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August Normals for Clayton, MO

< July September > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 66 89 78 0.11 0 13 2 66 89 78 0.11 0 13 3 66 89 77 0.11 0 13 4 66 89 77 0.11 0 12 5 66 89 77 0.11 0 12 6 66 88 77 0.11 0 12 7 65 88 77 0.1 0 12 8 65 88 77 0.1 0 12 9 65 88 77 0.1 0 12 10 65 88 77 0.1 0 12 11 65 88 76 0.1 0 12 12 65 88 76 0.1 0 11 13 65 88 76 0.1 0 11 14 64 87 76 0.1 0 11 15 64 87 76 0.1 0 11 16 64 87 76 0.1 0 11 17 64 87 75 0.09 0 11 18 64 87 75 0.09 0 10 19 63 87 75 0.09 0 10 20 63 87 75 0.09 0 10 21 63 86 75 0.09 0 10 22 63 86 74 0.09 0 10 23 62 86 74 0.09 0 10 24 62 86 74 0.09 -- 9 25 62 86 74 0.09 -- 9 26 62 85 74 0.09 -- 9 27 61 85 73 0.09 -- 9 28 61 85 73 0.09 -- 8 29 61 85 73 0.09 -- 8 30 61 85 73 0.1 -- 8 31 60 84 72 0.1 -- 8 Month 64 87 75 3.03 8 329 Data Controls Monthly: January February March April May June July August September October November December   | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather