Historical Weather in Chicago, IL

See 55+ years of weather history for any date in Chicago going back to 1970.

Part of Illinois weather history

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Searching weather history for Chicago, IL

Today in Chicago Weather HistorySee records, averages, and 55+ years of data for today's date

Monthly Climate Averages

Historical temperature and precipitation averages for Chicago, IL, based on 55+ years of weather data.

Warmest MonthJulyAvg High: 81°F / Low: 68°F
Coldest MonthJanuaryAvg High: 33°F / Low: 21°F
Jan
33°/ 21°
💧 1.6"
Feb
36°/ 23°
💧 3.9"
Mar
46°/ 33°
💧 6.3"
Apr
56°/ 41°
💧 10.4"
May
66°/ 51°
💧 8.9"
Jun
77°/ 62°
💧 10.0"
Jul
81°/ 68°
💧 8.8"
Aug
80°/ 68°
💧 12.6"
Sep
74°/ 61°
💧 7.2"
Oct
63°/ 50°
💧 14.7"
Nov
50°/ 38°
Dec
38°/ 27°

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

Chicago Temperature Records

  • Record High: The hottest temperature ever recorded in Chicago, IL is 106°F, set on July 13, 1995.
  • Record Low: The coldest temperature ever recorded in Chicago, IL is -27°F, set on January 20, 1985.
  • Data Coverage: Based on 22 years of data from NOAA weather station: CHICAGO NORTHERLY IS.

All-Time Record High

106°F
July 13, 1995

All-Time Record Low

-27°F
January 20, 1985

Monthly Temperature Records in Chicago

MonthRecord HighRecord Low
January67°F(1989)-27°F(1985)
February75°F(1976)-19°F(1996)
March88°F(1986)-12°F(2019)
April91°F(1986)7°F(1982)
May102°F(2018)27°F(1983)
June104°F(1988)36°F(1972)
July106°F(1995)43°F(1979)
August102°F(1991)42°F(1986)
September100°F(2017)28°F(1974)
October92°F(1971)17°F(1981)
November80°F(2020)0°F(1976)
December72°F(2012)-25°F(1983)
Illinois State RecordsSee all-time records for the entire state
Chicago Snow RecordsSee the top 10 snowiest days ever recorded