V/Λ SELECT: Month and Year
OR > Month
V/Λ2025 >
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Annual Climatological Summary for 2025
Name: OFallon Weather City: OFallon State: MO
Elevation: 532 ft Lat: N 38° 50' 20" Lon: W 090° 43' 42"
Temperature (°F), Heat Base: 65.0 Cool Base: 65.0
Dep. Heat Cool Max Max Min Min
Mean Mean From Deg Deg >= <= <= <=
YR MO Max Min Mean Norm Days Days Hi Date Low Date 90.0 32.0 32.0 0.0
------------------------------------------------------------------------------------
25 1 34.3 18.3 26.3 0.0 734 0 56.6 17 4.6 19 0 8 19 0
25 2
25 3
25 4
25 5
25 6
25 7
25 8
25 9
25 10
25 11
25 12
------------------------------------------------------------------------------------
34.3 18.3 26.3 0.0 734 0 56.6 Jan 4.6 Jan 0 8 19 0
Precipitation (in)
Dep. Max Days of Rain
From Obs. >=
YR MO Total Norm Day Date 0.01 0.10 1.00
---------------------------------------------
25 1 0.68 0.0 0.23 11 6 3 0
---------------------------------------------
0.68 0.0 0.23 Jan 6 3 0
Wind Speed (mph)
Dom
YR MO Avg. Hi Date Dir
------------------------------
25 1 4.8 25.0 1 WNW
25 2
25 3
25 4
25 5
25 6
25 7
25 8
25 9
25 10
25 11
25 12
------------------------------
4.8 25.0 Jan WNW