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December Normals for Colma, CA

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 42 59 50 0.25 15 0 2 42 58 50 0.25 15 0 3 42 58 50 0.25 15 0 4 42 58 50 0.24 15 0 5 42 58 50 0.24 15 0 6 41 58 50 0.24 15 0 7 41 57 49 0.23 16 0 8 41 57 49 0.23 16 0 9 41 57 49 0.23 16 0 10 41 57 49 0.23 16 0 11 41 57 49 0.23 16 0 12 41 57 49 0.23 16 0 13 41 56 49 0.22 16 0 14 41 56 48 0.22 17 0 15 40 56 48 0.22 17 0 16 40 56 48 0.22 17 0 17 40 56 48 0.22 17 0 18 40 56 48 0.23 17 0 19 40 56 48 0.23 17 0 20 40 56 48 0.23 17 0 21 40 56 48 0.23 17 0 22 40 55 48 0.23 17 0 23 40 55 48 0.23 17 0 24 40 55 48 0.23 17 0 25 40 55 48 0.24 17 0 26 40 55 48 0.24 17 0 27 40 55 48 0.24 18 0 28 40 55 48 0.25 18 0 29 40 55 47 0.25 18 0 30 40 55 47 0.25 18 0 31 40 55 47 0.26 18 0 Month 41 56 49 7.29 513 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