September 2022 Climate Review

Overview
Monthly Summary
Events

Overview

September of 2022 saw near normal temperatures across northeastern Illinois and northwest Indiana with Chicago recording an average monthly temperature that was about a degree above normal, while Rockford had an average monthly temperature that was about normal. Precipitation, on the other hand, saw a wide range of values across the area this past month as parts of northern Illinois recorded rainfall amounts over an inch above normal while central Illinois and northwest Indiana recorded below normal precipitation.

Chicago and Rockford September 2022 Summary

...A Look Back at the Climate for the Month of September 2022 for
Chicago and Rockford...

At Chicago, the average high temperature was 76.0 degrees, which
is 0.5 degrees above normal. The average low temperature was 58.8
degrees, which is 1.7 degrees above normal. The average
temperature for the month was 67.4 degrees, which is 1.1 degrees
above normal. During the month of September, 2.20 inches of
precipitation were recorded, which is 0.99 inches below normal.

There were no records set during the month of September 2022 for
Chicago.


At Rockford, the average high temperature was 75.2 degrees, which
is 0.1 degrees below normal. The average low temperature was 53.8
degrees, which is 0.3 degrees above normal. The average
temperature for the month was 64.5 degrees, which is 0.1 degrees
above normal. During the month of September, 5.84 inches of
precipitation were recorded, which is 2.22 inches above normal.

There was one daily record set for Rockford during the month of
September 2022:
* Record daily maximum rainfall of 4.46 inches on the 11th.

Monthly Climate Report: Chicago | Rockford

Events

September 20, 2022: Scattered thunderstorm wind damage from Beloit to the western Chicago suburbs
September 18, 2022: Hail to the size of ping pong balls in Geneva and St. Charles
September 11-12, 2022: 3 to 5" of heavy rainfall produces flash flooding on the north side of Chicago

NWS Chicago Science and Past Events Page