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December Normals for Lake Mills, WI

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 21 36 28 0.07 36 0 2 21 35 28 0.07 37 0 3 21 35 28 0.07 37 0 4 20 34 27 0.06 38 0 5 20 34 27 0.06 38 0 6 19 33 26 0.06 39 0 7 19 33 26 0.06 39 0 8 19 33 26 0.06 39 0 9 18 32 25 0.06 40 0 10 18 32 25 0.06 40 0 11 17 32 24 0.06 40 0 12 17 31 24 0.06 41 0 13 17 31 24 0.05 41 0 14 16 30 23 0.05 41 0 15 16 30 23 0.05 42 0 16 16 30 23 0.05 42 0 17 15 30 22 0.05 42 0 18 15 29 22 0.05 43 0 19 15 29 22 0.05 43 0 20 14 29 21 0.05 43 0 21 14 28 21 0.05 44 0 22 14 28 21 0.05 44 0 23 13 28 21 0.05 44 0 24 13 28 20 0.05 45 0 25 13 27 20 0.05 45 0 26 12 27 20 0.05 45 0 27 12 27 20 0.05 45 0 28 12 27 19 0.04 46 0 29 11 26 19 0.04 46 0 30 11 26 19 0.04 46 0 31 11 26 19 0.04 47 0 Month 16 30 23 1.66 1298 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