MONTHLY CLIMATOLOGICAL SUMMARY for MAY. 2011 NAME: Hawkeye Observatory CITY: Durand STATE: Illinois ELEV: 758 ft LAT: 42° 24' 00" N LONG: 89° 18' 00" 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 50.8 59.5 12:05a 40.8 12:00m 14.2 0.0 0.00 7.8 32.0 12:00p W 2 46.6 56.3 3:35p 36.2 6:30a 18.4 0.0 0.00 6.2 24.0 1:10p WNW 3 38.4 46.7 4:00p 28.8 5:00a 26.6 0.0 0.00 3.7 17.0 5:00p N 4 45.6 61.6 3:55p 26.4 5:10a 19.4 0.0 0.00 2.1 13.0 12:40p NNE 5 51.6 63.0 12:55p 37.8 2:50a 13.4 0.0 0.00 4.9 27.0 12:10p SW 6 56.4 69.4 3:05p 41.9 3:00a 9.2 0.6 0.00 4.9 26.0 12:50p WNW 7 54.4 64.2 1:05p 45.8 12:00m 10.6 0.0 0.06 4.6 23.0 12:05p ENE 8 56.7 73.7 3:45p 36.2 6:15a 10.1 1.8 0.00 3.8 21.0 6:00p ESE 9 61.3 69.5 5:25p 49.5 4:05a 4.3 0.6 0.01 6.9 29.0 9:45a ESE 10 77.1 92.7 4:40p 63.4 6:15a 0.1 12.2 0.00 3.6 17.0 2:20p S 11 75.2 89.4 2:50p 60.9 11:55p 0.1 10.3 0.01 2.7 19.0 2:20p SSW 12 70.8 84.5 3:05p 59.2 11:40p 1.6 7.4 0.01 3.0 18.0 12:05p W 13 62.2 71.7 9:50a 55.7 12:00m 3.7 0.8 0.86 7.0 22.0 1:45p NNE 14 50.6 55.7 12:05a 48.2 8:05a 14.4 0.0 0.06 13.6 30.0 5:05p NNE 15 51.3 58.2 4:30p 43.9 12:00m 13.7 0.0 0.04 14.7 32.0 11:35a NNE 16 48.6 60.2 3:20p 36.0 11:55p 16.4 0.0 0.00 9.2 26.0 4:45p NNE 17 52.3 66.8 4:45p 34.5 5:05a 12.8 0.2 0.00 7.0 23.0 11:25a NE 18 52.7 57.3 7:10p 45.3 12:40a 12.3 0.0 0.01 4.5 14.0 8:25a NNE 19 60.7 73.0 4:50p 50.6 5:50a 5.9 1.6 0.01 2.3 12.0 4:45p NNE 20 66.6 79.5 4:10p 48.5 5:45a 3.9 5.5 0.00 3.0 15.0 4:45p ESE 21 68.6 79.9 5:40p 59.0 4:15a 1.5 5.2 0.00 3.2 17.0 2:55p S 22 71.4 85.4 3:50p 61.5 5:35a 0.7 7.1 1.29 6.3 49.0 6:50p SSW 23 68.1 77.8 3:15p 57.9 12:00m 1.2 4.3 0.01 4.6 28.0 2:10p WSW 24 60.6 71.0 3:20p 50.2 12:00m 5.4 1.0 0.10 4.5 19.0 6:45p NE 25 52.9 57.9 12:55p 50.1 12:50a 12.0 0.0 0.69 10.5 30.0 7:30p NNE 26 52.6 59.7 5:50p 44.1 12:00m 12.4 0.0 0.00 13.5 30.0 8:10a N 27 53.6 66.8 4:40p 37.4 5:40a 11.4 0.1 0.00 2.9 17.0 2:35p NE 28 60.7 68.1 4:50p 53.2 12:05a 4.8 0.5 0.00 2.8 20.0 12:35p S 29 61.2 72.1 5:35p 49.2 3:30a 5.2 1.3 0.34 2.0 30.0 1:50p NE 30 77.3 89.1 4:05p 63.0 12:55a 0.3 12.6 0.00 4.8 26.0 11:40a S 31 77.0 83.0 5:45p 69.7 12:00m 0.0 12.0 0.00 7.2 31.0 3:30p S ------------------------------------------------------------------------------------- 59.2 92.7 10 26.4 4 266.0 85.1 3.50 5.7 49.0 22 NNE Max >= 90.0: 1 Max <= 32.0: 0 Min <= 32.0: 2 Min <= 0.0: 0 Max Rain: 1.29 ON 05/22/11 Days of Rain: 8 (>.01 in) 4 (>.1 in) 1 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration