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October Normals for Helena, MT

< September November > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 43 67 55 0.03 10 0 2 42 67 55 0.03 11 0 3 42 66 54 0.03 11 0 4 42 66 54 0.03 11 0 5 42 66 54 0.03 11 0 6 42 65 54 0.03 11 0 7 42 65 53 0.03 12 0 8 42 64 53 0.03 12 0 9 41 64 53 0.03 12 0 10 41 64 52 0.03 13 0 11 41 63 52 0.03 13 0 12 41 63 52 0.03 13 0 13 41 62 52 0.03 14 0 14 40 62 51 0.03 14 0 15 40 61 51 0.03 14 0 16 40 61 51 0.03 15 0 17 40 61 50 0.02 15 0 18 39 60 50 0.02 15 0 19 39 60 49 0.02 16 0 20 39 59 49 0.02 16 0 21 38 59 49 0.02 16 0 22 38 58 48 0.02 17 0 23 38 57 48 0.02 17 0 24 38 57 47 0.02 18 0 25 37 56 47 0.02 18 0 26 37 56 46 0.02 19 0 27 37 55 46 0.02 19 0 28 36 55 45 0.02 20 0 29 36 54 45 0.02 20 0 30 36 53 44 0.02 20 0 31 35 53 44 0.02 21 0 Month 40 61 50 0.78 464 0 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