July 2021 Climate Summary

Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Public Information Statement National Weather Service Chicago IL 355 AM CDT Sun Aug 1 2021 /455 AM EDT Sun Aug 1 2021/ ...A Look Back at the Climate for the Month of July 2021 for Chicago and Rockford...

At Chicago, the average high temperature was 82.3 degrees, which is 2.2 degrees below normal. The average low temperature was 66.5 degrees, which is 0.1 degrees above normal. The average temperature for the month was 74.4 degrees, which is 1.0 degree below normal. During the month of July, 1.90 inches of precipitation were recorded, which is 1.81 inches below normal. There were no records set during the month of July 2021 for Chicago. At Rockford, the average high temperature was 84.4 degrees, which is 0.5 degrees above normal. The average low temperature was 65.2 degrees, which is 1.6 degrees above normal. The average temperature for the month was 74.8 degrees, which is 1.0 degrees above normal. During the month of August, 2.27 inches of precipitation were recorded, which is 1.54 inches below normal. There were no records set during the month of July 2021 for Rockford. $$