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September Normals for Mountain Home, WY

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 40 74 57 0.03 8 -- 2 40 74 57 0.03 8 0 3 40 73 57 0.03 9 0 4 39 73 56 0.03 9 0 5 39 73 56 0.03 9 0 6 39 72 56 0.03 10 0 7 38 72 55 0.04 10 0 8 38 72 55 0.04 10 0 9 38 71 55 0.04 11 0 10 37 71 54 0.04 11 0 11 37 71 54 0.04 11 0 12 37 71 54 0.04 11 0 13 36 70 53 0.04 12 0 14 36 70 53 0.04 12 0 15 36 70 53 0.04 12 0 16 35 69 52 0.04 13 0 17 35 69 52 0.04 13 0 18 35 69 52 0.04 13 0 19 34 68 51 0.04 14 0 20 34 68 51 0.04 14 0 21 34 68 51 0.04 14 0 22 34 67 51 0.04 14 0 23 33 67 50 0.04 15 0 24 33 67 50 0.04 15 0 25 33 66 50 0.04 15 0 26 33 66 49 0.04 16 0 27 32 66 49 0.04 16 0 28 32 65 49 0.04 16 0 29 32 65 48 0.04 17 0 30 32 65 48 0.04 17 0 Month 36 69 53 1.14 375 1 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