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September Normals for Norwalk, CT

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 61 77 69 0.15 0 4 2 60 77 69 0.15 1 4 3 60 77 68 0.15 1 4 4 60 76 68 0.15 1 4 5 59 76 68 0.15 1 4 6 59 76 67 0.16 1 3 7 59 75 67 0.16 1 3 8 59 75 67 0.16 1 3 9 58 75 66 0.16 1 3 10 58 75 66 0.16 1 3 11 57 74 66 0.16 1 2 12 57 74 66 0.16 2 2 13 57 74 65 0.16 2 2 14 56 73 65 0.16 2 2 15 56 73 65 0.16 2 2 16 56 73 64 0.16 2 2 17 55 72 64 0.16 3 1 18 55 72 63 0.16 3 1 19 55 72 63 0.16 3 1 20 54 71 63 0.16 3 1 21 54 71 62 0.16 4 1 22 53 71 62 0.16 4 1 23 53 70 62 0.16 4 1 24 53 70 61 0.16 4 1 25 52 70 61 0.16 5 1 26 52 69 61 0.15 5 1 27 51 69 60 0.15 5 1 28 51 68 60 0.15 6 0 29 51 68 59 0.15 6 0 30 50 68 59 0.15 7 0 Month 56 73 64 4.7 82 58 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