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Annual Climatological Summary for 2023
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
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23 1 46.0 29.1 37.5 0.0 853 1 69.4 3 9.6 31 0 3 21 0
23 2 52.5 30.1 41.5 0.0 659 1 71.2 22 10.5 3 0 1 14 0
23 3 52.5 33.6 42.9 0.0 577 2 73.2 6 17.6 19 0 0 11 0
23 4
23 5
23 6
23 7
23 8
23 9
23 10
23 11
23 12
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50.1 30.8 40.5 0.0 2088 3 73.2 Mar 9.6 Jan 0 4 46 0
Precipitation (in)
Dep. Max Days of Rain
From Obs. >=
YR MO Total Norm Day Date 0.01 0.10 1.00
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23 1 2.40 0.0 0.78 18 8 5 0
23 2 2.41 0.0 0.51 8 9 6 0
23 3 5.33 0.0 1.86 3 14 7 2
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10.14 0.0 1.86 Mar 31 18 2
Wind Speed (mph)
Dom
YR MO Avg. Hi Date Dir
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23 1 4.3 29.0 15 W
23 2 4.8 41.0 9 SW
23 3 5.2 34.0 16 WSW
23 4
23 5
23 6
23 7
23 8
23 9
23 10
23 11
23 12
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4.7 41.0 Feb WSW