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Annual Climatological Summary for 2024
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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24 1 35.7 21.6 28.9 0.0 1119 0 56.3 29 -9.5 14 0 7 22 5
24 2 57.2 31.1 44.4 0.0 610 14 82.6 27 11.6 17 0 1 15 0
24 3 63.1 39.7 51.0 0.0 460 29 79.7 31 24.9 18 0 0 7 0
24 4 69.8 48.3 59.0 0.0 256 75 87.6 14 32.4 21 0 0 0 0
24 5 77.7 56.9 67.2 0.0 16 34 84.6 2 50.7 5 0 0 0 0
24 6
24 7
24 8
24 9
24 10
24 11
24 12
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57.7 36.5 47.1 0.0 2461 151 87.6 Apr -9.5 Jan 0 8 44 5
Precipitation (in)
Dep. Max Days of Rain
From Obs. >=
YR MO Total Norm Day Date 0.01 0.10 1.00
---------------------------------------------
24 1 4.16 0.0 0.81 25 14 9 0
24 2 0.30 0.0 0.25 18 2 1 0
24 3 3.51 0.0 1.40 25 9 5 2
24 4 5.41 0.0 1.32 1 13 8 2
24 5 2.40 0.0 0.71 7 6 5 0
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15.78 0.0 1.40 Mar 44 28 4
Wind Speed (mph)
Dom
YR MO Avg. Hi Date Dir
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24 1 4.5 37.0 12 W
24 2 4.3 35.0 27 WSW
24 3 5.3 42.0 14 SW
24 4 5.0 37.0 17 SW
24 5 3.0 28.0 2 S
24 6
24 7
24 8
24 9
24 10
24 11
24 12
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4.7 42.0 Mar WSW