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December Normals for Sumpter, OR

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 19 36 27 0.07 38 0 2 18 36 27 0.07 38 0 3 18 36 27 0.07 38 0 4 18 35 27 0.07 38 0 5 17 35 26 0.07 39 0 6 17 35 26 0.07 39 0 7 17 35 26 0.07 39 0 8 16 35 26 0.07 40 0 9 16 34 25 0.07 40 0 10 16 34 25 0.06 40 0 11 16 34 25 0.06 40 0 12 15 34 25 0.06 40 0 13 15 34 24 0.06 41 0 14 15 33 24 0.06 41 0 15 15 33 24 0.06 41 0 16 14 33 24 0.06 41 0 17 14 33 24 0.06 41 0 18 14 33 24 0.06 42 0 19 14 33 23 0.06 42 0 20 14 33 23 0.06 42 0 21 14 33 23 0.06 42 0 22 13 33 23 0.06 42 0 23 13 32 23 0.06 42 0 24 13 32 23 0.06 42 0 25 13 32 23 0.06 42 0 26 13 32 23 0.06 43 0 27 13 32 22 0.06 43 0 28 13 32 22 0.06 43 0 29 12 32 22 0.06 43 0 30 12 32 22 0.06 43 0 31 12 32 22 0.06 43 0 Month 15 34 24 1.95 1268 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