MONTHLY CLIMATOLOGICAL SUMMARY for MAR. 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 24.1 35.0 1:20p 12.0 5:45a 40.9 0.0 0.00 2.0 13.0 12:45p ENE 2 31.3 47.3 3:25p 13.4 3:35a 33.7 0.0 0.00 2.4 15.0 9:25a ESE 3 35.0 44.8 4:30p 23.6 12:00m 30.0 0.0 0.00 1.2 12.0 3:05p ENE 4 39.9 51.4 1:45p 23.5 12:10a 25.1 0.0 0.00 1.5 11.0 12:20p ESE 5 44.4 55.4 4:05p 37.9 5:55a 20.6 0.0 0.01 1.0 8.0 12:20p E 6 54.0 63.0 4:55p 43.9 2:45a 11.0 0.0 0.55 3.1 17.0 12:50p SW 7 47.0 60.6 3:15a 32.5 11:55p 18.0 0.0 0.08 9.2 28.0 9:05a WNW 8 46.6 61.6 5:05p 31.0 4:25a 17.7 0.0 0.00 6.3 26.0 1:25p SW 9 54.8 72.0 5:20p 41.2 12:00m 11.2 1.1 0.00 4.1 18.0 12:50a SW 10 41.6 47.3 3:50p 36.5 3:10a 23.4 0.0 0.86 5.2 23.0 6:55p NE 11 34.7 38.2 4:10p 31.0 10:45p 30.3 0.0 0.02 9.1 26.0 1:55p N 12 36.6 44.6 2:55p 28.0 6:10a 28.4 0.0 0.00 5.7 25.0 11:05p WNW 13 39.7 46.1 3:20p 27.8 11:00p 25.3 0.0 0.05 16.1 47.0 2:55a WNW 14 31.5 37.9 2:20p 24.2 3:05a 33.5 0.0 0.00 3.5 19.0 7:00p ESE 15 33.6 39.3 9:25a 25.5 11:55p 31.4 0.0 0.83 10.5 34.0 8:00p NNE 16 22.2 26.1 1:10a 15.2 12:00m 42.8 0.0 0.00 15.9 35.0 4:00a NW 17 14.6 21.4 3:35p 2.5 7:40a 50.4 0.0 0.00 4.5 14.0 6:30p NW 18 30.2 40.4 5:20p 18.9 12:05a 34.8 0.0 0.05 3.2 15.0 12:55p SSW 19 43.3 59.0 5:40p 31.0 7:40a 21.7 0.0 0.00 1.2 8.0 2:45p ESE 20 53.9 70.0 3:35p 34.5 1:40a 11.8 0.7 0.00 4.8 21.0 2:10p NNE 21 58.4 78.6 5:10p 40.0 6:35a 9.8 3.2 0.00 3.4 22.0 3:10p SW 22 45.7 67.7 12:05a 31.1 9:15p 19.4 0.1 0.00 9.4 31.0 6:20a NE 23 35.7 45.9 4:35p 25.1 7:15a 29.3 0.0 0.00 5.7 21.0 9:50a N 24 41.0 53.8 5:15p 30.2 7:00a 24.0 0.0 0.00 3.1 15.0 2:50p S 25 54.9 73.7 5:20p 37.4 4:15a 11.8 1.7 0.00 3.8 25.0 3:00p SW 26 48.2 66.0 10:45a 36.2 11:55p 16.8 0.0 0.03 8.3 33.0 9:20p NE 27 35.5 46.2 3:30p 26.8 7:30a 29.5 0.0 0.00 9.6 28.0 12:50p NNW 28 34.6 49.5 6:20p 16.0 7:10a 30.4 0.0 0.00 4.0 25.0 1:25p SW 29 51.4 64.5 2:45p 37.1 4:20a 13.6 0.0 0.00 3.8 23.0 3:40p SSW 30 60.7 81.0 5:40p 34.3 5:40a 10.2 5.9 0.00 3.8 24.0 4:50p SW 31 57.3 71.7 12:25a 38.6 11:40p 8.8 1.1 0.12 6.0 37.0 1:10p SW ------------------------------------------------------------------------------------- 41.4 81.0 30 2.5 17 745.6 13.8 2.60 5.5 47.0 13 SW Max >= 90.0: 0 Max <= 32.0: 2 Min <= 32.0: 19 Min <= 0.0: 0 Max Rain: 0.86 ON 03/10/26 Days of Rain: 9 (>.01 in) 4 (>.1 in) 0 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration