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September 2023 Monthly Climate Summary Graphic |
Chicago and Rockford Monthly Summary
Public Information Statement National Weather Service Chicago IL 858 AM CDT Sun Oct 1 2023 /958 AM EDT Sun Oct 1 2023/ ...A Look Back at the Climate for the Month of September 2023 for Chicago and Rockford... At Chicago, the average high temperature was 77.7 degrees, which is 2.2 degrees above normal. The average low temperature was 61.2 degrees, which is 4.1 degrees above normal. The average temperature for the month was 69.5 degrees, which is 3.2 degrees above normal. 3.36 inches of precipitation were recorded, which is 0.17 inches above normal. There were no daily or top ten monthly records set for Chicago during the month of September 2023. At Rockford, the average high temperature was 77.4 degrees, which is 2.1 degrees above normal. The average low temperature was 56.6 degrees, which is 3.1 degrees above normal. The average temperature for the month was 67.0 degrees, which is 2.6 degrees above normal. 2.19 inches of precipitation were recorded, which is 1.43 inches below normal. There were no daily or top ten monthly records set for Rockford during the month of September 2023.
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