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Monthly Climatological Summary for Sep 2013
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 81.2 89.3 12:11 72.8 06:59 0.0 16.2 0.00 1.3 16.0 15:56 NNW
02 74.7 82.8 15:39 66.4 06:53 0.0 9.7 0.00 2.6 15.0 15:03 N
03 69.1 81.9 16:32 57.3 06:46 1.6 5.7 0.00 1.2 10.0 14:52 NNE
04 71.4 85.9 15:24 57.0 06:45 1.8 8.2 0.00 0.1 8.0 13:43 NE
05 73.7 87.1 15:11 60.0 05:12 0.8 9.5 0.00 0.7 9.0 13:04 ENE
06 76.6 89.5 15:49 63.5 06:46 0.1 11.7 0.00 1.2 12.0 13:45 S
07 80.1 93.6 15:56 66.1 06:13 0.0 15.1 0.00 3.5 15.0 09:55 SSW
08 78.0 86.3 16:17 70.9 09:28 0.0 13.0 0.28 3.5 14.0 10:00 S
09 84.5 97.7 15:41 73.1 01:45 0.0 19.5 0.00 2.7 16.0 14:18 SSW
10 85.5 97.0 15:09 75.1 06:44 0.0 20.5 0.00 3.2 19.0 13:29 SW
11 82.8 95.8 16:18 67.4 07:08 0.0 17.8 0.00 1.6 11.0 12:43 W
12 76.1 85.4 16:50 64.9 23:50 0.0 11.1 0.06 2.6 14.0 16:49 NNW
13 63.9 73.5 15:42 54.5 06:55 3.3 2.2 0.00 2.3 14.0 14:59 NNE
14 61.4 75.0 17:16 48.8 07:06 5.9 2.2 0.00 1.3 11.0 14:35 ENE
15 68.2 81.7 15:45 56.8 07:02 2.4 5.6 0.07 3.5 16.0 09:03 S
16 63.2 71.3 16:09 56.4 23:35 3.0 1.1 0.01 3.2 14.0 01:46 NE
17 63.1 71.2 16:22 57.1 00:00 3.1 1.2 0.04 1.1 9.0 10:46 E
18 74.5 87.8 15:48 64.1 03:46 0.1 9.6 0.14 3.3 18.0 16:02 S
19 81.1 90.2 16:30 73.4 06:47 0.0 16.1 0.00 5.5 23.0 23:47 SSW
20 67.6 75.9 00:00 56.8 23:57 0.7 3.3 0.56 2.0 16.0 00:02 W
21 60.2 70.8 16:29 51.2 06:56 5.9 1.1 0.00 2.6 16.0 14:57 NNW
22 60.3 73.1 15:34 47.2 06:54 6.8 2.1 0.00 1.1 11.0 12:50 ENE
23 62.5 76.7 15:26 49.6 06:36 5.4 3.0 0.01 1.8 16.0 11:19 ESE
24 66.2 82.8 16:51 52.0 06:08 4.1 5.4 0.53 1.8 14.0 14:20 ESE
25 70.0 80.1 17:08 63.8 03:23 0.1 5.1 0.00 1.2 9.0 12:47 ENE
26 71.0 84.8 15:56 59.9 07:07 1.1 7.1 0.01 1.3 12.0 12:25 SE
27 71.2 83.6 15:50 58.4 07:24 1.4 7.6 0.00 2.0 15.0 13:42 SSE
28 72.3 82.9 13:28 62.9 05:59 0.2 7.5 0.02 4.9 25.0 11:23 S
29 63.0 72.9 15:46 54.3 23:59 3.7 1.7 0.04 2.0 14.0 01:04 N
30 63.2 78.5 15:46 48.0 06:53 5.7 3.9 0.00 1.7 13.0 12:27 S
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71.2 97.7 9 47.2 22 57.2 243.8 1.77 2.2 25.0 28 S
Max >= 90.0 5
Max <= 32.0 0
Min <= 32.0 0
Min <= 0.0 0
Max Rain: 0.56 on day 20
Days of Rain: 12 (>= 0.01 in) 4 (>= 0.10 in) 0 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration