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August Normals for Decorra, IL

< July September > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 67 85 76 0.13 0 12 2 67 85 76 0.13 0 11 3 67 85 76 0.13 0 11 4 67 85 76 0.13 0 11 5 67 85 76 0.13 0 11 6 67 85 76 0.13 0 11 7 67 85 76 0.13 0 11 8 67 85 76 0.13 0 11 9 67 84 76 0.13 0 11 10 66 84 75 0.13 0 11 11 66 84 75 0.13 0 11 12 66 84 75 0.13 0 10 13 66 84 75 0.13 0 10 14 66 84 75 0.13 0 10 15 66 84 75 0.12 0 10 16 66 84 75 0.12 0 10 17 65 83 74 0.12 0 10 18 65 83 74 0.12 0 10 19 65 83 74 0.12 0 9 20 65 83 74 0.12 1 9 21 65 83 74 0.12 1 9 22 64 82 73 0.12 1 9 23 64 82 73 0.12 1 9 24 64 82 73 0.12 1 8 25 64 82 73 0.12 1 8 26 63 82 73 0.12 1 8 27 63 81 72 0.12 1 8 28 63 81 72 0.12 1 8 29 62 81 72 0.12 1 7 30 62 81 72 0.12 1 7 31 62 81 71 0.12 1 7 Month 65 83 74 3.86 12 298 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