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December Normals for Mexico, PA

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 28 42 35 0.1 30 0 2 28 41 35 0.1 30 0 3 28 41 34 0.1 31 0 4 27 41 34 0.1 31 0 5 27 40 34 0.1 31 0 6 27 40 33 0.1 32 0 7 26 40 33 0.09 32 0 8 26 39 33 0.09 32 0 9 26 39 32 0.09 33 0 10 26 39 32 0.09 33 0 11 25 38 32 0.09 33 0 12 25 38 32 0.09 34 0 13 25 38 31 0.09 34 0 14 24 37 31 0.09 34 0 15 24 37 31 0.09 34 0 16 24 37 30 0.09 35 0 17 24 37 30 0.09 35 0 18 23 36 30 0.09 35 0 19 23 36 30 0.09 35 0 20 23 36 29 0.09 36 0 21 23 35 29 0.09 36 0 22 22 35 29 0.09 36 0 23 22 35 29 0.08 36 0 24 22 35 28 0.09 37 0 25 22 35 28 0.09 37 0 26 21 34 28 0.09 37 0 27 21 34 28 0.09 37 0 28 21 34 28 0.09 38 0 29 21 34 27 0.09 38 0 30 20 34 27 0.09 38 0 31 20 33 27 0.09 38 0 Month 24 37 31 2.84 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