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December Normals for South Byron, WI

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 22 34 28 0.06 37 0 2 21 34 28 0.05 37 0 3 21 34 27 0.05 38 0 4 20 33 27 0.05 38 0 5 20 33 26 0.05 39 0 6 19 32 26 0.05 39 0 7 19 32 25 0.05 40 0 8 18 32 25 0.05 40 0 9 18 31 25 0.05 40 0 10 18 31 24 0.05 41 0 11 17 30 24 0.05 41 0 12 17 30 23 0.05 42 0 13 16 30 23 0.05 42 0 14 16 29 23 0.05 42 0 15 16 29 22 0.04 43 0 16 15 29 22 0.04 43 0 17 15 28 22 0.04 43 0 18 15 28 21 0.04 44 0 19 14 28 21 0.04 44 0 20 14 27 21 0.04 44 0 21 14 27 20 0.04 45 0 22 13 27 20 0.04 45 0 23 13 27 20 0.04 45 0 24 13 26 19 0.04 45 0 25 12 26 19 0.04 46 0 26 12 26 19 0.04 46 0 27 12 26 19 0.04 46 0 28 11 25 18 0.04 47 0 29 11 25 18 0.04 47 0 30 11 25 18 0.04 47 0 31 11 25 18 0.04 47 0 Month 16 29 22 1.39 1323 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