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Climatological Normals

September Normals for Orenco, OR

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 44 75 60 0.05 6 -- 2 44 75 60 0.05 6 -- 3 44 75 60 0.05 6 -- 4 44 75 59 0.05 6 -- 5 44 75 59 0.06 6 -- 6 44 75 59 0.06 6 -- 7 43 75 59 0.06 6 -- 8 43 74 59 0.06 7 0 9 43 74 59 0.06 7 0 10 43 74 58 0.07 7 0 11 43 74 58 0.07 7 0 12 42 74 58 0.07 7 0 13 42 73 58 0.07 7 0 14 42 73 58 0.07 8 0 15 42 73 58 0.07 8 0 16 42 73 57 0.07 8 0 17 42 72 57 0.07 8 0 18 41 72 57 0.07 8 0 19 41 72 57 0.08 9 0 20 41 72 56 0.08 9 0 21 41 71 56 0.08 9 0 22 41 71 56 0.08 9 0 23 40 71 56 0.08 10 0 24 40 70 55 0.08 10 0 25 40 70 55 0.08 10 0 26 40 70 55 0.08 10 0 27 40 70 55 0.08 10 0 28 40 69 54 0.08 11 0 29 39 69 54 0.08 11 0 30 39 69 54 0.08 11 0 Month 42 73 57 2.09 243 7 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