MONTHLY CLIMATOLOGICAL SUMMARY for MAY. 2021 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 65.9 86.4 3:45p 44.6 3:00a 6.8 7.7 0.00 8.2 37.0 2:15p WSW 2 72.6 85.2 3:45p 58.2 6:10a 0.7 8.4 0.00 7.4 28.0 9:20p SW 3 63.9 72.1 3:50p 56.3 12:00m 2.5 1.4 0.23 5.4 38.0 5:35p SSW 4 52.4 57.4 5:40p 43.4 11:15p 12.6 0.0 0.14 8.0 22.0 12:10a N 5 50.9 61.6 5:25p 35.4 5:35a 14.1 0.0 0.02 3.7 19.0 11:50a NNE 6 49.5 59.0 4:50p 42.3 12:00m 15.5 0.0 0.02 6.2 22.0 12:15p NE 7 47.3 56.0 2:00p 34.2 12:00m 17.7 0.0 0.00 7.0 27.0 11:45a N 8 43.6 55.4 2:00p 29.1 5:50a 21.4 0.0 0.07 2.7 15.0 7:20p NE 9 49.2 60.9 5:15p 39.6 3:00a 15.8 0.0 0.03 6.6 30.0 1:00p ENE 10 49.0 58.1 3:15p 41.3 12:00m 16.0 0.0 0.00 5.5 20.0 11:30a NE 11 45.5 58.2 4:30p 30.0 6:00a 19.5 0.0 0.00 5.0 24.0 12:45p NE 12 48.7 64.4 6:20p 29.2 5:55a 16.3 0.0 0.00 2.0 14.0 3:00p ESE 13 53.7 69.2 4:30p 33.2 5:25a 11.9 0.6 0.00 2.9 17.0 9:55a WNW 14 56.2 71.5 3:55p 33.6 5:55a 10.3 1.5 0.00 2.7 20.0 11:15a WNW 15 55.3 59.0 12:05a 53.0 7:15a 9.7 0.0 0.00 4.0 25.0 10:20a SSW 16 61.1 70.8 2:20p 53.6 5:55a 5.0 1.1 0.00 1.9 11.0 10:50a SSW 17 62.2 73.1 3:40p 51.1 4:40a 4.9 2.0 0.00 2.9 22.0 12:55p SSE 18 62.2 69.2 10:25a 53.5 1:50a 3.2 0.4 0.04 4.6 26.0 11:55p SE 19 68.8 77.6 4:20p 63.6 1:25a 0.3 4.1 0.02 5.0 19.0 12:10a S 20 73.8 82.7 5:00p 66.3 4:55a 0.0 8.8 0.00 5.0 24.0 2:00p S 21 70.0 75.4 2:15p 65.1 11:45p 0.0 5.0 0.00 3.6 19.0 2:55p SSW 22 72.9 83.8 3:10p 59.9 4:20a 0.7 8.6 0.01 3.1 17.0 3:15p W 23 72.0 80.0 5:40p 66.5 12:00m 0.0 7.0 0.00 2.7 11.0 4:05p W 24 73.1 86.4 3:45p 59.6 4:20a 1.1 9.2 0.00 2.6 15.0 1:25p W 25 74.4 82.3 1:25p 69.7 4:25a 0.0 9.4 0.00 5.4 28.0 11:50a SW 26 71.3 79.3 2:45p 57.4 12:00m 0.4 6.8 0.00 7.0 25.0 1:25p NW 27 50.1 57.4 12:05a 44.2 9:45p 14.9 0.0 0.00 8.6 34.0 11:45a E 28 45.3 47.6 7:45p 40.9 12:00m 19.7 0.0 0.00 11.0 28.0 6:05a ENE 29 51.0 66.1 5:40p 36.6 5:50a 14.1 0.1 0.00 4.4 21.0 11:30a ENE 30 54.3 70.2 3:35p 33.1 5:45a 11.6 0.8 0.00 1.4 12.0 1:25p SSW 31 61.1 72.1 5:35p 49.5 5:20a 5.7 1.8 0.00 2.6 18.0 7:25p SSW ------------------------------------------------------------------------------------- 58.9 86.4 1 29.1 8 272.4 84.7 0.58 4.8 38.0 3 SSW Max >= 90.0: 0 Max <= 32.0: 0 Min <= 32.0: 3 Min <= 0.0: 0 Max Rain: 0.23 ON 05/03/21 Days of Rain: 8 (>.01 in) 2 (>.1 in) 0 (>1 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration