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December Normals for Mercer, TN

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 36 55 45 0.19 20 0 2 35 54 45 0.19 20 0 3 35 54 45 0.19 20 0 4 35 54 44 0.19 21 0 5 35 53 44 0.2 21 0 6 34 53 44 0.2 21 0 7 34 53 43 0.2 22 0 8 34 52 43 0.2 22 0 9 33 52 43 0.2 22 0 10 33 52 42 0.2 23 0 11 33 51 42 0.19 23 0 12 33 51 42 0.19 23 0 13 32 51 42 0.19 23 0 14 32 50 41 0.19 24 0 15 32 50 41 0.19 24 0 16 32 50 41 0.19 24 0 17 31 50 41 0.19 24 0 18 31 49 40 0.19 25 0 19 31 49 40 0.19 25 0 20 31 49 40 0.19 25 0 21 31 49 40 0.18 25 0 22 30 48 39 0.18 26 0 23 30 48 39 0.18 26 0 24 30 48 39 0.18 26 0 25 30 48 39 0.18 26 0 26 30 48 39 0.18 26 0 27 30 47 39 0.17 27 0 28 29 47 38 0.17 27 0 29 29 47 38 0.17 27 0 30 29 47 38 0.16 27 0 31 29 47 38 0.16 27 0 Month 32 50 41 5.77 742 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