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Report for 2021
 Annual Climatological Summary for 2021 Name: ofallonweather.com City: O'Fallon State: MO Elevation: 550 ft Lat: N 38° 50' 20" Lon: W 090° 43' 43" 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 ------------------------------------------------------------------------------------ 21 1 39.7 29.3 34.3 3.0 762 0 54.0 21 17.8 23 0 3 18 0 21 2 21 3 21 4 21 5 21 6 21 7 21 8 21 9 21 10 21 11 21 12 ------------------------------------------------------------------------------------ 39.7 29.3 34.3 3.0 762 0 54.0 Jan 17.8 Jan 0 3 18 0 Precipitation (in) Dep. Max Days of Rain From Obs. >= YR MO Total Norm Day Date 0.01 0.10 1.00 --------------------------------------------- 21 1 1.60 -0.60 0.83 25 8 3 0 21 2 21 3 21 4 21 5 21 6 21 7 21 8 21 9 21 10 21 11 21 12 --------------------------------------------- 1.60 -0.60 0.83 Jan 8 3 0 Wind Speed (mph) Dom YR MO Avg. Hi Date Dir ------------------------------ 21 1 4.0 27.0 14 W 21 2 21 3 21 4 21 5 21 6 21 7 21 8 21 9 21 10 21 11 21 12 ------------------------------ 4.0 27.0 Jan W
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