MONTHLY CLIMATOLOGICAL SUMMARY for SEP. 2023 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 64.1 83.5 4:35p 42.4 6:40a 6.8 5.9 0.00 2.0 15.0 2:40p SSW 2 71.5 89.0 3:55p 51.3 6:20a 2.8 9.4 0.00 2.5 20.0 5:20p SSW 3 77.5 93.3 3:45p 60.0 6:40a 0.3 12.8 0.00 3.1 22.0 2:10p SSW 4 78.3 93.0 3:25p 61.7 6:35a 0.4 13.7 0.00 2.9 19.0 3:05p SSW 5 79.0 89.9 4:30p 70.7 7:00a 0.0 14.0 0.00 4.4 19.0 10:25a S 6 72.7 77.1 3:55p 67.1 11:55p 0.0 7.7 0.01 4.8 20.0 5:05p W 7 65.2 70.0 3:10p 62.5 7:40a 0.8 1.0 0.03 4.4 16.0 1:25a NNE 8 63.2 67.7 3:25p 58.6 12:00m 2.2 0.4 0.00 2.7 12.0 3:25p NNE 9 61.4 79.0 4:35p 47.2 6:30a 7.2 3.6 0.00 1.1 13.0 11:25a ENE 10 66.8 82.2 2:10p 50.1 1:40a 4.1 6.0 0.00 2.7 13.0 1:35p NNW 11 60.9 65.3 12:05a 51.8 12:00m 4.1 0.0 0.38 2.9 15.0 4:50a NNE 12 59.7 72.4 4:05p 51.2 12:25a 6.4 1.2 0.04 3.0 15.0 12:15p NNE 13 55.6 69.1 4:25p 44.4 11:40p 9.7 0.3 0.00 2.4 13.0 10:10a NNE 14 55.7 75.5 4:30p 38.4 5:05a 11.8 2.4 0.01 0.9 11.0 2:40p SE 15 60.2 78.9 3:05p 39.9 6:50a 8.9 4.1 0.00 1.6 13.0 1:50p SSW 16 64.6 76.1 3:55p 57.3 7:00a 3.2 2.8 0.24 1.7 15.0 7:05p SSE 17 60.6 71.6 3:25p 48.6 12:00m 5.6 1.2 0.03 3.2 18.0 12:30p NE 18 58.5 74.5 5:50p 44.1 6:55a 8.7 2.2 0.00 0.8 8.0 2:45p ENE 19 60.5 71.9 3:40p 55.9 1:15a 5.2 0.7 0.21 1.9 18.0 3:45p SSE 20 67.7 79.4 4:20p 56.8 3:55a 1.7 4.4 0.00 1.6 13.0 6:40a SSE 21 64.5 75.3 2:45p 56.8 2:35a 2.4 1.9 0.03 1.1 14.0 3:50p E 22 67.8 76.1 1:05p 63.5 12:10a 0.2 3.0 0.05 2.8 21.0 9:55a SSE 23 70.5 82.4 3:00p 63.2 3:10a 0.2 5.8 0.03 3.3 18.0 12:50p SE 24 68.4 80.8 3:30p 59.8 5:50a 1.3 4.7 0.00 3.2 19.0 11:30a SE 25 67.3 77.6 2:50p 61.2 3:20a 1.1 3.4 0.09 2.5 17.0 12:05p SE 26 65.6 73.5 3:10p 61.3 4:15a 1.1 1.6 0.83 2.9 17.0 10:45a ENE 27 63.8 68.9 1:40p 58.7 9:45p 1.7 0.5 0.17 1.7 13.0 6:10p ENE 28 63.6 71.2 3:15p 54.7 11:45p 2.8 1.4 0.01 2.1 12.0 12:10p ENE 29 63.1 77.4 3:50p 52.7 12:45a 4.9 3.0 0.01 1.7 13.0 1:25p E 30 70.9 86.9 3:55p 57.2 7:00a 1.8 7.7 0.00 2.2 14.0 2:25p SSE ------------------------------------------------------------------------------------- 65.6 93.3 3 38.4 14 107.4 126.8 2.17 2.5 22.0 3 SSE Max >= 90.0: 2 Max <= 32.0: 0 Min <= 32.0: 0 Min <= 0.0: 0 Max Rain: 0.83 ON 09/26/23 Days of Rain: 12 (>.01 in) 5 (>.1 in) 0 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration