Paris Average Temperature by Month

This page shows the average temperature in each month of the year in Paris, Illinois. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Paris?
In Paris, Illinois, the warmest month is July, with an average daily high temperature of 84.9 °F and an average low of 65.3 °F.
What's the Coldest Month in Paris?
In Paris, Illinois, the coolest month is January, with an average daily high temperature of 34.8 °F and an average low of 18.8 °F.
Month Avg. High Avg. Low
January 34.8 °F 18.8 °F
February 39.7 °F 22.1 °F
March 51.0 °F 31.6 °F
April 63.6 °F 41.7 °F
May 73.4 °F 52.8 °F
June 82.4 °F 62.4 °F
July 84.9 °F 65.3 °F
August 83.9 °F 63.4 °F
September 78.5 °F 55.7 °F
October 66.2 °F 44.3 °F
November 51.5 °F 33.1 °F
December 39.5 °F 24.5 °F
Year 62.5 °F 43.0 °F
Weather Station Details
Years Station Coordinates
1893–2024 Paris STP location
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