September 2020 Climate Summary

Overview & Graphics
Monthly Summary
Events

Overview & Graphics

A look at Chicago and Rockford's temperature and precipitation for the month of September.

Chicago and Rockford Monthly Summary

Public Information Statement
National Weather Service Chicago IL
1118 AM CDT Thu Oct 1 2020 /1218 PM EDT Thu Oct 1 2020/

...A Look Back at the Climate for the Month of September 2020 for
Chicago and Rockford...

At Chicago, the average high temperature was 74.6 degrees, which
is 0.2 degrees below normal. The average low temperature was 57.9
degrees, which is 3.6 degrees above normal. The average
temperature for the month was 66.3 degrees, which is 1.7 degrees
above normal. During the month of September, 3.18 inches of
precipitation were recorded, which is 0.03 of an inch below
normal.

There were no daily or monthly records set for Chicago during the
month of September 2020.

At Rockford, the average high temperature was 73.7 degrees, which
is 1.7 degrees below normal. The average low temperature was 52.8
degrees, which is 0.4 degrees above normal. The average
temperature for the month was 63.3 degrees, which is 0.6 degrees
below normal. During the month of September, 6.61 inches of
precipitation were recorded, which is 3.26 inches above normal.

There were 3 daily records for Rockford during the month of
September 2020:
* Record daily precipitation of 2.06 inches on the 8th.
* Tied record daily lowest maximum temperature of 58 degrees on
  the 8th.
* Record daily lowest maximum temperature of 58 degrees on the 9th.

There were no monthly records set for Rockford during the month of
September 2020.

$$

Monthly Climate Report: Chicago | Rockford

Events

No significant weather events occurred in the area this past month.

NWS Chicago Science and Past Events Page