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September Normals for Decatur, OH

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 59 82 70 0.12 0 6 2 58 82 70 0.12 0 5 3 58 82 70 0.12 0 5 4 58 81 70 0.12 0 5 5 58 81 69 0.12 1 5 6 57 81 69 0.12 1 5 7 57 81 69 0.11 1 5 8 57 81 69 0.11 1 4 9 56 80 68 0.11 1 4 10 56 80 68 0.11 1 4 11 56 80 68 0.11 1 4 12 56 79 68 0.11 1 4 13 55 79 67 0.11 1 3 14 55 79 67 0.11 2 3 15 55 79 67 0.11 2 3 16 54 78 66 0.11 2 3 17 54 78 66 0.11 2 3 18 53 78 66 0.11 2 3 19 53 77 65 0.11 2 3 20 53 77 65 0.11 3 3 21 52 77 64 0.11 3 2 22 52 76 64 0.1 3 2 23 51 76 64 0.1 3 2 24 51 76 63 0.1 4 2 25 50 75 63 0.1 4 2 26 50 75 62 0.1 4 2 27 50 75 62 0.1 5 2 28 49 74 62 0.1 5 2 29 49 74 61 0.1 5 2 30 48 73 61 0.1 6 1 Month 54 78 66 3.27 66 99 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