MONTHLY CLIMATOLOGICAL SUMMARY for SEP. 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 78.5 92.7 4:10p 62.5 5:40a 0.3 13.8 0.00 2.1 13.0 1:45p SSW 2 81.7 89.6 5:20p 72.4 11:50p 0.0 16.7 0.00 2.7 17.0 12:50a SSW 3 70.1 76.4 9:55a 67.5 10:35p 0.0 5.1 1.02 1.9 15.0 4:35a W 4 63.0 69.1 4:10p 54.2 12:00m 2.9 1.0 0.00 4.2 19.0 9:55a NNW 5 55.3 64.7 4:05p 45.6 12:00m 9.7 0.0 0.00 5.9 23.0 10:50a NNE 6 54.1 69.2 4:30p 39.6 5:55a 11.5 0.6 0.00 3.0 15.0 10:15a NE 7 56.6 72.5 4:10p 41.1 4:05a 10.0 1.6 0.01 4.2 18.0 10:35a NNE 8 62.4 77.4 3:50p 44.8 5:40a 6.3 3.7 0.00 5.7 23.0 12:50p NNE 9 64.3 76.2 5:40p 53.3 3:05a 3.8 3.2 0.00 3.5 17.0 2:05p ENE 10 67.1 82.9 6:20p 55.5 7:20a 3.3 5.5 0.00 1.0 12.0 2:30p ENE 11 67.2 82.6 4:10p 52.1 6:45a 3.9 6.1 0.00 1.5 13.0 1:00p W 12 71.6 83.6 3:50p 57.5 6:35a 1.6 8.2 0.00 3.0 19.0 2:00p W 13 63.3 71.7 4:40p 48.6 11:55p 3.5 1.7 0.00 3.2 21.0 9:10a NNW 14 49.9 60.6 3:50p 35.9 11:50p 15.1 0.0 0.00 3.2 18.0 2:45p NNW 15 46.4 60.9 5:20p 34.7 1:35a 18.6 0.0 0.00 3.0 18.0 10:55a NNW 16 49.4 56.8 1:40p 41.3 3:05a 15.6 0.0 0.00 0.8 8.0 2:00p NE 17 56.9 69.7 3:40p 40.4 7:15a 8.9 0.7 0.00 2.2 17.0 12:00p SE 18 58.6 60.2 2:30a 55.3 7:45a 6.4 0.0 0.33 2.4 14.0 12:15p SE 19 61.9 73.3 4:55p 48.5 12:00m 4.7 1.6 0.07 2.0 14.0 11:35a NNW 20 61.5 76.2 4:00p 44.0 5:50a 7.1 3.5 0.00 3.7 20.0 11:00a S 21 60.4 65.9 12:10a 52.8 7:25a 4.6 0.0 0.00 4.9 24.0 1:55p W 22 55.1 62.0 3:20p 47.0 12:00m 9.9 0.0 0.00 2.8 13.0 11:00a W 23 46.6 56.1 1:35p 36.2 7:00a 18.4 0.0 0.00 1.1 10.0 3:20p NNW 24 50.0 63.7 2:30p 40.0 5:25a 15.0 0.0 0.00 2.3 16.0 2:30p NE 25 52.0 63.8 5:05p 40.9 3:10a 13.0 0.0 0.22 2.0 13.0 3:05p W 26 52.5 56.1 11:10a 45.2 12:05a 12.5 0.0 1.34 5.7 35.0 3:55p W 27 55.4 64.0 1:50p 47.4 11:50p 9.6 0.0 0.10 6.2 19.0 7:35a NNE 28 56.9 70.5 3:30p 48.8 10:35p 8.7 0.7 0.01 2.6 16.0 12:35p NNW 29 54.6 71.3 2:50p 44.2 5:25a 10.8 0.4 0.10 4.9 33.0 4:35p W 30 51.8 62.0 4:05p 40.3 10:45p 13.2 0.0 0.00 8.1 28.0 12:05a NNW ------------------------------------------------------------------------------------- 59.2 92.7 1 34.7 15 248.9 74.1 3.20 3.3 35.0 26 NNW Max >= 90.0: 1 Max <= 32.0: 0 Min <= 32.0: 0 Min <= 0.0: 0 Max Rain: 1.34 ON 09/26/11 Days of Rain: 7 (>.01 in) 4 (>.1 in) 2 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration