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December Normals for Island Lake, WI

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 14 29 22 0.05 43 0 2 14 28 21 0.05 44 0 3 13 28 20 0.05 45 0 4 12 27 20 0.04 45 0 5 12 27 19 0.04 46 0 6 11 27 19 0.04 46 0 7 11 26 18 0.04 47 0 8 10 26 18 0.04 47 0 9 10 25 17 0.04 48 0 10 9 25 17 0.04 48 0 11 9 25 17 0.04 48 0 12 8 24 16 0.03 49 0 13 8 24 16 0.03 49 0 14 7 23 15 0.03 50 0 15 7 23 15 0.03 50 0 16 6 23 15 0.03 51 0 17 6 22 14 0.03 51 0 18 5 22 14 0.03 51 0 19 5 22 13 0.03 52 0 20 4 22 13 0.03 52 0 21 4 21 13 0.03 52 0 22 4 21 12 0.03 53 0 23 3 21 12 0.03 53 0 24 3 21 12 0.03 53 0 25 3 20 11 0.03 54 0 26 2 20 11 0.03 54 0 27 2 20 11 0.03 54 0 28 1 20 11 0.03 54 0 29 1 19 10 0.03 55 0 30 1 19 10 0.03 55 0 31 0 19 10 0.03 55 0 Month 7 23 15 1.07 1554 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