MONTHLY CLIMATOLOGICAL SUMMARY for DEC. 2015 NAME: Hawkeye Observatory CITY: Durand STATE: Illinois ELEV: 758 ft LAT: 42° 26' 20" N LONG: 89° 18' 35" W TEMPERATURE (°F), RAIN (in), WIND SPEED (mph) HEAT COOL AVG MEAN DEG DEG WIND DOM DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN SPEED HIGH TIME DIR ------------------------------------------------------------------------------------ 1 37.1 41.2 2:50a 33.0 11:50p 27.9 0.0 0.10 3.9 18.0 12:00p SW 2 32.8 34.2 12:20p 31.1 8:15a 32.2 0.0 0.01 5.3 17.0 12:05p NW 3 34.7 37.2 2:30p 32.8 12:00m 30.3 0.0 0.01 5.8 15.0 3:30p WSW 4 35.6 48.6 2:05p 28.6 6:35a 29.4 0.0 0.00 1.7 13.0 1:55p SSW 5 36.1 46.4 1:55p 30.4 8:35a 28.9 0.0 0.01 3.5 15.0 1:05p SSE 6 34.7 44.2 1:40p 29.1 11:30p 30.3 0.0 0.01 1.6 10.0 1:55a N 7 33.4 39.3 12:30p 26.7 3:15a 31.6 0.0 0.00 3.0 16.0 5:40p S 8 40.1 45.2 11:35p 32.3 6:00a 24.9 0.0 0.00 3.4 14.0 5:35p S 9 40.9 49.4 1:20p 33.0 7:20a 24.1 0.0 0.00 2.8 14.0 1:40p W 10 47.8 56.3 1:25p 40.4 12:15a 17.2 0.0 0.00 8.2 34.0 7:05a SSW 11 42.3 47.9 1:50p 37.9 7:45a 22.7 0.0 0.02 2.3 12.0 12:25a WSW 12 47.0 51.3 3:15p 43.6 7:35a 18.0 0.0 0.09 3.0 8.0 11:15p ENE 13 57.4 61.4 11:30a 46.9 12:25a 7.6 0.0 1.47 5.5 23.0 9:30a SSE 14 49.8 60.0 3:05a 40.0 12:00m 15.2 0.0 0.48 7.1 27.0 2:15a SSW 15 38.7 41.0 11:15a 35.4 8:20a 26.3 0.0 0.00 6.0 22.0 8:20p ESE 16 41.0 53.1 12:20p 31.7 12:00m 24.0 0.0 0.03 9.8 33.0 2:40p WSW 17 30.0 33.5 2:50p 25.7 12:00m 35.0 0.0 0.00 10.2 26.0 5:05a W 18 24.3 30.8 2:40p 16.0 12:00m 40.7 0.0 0.00 7.8 24.0 6:00a W 19 19.4 27.9 3:20p 10.9 6:15a 45.6 0.0 0.00 4.7 20.0 1:40a W 20 40.6 50.1 1:20p 25.2 12:05a 24.4 0.0 0.00 6.3 26.0 11:50a SSW 21 42.6 47.1 12:45p 37.8 11:50p 22.4 0.0 0.71 4.2 21.0 12:15a SSW 22 36.0 39.3 12:00m 34.4 12:00p 29.0 0.0 0.01 4.7 23.0 10:20p SE 23 49.2 57.2 1:30p 37.3 12:00m 15.8 0.0 0.33 7.5 43.0 9:50p SE 24 36.8 39.4 2:00p 34.2 7:40a 28.2 0.0 0.00 5.9 38.0 12:45a W 25 32.7 36.6 12:05a 29.0 6:30a 32.3 0.0 0.00 4.5 14.0 6:40p ENE 26 36.9 39.5 10:20a 31.4 12:05a 28.1 0.0 0.11 8.3 23.0 4:50a ENE 27 34.3 36.7 1:45a 31.2 11:30p 30.7 0.0 0.00 12.8 27.0 10:35a N 28 30.7 32.2 5:00p 29.3 8:15a 34.3 0.0 0.00 19.1 43.0 5:25p ENE 29 27.7 30.9 4:15a 25.6 7:30a 37.3 0.0 0.02 5.1 16.0 1:35a W 30 27.3 28.9 1:20p 26.0 7:00a 37.7 0.0 0.07 3.8 11.0 10:00a W 31 22.9 26.5 12:05a 19.3 10:40p 42.1 0.0 0.00 6.5 19.0 12:00m W ------------------------------------------------------------------------------------- 36.8 61.4 13 10.9 19 874.2 0.0 3.48 5.9 43.0 23 W Max >= 90.0: 0 Max <= 32.0: 5 Min <= 32.0: 17 Min <= 0.0: 0 Max Rain: 1.47 ON 12/13/15 Days of Rain: 11 (>.01 in) 5 (>.1 in) 1 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration