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September Normals for Lewis, NY

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 49 72 60 0.14 5 -- 2 48 71 60 0.14 6 -- 3 48 71 60 0.14 6 0 4 48 71 59 0.15 6 0 5 48 70 59 0.15 6 0 6 47 70 59 0.15 7 0 7 47 70 58 0.15 7 0 8 47 70 58 0.15 7 0 9 46 69 58 0.15 7 0 10 46 69 58 0.15 8 0 11 46 69 57 0.14 8 0 12 45 68 57 0.14 8 0 13 45 68 57 0.14 8 0 14 45 68 56 0.14 9 0 15 44 67 56 0.14 9 0 16 44 67 56 0.14 9 0 17 44 67 55 0.14 10 0 18 44 66 55 0.14 10 0 19 43 66 55 0.14 10 0 20 43 66 54 0.14 11 0 21 43 65 54 0.14 11 0 22 42 65 54 0.14 11 0 23 42 65 53 0.14 12 0 24 41 64 53 0.14 12 0 25 41 64 53 0.13 12 0 26 41 64 52 0.13 13 0 27 40 63 52 0.13 13 0 28 40 63 51 0.13 13 0 29 40 63 51 0.13 14 0 30 39 62 51 0.13 14 0 Month 44 67 56 4.21 282 2 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