MONTHLY CLIMATOLOGICAL SUMMARY for SEP. 2017 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 58.2 71.8 4:00p 44.7 12:00m 8.3 1.5 0.00 1.8 18.0 11:40a ENE 2 56.2 70.9 2:15p 40.3 5:15a 9.6 0.8 0.12 0.8 16.0 1:40p SSW 3 65.9 82.0 4:05p 47.8 6:30a 5.0 5.9 0.00 1.4 14.0 2:35p SSW 4 68.2 76.2 2:35p 57.3 10:45p 1.0 4.2 0.00 3.8 19.0 10:45a NW 5 56.7 65.6 1:30p 47.6 11:05p 8.4 0.0 0.00 5.4 24.0 3:20p WNW 6 52.7 63.0 3:05p 43.7 5:55a 12.3 0.0 0.00 3.8 15.0 11:30a NW 7 57.0 68.5 3:15p 45.3 2:15a 8.4 0.5 0.00 1.8 16.0 3:25p W 8 57.8 70.2 1:05p 46.0 6:40a 7.9 0.7 0.00 2.3 19.0 4:10p ENE 9 59.8 74.3 3:10p 47.7 7:15a 7.7 2.5 0.00 1.2 16.0 11:45a ESE 10 56.7 73.1 4:15p 40.7 6:45a 10.3 2.0 0.00 1.1 13.0 10:45a SE 11 56.8 76.9 5:25p 40.1 5:55a 11.1 3.0 0.00 0.2 8.0 2:25p SE 12 61.9 82.1 4:15p 44.1 6:20a 8.4 5.2 0.00 0.8 12.0 1:05p ENE 13 61.2 83.6 4:00p 42.0 6:40a 9.0 5.2 0.00 0.7 12.0 12:20p ENE 14 66.0 83.8 4:20p 49.7 2:45a 4.4 5.5 0.00 0.9 14.0 2:45p SSW 15 71.4 87.7 2:45p 58.0 6:50a 1.8 8.2 0.00 1.6 17.0 3:05p S 16 73.8 87.6 4:00p 60.6 5:35a 0.7 9.5 0.00 1.6 17.0 12:50p S 17 65.7 72.2 10:05a 48.7 12:00m 2.3 3.0 0.00 2.1 14.0 11:10a NW 18 62.5 81.2 3:30p 44.4 7:05a 7.1 4.5 0.00 0.6 13.0 1:20p ENE 19 69.0 82.6 4:20p 57.7 7:10a 1.7 5.7 0.02 0.8 13.0 1:30p SE 20 76.8 92.0 3:35p 59.9 3:30a 1.0 12.7 0.00 2.5 23.0 2:55p S 21 75.3 87.5 3:10p 64.5 12:00m 0.0 10.3 0.00 0.4 11.0 2:00p SSE 22 75.7 93.4 3:55p 60.8 4:50a 0.8 11.5 0.00 1.5 18.0 1:05p SSW 23 75.4 94.0 2:15p 61.1 6:25a 0.7 11.2 0.00 0.4 11.0 12:15p SSW 24 73.5 90.6 3:15p 58.1 6:40a 1.5 10.0 0.00 1.5 18.0 12:55p SSW 25 72.8 92.9 3:40p 56.1 7:10a 2.3 10.1 0.00 0.6 14.0 3:40p S 26 72.1 87.5 1:10p 62.7 3:35a 0.3 7.3 0.00 3.5 17.0 1:20p WNW 27 58.9 68.1 12:40p 43.8 12:00m 6.3 0.2 0.00 4.5 18.0 12:15p NNW 28 56.2 73.9 5:00p 37.5 7:20a 10.7 1.9 0.00 1.5 15.0 11:25a W 29 57.5 68.4 3:55p 41.0 12:00m 7.8 0.4 0.02 3.9 25.0 12:15p NNW 30 53.1 70.8 3:50p 36.6 6:50a 12.9 1.0 0.00 1.1 16.0 12:05p ESE ------------------------------------------------------------------------------------- 64.2 94.0 23 36.6 30 169.7 144.5 0.16 1.8 25.0 29 SSW Max >= 90.0: 5 Max <= 32.0: 0 Min <= 32.0: 0 Min <= 0.0: 0 Max Rain: 0.12 ON 09/02/17 Days of Rain: 3 (>.01 in) 1 (>.1 in) 0 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration