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December Normals for Charleston, OR

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 41 54 47 0.37 18 0 2 40 54 47 0.36 18 0 3 40 54 47 0.36 18 0 4 40 54 47 0.36 18 0 5 40 54 47 0.36 18 0 6 40 54 47 0.35 18 0 7 40 53 47 0.35 18 0 8 40 53 47 0.35 18 0 9 40 53 46 0.35 19 0 10 40 53 46 0.34 19 0 11 40 53 46 0.34 19 0 12 39 53 46 0.34 19 0 13 39 53 46 0.34 19 0 14 39 53 46 0.34 19 0 15 39 53 46 0.33 19 0 16 39 53 46 0.33 19 0 17 39 53 46 0.33 19 0 18 39 53 46 0.33 19 0 19 39 53 46 0.33 19 0 20 39 52 46 0.33 19 0 21 39 52 46 0.33 19 0 22 39 52 46 0.32 19 0 23 39 52 46 0.32 19 0 24 39 52 46 0.32 19 0 25 39 52 46 0.32 19 0 26 39 52 45 0.32 19 0 27 39 52 45 0.32 20 0 28 39 52 45 0.32 20 0 29 39 52 45 0.32 20 0 30 39 52 45 0.32 20 0 31 39 52 46 0.32 20 0 Month 39 53 46 10.42 586 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