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December Normals for Central Valley, CA

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 33 49 41 0.16 24 0 2 33 48 41 0.16 24 0 3 32 48 40 0.16 25 0 4 32 48 40 0.16 25 0 5 32 48 40 0.16 25 0 6 32 48 40 0.16 25 0 7 32 48 40 0.16 25 0 8 32 47 40 0.15 25 0 9 31 47 39 0.15 26 0 10 31 47 39 0.15 26 0 11 31 47 39 0.15 26 0 12 31 47 39 0.15 26 0 13 31 47 39 0.15 26 0 14 31 47 39 0.16 26 0 15 31 46 39 0.16 26 0 16 31 46 39 0.16 26 0 17 31 46 39 0.16 26 0 18 31 46 39 0.16 26 0 19 31 46 39 0.16 26 0 20 31 46 39 0.16 26 0 21 31 46 38 0.16 27 0 22 31 46 38 0.16 27 0 23 31 46 38 0.16 27 0 24 31 46 38 0.16 27 0 25 30 46 38 0.16 27 0 26 30 46 38 0.17 27 0 27 30 46 38 0.17 27 0 28 31 46 38 0.17 27 0 29 31 46 38 0.17 27 0 30 31 46 38 0.17 27 0 31 31 46 38 0.17 27 0 Month 31 47 39 4.96 807 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