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Report for 2018
 Annual Climatological Summary for 2018 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 ------------------------------------------------------------------------------------ 18 1 30.4 12.3 22.3 -9.0 811 0 62.1 11 -7.9 1 0 12 17 3 18 2 18 3 18 4 18 5 18 6 18 7 18 8 18 9 18 10 18 11 18 12 ------------------------------------------------------------------------------------ 30.4 12.3 22.3 -9.0 811 0 62.1 Jan -7.9 Jan 0 12 17 3 Precipitation (in) Dep. Max Days of Rain From Obs. >= YR MO Total Norm Day Date 0.01 0.10 1.00 --------------------------------------------- 18 1 0.46 -1.74 0.36 7 3 1 0 18 2 18 3 18 4 18 5 18 6 18 7 18 8 18 9 18 10 18 11 18 12 --------------------------------------------- 0.46 -1.74 0.36 Jan 3 1 0 Wind Speed (mph) Dom YR MO Avg. Hi Date Dir ------------------------------ 18 1 4.3 30.0 11 WSW 18 2 18 3 18 4 18 5 18 6 18 7 18 8 18 9 18 10 18 11 18 12 ------------------------------ 4.3 30.0 Jan WSW
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