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September Normals for Grass Range, MT

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 46 77 61 0.05 6 3 2 46 76 61 0.05 7 3 3 45 76 60 0.05 7 2 4 45 75 60 0.05 7 2 5 44 75 60 0.05 7 2 6 44 74 59 0.05 8 2 7 44 74 59 0.05 8 2 8 43 73 58 0.04 8 2 9 43 73 58 0.04 9 1 10 43 72 58 0.04 9 1 11 42 72 57 0.04 9 1 12 42 72 57 0.04 9 1 13 41 71 56 0.04 10 1 14 41 71 56 0.04 10 1 15 41 70 56 0.04 10 1 16 41 70 55 0.04 10 1 17 40 70 55 0.04 11 1 18 40 69 55 0.04 11 1 19 40 69 54 0.04 11 0 20 39 69 54 0.04 11 0 21 39 68 54 0.04 12 0 22 39 68 53 0.04 12 0 23 39 68 53 0.04 12 0 24 38 67 53 0.04 12 0 25 38 67 53 0.04 12 0 26 38 67 52 0.04 13 0 27 38 67 52 0.04 13 0 28 37 66 52 0.04 13 0 29 37 66 52 0.04 13 0 30 37 66 51 0.04 14 0 Month 41 71 56 1.27 304 28 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