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December Normals for Sinclair, IA

< November January > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 19 34 27 0.05 38 0 2 19 34 26 0.05 39 0 3 18 34 26 0.05 39 0 4 18 33 25 0.04 40 0 5 17 33 25 0.04 40 0 6 17 32 25 0.04 40 0 7 17 32 24 0.04 41 0 8 16 31 24 0.04 41 0 9 16 31 23 0.04 42 0 10 15 30 23 0.04 42 0 11 15 30 23 0.03 42 0 12 15 30 22 0.03 43 0 13 14 29 22 0.03 43 0 14 14 29 21 0.03 44 0 15 13 29 21 0.03 44 0 16 13 28 21 0.03 44 0 17 13 28 20 0.03 45 0 18 12 28 20 0.03 45 0 19 12 27 20 0.03 45 0 20 12 27 19 0.03 46 0 21 11 27 19 0.03 46 0 22 11 27 19 0.03 46 0 23 11 26 19 0.03 46 0 24 11 26 18 0.03 47 0 25 10 26 18 0.03 47 0 26 10 26 18 0.02 47 0 27 10 26 18 0.02 47 0 28 9 25 17 0.02 48 0 29 9 25 17 0.02 48 0 30 9 25 17 0.03 48 0 31 9 25 17 0.03 48 0 Month 13 29 21 1.02 1361 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