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Monthly Climatological Summary for May 2020
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 65.1 79.6 16:32 43.8 06:30 5.4 5.5 0.00 3.6 18.0 11:47 S
02 75.4 86.9 16:30 65.7 04:30 0.0 10.4 0.00 3.6 15.0 11:01 SW
03 66.0 73.1 00:00 52.8 23:58 1.5 2.4 0.00 3.3 22.0 13:00 NNE
04 57.5 69.8 11:46 46.4 05:53 8.1 0.6 0.34 2.9 31.0 16:38 E
05 55.5 66.3 17:10 48.8 06:48 9.5 0.0 0.08 5.1 26.0 15:53 NW
06 52.2 61.6 17:08 43.6 07:08 12.8 0.0 0.00 4.1 18.0 00:49 NW
07 57.9 69.1 16:23 45.4 06:21 7.7 0.6 0.11 3.2 15.0 11:53 W
08 52.2 57.8 15:41 42.8 23:56 12.8 0.0 0.24 4.5 24.0 15:45 NNW
09 51.7 63.7 17:10 36.1 06:16 13.3 0.0 0.00 2.0 15.0 12:02 WNW
10 52.2 58.8 17:00 46.9 23:58 12.8 0.0 0.00 6.3 28.0 09:15 WNW
11 49.1 57.0 16:48 39.1 05:52 15.9 0.0 0.00 3.6 17.0 12:04 WNW
12 50.8 54.4 14:05 45.2 05:48 14.2 0.0 0.00 2.2 11.0 16:48 SSW
13 52.8 57.7 23:47 49.2 04:02 12.2 0.0 0.04 3.7 16.0 17:39 SE
14 69.9 80.6 15:05 57.7 00:00 1.7 6.6 0.19 5.5 24.0 14:04 S
15 66.2 72.7 15:39 60.7 06:59 1.3 2.5 1.02 2.4 22.0 03:14 WSW
16 67.1 78.4 15:13 58.4 04:07 1.8 3.9 0.41 2.3 15.0 16:00 E
17 66.3 71.4 16:42 60.3 23:38 0.4 1.7 1.38 3.4 20.0 17:19 WNW
18 58.3 61.5 13:51 55.9 23:57 6.7 0.0 0.02 4.3 16.0 12:40 WNW
19 58.7 63.1 14:56 55.3 04:19 6.3 0.0 0.05 4.2 15.0 11:46 NNW
20 61.1 67.5 15:15 56.6 23:36 4.0 0.1 0.03 3.2 15.0 14:19 NE
21 60.8 66.9 17:08 56.0 04:24 4.3 0.1 0.00 2.1 10.0 09:05 ESE
22 68.1 77.2 13:59 59.3 02:29 1.8 4.9 0.00 2.1 14.0 13:13 SE
23 74.9 86.6 16:53 63.6 05:42 0.1 10.0 0.00 3.1 19.0 12:52 SSW
24 74.0 86.7 14:20 65.7 23:35 0.0 9.0 0.34 3.2 17.0 20:59 SSW
25 70.4 84.9 13:51 63.4 03:12 0.2 5.6 0.54 2.7 31.0 16:25 S
26 76.1 84.1 16:01 68.7 00:17 0.0 11.1 0.00 5.0 24.0 11:53 SSE
27 70.7 74.9 18:14 66.8 10:39 0.0 5.7 0.25 2.6 12.0 00:38 SSE
28 70.5 78.4 13:23 65.6 23:55 0.0 5.5 0.00 2.9 19.0 14:07 SW
29 68.5 76.3 17:04 61.0 23:58 0.7 4.1 0.06 4.0 20.0 15:23 NW
30 65.4 74.9 16:44 53.0 06:00 3.0 3.4 0.00 1.9 11.0 11:04 N
31 68.8 79.8 17:59 56.2 06:02 2.0 5.8 0.00 1.6 10.0 12:15 NNE
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63.0 86.9 2 36.1 9 160.5 99.5 5.10 3.4 31.0 4 W
Max >= 90.0 0
Max <= 32.0 0
Min <= 32.0 0
Min <= 0.0 0
Max Rain: 1.38 on day 17
Days of Rain: 16 (>= 0.01 in) 10 (>= 0.10 in) 2 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration