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Climatological Normals

September Normals for Massena, IA

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 57 80 68 0.13 2 5 2 56 80 68 0.13 2 5 3 56 80 68 0.13 2 4 4 56 79 68 0.13 2 4 5 55 79 67 0.13 2 4 6 55 79 67 0.13 2 4 7 55 79 67 0.13 2 4 8 54 78 66 0.13 2 3 9 54 78 66 0.13 2 3 10 53 78 66 0.13 2 3 11 53 78 65 0.13 3 3 12 53 77 65 0.13 3 3 13 52 77 65 0.13 3 3 14 52 77 64 0.13 3 2 15 52 76 64 0.13 3 2 16 51 76 64 0.13 3 2 17 51 76 63 0.13 4 2 18 50 75 63 0.13 4 2 19 50 75 63 0.13 4 2 20 50 75 62 0.13 4 2 21 49 74 62 0.13 5 1 22 49 74 62 0.13 5 1 23 48 74 61 0.12 5 1 24 48 73 61 0.12 5 1 25 48 73 60 0.12 6 1 26 47 73 60 0.12 6 1 27 47 72 60 0.12 6 1 28 46 72 59 0.12 7 1 29 46 72 59 0.12 7 1 30 46 71 58 0.11 7 1 Month 51 76 64 3.81 113 72 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