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January Normals for Colma, CA

< December February > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 40 55 47 0.26 18 0 2 40 55 47 0.27 18 0 3 40 55 48 0.27 18 0 4 40 55 48 0.28 18 0 5 40 55 48 0.28 17 0 6 40 55 48 0.28 17 0 7 40 55 48 0.29 17 0 8 40 55 48 0.29 17 0 9 40 55 48 0.29 17 0 10 40 55 48 0.3 17 0 11 40 55 48 0.3 17 0 12 40 55 48 0.3 17 0 13 40 56 48 0.31 17 0 14 40 56 48 0.31 17 0 15 41 56 48 0.31 17 0 16 41 56 48 0.31 17 0 17 41 56 48 0.32 17 0 18 41 56 48 0.32 17 0 19 41 56 49 0.32 16 0 20 41 56 49 0.32 16 0 21 41 57 49 0.33 16 0 22 41 57 49 0.33 16 0 23 41 57 49 0.33 16 0 24 41 57 49 0.33 16 0 25 41 57 49 0.33 16 0 26 41 58 49 0.33 16 0 27 42 58 50 0.33 15 0 28 42 58 50 0.34 15 0 29 42 58 50 0.34 15 0 30 42 58 50 0.34 15 0 31 42 59 50 0.34 15 0 Month 41 56 49 9.6 513 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