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Monthly Climatological Summary for Jan 2011
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 25.5 35.4 00:00 21.1 07:51 39.5 0.0 0.00 6.5 22.0 13:06 W
02 24.4 33.5 15:57 14.6 07:12 40.6 0.0 0.00 3.8 15.0 14:25 SW
03 35.4 46.9 15:15 26.7 07:18 29.6 0.0 0.00 5.1 16.0 14:17 SSW
04 28.8 35.6 15:21 22.1 23:05 36.2 0.0 0.00 3.4 16.0 12:44 WNW
05 32.5 43.0 14:36 22.3 00:38 32.5 0.0 0.00 2.8 16.0 11:22 SSW
06 29.4 32.2 18:55 26.4 07:31 35.6 0.0 0.00 3.6 19.0 09:00 W
07 30.8 34.3 10:26 23.5 23:59 34.2 0.0 0.00 5.9 29.0 22:34 WNW
08 17.1 23.5 00:00 10.5 07:44 47.9 0.0 0.00 5.6 33.0 04:34 NW
09 20.7 28.1 14:18 11.1 03:41 44.3 0.0 0.00 3.7 14.0 13:28 ESE
10 26.2 29.1 13:14 24.6 00:00 38.8 0.0 0.09 4.4 16.0 09:10 E
11 19.4 27.1 03:52 12.5 23:58 45.6 0.0 0.07 8.4 29.0 12:31 W
12 11.8 17.7 15:31 7.6 23:54 53.2 0.0 0.00 7.4 23.0 01:08 WNW
13 16.2 26.0 23:15 4.6 07:24 48.8 0.0 0.00 2.9 12.0 15:26 SSW
14 30.1 38.8 23:59 22.9 07:25 34.9 0.0 0.00 3.4 13.0 10:52 SW
15 30.3 38.8 00:00 22.0 23:49 34.7 0.0 0.00 5.4 20.0 08:37 WNW
16 22.8 26.2 14:22 19.8 07:01 42.2 0.0 0.00 2.9 11.0 00:37 NE
17 33.6 41.8 13:32 22.4 00:37 31.4 0.0 0.01 4.5 18.0 13:33 SSE
18 31.6 39.2 00:00 23.4 23:57 33.4 0.0 0.10 5.0 19.0 11:55 NW
19 22.8 26.5 14:12 20.1 07:17 42.2 0.0 0.16 4.1 14.0 02:07 NW
20 18.9 23.9 15:39 12.9 23:58 46.1 0.0 0.20 4.8 19.0 21:11 NW
21 10.2 15.5 19:59 1.2 06:31 54.8 0.0 0.00 2.3 9.0 00:02 E
22 23.2 32.6 13:51 13.9 00:25 41.8 0.0 0.00 1.8 11.0 10:03 NNW
23 22.0 29.1 23:57 18.2 08:46 43.0 0.0 0.03 4.4 15.0 07:34 E
24 27.2 35.7 14:51 22.5 23:55 37.8 0.0 0.00 2.8 16.0 15:02 W
25 26.4 36.1 16:12 20.3 01:45 38.6 0.0 0.00 1.1 10.0 17:52 NW
26 24.0 31.7 15:09 17.4 07:20 41.0 0.0 0.00 2.3 9.0 11:56 WNW
27 27.2 39.7 15:58 15.4 08:08 37.8 0.0 0.00 2.4 14.0 11:13 WSW
28 31.5 44.4 15:15 23.4 07:23 33.5 0.0 0.00 2.0 9.0 11:33 WSW
29 37.1 42.8 12:31 31.4 23:56 27.9 0.0 0.00 3.1 13.0 02:09 NW
30 30.3 37.1 14:33 26.2 05:39 34.7 0.0 0.00 3.8 14.0 13:35 NNE
31 28.0 29.2 00:01 26.7 10:17 37.0 0.0 0.37 3.3 17.0 07:47 E
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25.7 46.9 3 1.2 21 1219.6 0.0 1.03 4.0 33.0 8 WNW
Max >= 90.0 0
Max <= 32.0 13
Min <= 32.0 31
Min <= 0.0 0
Max Rain: 0.37 on day 31
Days of Rain: 8 (>= 0.01 in) 4 (>= 0.10 in) 0 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration