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September Normals for Saint Louis, OR

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 50 81 65 0.03 2 3 2 50 80 65 0.03 2 2 3 50 80 65 0.03 3 2 4 49 80 65 0.03 3 2 5 49 80 65 0.03 3 2 6 49 80 65 0.04 3 2 7 49 79 64 0.04 3 2 8 49 79 64 0.04 3 2 9 49 79 64 0.04 3 2 10 49 79 64 0.04 3 2 11 48 79 64 0.04 3 2 12 48 78 63 0.04 3 2 13 48 78 63 0.04 4 2 14 48 78 63 0.04 4 2 15 48 77 63 0.05 4 1 16 48 77 62 0.05 4 1 17 47 77 62 0.05 4 1 18 47 77 62 0.05 4 1 19 47 76 62 0.05 5 1 20 47 76 61 0.05 5 1 21 47 75 61 0.05 5 1 22 47 75 61 0.05 5 1 23 46 75 61 0.05 5 1 24 46 74 60 0.05 6 1 25 46 74 60 0.06 6 1 26 46 74 60 0.06 6 1 27 46 73 59 0.06 6 1 28 45 73 59 0.06 7 1 29 45 72 59 0.06 7 1 30 45 72 58 0.06 7 1 Month 48 77 62 1.37 128 45 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