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September Normals for Alpine, CO

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 37 66 52 0.05 13 0 2 36 66 51 0.05 14 0 3 36 66 51 0.05 14 0 4 36 66 51 0.05 14 0 5 36 65 51 0.05 14 0 6 35 65 50 0.05 15 0 7 35 65 50 0.05 15 0 8 35 65 50 0.05 15 0 9 35 65 50 0.05 15 0 10 34 64 49 0.05 16 0 11 34 64 49 0.05 16 0 12 34 64 49 0.05 16 0 13 34 64 49 0.05 16 0 14 33 63 48 0.05 17 0 15 33 63 48 0.05 17 0 16 33 63 48 0.05 17 0 17 32 63 47 0.05 18 0 18 32 62 47 0.05 18 0 19 32 62 47 0.05 18 0 20 32 62 47 0.05 18 0 21 31 61 46 0.05 19 0 22 31 61 46 0.05 19 0 23 31 61 46 0.04 19 0 24 30 61 45 0.04 19 0 25 30 60 45 0.04 20 0 26 30 60 45 0.04 20 0 27 30 60 45 0.04 20 0 28 29 59 44 0.04 21 0 29 29 59 44 0.04 21 0 30 29 59 44 0.04 21 0 Month 33 63 48 1.42 515 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