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Monthly Climatological Summary for May 2016
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 59.8 68.3 16:05 52.6 23:58 5.7 0.5 0.01 3.0 20.0 17:16 NW
02 52.4 55.2 16:29 49.6 06:30 12.6 0.0 0.01 2.7 14.0 05:02 NW
03 56.5 64.7 18:05 49.7 06:43 8.5 0.0 0.00 2.8 17.0 13:11 NW
04 59.6 66.4 14:39 53.0 23:07 5.5 0.1 0.00 6.1 24.0 14:53 NNW
05 55.5 66.8 17:51 43.5 06:06 9.6 0.1 0.00 3.3 18.0 10:41 N
06 63.8 79.7 17:00 44.3 05:27 6.0 4.8 0.00 2.8 12.0 09:57 W
07 70.1 86.0 15:39 62.3 04:05 0.6 5.7 0.06 4.4 34.0 16:18 W
08 65.9 73.7 14:26 58.9 07:07 1.7 2.6 0.01 3.2 16.0 18:30 E
09 65.6 71.1 12:39 62.2 23:59 0.5 1.1 0.18 4.3 22.0 23:16 S
10 67.7 81.0 18:29 59.0 05:41 2.0 4.7 0.06 3.4 17.0 00:25 SW
11 66.9 78.1 12:14 61.5 03:55 0.9 2.8 1.30 2.2 20.0 19:45 S
12 64.3 70.6 14:18 55.5 23:56 2.0 1.3 0.01 4.0 26.0 17:09 WNW
13 63.4 77.4 16:52 48.3 05:50 5.4 3.9 0.26 4.3 29.0 22:59 W
14 50.0 57.9 17:32 43.3 06:19 15.0 0.0 0.00 5.5 23.0 00:01 NW
15 53.8 64.7 17:18 41.7 05:26 11.2 0.0 0.00 2.4 13.0 08:45 NW
16 52.5 55.7 01:01 48.6 23:53 12.5 0.0 0.39 3.8 19.0 09:08 S
17 50.0 53.0 18:42 47.6 03:11 15.0 0.0 0.50 3.2 15.0 11:17 E
18 56.0 66.9 18:18 46.0 05:45 9.1 0.1 0.01 2.1 17.0 13:48 NE
19 58.4 70.4 14:28 43.4 05:48 7.8 1.2 0.00 1.3 11.0 12:08 SE
20 61.6 69.8 17:17 54.8 06:57 4.4 1.0 0.03 2.2 13.0 14:51 NE
21 64.0 75.4 16:29 51.3 05:50 4.3 3.3 0.00 2.5 14.0 12:13 N
22 67.7 82.2 17:03 50.0 06:02 3.4 6.1 0.00 1.6 11.0 13:24 N
23 70.6 82.6 14:57 53.1 05:27 2.0 7.6 0.00 3.3 18.0 14:29 SSW
24 70.4 81.7 13:05 62.6 02:44 0.3 5.8 0.00 2.9 17.0 14:30 SSW
25 71.4 81.8 16:45 61.0 05:10 0.9 7.3 0.01 4.1 19.0 11:32 SSW
26 73.6 82.2 15:45 64.8 08:06 0.0 8.6 1.27 5.2 31.0 06:35 SSW
27 70.4 78.5 15:53 66.7 02:03 0.0 5.4 0.35 5.4 21.0 11:05 S
28 74.4 84.1 17:01 66.2 04:31 0.0 9.4 0.02 5.4 21.0 16:29 SSW
29 75.6 85.7 16:12 64.4 05:44 0.0 10.6 0.00 2.5 13.0 11:19 W
30 74.3 88.7 15:35 62.8 05:55 0.1 9.4 0.03 2.1 29.0 16:50 WSW
31 73.4 83.1 17:36 65.5 05:38 0.0 8.4 0.02 1.7 13.0 22:41 S
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63.9 88.7 30 41.7 15 147.0 111.8 4.53 3.3 34.0 7 WSW
Max >= 90.0 0
Max <= 32.0 0
Min <= 32.0 0
Min <= 0.0 0
Max Rain: 1.30 on day 11
Days of Rain: 19 (>= 0.01 in) 7 (>= 0.10 in) 2 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration