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December Normals for Preston, IA

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 20 37 29 0.07 36 0 2 20 37 28 0.07 37 0 3 19 36 28 0.07 37 0 4 19 36 27 0.07 38 0 5 19 35 27 0.07 38 0 6 18 35 27 0.07 38 0 7 18 35 26 0.07 39 0 8 18 34 26 0.07 39 0 9 17 34 26 0.06 39 0 10 17 33 25 0.06 40 0 11 17 33 25 0.06 40 0 12 16 33 24 0.06 41 0 13 16 32 24 0.06 41 0 14 16 32 24 0.06 41 0 15 15 32 23 0.06 42 0 16 15 31 23 0.06 42 0 17 15 31 23 0.06 42 0 18 14 31 22 0.05 43 0 19 14 30 22 0.05 43 0 20 14 30 22 0.05 43 0 21 13 30 21 0.05 44 0 22 13 29 21 0.05 44 0 23 13 29 21 0.05 44 0 24 12 29 21 0.05 44 0 25 12 29 20 0.05 45 0 26 12 28 20 0.05 45 0 27 11 28 20 0.05 45 0 28 11 28 20 0.05 45 0 29 11 28 19 0.04 46 0 30 10 28 19 0.04 46 0 31 10 27 19 0.04 46 0 Month 15 32 23 1.77 1293 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