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September Normals for Chelan, WA

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 49 84 66 0.02 3 4 2 48 84 66 0.02 3 4 3 48 83 66 0.02 3 4 4 47 83 65 0.02 3 3 5 47 83 65 0.02 3 3 6 47 82 65 0.02 4 3 7 46 82 64 0.02 4 3 8 46 81 64 0.02 4 3 9 46 81 63 0.02 4 3 10 45 81 63 0.02 5 3 11 45 80 63 0.02 5 2 12 45 80 62 0.02 5 2 13 44 79 62 0.02 5 2 14 44 79 61 0.02 6 2 15 44 79 61 0.02 6 2 16 43 78 61 0.02 6 2 17 43 78 60 0.02 6 2 18 42 77 60 0.02 7 1 19 42 77 60 0.02 7 1 20 42 76 59 0.02 7 1 21 41 76 59 0.02 8 1 22 41 75 58 0.02 8 1 23 41 75 58 0.02 8 1 24 40 75 57 0.02 8 1 25 40 74 57 0.02 9 1 26 39 74 57 0.02 9 1 27 39 73 56 0.02 9 1 28 39 73 56 0.02 10 1 29 38 72 55 0.02 10 1 30 38 72 55 0.02 11 0 Month 43 78 61 0.6 186 59 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