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August Normals for Rochester, IL

< July September > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 66 86 76 0.11 0 11 2 66 86 76 0.11 0 11 3 66 86 76 0.11 0 11 4 66 86 76 0.11 0 11 5 66 86 76 0.11 0 11 6 66 86 76 0.11 0 11 7 66 86 76 0.11 0 11 8 65 86 75 0.11 0 10 9 65 85 75 0.11 0 10 10 65 85 75 0.11 0 10 11 65 85 75 0.11 0 10 12 65 85 75 0.11 0 10 13 65 85 75 0.11 0 10 14 65 85 75 0.11 0 10 15 64 85 75 0.11 0 10 16 64 85 74 0.11 0 9 17 64 84 74 0.11 0 9 18 64 84 74 0.11 0 9 19 64 84 74 0.11 0 9 20 63 84 74 0.11 0 9 21 63 84 74 0.11 0 9 22 63 84 73 0.11 0 9 23 63 84 73 0.11 0 9 24 62 84 73 0.11 0 8 25 62 83 73 0.11 0 8 26 62 83 73 0.11 0 8 27 62 83 72 0.11 0 8 28 61 83 72 0.11 1 8 29 61 83 72 0.11 1 8 30 61 83 72 0.11 1 7 31 61 82 71 0.11 1 7 Month 64 85 74 3.41 4 291 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