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December Normals for Waterloo, WI

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 21 34 27 0.06 38 0 2 20 33 27 0.06 38 0 3 20 33 26 0.06 39 0 4 19 32 26 0.06 39 0 5 19 32 26 0.06 40 0 6 19 31 25 0.05 40 0 7 18 31 25 0.05 40 0 8 18 31 24 0.05 41 0 9 17 30 24 0.05 41 0 10 17 30 24 0.05 41 0 11 17 30 23 0.05 42 0 12 16 29 23 0.05 42 0 13 16 29 23 0.04 43 0 14 16 28 22 0.04 43 0 15 15 28 22 0.04 43 0 16 15 28 21 0.04 44 0 17 15 28 21 0.04 44 0 18 14 27 21 0.04 44 0 19 14 27 20 0.04 45 0 20 14 27 20 0.04 45 0 21 13 26 20 0.04 45 0 22 13 26 20 0.04 46 0 23 13 26 19 0.04 46 0 24 12 26 19 0.03 46 0 25 12 25 19 0.03 46 0 26 12 25 18 0.03 47 0 27 11 25 18 0.03 47 0 28 11 25 18 0.03 47 0 29 11 24 18 0.03 47 0 30 10 24 17 0.03 48 0 31 10 24 17 0.03 48 0 Month 15 28 22 1.33 1345 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