MONTHLY CLIMATOLOGICAL SUMMARY for JAN. 2026 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 14.7 20.2 11:45p 8.0 4:50a 50.3 0.0 0.00 1.9 11.0 12:15a NW 2 18.7 20.9 3:00p 14.8 7:50a 46.3 0.0 0.00 4.7 14.0 8:50a NNW 3 22.4 25.4 3:50p 19.4 4:45a 42.6 0.0 0.00 3.2 10.0 8:25p NNW 4 26.5 32.6 9:45p 16.9 7:40a 38.5 0.0 0.00 4.0 17.0 5:30p SSE 5 32.8 41.0 2:15p 23.1 6:45a 32.2 0.0 0.00 0.9 9.0 1:30a SE 6 36.3 40.4 2:20p 32.4 12:05a 28.7 0.0 0.00 3.4 13.0 5:25p W 7 34.1 39.8 3:10p 30.0 8:40a 30.9 0.0 0.00 2.9 14.0 12:05a SE 8 45.1 58.2 11:30p 29.9 1:55a 19.9 0.0 0.37 3.5 27.0 11:20p SSE 9 39.3 58.0 12:05a 26.6 8:40p 25.7 0.0 0.03 6.8 31.0 1:55a NNW 10 31.2 35.8 1:20p 20.9 11:55p 33.8 0.0 0.04 8.4 33.0 9:10p WNW 11 26.4 30.7 1:15p 20.6 12:15a 38.6 0.0 0.00 8.7 25.0 12:05a NW 12 33.1 45.2 2:30p 25.4 1:00a 31.9 0.0 0.00 3.6 13.0 12:25a WSW 13 42.2 53.0 1:10p 33.1 12:50a 22.8 0.0 0.00 6.9 25.0 1:15p W 14 24.6 39.6 12:05a 14.7 12:00m 40.4 0.0 0.00 14.0 39.0 8:20a N 15 18.1 25.3 3:15p 8.6 7:05a 46.9 0.0 0.00 5.3 20.0 8:30p SW 16 27.9 36.5 12:55p 16.4 12:00m 37.1 0.0 0.08 8.1 27.0 7:35p W 17 13.2 16.5 12:05a 9.6 6:00a 51.8 0.0 0.00 8.4 26.0 12:50a W 18 10.1 17.1 10:55p 1.3 7:25a 54.9 0.0 0.00 5.9 24.0 11:10p W 19 1.8 13.0 12:05a -4.3 7:50a 63.2 0.0 0.00 10.8 30.0 3:45a WNW 20 7.4 17.9 12:00m -8.0 7:55a 57.4 0.0 0.00 1.4 12.0 3:40p WSW 21 21.4 25.7 7:30p 15.9 12:00m 43.6 0.0 0.00 5.0 30.0 10:50p WNW 22 11.5 18.5 12:20p -2.4 12:00m 53.5 0.0 0.00 9.6 29.0 12:45p WNW 23 -11.0 -2.4 12:05a -16.5 7:50a 76.0 0.0 0.00 7.8 24.0 12:40a NNW 24 -6.2 -1.7 2:40p -12.4 5:25a 71.2 0.0 0.00 2.8 10.0 12:20a NE 25 2.0 6.4 3:50p -3.1 10:55p 63.0 0.0 0.00 6.7 21.0 10:15a NNE 26 2.2 10.9 12:00m -7.4 7:15a 62.8 0.0 0.00 7.4 25.0 6:50p NW 27 8.9 14.5 4:55a -0.2 12:00m 56.1 0.0 0.00 8.9 27.0 9:55a NW 28 5.1 14.2 4:05p -1.7 4:35a 59.9 0.0 0.00 5.0 20.0 12:40p WNW 29 0.1 12.5 4:15p -11.3 5:00a 64.9 0.0 0.00 1.8 10.0 1:30p NW 30 7.1 15.8 3:10p -9.0 1:20a 57.9 0.0 0.00 6.6 23.0 3:30p NNE 31 11.9 21.8 4:10p -2.0 11:25p 53.1 0.0 0.00 6.2 21.0 9:10a N ------------------------------------------------------------------------------------- 18.0 58.2 8 -16.5 23 1455.9 0.0 0.52 5.8 39.0 14 NW Max >= 90.0: 0 Max <= 32.0: 20 Min <= 32.0: 29 Min <= 0.0: 12 Max Rain: 0.37 ON 01/08/26 Days of Rain: 4 (>.01 in) 1 (>.1 in) 0 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration