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Monthly Climatological Summary for Sep 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 73.7 89.0 13:10 60.0 06:52 0.7 9.4 0.00 2.7 18.0 17:32 NNW
02 68.6 81.8 16:03 56.7 07:10 1.9 5.4 0.00 2.8 16.0 13:34 ENE
03 66.2 79.2 15:33 55.8 06:45 3.1 4.3 0.00 1.7 12.0 14:25 E
04 71.1 89.0 15:53 52.7 06:54 3.3 9.4 0.00 1.1 11.0 13:43 E
05 79.1 92.7 15:39 68.7 06:37 0.0 14.1 0.00 2.8 16.0 14:52 SW
06 71.9 82.3 14:13 61.0 23:38 0.2 7.1 0.00 3.5 18.0 14:13 NNW
07 62.1 74.6 14:45 49.6 06:49 5.5 2.5 0.00 2.8 18.0 14:07 NNE
08 58.3 76.0 16:18 42.2 06:39 9.2 2.5 0.00 1.0 10.0 13:34 ENE
09 61.7 81.2 16:29 44.0 07:04 8.1 4.8 0.00 1.0 11.0 14:55 S
10 66.0 85.4 15:58 46.8 06:35 5.8 6.8 0.00 1.5 14.0 12:28 SSE
11 71.6 90.1 14:39 54.0 06:28 3.2 9.8 0.00 1.6 20.0 14:32 SE
12 71.6 84.1 14:37 58.5 07:01 1.4 8.0 0.00 1.8 15.0 14:55 ESE
13 69.2 71.9 00:00 66.1 05:06 0.0 4.2 0.02 2.7 14.0 11:47 ESE
14 75.5 88.4 14:24 63.2 07:09 0.1 10.6 0.01 2.0 17.0 13:58 SE
15 74.2 86.6 11:54 67.3 06:42 0.0 9.2 0.00 1.6 16.0 16:20 SE
16 74.2 86.6 17:11 64.7 06:59 0.0 9.2 0.00 0.9 11.0 13:41 SSE
17 74.0 90.2 15:40 61.0 07:12 0.7 9.7 0.00 1.2 13.0 12:31 SE
18 73.9 89.9 15:19 56.7 06:16 1.9 10.8 0.00 1.4 11.0 12:58 SSE
19 76.9 91.9 14:47 59.3 06:59 0.9 12.9 0.00 2.2 17.0 12:39 SSW
20 82.3 94.8 16:04 72.1 05:44 0.0 17.3 0.00 2.2 14.0 01:18 WSW
21 79.6 89.2 14:57 71.3 05:49 0.0 14.6 0.00 1.5 14.0 12:38 W
22 73.2 80.3 15:15 68.4 23:49 0.0 8.2 1.34 2.5 21.0 02:51 WNW
23 66.4 68.4 00:00 64.5 07:08 0.1 1.4 2.58 1.4 12.0 06:21 E
24 66.0 72.9 16:35 59.3 23:52 0.7 1.6 0.40 3.2 19.0 05:20 W
25 65.2 78.8 15:57 55.3 07:02 3.3 3.5 0.01 1.0 11.0 16:55 NW
26 66.5 79.8 16:34 53.6 07:23 3.2 4.7 0.00 2.2 16.0 13:34 N
27 64.6 69.9 21:40 61.5 08:22 1.2 0.9 0.35 5.8 26.0 21:36 NNW
28 69.8 74.8 12:07 65.3 06:30 0.0 4.8 0.00 5.7 24.0 01:32 N
29 71.2 80.0 15:16 65.7 23:51 0.0 6.2 0.01 2.6 14.0 13:30 N
30 71.1 83.3 15:20 61.6 06:59 0.4 6.5 0.00 1.1 9.0 12:34 NNW
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70.5 94.8 20 42.2 8 54.8 220.4 4.72 2.2 26.0 27 N
Max >= 90.0 5
Max <= 32.0 0
Min <= 32.0 0
Min <= 0.0 0
Max Rain: 2.58 on day 23
Days of Rain: 8 (>= 0.01 in) 4 (>= 0.10 in) 2 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration