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December Normals for Portage, MI

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 26 40 33 0.12 32 0 2 25 40 33 0.12 32 0 3 25 40 32 0.12 33 0 4 25 39 32 0.12 33 0 5 24 39 32 0.12 33 0 6 24 39 31 0.12 34 0 7 24 38 31 0.11 34 0 8 23 38 31 0.11 34 0 9 23 37 30 0.11 35 0 10 23 37 30 0.11 35 0 11 22 37 30 0.11 35 0 12 22 36 29 0.11 36 0 13 22 36 29 0.11 36 0 14 21 36 29 0.11 36 0 15 21 35 28 0.11 37 0 16 21 35 28 0.11 37 0 17 21 35 28 0.1 37 0 18 20 35 27 0.1 38 0 19 20 34 27 0.1 38 0 20 20 34 27 0.1 38 0 21 20 34 27 0.1 38 0 22 19 34 26 0.1 39 0 23 19 33 26 0.1 39 0 24 19 33 26 0.1 39 0 25 19 33 26 0.1 39 0 26 18 33 25 0.1 39 0 27 18 32 25 0.1 40 0 28 18 32 25 0.1 40 0 29 18 32 25 0.1 40 0 30 17 32 25 0.1 40 0 31 17 32 24 0.09 41 0 Month 21 36 28 3.31 1137 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