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December Normals for Upperco, MD

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 30 49 39 0.1 26 0 2 29 49 39 0.1 26 0 3 29 48 39 0.1 26 0 4 29 48 38 0.1 27 0 5 28 48 38 0.1 27 0 6 28 47 38 0.1 27 0 7 28 47 37 0.1 28 0 8 27 47 37 0.1 28 0 9 27 46 37 0.1 28 0 10 27 46 36 0.1 29 0 11 27 45 36 0.1 29 0 12 26 45 36 0.1 29 0 13 26 45 35 0.1 30 0 14 26 44 35 0.1 30 0 15 26 44 35 0.1 30 0 16 25 44 35 0.1 30 0 17 25 44 34 0.1 31 0 18 25 43 34 0.1 31 0 19 25 43 34 0.1 31 0 20 24 43 34 0.1 31 0 21 24 43 33 0.1 32 0 22 24 42 33 0.1 32 0 23 24 42 33 0.1 32 0 24 24 42 33 0.1 32 0 25 23 42 33 0.1 32 0 26 23 41 32 0.1 33 0 27 23 41 32 0.1 33 0 28 23 41 32 0.1 33 0 29 23 41 32 0.1 33 0 30 23 40 32 0.1 33 0 31 23 40 31 0.1 34 0 Month 26 44 35 3.1 933 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