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December Normals for Harpers Ferry, WV

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 31 51 41 0.09 24 0 2 30 50 40 0.09 25 0 3 30 50 40 0.09 25 0 4 30 49 40 0.09 25 0 5 29 49 39 0.09 26 0 6 29 49 39 0.09 26 0 7 29 48 39 0.09 26 0 8 29 48 38 0.09 27 0 9 28 48 38 0.09 27 0 10 28 47 38 0.09 27 0 11 28 47 37 0.09 28 0 12 28 47 37 0.09 28 0 13 27 46 37 0.09 28 0 14 27 46 37 0.09 28 0 15 27 46 36 0.09 29 0 16 27 45 36 0.09 29 0 17 27 45 36 0.09 29 0 18 26 45 36 0.09 29 0 19 26 45 35 0.09 30 0 20 26 44 35 0.08 30 0 21 26 44 35 0.08 30 0 22 25 44 35 0.08 30 0 23 25 44 35 0.08 31 0 24 25 44 34 0.08 31 0 25 25 43 34 0.09 31 0 26 25 43 34 0.09 31 0 27 25 43 34 0.09 31 0 28 24 43 34 0.09 31 0 29 24 43 33 0.09 32 0 30 24 42 33 0.09 32 0 31 24 42 33 0.09 32 0 Month 27 46 36 2.74 888 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