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December Normals for Decatur, OH

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 29 48 38 0.12 27 0 2 29 48 38 0.12 27 0 3 28 47 38 0.12 27 0 4 28 47 37 0.12 28 0 5 27 46 37 0.12 28 0 6 27 46 37 0.12 28 0 7 27 46 36 0.12 29 0 8 26 45 36 0.12 29 0 9 26 45 36 0.12 29 0 10 26 45 35 0.12 30 0 11 26 45 35 0.12 30 0 12 25 44 35 0.12 30 0 13 25 44 34 0.12 31 0 14 25 44 34 0.12 31 0 15 24 43 34 0.12 31 0 16 24 43 34 0.11 31 0 17 24 43 33 0.11 32 0 18 24 42 33 0.11 32 0 19 23 42 33 0.11 32 0 20 23 42 33 0.11 32 0 21 23 42 32 0.11 33 0 22 23 41 32 0.11 33 0 23 22 41 32 0.11 33 0 24 22 41 32 0.11 33 0 25 22 41 31 0.11 34 0 26 22 40 31 0.11 34 0 27 22 40 31 0.11 34 0 28 21 40 31 0.11 34 0 29 21 40 30 0.11 35 0 30 21 39 30 0.1 35 0 31 21 39 30 0.1 35 0 Month 24 43 34 3.54 967 0 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