December 2022 Climate Summary

Overview & Graphics
Monthly Summary
Events

Overview & Graphics

This past December finished with slightly below normal temperatures across the region. Monthly snowfall was also a few inches below normal at most locations, but liquid precipitation totals in Chicago and Rockford finished a touch above normal.

CoCoRaHS Observer Monthly Precipitation Summary

CoCoRaHS Observer Monthly Snowfall Summary

Chicago and Rockford Monthly Summary

Public Information Statement
National Weather Service Chicago IL
1017 AM CST Sun Jan 1 2023 /1117 AM EST Sun Jan 1 2023/

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

At Chicago, the average high temperature was 35.7 degrees, which
is 0.9 degrees below normal. The average low temperature was 22.5
degrees, which is 1.9 degrees below normal. The average
temperature for the month was 29.1 degrees, which is 1.4 degrees
below normal. During the month of December, 2.16 inches of
precipitation were recorded, which is 0.05 of an inch above
normal. 3.2 inches of snow were recorded, which is 4.4 inches
below normal.

No daily or monthly records were set for Chicago in December 2022.

At Rockford, the average high temperature was 34.5 degrees, which is
0.2 degrees above normal. The average low temperature was 18.1
degrees, which is 2.1 degrees below normal. The average temperature
for the month was 26.3 degrees, which is 1 degree below normal.
During the month of December, 2.56 inches of precipitation were
recorded, which is 0.63 inches above normal. 3.3 inches of snow
were recorded, which is 6.1 inches below normal.

There was one daily record set for Rockford during the month of
December 2022:
* Record daily precipitation of 1.7 inches on the 14th.

$$

Latest Monthly Climate Report: Chicago | Rockford

Events

December 9, 2022: Soaking rain changes to a brief period of heavy, wet snow across northern Illinois
December 22-23, 2022: Powerful Arctic front brings blizzard-like conditions and bitterly cold temperatures

NWS Chicago Science and Past Events Page

Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

December 2022 Climate Summary