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December Normals for Riverside, WA

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 26 36 31 0.05 34 0 2 26 36 31 0.04 34 0 3 26 36 31 0.04 34 0 4 26 36 31 0.04 34 0 5 26 35 30 0.04 35 0 6 25 35 30 0.04 35 0 7 25 35 30 0.04 35 0 8 25 34 30 0.04 35 0 9 25 34 29 0.04 36 0 10 25 34 29 0.04 36 0 11 24 34 29 0.04 36 0 12 24 33 29 0.04 36 0 13 24 33 29 0.04 36 0 14 24 33 28 0.04 37 0 15 24 33 28 0.04 37 0 16 23 33 28 0.04 37 0 17 23 32 28 0.04 37 0 18 23 32 28 0.04 37 0 19 23 32 28 0.04 37 0 20 23 32 27 0.04 38 0 21 23 32 27 0.04 38 0 22 23 32 27 0.04 38 0 23 22 32 27 0.04 38 0 24 22 32 27 0.04 38 0 25 22 31 27 0.04 38 0 26 22 31 27 0.04 38 0 27 22 31 27 0.04 38 0 28 22 31 26 0.04 39 0 29 22 31 26 0.04 39 0 30 21 31 26 0.04 39 0 31 21 31 26 0.04 39 0 Month 24 33 28 1.25 1138 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