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Monthly Climatological Summary for Jan 2018
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 0.2 8.3 15:00 -7.9 07:22 64.7 0.0 0.00 3.2 14.0 05:17 NW
02 7.4 19.2 15:58 -4.1 06:47 57.6 0.0 0.00 1.9 11.0 21:27 SW
03 19.0 25.4 13:17 8.3 23:55 46.0 0.0 0.00 6.1 21.0 15:15 WNW
04 10.6 17.6 15:49 1.7 07:03 54.4 0.0 0.00 2.4 13.0 00:25 NW
05 14.9 20.6 15:47 9.0 23:55 50.1 0.0 0.00 1.3 9.0 16:00 NE
06 12.7 21.3 16:13 1.0 07:25 52.3 0.0 0.00 3.5 14.0 14:57 SE
07 30.7 40.4 13:42 19.7 00:00 34.3 0.0 0.36 4.5 15.0 12:25 SSE
08 34.8 36.2 05:25 31.0 23:49 30.2 0.0 0.00 0.8 10.0 09:48 WNW
09 33.5 37.7 23:37 30.0 05:57 31.5 0.0 0.00 2.4 12.0 12:06 SE
10 50.8 59.2 15:55 37.6 00:00 14.2 0.0 0.01 7.1 25.0 17:09 S
11 46.4 62.1 11:02 16.1 23:55 18.6 0.0 0.09 7.3 30.0 14:47 W
12 14.5 17.6 15:26 10.8 08:46 50.5 0.0 0.00 8.0 23.0 00:41 NNW
13 16.5 21.6 15:02 11.4 04:40 48.5 0.0 0.00 2.9 20.0 00:02 NNW
14 21.7 26.0 23:57 14.8 01:46 43.3 0.0 0.00 4.8 18.0 20:46 S
15 17.7 29.7 07:04 4.2 23:58 47.3 0.0 0.00 7.4 26.0 09:47 WNW
16 4.3 9.3 21:12 -1.6 07:03 60.7 0.0 0.00 5.0 19.0 13:48 WNW
17 13.3 24.5 14:40 1.3 07:20 51.7 0.0 0.00 1.6 12.0 14:51 WSW
18 31.0 45.5 15:49 18.2 02:00 34.0 0.0 0.00 5.3 20.0 11:24 SW
19 43.0 55.4 15:28 32.2 07:18 22.0 0.0 0.00 6.3 22.0 09:26 SW
20 45.9 59.8 15:40 38.8 05:40 19.1 0.0 0.00 3.2 13.0 10:12 SSW
21 55.5 70.1 13:29 39.3 02:42 10.2 0.7 0.00 5.3 22.0 13:16 S
22 50.3 58.6 11:51 34.5 23:56 14.7 0.0 0.85 8.5 29.0 14:44 SW
23 34.5 35.7 14:23 31.6 23:59 30.5 0.0 0.01 7.8 25.0 07:54 WNW
24 32.0 41.0 16:21 26.1 06:19 32.9 0.0 0.00 1.8 13.0 13:41 WNW
25 46.9 65.3 15:26 26.9 04:28 18.1 0.0 0.00 4.1 24.0 09:56 SSW
26 52.3 59.7 15:19 42.8 05:01 12.7 0.0 0.00 7.8 30.0 12:15 SSW
27 48.8 55.2 00:00 37.2 23:33 16.2 0.0 0.00 3.2 18.0 09:22 W
28 40.8 53.7 14:14 29.4 05:45 24.2 0.0 0.00 2.1 17.0 22:22 N
29 27.5 32.4 00:00 21.0 23:54 37.5 0.0 0.00 4.7 18.0 14:05 NW
30 28.4 38.8 15:38 15.8 07:17 36.6 0.0 0.00 4.4 22.0 18:53 S
31 45.1 56.7 14:53 35.2 00:21 19.9 0.0 0.00 4.7 22.0 11:43 SW
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30.0 70.1 21 -7.9 1 1084.5 0.7 1.32 4.5 30.0 11 WSW
Max >= 90.0 0
Max <= 32.0 12
Min <= 32.0 23
Min <= 0.0 3
Max Rain: 0.85 on day 22
Days of Rain: 5 (>= 0.01 in) 2 (>= 0.10 in) 0 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration