper box plot “wisker [1.5 * inner quartile region (IQR)]. 10 2014 MacLeish Field Station Weather Report APPENDIX A WhatelyMet Monthly Climate Summaries for 2014 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet JANUARY 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 Mean/ SUM Avg. Temp Max Temp Time Max Deg. C Deg. C Temp -7.3 -11.8 -15.2 -13.3 -4.3 2.4 -14.3 -12.0 -7.1 -4.7 6.6 3.4 3.0 5.1 3.2 1.7 0.5 -0.7 -2.8 -1.2 -11.9 -14.2 -13.4 -12.8 -7.8 -9.8 -6.1 -11.7 -9.8 -8.2 -2.0 -2.8 -8.0 -10.4 -5.2 0.7 11.6 -6.6 -5.0 -0.9 0.4 12.3 9.8 7.6 5.8 7.5 3.4 4.8 0.5 1.1 5.0 -9.1 -8.1 -7.3 -8.6 -4.0 -6.4 1.4 -6.8 -4.6 -2.9 5.1 -5.7 -0.6 11:57 0:02 11:26 15:01 23:59 10:37 0:05 14:28 13:39 15:02 18:41 0:02 14:10 14:50 14:00 1:04 14:52 14:08 14:07 13:42 0:02 12:29 13:40 13:57 12:28 13:07 12:10 12:11 14:07 14:46 12:50 Min Temp Deg. C -10.7 -15.8 -19.4 -21.4 -10.9 -7.0 -16.9 -17.8 -12.3 -9.3 -0.4 -0.3 -1.7 2.9 -1.0 -0.4 -3.3 -2.9 -4.8 -9.2 -14.8 -18.4 -18.9 -17.3 -12.0 -13.9 -10.9 -15.8 -13.9 -14.0 -8.8 -10.4 Time Min Daily Rain Avg. Rel. Temp (mm) Humid (%) 6:41 23:57 23:47 6:22 7:22 23:42 19:09 7:28 6:51 1:49 0:01 23:41 5:27 23:56 5:51 20:42 7:20 23:56 7:54 23:53 23:57 8:00 6:58 5:11 4:35 7:13 23:59 7:16 7:18 7:05 0:00 0.0 6.9 1.5 0.0 3.6 22.4 0.0 0.0 0.0 0.3 20.6 0.8 0.0 11.7 0.0 0.8 0.0 5.6 0.0 0.3 0.0 0.0 0.0 0.0 1.5 0.0 0.3 0.0 0.0 0.0 0.0 75.9 54.6 83.6 72.6 55.4 69.2 92.2 45.0 50.3 53.5 90.5 100.0 76.4 71.9 99.3 94.2 98.6 86.8 99.0 86.9 72.0 60.9 48.3 47.9 44.2 68.9 51.4 62.4 33.4 33.2 41.8 54.1 Avg. Avg. Solar Pressure Rad. (W) (mb) 992 87.0 986 14.3 983 89.8 993 105.7 989 95.8 967 12.8 980 104.9 994 112.4 1000 113.4 996 49.8 974 9.0 972 48.9 983 93.0 975 8.7 980 109.4 979 18.4 980 103.4 975 19.7 971 86.1 970 64.6 981 53.0 976 123.9 983 113.1 987 134.6 969 47.2 972 113.8 974 28.5 989 113.9 985 140.9 992 144.6 985 94.0 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 2454.6 A1 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet FEBRUARY 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 Mean/ SUM Avg. Temp Max Temp Deg. C Deg. C 1.5 3.2 -1.4 -2.6 -4.2 -6.3 -6.6 -7.3 -5.4 -7.0 -9.8 -9.8 -5.2 -1.7 -2.3 -5.1 -7.8 -7.6 -3.4 3.3 1.4 4.6 5.6 -2.8 -7.1 -9.0 -10.2 -11.2 6.2 9.1 1.1 2.7 -3.2 0.1 -0.8 -1.9 -0.2 -2.6 -3.7 -2.8 -1.2 0.8 -0.7 1.7 -0.9 -3.3 1.6 9.7 3.3 11.2 9.7 3.2 -2.9 -2.2 -3.4 -4.6 -4.1 0.9 Time Min Temp Deg. C Time 13:09 11:57 0:03 11:28 2:45 15:39 13:28 10:49 12:41 13:28 13:08 12:17 23:12 13:36 14:54 13:16 12:39 22:03 23:59 13:36 19:00 15:16 12:57 0:00 11:13 12:48 14:12 14:02 -2.8 0.7 -3.7 -6.8 -5.1 -11.8 -11.9 -13.3 -9.8 -11.6 -14.3 -17.1 -8.7 -4.6 -4.2 -9.5 -13.9 -10.6 -7.0 -2.0 -0.1 -1.4 2.2 -7.2 -10.5 -14.9 -15.0 -16.1 7:10 6:46 18:47 6:50 20:21 23:57 6:20 6:18 6:17 23:43 6:38 6:04 0:12 8:13 6:44 23:59 6:49 4:08 4:49 6:14 2:05 6:31 7:02 23:34 23:55 23:35 5:27 6:08 -8.2 Daily Rain Avg. Rel. (mm) Humid (%) 0.0 0.8 4.3 0.0 11.9 13.0 1.8 0.0 0.8 0.0 0.0 0.0 11.7 18.5 5.6 0.0 0.0 2.3 8.4 14.7 9.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 103.6 54.5 92.7 93.9 78.5 98.0 69.1 53.3 42.2 61.9 65.3 55.1 43.7 86.4 88.0 94.1 61.6 45.9 77.5 99.5 80.6 100.0 65.4 42.5 43.7 48.8 40.7 40.9 30.8 Avg. Avg. Solar Pressure Rad. (W) (mb) 990 100.3 981 53.8 989 19.7 995 126.3 981 20.0 988 148.3 989 161.7 989 122.4 984 127.3 984 161.7 992 167.0 997 157.0 978 15.5 959 104.0 974 47.5 976 151.2 990 185.3 986 32.3 980 34.5 987 155.2 980 23.4 980 184.6 980 80.8 978 150.3 980 115.1 977 171.0 973 125.1 990 210.6 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 3151.9 A2 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet MARCH 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 Mean/ SUM Avg. Temp Max Temp Deg. C Deg. C -6.6 -1.5 -9.6 -9.1 -6.4 -7.8 -3.8 2.9 -0.3 0.8 6.9 3.3 -9.3 -4.0 3.5 -4.4 -6.1 -2.4 0.1 3.2 0.8 1.6 -0.8 -6.1 -3.5 -3.0 -0.9 3.4 5.9 3.0 2.0 0.4 4.1 -6.1 -2.9 -1.7 0.7 3.0 11.3 3.8 4.5 14.1 6.9 -3.4 2.1 11.5 -0.3 1.1 6.0 5.0 8.8 4.1 11.5 2.4 -0.7 2.2 0.2 6.2 8.9 11.9 4.0 7.0 -1.6 4.1 Time Min Temp Deg. C Time 15:06 13:25 16:24 14:18 13:52 14:31 13:35 14:21 13:06 16:02 14:15 2:54 0:00 16:13 12:01 14:28 15:02 14:42 15:00 12:34 12:52 14:14 11:29 15:50 14:47 13:56 13:47 23:19 12:43 12:40 12:43 -15.6 -7.0 -14.8 -16.9 -11.4 -14.9 -12.0 -2.6 -4.2 -3.4 -0.6 -3.5 -12.6 -11.3 -1.8 -9.1 -11.5 -10.7 -4.9 -0.1 -2.8 -4.0 -8.2 -12.1 -10.3 -7.7 -8.8 -0.5 2.3 1.5 -0.4 6:18 23:59 23:38 4:53 23:55 5:31 5:55 5:20 6:21 4:18 3:30 23:59 7:07 3:28 23:59 23:10 5:04 5:59 5:58 0:54 23:34 2:41 23:57 5:52 3:23 23:48 3:09 3:05 23:39 23:59 7:08 -7.1 Daily Rain Avg. Rel. (mm) Humid (%) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12.2 0.0 0.0 0.8 0.0 0.0 0.0 14.5 5.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.1 26.4 27.7 7.4 101.9 36.2 46.5 39.6 36.6 54.2 30.0 37.3 55.4 43.2 53.0 57.4 81.0 74.9 54.5 73.6 41.4 33.2 29.0 55.6 84.3 57.7 63.3 43.7 35.0 43.3 39.1 29.7 87.8 97.8 100.0 99.9 Avg. Avg. Solar Pressure Rad. (W) (mb) 991 172.3 984 85.5 987 118.4 992 158.5 992 81.5 1000 231.7 990 223.1 977 153.9 980 228.0 974 72.9 970 217.6 964 32.9 967 148.5 983 145.1 976 156.4 986 234.2 986 235.9 991 251.2 989 104.1 974 170.6 980 167.2 979 183.8 983 168.7 987 272.4 984 176.7 978 162.6 991 248.2 985 45.6 988 126.3 973 74.3 980 137.2 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 4985.3 A3 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet APRIL 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 Mean/ SUM Avg. Temp Max Temp Deg. C Deg. C 6.5 7.2 6.8 4.8 3.1 6.2 7.9 8.2 7.0 8.2 10.7 12.2 13.2 16.9 11.3 0.2 1.9 3.1 9.0 8.6 11.3 12.8 8.0 7.7 11.1 6.0 7.1 10.5 5.6 4.0 14.9 16.5 13.0 9.6 8.0 14.4 12.5 15.4 13.3 16.8 19.7 19.9 22.0 23.5 15.5 5.2 9.5 8.0 16.1 15.7 20.9 20.9 11.3 13.9 17.6 10.7 11.0 17.1 9.2 5.2 7.9 14.2 Time Min Temp Deg. C Time 14:26 16:01 14:19 11:54 10:47 15:31 13:52 15:28 13:24 13:45 11:43 15:19 15:52 12:28 12:09 16:34 16:18 15:44 14:27 14:44 15:38 14:04 0:00 16:14 15:14 16:00 10:35 13:09 14:19 13:55 -0.9 1.0 0.2 0.3 0.2 -1.4 3.4 3.8 0.7 -0.2 5.5 4.5 6.9 12.2 -1.4 -4.6 -4.2 -3.3 1.3 1.4 1.0 5.2 5.2 2.2 3.6 3.0 3.8 3.8 2.5 2.4 5:28 5:51 5:32 23:36 23:11 5:04 21:24 22:13 23:51 1:54 0:21 3:34 8:15 5:39 23:58 5:42 5:06 3:55 4:01 4:39 4:42 4:59 6:57 5:11 4:37 5:29 3:49 4:38 23:03 4:38 1.9 Daily Rain Avg. Rel. (mm) Humid (%) 0.0 0.0 0.0 5.1 1.3 0.0 4.8 6.1 0.0 0.8 4.3 0.0 0.5 0.0 37.3 4.3 0.0 0.0 0.0 0.0 0.0 0.3 2.3 0.0 0.0 26.9 0.3 0.0 1.8 38.9 134.9 71.8 69.9 45.7 60.5 84.0 42.4 44.1 92.2 52.6 37.5 82.2 60.9 62.0 80.5 100.0 70.1 54.5 61.2 48.8 36.4 40.3 71.1 82.1 32.6 29.6 99.0 83.1 65.9 85.4 100.0 Avg. Avg. Solar Pressure Rad. (W) (mb) 985 262.2 986 207.4 986 265.5 984 140.7 977 123.8 987 292.7 987 121.2 967 77.9 974 266.7 985 295.2 983 140.9 988 289.6 987 146.6 981 177.3 974 29.7 993 320.4 1006 311.8 997 197.8 992 308.3 997 314.3 985 289.1 971 188.6 969 106.5 977 331.2 981 290.3 977 66.5 982 149.9 986 293.5 997 113.2 996 47.3 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 6166.1 A4 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet MAY 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 Mean/ SUM Avg. Temp Max Temp Deg. C Deg. C 10.4 12.8 13.0 10.0 11.3 11.3 12.9 13.7 12.4 18.0 19.0 22.0 13.8 14.6 17.3 17.4 14.2 13.3 14.0 17.9 18.7 12.8 13.7 13.3 17.3 21.0 18.7 8.6 13.0 13.8 14.0 18.6 17.9 18.6 13.6 17.0 17.4 19.3 19.9 13.7 25.5 25.4 30.1 20.4 22.5 21.6 18.3 19.2 20.1 20.1 23.6 25.0 15.5 18.7 18.3 25.0 26.3 26.5 10.2 20.2 23.1 20.4 14.7 20.4 Time Min Temp Deg. C Time 17:24 13:00 16:39 13:35 14:22 12:12 13:40 11:41 23:50 14:54 14:44 15:43 0:01 15:25 14:49 17:51 17:01 14:36 16:20 14:28 15:01 11:01 15:29 13:15 16:50 18:01 15:07 13:53 15:23 14:24 14:33 3.8 8.1 8.1 7.0 6.8 6.2 6.0 7.5 11.2 13.4 13.0 13.4 8.1 7.5 13.3 16.0 8.8 5.8 7.6 11.6 11.6 11.3 10.7 9.7 8.7 13.8 9.0 6.8 5.7 8.5 9.4 2:51 5:00 2:01 5:01 1:28 1:12 3:43 4:46 11:02 0:00 5:55 1:35 23:59 5:03 4:56 5:05 6:25 3:49 4:32 3:48 5:17 3:48 23:52 4:24 4:20 1:03 23:56 23:27 2:47 5:11 4:32 9.3 Daily Rain Avg. Rel. (mm) Humid (%) 14.7 0.0 0.0 0.3 0.0 0.0 0.0 0.0 5.3 2.3 0.0 0.0 0.0 0.0 2.5 8.6 40.1 0.0 0.0 0.0 0.0 1.3 25.4 0.0 0.3 0.0 0.5 2.3 0.0 6.9 0.0 110.5 99.7 59.6 54.8 69.9 62.9 46.4 31.2 55.2 100.0 92.0 32.0 31.6 55.1 68.6 99.9 100.0 74.1 48.4 37.8 32.4 37.0 91.6 100.0 99.7 76.4 52.5 75.4 100.0 73.4 93.8 93.4 Avg. Avg. Solar Pressure Rad. (W) (mb) 977 206.6 975 202.1 977 153.8 972 235.6 978 306.3 981 238.9 989 298.1 989 259.5 989 36.0 979 164.6 983 339.6 986 311.4 992 221.9 993 273.4 991 73.5 984 24.5 983 340.1 987 328.9 987 250.5 984 343.8 982 331.1 980 56.3 981 88.5 985 166.4 986 290.4 982 125.3 980 174.8 986 68.3 990 342.1 986 201.5 991 221.0 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 6674.8 A5 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet JUNE 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 Mean/ SUM Avg. Temp Max Temp Deg. C Deg. C 17.7 20.1 21.2 17.6 15.6 17.1 21.2 22.8 17.6 20.0 15.7 14.8 16.3 16.8 18.2 20.6 23.2 22.2 21.7 18.2 17.8 19.1 20.6 20.1 22.1 22.4 21.8 22.2 22.2 22.5 24.0 28.6 30.0 23.0 20.2 22.4 27.8 28.9 23.8 27.6 19.1 17.3 18.7 22.3 24.2 26.5 31.5 27.3 27.2 23.7 24.0 25.5 27.4 26.3 28.8 28.8 27.5 30.0 28.9 29.1 19.6 25.7 Time Min Temp Deg. C Time 15:07 16:52 15:47 16:00 15:57 16:03 15:22 13:18 12:39 15:31 11:04 20:55 14:59 13:21 14:36 15:29 13:48 14:04 13:26 13:58 14:27 13:46 14:37 12:45 12:54 15:03 17:06 14:40 14:27 15:26 9.9 11.1 13.9 14.9 12.2 12.2 13.4 15.1 14.3 14.9 14.0 12.6 14.5 12.4 10.7 14.5 15.2 17.7 15.9 12.7 10.5 12.6 13.5 14.3 15.4 17.6 15.4 14.7 15.0 15.1 4:30 3:26 4:23 5:20 23:24 0:25 2:36 4:58 16:28 0:31 23:26 4:28 23:41 22:16 2:42 0:48 4:04 5:14 23:50 23:05 4:09 4:29 4:29 4:49 4:00 23:58 4:50 3:37 4:13 4:40 13.9 Daily Rain Avg. Rel. (mm) Humid (%) 0.0 0.0 10.2 6.4 9.4 0.0 0.0 0.0 5.1 0.3 1.5 7.9 26.2 0.3 0.0 0.0 0.0 7.4 0.0 0.0 0.0 0.0 0.0 0.0 26.9 1.3 0.0 0.0 0.0 0.0 102.6 62.0 50.8 76.3 94.8 99.6 81.9 63.2 56.1 86.3 98.2 99.9 100.0 100.0 91.1 76.7 59.1 79.3 89.5 68.0 48.2 49.8 56.0 66.4 80.7 95.2 95.9 78.2 75.2 80.9 84.6 Avg. Avg. Solar Pressure Rad. (W) (mb) 994 336.8 988 343.6 982 312.4 978 144.1 975 150.8 979 257.9 983 296.6 982 300.7 984 102.7 984 205.3 989 88.7 987 35.8 981 52.0 980 301.7 986 346.2 988 332.1 984 311.7 980 256.4 984 281.1 983 344.7 983 332.3 984 237.4 988 332.9 987 223.0 982 243.2 981 251.4 989 325.8 993 317.5 991 323.6 985 293.6 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 7682.0 A6 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet JULY 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 Mean/ SUM Avg. Temp Max Temp Deg. C Deg. C 24.6 23.3 22.3 17.7 19.9 22.0 23.0 23.8 23.0 20.8 21.2 22.4 21.8 23.1 23.0 20.4 19.8 20.3 20.0 20.1 21.7 24.1 24.0 20.9 20.4 21.1 20.4 19.4 17.9 19.0 19.5 30.7 30.6 27.8 19.4 25.4 27.4 29.1 29.3 28.7 27.7 27.7 29.4 26.7 28.2 26.7 26.1 26.4 26.6 25.2 27.2 27.5 31.0 31.6 26.8 26.6 27.2 26.8 25.5 23.5 24.8 25.8 21.3 27.2 Time Min Temp Deg. C Time 14:04 12:26 12:04 10:27 16:20 16:15 12:29 13:48 15:36 16:51 17:03 15:36 14:14 13:36 14:41 15:43 13:58 16:34 12:45 15:36 13:16 14:19 14:15 14:08 14:42 14:02 14:57 14:24 11:33 13:30 15:20 17.7 19.6 18.8 13.9 14.3 14.5 18.6 18.5 16.9 14.2 16.0 15.4 16.9 20.0 19.8 16.2 13.5 14.2 16.8 16.0 15.4 16.7 18.7 16.6 13.5 15.0 17.3 15.5 14.4 14.1 13.7 4:35 23:32 23:51 23:25 3:02 5:16 3:08 5:22 23:56 4:38 5:16 4:14 4:56 4:21 23:53 23:58 5:15 4:04 6:08 2:54 3:33 4:15 4:31 23:59 4:22 4:04 3:21 23:58 5:23 4:29 4:42 16.2 Daily Rain Avg. Rel. (mm) Humid (%) 0.0 9.4 44.7 24.1 0.3 0.0 10.7 2.0 2.8 0.0 0.0 0.0 6.9 12.5 13.5 18.8 0.0 0.0 0.0 0.0 0.0 0.0 17.0 3.0 0.0 0.0 10.4 47.5 0.0 0.0 0.0 223.5 92.0 98.2 100.0 100.0 62.5 53.0 79.7 94.9 80.7 74.8 61.2 68.8 97.5 98.7 100.0 99.1 78.1 70.8 80.4 79.6 78.5 85.9 92.5 87.5 75.3 76.0 100.0 100.0 86.4 78.8 87.9 Avg. Avg. Solar Pressure Rad. (W) (mb) 980 291.7 981 186.1 983 187.4 983 40.3 984 343.6 983 344.4 978 242.1 976 243.3 979 309.1 988 313.5 991 306.9 991 281.4 984 178.1 981 216.7 978 143.8 978 172.3 984 262.6 991 267.7 993 166.0 990 244.7 990 308.2 988 285.2 980 249.4 980 301.7 984 294.8 983 266.5 976 124.5 970 137.2 979 257.9 985 236.1 988 209.1 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 7412.3 A7 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet AUGUST 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 Mean/ SUM Avg. Temp Max Temp Deg. C Deg. C 21.0 19.7 19.5 21.7 22.2 20.8 19.0 20.4 22.0 23.5 21.7 20.4 17.9 17.1 14.9 17.4 18.9 18.3 18.6 21.0 18.4 16.4 17.8 20.3 23.5 23.2 23.3 19.9 18.2 18.4 22.1 27.3 24.0 25.7 28.3 29.3 26.4 25.2 26.6 28.7 30.0 28.9 24.1 20.5 22.5 19.5 23.4 25.0 23.7 24.9 27.9 22.6 18.3 22.6 27.4 30.8 30.3 30.5 25.6 25.6 24.2 28.2 19.9 25.7 Time Min Temp Deg. C Time 12:02 14:04 14:35 17:04 14:51 13:49 12:30 11:27 14:40 16:51 12:56 13:14 0:48 12:48 15:17 13:00 14:12 13:17 16:17 14:13 14:46 15:00 11:51 16:27 17:05 14:16 12:39 12:07 15:24 14:40 13:25 16.1 15.9 14.9 17.0 17.1 16.5 14.4 14.7 15.2 18.0 16.3 17.0 15.5 11.7 11.5 11.1 14.2 12.7 11.6 14.2 15.6 15.2 14.6 12.6 16.3 16.6 17.0 14.3 10.7 12.3 18.4 2:54 23:55 3:24 4:18 22:56 3:30 4:26 4:50 4:44 23:03 5:16 2:51 23:34 5:11 6:11 5:17 4:51 3:31 4:25 4:09 23:39 1:17 5:50 4:57 2:37 5:07 5:11 23:53 3:04 5:21 1:12 14.8 Daily Rain Avg. Rel. (mm) Humid (%) 0.3 0.0 0.0 3.3 8.6 0.3 0.0 0.0 0.0 0.0 0.0 0.0 92.7 0.3 0.3 0.0 0.0 0.0 0.0 0.0 6.6 8.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 122.2 95.4 94.5 93.1 96.7 89.4 82.5 72.5 69.9 70.3 60.1 83.3 92.0 100.0 79.2 95.4 79.2 85.0 74.8 78.9 88.1 100.0 100.0 100.0 91.7 82.7 83.0 91.2 80.3 78.8 90.8 N/A Avg. Avg. Solar Pressure Rad. (W) (mb) 991 231.7 990 152.2 988 203.4 986 242.8 984 263.8 980 277.7 982 272.6 986 279.6 988 256.6 989 292.9 989 219.0 987 148.7 977 49.1 978 275.7 981 123.7 983 233.1 979 208.5 980 303.6 982 300.4 985 270.0 987 86.9 988 61.2 989 154.4 989 271.6 990 276.4 989 273.3 983 221.0 981 238.9 990 291.2 992 236.7 986 144.4 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 6861.2 A8 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet SEPTEMBER 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 Mean/ SUM Avg. Temp Max Temp Deg. C Deg. C 24.6 24.0 20.8 21.6 23.3 23.6 18.8 17.7 16.1 16.0 17.5 15.2 11.2 11.9 12.4 12.7 13.7 14.1 9.4 13.0 19.0 14.3 13.5 15.3 14.0 17.9 21.3 21.3 17.7 13.7 31.4 29.2 26.5 28.5 30.1 30.5 24.9 23.8 22.4 23.0 23.3 21.6 15.4 20.3 19.1 17.6 20.1 22.1 15.6 20.2 23.5 18.0 22.6 20.9 20.6 24.8 29.4 29.2 21.0 14.8 16.9 23.0 Time Min Temp Deg. C Time 15:50 13:53 14:18 14:43 15:10 12:31 15:35 13:38 13:57 14:14 16:17 13:10 10:40 15:37 15:30 17:14 14:38 12:02 15:22 15:52 14:51 10:22 14:52 11:56 14:46 14:41 15:27 15:11 16:02 15:03 20.2 20.7 16.1 15.2 17.2 16.1 15.1 13.1 11.3 12.0 14.5 8.1 7.0 6.8 6.3 9.8 7.6 7.8 4.0 5.4 14.9 8.6 5.7 10.6 10.6 11.6 15.8 14.9 13.9 12.2 6:12 23:58 5:19 4:43 4:55 23:46 23:58 23:55 2:47 1:00 0:00 23:58 2:45 5:21 2:21 3:27 5:35 23:58 5:32 3:15 4:53 22:49 5:43 4:42 6:28 3:50 5:19 5:51 23:58 6:28 11.8 Daily Rain Avg. Rel. (mm) Humid (%) 0.3 4.3 0.3 0.0 0.0 6.1 1.0 0.0 0.0 0.0 0.8 0.0 9.7 0.3 0.0 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 24.4 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Avg. Avg. Solar Pressure Rad. (W) (mb) 984 225.1 980 174.0 984 260.1 990 249.9 988 216.2 981 191.5 987 245.5 996 241.8 994 192.2 988 169.6 981 42.6 988 249.3 991 64.5 991 251.2 990 219.2 985 96.6 984 224.6 985 188.7 995 250.4 991 109.5 978 97.1 979 247.9 993 227.4 1003 185.6 997 144.7 991 226.7 991 213.4 988 205.5 984 7.8 985 38.0 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 5456.6 A9 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet OCTOBER 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 Mean/ SUM Avg. Temp Max Temp Deg. C Deg. C 13.3 13.4 13.9 11.8 9.3 10.6 15.5 15.8 11.6 10.6 8.4 10.6 9.4 18.8 19.1 18.2 16.5 13.1 7.0 6.7 9.7 8.9 8.6 8.5 12.0 9.0 10.5 11.2 11.3 8.0 7.2 13.9 18.6 20.3 14.2 16.8 18.5 21.3 21.1 17.7 17.2 14.3 17.6 13.3 22.5 21.8 20.2 21.7 17.9 10.8 13.8 14.9 9.9 10.1 11.9 19.1 11.9 15.8 16.6 17.7 13.5 8.9 11.6 16.3 Time Min Temp Deg. C Time 12:26 14:22 15:27 19:06 14:49 15:08 14:44 13:25 12:41 14:19 14:06 