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October Normals for Island Lake, IL

< September November > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 48 70 59 0.1 7 1 2 48 69 59 0.1 7 1 3 48 69 58 0.09 7 1 4 47 68 58 0.09 8 1 5 47 68 57 0.09 8 1 6 46 67 57 0.09 9 1 7 46 67 57 0.09 9 1 8 46 67 56 0.09 9 0 9 45 66 56 0.09 10 0 10 45 66 55 0.09 10 0 11 45 65 55 0.09 10 0 12 44 65 54 0.09 11 0 13 44 64 54 0.09 11 0 14 43 64 54 0.08 12 0 15 43 63 53 0.08 12 0 16 43 63 53 0.08 13 0 17 42 62 52 0.08 13 0 18 42 62 52 0.08 13 0 19 41 61 51 0.08 14 0 20 41 61 51 0.08 14 0 21 41 60 50 0.08 15 0 22 40 60 50 0.08 15 0 23 40 59 50 0.08 16 0 24 40 58 49 0.08 16 0 25 39 58 49 0.08 16 0 26 39 57 48 0.09 17 0 27 38 57 48 0.09 17 0 28 38 56 47 0.09 18 0 29 38 56 47 0.09 18 0 30 37 55 46 0.09 19 0 31 37 55 46 0.09 19 0 Month 43 63 53 2.69 393 7 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