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Monthly Climatological Summary for Jun 2021
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 70.3 13:25 59.3 05:27 1.7 1.8 0.00 1.5 9.0 18:06 SE
02 65.5 72.5 18:17 60.9 06:06 1.7 2.2 0.02 1.9 11.0 14:07 WSW
03 72.3 82.8 17:32 62.9 06:15 0.3 7.6 0.00 2.2 10.0 10:19 SW
04 74.4 85.0 16:10 59.4 05:57 0.5 9.9 0.00 2.6 13.0 12:05 SSW
05 77.0 86.6 15:23 67.3 05:55 0.0 12.0 0.00 3.9 13.0 09:21 SSW
06 76.3 83.8 16:16 70.1 04:50 0.0 11.3 0.04 3.5 16.0 14:32 S
07 74.9 84.4 15:54 71.0 06:56 0.0 9.9 0.06 2.8 20.0 16:11 SSE
08 73.4 80.0 16:03 67.1 04:14 0.0 8.3 0.00 1.4 14.0 16:31 S
09 76.4 85.1 18:57 68.7 03:52 0.0 11.4 0.00 1.2 10.0 15:35 E
10 80.9 91.2 16:31 70.4 05:51 0.0 15.9 0.00 1.5 10.0 12:24 SW
11 83.4 93.9 17:06 71.3 04:53 0.0 18.4 0.00 1.1 8.0 12:54 S
12 83.0 92.5 16:24 74.3 05:26 0.0 18.0 0.00 2.5 12.0 12:42 WNW
13 79.3 89.2 16:46 68.4 06:15 0.0 14.3 0.00 2.5 12.0 10:21 NNW
14 80.1 93.3 14:13 66.7 02:28 0.0 15.1 0.00 3.0 16.0 10:44 NNE
15 76.9 88.9 17:04 61.0 05:52 0.5 12.4 0.00 1.3 10.0 12:48 NE
16 76.1 88.1 18:14 64.7 05:56 0.0 11.1 0.00 1.7 10.0 07:50 ENE
17 81.2 94.8 16:31 65.0 03:42 0.0 16.2 0.00 2.5 14.0 12:31 SSW
18 87.7 97.9 16:52 78.7 04:47 0.0 22.7 0.00 4.5 17.0 10:20 SSW
19 81.0 91.1 15:14 71.0 22:16 0.0 12.6 0.04 4.7 28.0 16:28 SW
20 80.4 91.0 15:53 69.8 23:48 0.0 15.4 0.07 4.6 25.0 22:42 SW
21 67.3 71.8 17:09 57.4 23:59 0.6 2.8 0.25 4.6 20.0 00:04 W
22 67.2 78.3 17:07 53.1 05:18 3.3 5.5 0.00 3.1 15.0 18:49 SSW
23 73.8 83.7 16:23 63.0 05:41 0.2 9.0 0.00 5.7 21.0 15:19 S
24 75.0 79.0 23:19 67.5 05:52 0.0 10.0 0.11 3.3 16.0 01:01 S
25 76.6 87.8 17:27 69.5 05:42 0.0 11.6 4.19 4.1 25.0 01:48 SW
26 78.0 86.1 12:49 70.8 00:01 0.0 13.0 0.54 5.6 26.0 14:18 S
27 76.8 86.6 13:35 72.1 23:25 0.0 11.8 1.45 2.8 26.0 18:08 SSW
28 77.0 84.7 18:03 71.7 05:02 0.0 12.0 0.06 1.6 15.0 12:23 SW
29 77.3 89.9 15:10 71.6 23:19 0.0 12.3 0.04 1.7 27.0 15:38 NW
30 74.2 80.9 17:58 70.7 22:03 0.0 9.2 1.53 1.0 19.0 20:09 WSW
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76.3 97.9 18 53.1 22 8.8 343.7 8.40 2.8 28.0 19 SSW
Max >= 90.0 8
Max <= 32.0 0
Min <= 32.0 0
Min <= 0.0 0
Max Rain: 4.19 on day 25
Days of Rain: 13 (>= 0.01 in) 6 (>= 0.10 in) 3 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration