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September Normals for Ballwin, MO

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 62 86 74 0.1 0 9 2 62 85 74 0.1 0 9 3 61 85 73 0.1 0 8 4 61 85 73 0.1 0 8 5 61 84 73 0.1 0 8 6 61 84 72 0.1 0 8 7 60 84 72 0.1 0 7 8 60 84 72 0.1 0 7 9 60 83 71 0.1 0 7 10 59 83 71 0.1 0 7 11 59 83 71 0.1 1 6 12 59 82 70 0.1 1 6 13 58 82 70 0.1 1 6 14 58 82 70 0.1 1 6 15 57 81 69 0.1 1 5 16 57 81 69 0.1 1 5 17 57 81 69 0.1 1 5 18 56 80 68 0.1 1 5 19 56 80 68 0.1 2 4 20 56 80 68 0.1 2 4 21 55 79 67 0.1 2 4 22 55 79 67 0.1 2 4 23 54 79 67 0.09 2 4 24 54 78 66 0.09 2 3 25 54 78 66 0.09 3 3 26 53 78 65 0.09 3 3 27 53 77 65 0.09 3 3 28 52 77 65 0.09 3 3 29 52 77 64 0.09 3 3 30 51 76 64 0.09 4 2 Month 57 81 69 2.92 39 162 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