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September Normals for Irondale, MO

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 62 83 73 0.12 1 8 2 61 83 72 0.11 1 8 3 61 82 72 0.11 1 8 4 61 82 72 0.11 1 8 5 61 82 71 0.11 1 7 6 60 82 71 0.11 1 7 7 60 81 71 0.11 1 7 8 60 81 70 0.11 1 7 9 59 81 70 0.11 1 6 10 59 80 70 0.11 2 6 11 59 80 69 0.11 2 6 12 58 80 69 0.11 2 6 13 58 79 69 0.11 2 5 14 58 79 68 0.11 2 5 15 57 79 68 0.11 2 5 16 57 78 68 0.11 2 5 17 57 78 67 0.1 2 5 18 56 78 67 0.1 2 4 19 56 77 67 0.1 2 4 20 56 77 66 0.1 3 4 21 55 77 66 0.1 3 4 22 55 77 66 0.1 3 4 23 55 76 65 0.1 3 4 24 54 76 65 0.1 3 3 25 54 76 65 0.1 3 3 26 54 75 65 0.1 3 3 27 53 75 64 0.1 4 3 28 53 75 64 0.1 4 3 29 52 75 64 0.1 4 2 30 52 74 63 0.1 4 2 Month 57 79 68 3.17 66 152 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