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October Normals for Winnetka, IL

< September November > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 47 68 57 0.09 8 -- 2 46 67 57 0.09 8 -- 3 46 67 57 0.09 9 -- 4 45 67 56 0.09 9 -- 5 45 66 56 0.08 10 -- 6 45 66 55 0.08 10 0 7 44 66 55 0.08 10 0 8 44 65 55 0.08 11 0 9 43 65 54 0.08 11 0 10 43 64 54 0.08 12 0 11 43 64 53 0.08 12 0 12 42 63 53 0.08 12 0 13 42 63 53 0.08 13 0 14 42 63 52 0.08 13 0 15 41 62 52 0.07 13 0 16 41 62 51 0.07 14 0 17 40 61 51 0.07 14 0 18 40 61 50 0.07 15 0 19 40 60 50 0.07 15 0 20 39 60 50 0.07 15 0 21 39 60 49 0.07 16 0 22 39 59 49 0.07 16 0 23 38 59 48 0.07 17 0 24 38 58 48 0.07 17 0 25 38 58 48 0.08 17 0 26 37 57 47 0.08 18 0 27 37 57 47 0.08 18 0 28 37 56 46 0.08 19 0 29 36 56 46 0.08 19 0 30 36 55 46 0.08 19 0 31 35 55 45 0.08 20 0 Month 41 62 51 2.42 430 5 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