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September Normals for Bonney Lake, WA

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 54 76 65 0.05 2 2 2 54 76 65 0.05 2 2 3 53 76 65 0.05 2 2 4 53 75 64 0.05 2 2 5 53 75 64 0.05 2 2 6 53 75 64 0.05 3 2 7 53 75 64 0.05 3 1 8 53 75 64 0.05 3 1 9 52 74 63 0.05 3 1 10 52 74 63 0.05 3 1 11 52 74 63 0.05 3 1 12 52 74 63 0.05 3 1 13 52 73 62 0.06 4 1 14 51 73 62 0.06 4 1 15 51 73 62 0.06 4 1 16 51 73 62 0.06 4 1 17 51 72 62 0.06 4 1 18 51 72 61 0.06 5 1 19 50 72 61 0.06 5 1 20 50 71 61 0.06 5 1 21 50 71 60 0.06 5 1 22 50 71 60 0.06 5 1 23 49 70 60 0.06 6 0 24 49 70 60 0.07 6 0 25 49 70 59 0.07 6 0 26 49 69 59 0.07 6 0 27 49 69 59 0.07 7 0 28 48 68 58 0.07 7 0 29 48 68 58 0.07 7 0 30 48 68 58 0.07 7 0 Month 51 72 62 1.75 128 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