14:29 21:20 15:28 14:08 7:50 14:00 13:37 0:00 13:40 13:55 1:17 11:11 12:56 12:55 11:42 14:11 12:49 11:42 10:14 14:46 12.6 9.8 9.2 7.9 4.3 2.4 10.3 9.9 6.7 5.4 6.2 5.0 3.7 16.7 16.8 14.7 12.2 9.2 -0.2 -0.1 7.0 7.5 7.5 6.1 6.7 6.8 7.1 5.5 5.1 4.6 5.9 21:45 23:57 1:40 23:52 4:37 5:10 0:03 23:54 23:43 0:51 22:46 2:34 4:38 21:58 1:41 23:34 23:07 22:35 23:40 2:06 5:38 19:34 8:41 6:34 4:52 5:52 6:08 6:08 23:38 23:31 23:49 7.5 Daily Rain Avg. Rel. (mm) Humid (%) 7.9 0.0 0.0 0.3 0.0 0.0 1.5 12.5 0.0 0.0 3.8 0.0 0.0 0.0 2.8 42.4 0.0 0.0 0.0 0.0 0.3 18.3 49.5 2.0 0.0 0.5 0.0 0.0 3.6 0.0 0.3 145.6 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 72.6 Avg. Avg. Solar Pressure Rad. (W) (mb) 988 30.1 989 90.5 985 209.1 973 18.0 977 213.6 986 186.9 985 94.6 977 176.2 982 170.0 986 189.6 987 101.5 992 193.5 994 61.5 989 21.2 986 44.9 977 24.2 973 105.0 971 60.6 979 100.2 983 130.0 982 70.8 983 18.0 975 36.0 976 105.4 973 148.7 970 75.8 981 160.4 983 107.8 980 30.7 982 127.4 983 14.4 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 3116.4 A10 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet NOVEMBER 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 Mean/ SUM Avg. Temp Max Temp Deg. C Deg. C 4.5 3.3 6.1 11.5 11.3 5.5 4.4 3.4 6.2 7.1 8.9 9.5 3.6 0.5 -1.3 -0.5 1.0 -2.2 -3.9 -0.4 -4.0 -1.9 6.7 11.6 10.9 1.3 -0.6 -3.3 -4.4 4.1 7.0 6.7 12.5 17.5 15.7 8.0 7.2 8.7 12.9 13.1 12.9 16.0 8.9 4.1 3.8 2.6 4.2 3.4 1.5 5.4 0.0 5.5 13.0 15.8 15.6 4.6 4.7 2.0 0.4 8.1 3.3 8.1 Time Min Temp Deg. C Time 10:23 15:09 15:10 14:24 11:03 9:46 11:23 13:11 12:18 14:17 14:14 11:56 11:28 13:54 13:20 14:01 23:18 0:01 13:00 13:32 11:19 14:24 12:45 13:43 1:49 0:00 9:38 12:02 11:18 23:58 2.7 1.3 -0.2 6.3 7.7 4.3 1.4 -1.8 3.0 1.6 3.9 1.6 -0.8 -2.7 -5.4 -4.4 -0.7 -7.2 -7.8 -5.0 -7.0 -8.7 1.6 4.2 4.5 -1.0 -2.9 -8.0 -8.8 -2.9 21:56 23:32 5:23 0:00 23:48 14:09 23:59 5:18 0:34 3:08 4:14 23:54 5:30 22:15 6:26 5:01 3:40 23:54 2:12 23:21 23:30 6:52 0:04 4:38 23:58 19:15 23:28 23:42 3:43 1:14 -1.0 Daily Rain Avg. Rel. (mm) Humid (%) 2.3 0.0 0.0 0.0 0.0 7.9 0.3 0.0 0.0 0.0 0.0 0.3 1.0 1.3 0.0 0.0 25.4 0.0 0.0 0.0 0.0 0.0 0.0 22.6 0.0 9.7 10.9 11.9 2.0 4.1 99.6 82.8 59.6 41.2 39.6 49.0 88.8 84.6 56.8 60.5 62.0 83.0 82.0 61.8 68.9 56.3 61.1 89.2 61.9 41.7 54.4 51.3 50.5 55.4 92.4 75.7 85.7 90.1 79.8 77.0 75.8 Avg. Avg. Solar Pressure Rad. (W) (mb) 980 31.3 977 102.6 983 152.1 986 106.9 985 63.4 975 22.0 971 63.4 980 131.3 981 81.0 988 98.6 986 43.8 982 57.3 984 98.5 983 117.6 991 131.1 991 56.1 975 13.2 974 124.1 985 125.5 978 77.2 989 108.0 991 81.9 987 83.1 975 16.6 980 49.2 984 3.5 981 62.2 986 100.5 992 80.7 986 42.9 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 2325.7 A11 2014 Monthly Climate Summary, MacLeish Field Station, Whately, Massachusetts, USA Station: WhatelyMet DECEMBER 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 Mean/ SUM Avg. Temp Max Temp Time Max Deg. C Deg. C Temp 6.9 -1.0 1.4 0.1 -1.6 0.9 -2.2 -8.2 -0.5 1.3 -1.5 -1.8 -0.5 1.6 1.5 1.2 4.0 1.6 -1.7 -2.7 -1.5 0.3 2.4 3.5 7.1 4.1 5.6 4.2 0.1 -6.2 -7.4 14.3 1.1 5.2 4.7 3.5 2.2 2.4 -5.2 2.2 2.3 -0.3 2.4 4.8 6.1 8.1 2.2 7.8 5.1 -0.3 3.2 -0.3 1.7 3.6 5.2 10.0 8.4 11.0 7.8 5.2 -1.7 -1.8 0.4 3.9 9:36 12:09 18:40 10:26 