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December Normals for Dedham, MA

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 26 45 35 0.14 30 0 2 26 44 35 0.14 30 0 3 26 44 35 0.14 30 0 4 25 43 34 0.14 31 0 5 25 43 34 0.13 31 0 6 25 43 34 0.13 31 0 7 24 42 33 0.13 32 0 8 24 42 33 0.13 32 0 9 23 41 32 0.13 33 0 10 23 41 32 0.13 33 0 11 23 41 32 0.13 33 0 12 23 40 32 0.13 34 0 13 22 40 31 0.13 34 0 14 22 40 31 0.13 34 0 15 22 40 31 0.13 34 0 16 21 39 30 0.13 35 0 17 21 39 30 0.13 35 0 18 21 39 30 0.13 35 0 19 20 38 29 0.13 36 0 20 20 38 29 0.13 36 0 21 20 38 29 0.13 36 0 22 20 38 29 0.13 36 0 23 19 37 28 0.13 37 0 24 19 37 28 0.13 37 0 25 19 37 28 0.13 37 0 26 19 37 28 0.13 37 0 27 18 37 28 0.13 37 0 28 18 37 27 0.13 38 0 29 18 36 27 0.13 38 0 30 18 36 27 0.13 38 0 31 17 36 27 0.13 38 0 Month 22 40 31 4.07 1068 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