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Monthly Climatological Summary for Jul 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 74.8 83.2 17:40 69.7 04:58 0.0 9.8 0.88 0.9 14.0 18:06 E
02 71.6 80.1 15:40 60.5 05:48 0.4 7.0 0.00 1.2 14.0 10:55 ESE
03 72.4 81.5 16:47 61.8 05:57 0.5 7.9 0.00 0.8 10.0 10:51 NNE
04 76.6 87.6 15:29 64.9 04:23 0.0 11.6 0.00 1.7 10.0 12:22 SW
05 79.1 87.9 16:12 69.0 06:12 0.0 14.1 0.00 2.1 11.0 11:48 SSW
06 80.7 89.9 16:39 70.1 05:48 0.0 15.7 0.00 2.1 13.0 13:55 SE
07 81.0 90.0 14:39 72.6 06:20 0.0 16.0 0.00 2.8 18.0 15:37 SSW
08 77.5 84.2 16:46 72.1 23:58 0.0 12.4 0.00 2.6 15.0 14:43 NNE
09 77.9 87.6 16:03 67.0 06:17 0.0 12.9 0.78 2.3 26.0 23:57 NNW
10 72.0 81.2 17:22 66.0 00:32 0.0 7.0 2.19 3.4 31.0 00:07 NNW
11 71.8 82.6 15:27 66.9 05:12 0.0 6.8 0.54 1.3 11.0 19:05 SSE
12 71.9 78.7 17:34 67.3 06:18 0.0 6.9 0.19 2.2 16.0 14:14 WNW
13 74.0 81.7 19:14 68.9 03:34 0.0 9.0 0.00 1.3 10.0 09:41 WSW
14 79.3 89.1 16:09 67.3 06:14 0.0 14.3 0.00 3.1 15.0 17:31 SSW
15 78.7 88.2 15:54 70.2 21:24 0.0 13.7 0.54 4.0 36.0 18:51 SSW
16 73.0 80.4 18:18 68.9 04:42 0.0 8.0 1.13 1.8 11.0 01:32 ESE
17 74.6 81.9 15:54 69.5 04:22 0.0 9.6 0.00 1.6 10.0 09:26 NE
18 75.4 83.4 15:00 67.0 06:00 0.0 10.4 0.00 1.7 14.0 12:54 S
19 76.2 84.2 14:43 68.7 05:55 0.0 11.2 0.00 1.9 14.0 14:24 W
20 76.0 84.6 15:56 67.5 05:57 0.0 11.0 0.00 1.5 12.0 12:14 N
21 77.5 87.3 17:01 67.3 06:13 0.0 12.5 0.00 1.1 9.0 12:34 WSW
22 80.6 88.2 15:16 70.9 06:17 0.0 13.2 0.00 1.8 10.0 16:20 SSW
23 81.3 91.6 16:20 69.7 06:05 0.0 16.2 0.00 2.2 12.0 22:15 SSW
24 84.1 95.3 16:45 73.2 05:25 0.0 19.1 0.00 3.1 16.0 14:20 SW
25 81.0 91.0 15:20 72.0 23:55 0.0 15.9 0.00 2.1 13.0 15:15 NW
26 79.7 89.9 16:40 69.5 06:20 0.0 14.6 0.00 1.6 10.0 12:40 E
27 78.5 90.6 17:05 66.1 06:15 0.0 13.5 0.00 1.2 10.0 12:55 ESE
28 81.4 94.7 17:10 67.3 05:50 0.0 16.4 0.00 1.1 8.0 12:25 W
29 85.1 95.5 14:05 75.7 23:59 0.0 20.1 0.00 3.3 27.0 22:10 ENE
30 78.1 86.2 16:40 71.6 23:59 0.0 13.1 0.00 3.3 15.0 11:25 SE
31 70.6 75.3 16:40 65.8 23:59 0.0 5.6 0.14 2.8 15.0 08:35 ENE
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77.2 95.5 29 60.5 2 0.9 375.5 6.39 2.0 36.0 15 S
Max >= 90.0 7
Max <= 32.0 0
Min <= 32.0 0
Min <= 0.0 0
Max Rain: 2.19 on day 10
Days of Rain: 8 (>= 0.01 in) 8 (>= 0.10 in) 2 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration