Monthly Climatological Summary for May 2025

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
----------------------------------------------------------------------------------
01  66.4  74.2   18:33  61.7   06:23   0.9   2.2  0.27   4.4  20.0   12:04   WSW
02  60.8  67.0   16:38  53.3   06:28   4.3   0.1  0.08   2.8  15.0   15:27     W
03  52.3  55.5   12:36  49.2   06:05  12.7   0.0  0.37   2.7  17.0   13:40    NW
04  54.9  64.5   16:22  44.3   06:36  10.1   0.0  0.00   2.9  16.0   10:59   NNW
05  52.4  59.3   15:23  45.8   03:28  12.6   0.0  0.00   1.7  13.0   09:24     N
06  58.8  72.3   16:44  42.5   05:36   7.9   1.7  0.00   1.5  11.0   14:27    SE
07  62.8  74.1   14:05  54.6   02:55   4.2   2.1  0.01   2.1  19.0   12:59   ESE
08  62.2  71.5   16:31  57.5   05:52   3.9   1.1  0.22   2.4  15.0   14:47   NNE
09  60.3  71.8   16:02  49.1   06:18   6.3   1.5  0.00   3.0  16.0   12:46    NE
10  62.1  78.2   16:05  44.2   06:00   7.0   4.1  0.00   1.2  11.0   12:52   ENE
11  66.3  80.4   16:36  52.2   06:07   3.9   5.1  0.00   2.0  12.0   11:45     E
12  65.0  71.3   16:19  57.3   03:55   2.0   2.0  0.03   1.3  11.0   13:53     E
13  68.9  79.8   16:16  61.6   04:43   0.9   4.8  0.01   1.3  11.0   12:13     S
14  73.1  83.9   14:55  59.3   05:31   1.0   9.1  0.00   3.7  19.0   16:08   SSE
15  77.8  89.0   16:14  66.8   23:55   0.0  12.8  0.00   4.7  23.0   18:45    SW
16  72.2  85.2   13:34  57.2   06:05   0.9   8.1  0.13   5.4  30.0   14:16    SW
17  66.2  73.7   14:44  57.9   23:32   1.6   2.8  0.00   6.5  26.0   03:20   WNW
18  67.0  78.2   16:27  56.5   04:49   2.6   4.6  0.00   2.0  12.0   07:47     E
19  72.6  81.4   15:50  63.2   04:46   0.3   7.9  0.28   4.1  23.0   23:02   SSE
20  69.0  79.4   15:26  61.7   23:59   0.5   4.5  0.61   5.4  25.0   18:18   WSW
21  63.0  72.0   16:20  54.9   06:04   3.6   1.6  0.02   7.2  29.0   14:49   WNW
22  58.9  70.6   15:41  49.2   06:09   6.8   0.6  0.00   5.0  28.0   15:44    NW
23  60.3  73.5   16:35  45.2   06:05   6.8   2.2  0.00   1.5  12.0   12:02   WNW
24  63.7  72.9   14:53  52.5   05:30   3.6   2.3  0.00   2.0  15.0   14:16   SSE
25  60.3  64.3   00:00  57.3   02:25   4.7   0.0  0.00   2.1  16.0   15:46   ESE
26  62.4  69.7   15:55  54.1   03:19   3.7   1.1  0.00   3.3  18.0   09:27     E
27  64.5  73.1   16:38  58.5   06:24   2.4   1.9  0.00   2.3  15.0   23:40     N
28  64.4  75.3   16:30  57.9   05:24   3.0   2.4  0.03   2.5  13.0   10:53   WNW
29  61.1  67.4   13:12  55.1   03:25   4.3   0.3  0.28   0.8   8.0   18:34   NNW
30  66.7  78.5   16:00  54.3   06:11   3.1   4.8  0.01   4.9  19.0   12:53   WNW
31  72.0  83.5   14:54  60.7   06:17   0.7   7.7  0.00   4.4  17.0   11:37   WNW
----------------------------------------------------------------------------------
    64.1  89.0    15    42.5     6   126.1  99.3  2.35   3.1  30.0    16       W

Max >=  90.0  0
Max <=  32.0  0
Min <=  32.0  0
Min <=   0.0  0
Max Rain: 0.61 on day 20
Days of Rain: 14 (>= 0.01 in)  7 (>= 0.10 in)  0 (>= 1.00 in)
Heat Base: 65.0  Cool Base: 65.0  Method: Integration