If you are looking for fresh snow by Christmas morning or are curious about potential travel disruptions, the best chances for at least 1" of new snowfall early this week exist across the mountainous West, Great Lakes, and Northeast. Otherwise, temperatures this last full week of December will average above normal for much of the lower 48 states. Read More >
Chicago, IL
Weather Forecast Office
Last Updated: 7/13/2020
| Temperature (in degrees Fahrenheit) | |
| Highest Temperature | 112 degrees on July 14, 1936 |
| Lowest Temperature | -31 degrees on January 31, 2019 |
| Warmest Month | 80.6 degrees in August 1921 |
| Coldest Month | 4.7 degrees in January 1912 |
| Warmest Season | 76.1 degrees in Summer of 1921 |
| Coldest Season | 14.1 degrees in Winter of 1978-79 |
| Warmest Year | 52.8 degrees in 1921 and 1931 |
| Coldest Year | 44.9 degrees in 1917 |
| Highest Dew Point | Missing for now |
| Precipitation (in inches) | |
| Wettest Year | 56.48 in 1973 |
| Driest Year | 22.87 in 1910 |
| Wettest Season | 25.76 Summer (Jun – Aug) of 1972 |
| Driest Season | 1.28 Winter (Dec – Feb) of 2002 - 2003 |
| Wettest Month | 14.23 in June 2018 |
| Driest Month | 0.01 in October 1952 |
| Greatest in 24 Hours | 7.43 on July 17 – 18, 1996 |
| Greatest Calendar Day | 5.70 on August 15, 1987 |
| Snowfall (in inches) | |
| Seasonal (Jul – Jun) Greatest | 74.5 in 1978 - 1979 |
| Seasonal (Jul – Jun) Least | 2.8 in 1906 - 1907 |
| Winter (Dec – Feb) Greatest | 65.1 in 2007 – 2008 |
| Winter (Dec – Feb) Least | 1.3 in 1906 - 1907 |
| Greatest Total: | |
| Month | 36.1 in January, 1918 |
| Storm | 16.3 on January 6 – 7, 1918 |
| 24 Hours | 16.3 on January 6 – 7, 1918 |
| Calendar Day | 13.5 on March 31, 1926 |
| Snow Depth | 27 inches in January 1979 |
| Pressure (in inches of Mercury) | |
| Highest | 30.98 on Feb 16, 1989 and Feb 1, 1979 |
| Lowest | 28.78 on April 3, 1982 |
| Wind (in mph) | |
| Highest Gust | Missing for now |
| Coldest Wind Chill | -72 on January 20, 1985 |
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Chicago, IL
333 West University Drive
Romeoville, IL 60446
815-834-1435 8am-8pm
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