11:54 20:43 13:39 22:30 16:49 3:25 0:06 12:06 13:04 11:59 13:08 19:45 13:19 13:24 1:22 14:39 13:15 12:06 14:08 21:59 3:58 14:08 14:22 12:50 11:32 14:37 11:46 Min Temp Deg. C 0.8 -3.0 -0.9 -4.2 -6.8 -0.2 -9.7 -12.8 -5.4 -0.6 -2.5 -4.1 -3.6 -1.0 -2.3 -0.4 1.3 -0.4 -5.0 -6.9 -2.8 -1.3 0.8 2.3 3.9 0.7 0.9 0.7 -4.4 -10.6 -11.1 -2.9 Time Min Daily Rain Avg. Rel. Temp (mm) Humid (%) 23:44 8:49 0:03 23:42 7:08 0:00 23:59 7:16 0:12 22:00 23:49 3:42 7:14 0:22 23:21 9:52 0:14 23:54 23:21 6:27 6:28 5:16 2:14 4:08 23:35 20:39 3:01 23:57 23:57 23:44 1:38 0.3 4.3 4.3 0.0 4.3 24.1 0.0 0.0 32.5 10.9 0.5 0.0 0.0 0.0 0.0 3.6 9.4 0.0 0.0 0.0 1.8 0.3 10.4 10.9 3.6 0.0 0.0 2.3 0.0 0.0 0.0 123.4 69.6 68.5 91.8 63.9 68.1 97.3 77.1 76.1 96.2 100.0 99.4 95.0 87.0 86.8 84.7 97.7 96.8 78.5 77.4 77.6 95.0 96.3 99.8 100.0 87.2 73.1 73.4 79.6 57.8 53.4 53.6 Avg. Avg. Solar Pressure Rad. (W) (mb) 989 75.6 1002 64.7 986 22.7 994 73.0 1001 70.7 991 17.0 1000 97.7 1004 38.5 984 6.2 968 14.6 971 31.1 979 76.7 979 98.8 979 73.4 984 94.2 984 22.9 977 38.8 977 59.4 983 31.0 991 67.1 993 24.9 994 35.6 990 12.4 980 10.1 973 58.5 988 74.5 988 92.6 980 32.8 987 70.0 993 94.4 990 95.2 Avg. Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.7 1.7 2.5 2.1 1.4 1.2 1.4 2.1 1.7 2.8 1.4 1.6 1.7 1.8 1.6 1.8 Wind Direction (deg) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 280 329 309 322 2 1 358 359 353 274 299 261 266 313 303 275 Max Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.5 10.3 12.5 10.7 7.7 4.8 4.6 6.5 6.2 14.6 8.8 9.8 9.5 9.7 10.0 10.2 Time Max Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 23:55 17:25 8:50 4:39 1:42 10:54 4:30 23:39 5:34 17:21 3:34 13:10 13:15 11:58 12:55 12:08 Min Windspeed (mps) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Time Min Windspeed N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 9:38 1:59 0:02 0:07 0:02 0:12 0:02 15:31 1:41 0:10 0:19 1:36 1:00 0:11 0:18 2:04 1674.8 A12 APPENDIX B OrchardMet Monthly Climate Summaries for 2014 ! 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Young Co., Model 41382, relative humidity and temperature probe. The probe is housed in a radiation shield and ambient air is continuously blown past the sensor to reduce temperature fluctuation from solar radiation. The calibrated measuring range of the temperature probe is -50 to +50˚C, with an accuracy of ±0.3˚C. The relative humidity probe has an accuracy of ±2%. A pyranometer (Kipp & Zonen, model CM 3) measures solar radiation received in the horizontal (180 degrees) field of view. Typical accuracy is ±5%. Barometric pressure is measured with an R.M. Young barometric pressure sensor, model 61202V. The operating temperature is –50 to +60 ˚C, with an accuracy of ±0.3 hPa at 20 ˚C. 2014 Annual Weather Report Appendix C C-1 Wind velocity and direction are measured with a propeller—weather vane instrument (R.M. Young, model 05103). Wind speed is measured with a four blade helicoid propeller that produces an AC sine wave voltage signal with frequency directly proportional to wind speed. Vane angle is sensed by a potentiometer, making output voltage proportional to wind direction. The anemometer has a wind speed range of 0–100 m/s, with accuracy of ±1% or 0.3 m/s. The propeller threshold is 1.0 m/s (2.2 mph). The wind direction accuracy is ±3 degrees with a vane threshold of 1.1 m/s (2.4 mph). Precipitation is measured using a Campbell Scientific 8” heated siphoning tipping-bucket rain gauge located on the ground. The bucket tips when 0.01 inches (0.254 mm) of precipitation accumulates. The rain gauge has a precision of +/– 2% for rainfall intensities up to 19.7 in/hour (500 mm/hr). Note that if there is a large amount of snowfall it will take 1-3 days for all of the snow to melt and be recorded by the gauge. This is especially true if large snowfalls occur during or are followed by very cold temperatures. The result is that large snowfall events look like extended precipitation events. Also note that the rain gauge is located within 2 m of a one story building. The building may obstruct accurate measurements of certain rain events. 2014 Annual Weather Report Appendix C C-2 At OrchardMet Relative humidity and temperature are measured with a R.M. Young Co., Model 41382, relative humidity and temperature probe. The probe is housed in a naturally aspirated 10 plate radiation shield (R.M. Young) and positioned 2 m above the ground. The calibrated measuring range of the temperature probe is -50 to +50˚C, with an accuracy of ±0.3˚C. The relative humidity probe has an accuracy of ±2%. Precipitation is measured using a Tex- as Electronics (Model #TE525) 8” tipping-bucket rain gauge mounted on a pole ~60 cm above the ground. The sensor is surrounded by a wind screen consisting of 32 steel leaves that swing freely in the wind to help minimize the effect of wind on rain measurements. The bucket tips when 0.01 inches (0.254 mm) of precipitation accumulates. The rain gauge has a precision of ±2% in events up to 1in/hr.; ±3% in events from 1 to 2 in/hr.; and ±5% in events from 2 to 3 in/ hr. During the winter, a snowfall conversion adapter is installed. This adapter uses antifreeze and the sun’s warmth to melt snow, allowing the sensor to measure the water content of the snow. Note that if there is a large amount of snowfall it will take 1-3 days for all of the snow to melt and be recorded by the gauge. This is especially true if large snowfalls occur during or are followed by very cold temperatures. The result is that large snowfall events look like extended precipitation events. Wind velocity and direction are measured with a propeller—weather vane instrument (R.M. Young, model 05103). The same instrument is used on WhatleyMet. Barometric pressure is measured with a Vaisala barometric pressure sensor (Campbell Sci- entific, model CS106). The sensor is located in the data logger enclosure box, ~1 m above the ground. The accuracy is ±1.0 mb at -20° to +45°C. A solar radiation sensor (LI COR model LI200X) measures sun plus sky radiation. It is calibrated for the daylight spectrum (400 to 1100 nm). The sensor is mounted ~2 m above the ground. Typical accuracy is ±3%. Soil temperature is measured at 10 and 30 cm below the ground surface with Campbell Scientific temperature probes (model 108-L). The sensor has a temperature range of -5° to +95°C, with an accuracy of ±0.2°C. 2014 Annual Weather Report Appendix C C-3