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July Normals for Joliet, IL

< June August > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 61 86 74 0.13 0 9 2 61 86 74 0.13 0 9 3 62 86 74 0.13 0 9 4 62 86 74 0.12 0 9 5 62 86 74 0.12 0 9 6 62 86 74 0.12 0 9 7 62 87 75 0.12 0 10 8 62 87 75 0.12 0 10 9 62 87 75 0.12 0 10 10 63 87 75 0.12 0 10 11 63 87 75 0.12 0 10 12 63 87 75 0.12 0 10 13 63 87 75 0.12 0 10 14 63 87 75 0.12 0 10 15 63 87 75 0.13 0 10 16 63 87 75 0.13 0 10 17 63 87 75 0.13 0 10 18 63 87 75 0.13 0 10 19 63 87 75 0.13 0 10 20 63 87 75 0.13 0 10 21 63 87 75 0.13 0 10 22 63 87 75 0.13 0 10 23 63 87 75 0.13 0 10 24 64 87 75 0.13 0 10 25 64 87 75 0.13 0 11 26 64 87 75 0.13 0 11 27 64 87 75 0.14 0 10 28 64 87 75 0.14 0 10 29 63 87 75 0.14 0 10 30 63 87 75 0.14 -- 10 31 63 87 75 0.14 -- 10 Month 63 87 75 3.97 2 306 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