MONTHLY CLIMATOLOGICAL SUMMARY for DEC. 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 34.4 36.4 9:15a 33.2 8:45p 30.6 0.0 0.35 7.1 21.0 1:20p NE 2 35.5 38.0 2:15p 32.8 2:30a 29.5 0.0 0.09 2.4 11.0 2:00a NE 3 35.0 37.2 12:05a 33.0 5:00a 29.9 0.0 0.17 3.0 14.0 1:10p NW 4 35.3 38.3 2:10p 33.4 6:45a 29.7 0.0 0.00 2.8 11.0 6:55p WSW 5 34.9 37.7 12:15p 33.0 4:20a 30.1 0.0 0.10 4.8 19.0 12:10p N 6 35.4 38.7 1:45p 30.7 7:50a 29.6 0.0 0.00 5.6 23.0 8:10p SW 7 41.5 51.4 2:30p 32.1 7:40a 23.5 0.0 0.00 3.3 14.0 11:55p SW 8 49.0 55.9 3:00p 42.4 7:45p 16.0 0.0 0.04 4.9 23.0 3:50a SSW 9 40.7 48.2 12:05a 32.8 11:10p 24.3 0.0 0.36 8.5 28.0 11:05p W 10 30.9 32.9 12:05a 27.5 11:55p 34.1 0.0 0.00 7.3 19.0 12:55a WNW 11 29.6 36.0 2:45p 26.1 7:30a 35.4 0.0 0.00 2.8 12.0 11:40a SW 12 29.4 34.4 1:45p 21.5 11:00p 35.6 0.0 0.00 5.9 19.0 9:15a WNW 13 27.2 41.7 1:35p 14.6 7:10a 37.7 0.0 0.00 2.1 14.0 1:00p SW 14 34.3 50.8 2:15p 23.9 3:30a 30.7 0.0 0.00 2.1 13.0 1:20p WSW 15 37.4 50.2 2:00p 23.9 6:45a 27.6 0.0 0.00 1.3 9.0 11:40a ESE 16 41.5 43.3 8:35a 37.6 1:15a 23.5 0.0 0.18 3.7 20.0 9:10a SSE 17 38.8 43.4 12:30a 33.5 12:00m 26.2 0.0 0.01 7.1 22.0 6:50p WNW 18 25.8 34.2 1:10a 13.5 11:15p 39.2 0.0 0.00 11.7 32.0 7:55a NNW 19 23.9 33.9 2:20p 11.3 5:00a 41.1 0.0 0.00 3.3 20.0 2:50p SSW 20 32.3 42.1 12:55p 24.3 7:50a 32.7 0.0 0.00 1.2 8.0 1:25p SSE 21 36.6 41.3 2:25p 25.3 1:50a 28.4 0.0 0.00 1.3 9.0 2:30p ESE 22 41.4 44.2 11:15a 38.4 4:10a 23.6 0.0 0.33 0.6 7.0 5:15p ESE 23 43.9 47.0 3:15p 40.9 4:10a 21.1 0.0 0.01 1.1 9.0 12:15p ESE 24 50.1 52.9 8:15p 45.3 12:20a 14.9 0.0 0.00 5.0 20.0 6:00p SSE 25 52.5 56.3 11:55a 45.0 12:00m 12.5 0.0 0.48 6.6 22.0 12:10p ESE 26 36.3 45.0 12:05a 31.4 10:55p 28.7 0.0 0.02 3.2 17.0 4:00a SW 27 35.5 41.6 3:05p 30.7 7:55a 29.3 0.0 0.00 3.9 16.0 2:05p E 28 33.7 35.2 10:25p 30.7 2:40a 31.3 0.0 0.83 8.0 17.0 10:50a N 29 33.3 35.8 3:45p 26.3 10:45p 31.7 0.0 0.00 5.2 16.0 1:45a N 30 29.6 34.4 8:10p 21.7 6:00a 35.4 0.0 0.00 2.7 14.0 11:25p SW 31 31.1 32.5 12:30p 29.9 7:35a 33.8 0.0 0.00 8.8 23.0 12:00p N ------------------------------------------------------------------------------------- 36.0 56.3 25 11.3 19 897.7 0.0 2.97 4.4 32.0 18 ESE Max >= 90.0: 0 Max <= 32.0: 0 Min <= 32.0: 17 Min <= 0.0: 0 Max Rain: 0.83 ON 12/28/23 Days of Rain: 11 (>.01 in) 7 (>.1 in) 0 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration