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December Normals for Dillon, MT

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 9 38 24 0.01 41 0 2 9 38 23 0.01 42 0 3 9 37 23 0.01 42 0 4 9 37 23 0.01 42 0 5 8 37 23 0.01 42 0 6 8 37 22 0.01 43 0 7 8 36 22 0.01 43 0 8 8 36 22 0.01 43 0 9 7 36 22 0.01 43 0 10 7 36 22 0.01 43 0 11 7 36 21 0.01 44 0 12 7 36 21 0 44 0 13 7 35 21 0 44 0 14 7 35 21 0 44 0 15 6 35 21 0 44 0 16 6 35 21 0 44 0 17 6 35 21 0 44 0 18 6 35 21 0 45 0 19 6 35 20 0 45 0 20 6 35 20 0 45 0 21 6 34 20 0 45 0 22 6 34 20 0 45 0 23 6 34 20 0 45 0 24 6 34 20 0 45 0 25 6 34 20 0 45 0 26 6 34 20 0.01 45 0 27 6 34 20 0.01 45 0 28 5 34 20 0.01 45 0 29 6 34 20 0.01 45 0 30 6 34 20 0.01 45 0 31 6 34 20 0.01 45 0 Month 7 35 21 0.17 1362 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