Monthly Climatological Summary for Jan 2026

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  31.8  34.4   00:00  26.3   04:05  33.2   0.0  0.00   1.2   8.0   09:33     E
02  30.7  33.2   00:00  29.4   23:51  34.3   0.0  0.00   2.5  11.0   10:57    NE
03  30.9  40.7   14:55  24.5   23:50  34.1   0.0  0.00   1.8  12.0   11:49     N
04  32.6  42.6   15:07  19.7   07:31  32.3   0.0  0.00   2.6  14.0   22:48   SSE
05  46.5  60.6   14:43  28.7   05:09  18.5   0.0  0.00   3.4  16.0   18:59     S
06  54.5  67.2   14:15  40.0   23:59  10.7   0.2  0.00   5.0  19.0   14:05   WSW
07  48.8  65.8   14:26  31.5   08:01  16.2   0.0  0.00   2.8  16.0   19:53     S
08  57.2  66.5   22:24  46.9   01:16   7.9   0.1  0.24   6.5  33.0   22:05     S
09  47.2  65.0   00:00  36.9   23:45  17.9   0.0  0.00   5.3  30.0   00:38     W
10  39.8  46.7   15:13  30.6   23:57  25.1   0.0  0.04   6.7  30.0   19:11   WNW
11  30.1  38.6   15:15  23.8   07:31  34.9   0.0  0.00   5.6  24.0   04:23   WNW
12  40.0  57.3   15:13  26.5   04:04  25.0   0.0  0.00   3.8  20.0   10:01    SW
13  52.4  62.9   11:50  43.7   00:00  12.6   0.0  0.15   6.7  24.0   09:30   WSW
14  36.3  46.3   00:00  23.0   23:57  28.8   0.0  0.00   8.2  29.0   12:42    NW
15  25.4  34.2   23:52  14.8   07:41  39.6   0.0  0.00   3.9  14.0   16:15   WSW
16  36.8  44.8   12:28  25.8   23:56  28.0   0.0  0.00   7.5  29.0   21:11     W
17  19.0  25.8   00:00  13.2   23:59  46.0   0.0  0.00   7.4  26.0   17:40   WNW
18  20.6  32.4   21:14  10.5   06:29  44.4   0.0  0.00   5.6  28.0   21:23   WSW
----------------------------------------------------------------------------------
    37.8  67.2     6    10.5    18   489.6   0.3  0.43   4.8  33.0     8       W

Max >=  90.0  0
Max <=  32.0  1
Min <=  32.0 14
Min <=   0.0  0
Max Rain: 0.24 on day 8
Days of Rain: 3 (>= 0.01 in)  2 (>= 0.10 in)  0 (>= 1.00 in)
Heat Base: 65.0  Cool Base: 65.0  Method: Integration