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Monthly Climatological Summary for Dec 2024
Name: OFallon Weather City: OFallon State: MO
Elevation: 532 ft Lat: N 38° 50' 20" Lon: W 090° 43' 42"
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
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01 25.7 31.5 14:54 20.7 23:50 39.2 0.0 0.04 2.3 12.0 12:08 WNW
02 25.0 28.2 14:14 20.4 00:24 40.0 0.0 0.02 2.4 19.0 14:38 NW
03 27.6 34.1 14:54 21.0 07:01 37.4 0.0 0.04 3.1 14.0 21:28 SSW
04 43.4 55.3 14:06 29.6 00:33 21.6 0.0 0.03 8.9 34.0 20:15 W
05 20.1 31.8 00:00 13.9 23:49 44.9 0.0 0.00 5.8 26.0 03:48 NW
06 26.8 39.5 14:51 13.9 00:00 38.2 0.0 0.00 2.9 15.0 12:09 SW
07 44.0 59.1 14:15 25.0 06:30 21.0 0.0 0.00 4.7 20.0 11:36 SW
08 53.6 62.5 12:47 46.3 06:41 11.4 0.0 0.02 6.0 19.0 10:44 SW
09 48.8 54.7 14:18 38.6 23:52 16.2 0.0 0.01 3.2 18.0 02:19 W
10 36.2 41.9 14:01 28.9 23:59 28.9 0.0 0.00 4.5 21.0 14:47 WNW
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35.1 62.5 8 13.9 5 298.7 0.0 0.16 4.4 34.0 4 W
Max >= 90.0 0
Max <= 32.0 3
Min <= 32.0 8
Min <= 0.0 0
Max Rain: 0.04 on day 1
Days of Rain: 6 (>= 0.01 in) 0 (>= 0.10 in) 0 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration