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September Normals for Ontario, OR

< August October > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 55 87 71 0.01 1 8 2 55 87 71 0.02 2 7 3 55 86 70 0.02 2 7 4 54 86 70 0.02 2 7 5 54 85 70 0.02 2 6 6 53 85 69 0.02 2 6 7 53 85 69 0.02 2 6 8 53 84 68 0.02 2 6 9 52 84 68 0.02 2 5 10 52 83 68 0.02 3 5 11 51 83 67 0.02 3 5 12 51 83 67 0.02 3 5 13 51 82 66 0.02 3 4 14 50 82 66 0.02 3 4 15 50 81 66 0.02 3 4 16 49 81 65 0.02 4 4 17 49 80 65 0.02 4 4 18 49 80 64 0.02 4 3 19 48 80 64 0.02 4 3 20 48 79 63 0.02 5 3 21 47 79 63 0.02 5 3 22 47 78 63 0.02 5 3 23 46 78 62 0.02 5 3 24 46 78 62 0.02 5 2 25 46 77 61 0.02 6 2 26 45 77 61 0.02 6 2 27 45 76 61 0.01 6 2 28 44 76 60 0.01 7 2 29 44 76 60 0.01 7 2 30 43 75 59 0.01 7 1 Month 50 81 65 0.55 115 124 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