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December Normals for Superior, IA

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 15 31 23 0.04 42 0 2 15 31 23 0.04 42 0 3 14 30 22 0.04 43 0 4 14 30 22 0.03 43 0 5 13 29 21 0.03 44 0 6 13 29 21 0.03 44 0 7 13 28 21 0.03 44 0 8 12 28 20 0.03 45 0 9 12 28 20 0.03 45 0 10 11 27 19 0.03 46 0 11 11 27 19 0.03 46 0 12 11 27 19 0.02 46 0 13 10 26 18 0.02 47 0 14 10 26 18 0.02 47 0 15 9 26 18 0.02 47 0 16 9 25 17 0.02 48 0 17 9 25 17 0.02 48 0 18 8 25 17 0.02 48 0 19 8 24 16 0.02 49 0 20 8 24 16 0.02 49 0 21 7 24 16 0.02 49 0 22 7 24 15 0.02 50 0 23 7 23 15 0.02 50 0 24 7 23 15 0.02 50 0 25 6 23 15 0.02 50 0 26 6 23 14 0.02 51 0 27 6 23 14 0.02 51 0 28 5 22 14 0.02 51 0 29 5 22 14 0.02 51 0 30 5 22 14 0.02 52 0 31 5 22 13 0.02 52 0 Month 9 26 18 0.76 1470 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