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December Normals for Muskego, WI

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 23 38 31 0.08 34 0 2 23 38 30 0.08 35 0 3 23 37 30 0.07 35 0 4 22 37 29 0.07 36 0 5 22 36 29 0.07 36 0 6 21 36 29 0.07 36 0 7 21 35 28 0.07 37 0 8 20 35 28 0.07 37 0 9 20 35 27 0.07 38 0 10 20 34 27 0.06 38 0 11 19 34 27 0.06 38 0 12 19 34 26 0.06 39 0 13 19 33 26 0.06 39 0 14 18 33 26 0.06 39 0 15 18 33 25 0.06 40 0 16 18 32 25 0.06 40 0 17 17 32 25 0.06 40 0 18 17 32 24 0.06 41 0 19 17 31 24 0.06 41 0 20 16 31 24 0.06 41 0 21 16 31 23 0.06 42 0 22 16 31 23 0.05 42 0 23 15 30 23 0.05 42 0 24 15 30 22 0.05 43 0 25 15 30 22 0.05 43 0 26 14 29 22 0.05 43 0 27 14 29 22 0.05 43 0 28 14 29 21 0.05 44 0 29 14 29 21 0.05 44 0 30 13 29 21 0.05 44 0 31 13 28 21 0.05 44 0 Month 18 33 25 1.87 1234 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