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Chicago, IL Weather


Chicago, IL climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 20's.

The warmest month of the year is July with an average maximum temperature of 84.40 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 18.30 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 18 degrees Fahrenheit, and fairly limited during winter with an average difference of 14 degrees Fahrenheit.

The annual average precipitation at Chicago is 38.01 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 4.30 Inches.

Weather Data

Moon, Sunrise and Sunset

Waxing Crescent Moon Moon Phase: Waxing Crescent Moon Civil Twilight:
6:16 AM CST
Sunrise:
6:47 AM CST
Sunset:
4:24 PM CST
Civil Twilight:
4:55 PM CST

Normal Climate

Normal Temperatures

(CHICAGO UNIVERSITY Weather station, 5.48 miles from Chicago)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 32.2 37.4 47.4 58.9 70.2 80.3 84.4 82.7 76.2 64.3 49.4 37.1 60.0
Mean °F 25.3 30.7 39.8 50.2 60.8 70.6 75.4 74.0 66.8 55.3 42.3 30.3 51.8
Min °F 18.3 23.9 32.2 41.5 51.3 60.8 66.3 65.3 57.4 46.2 35.1 23.5 43.5

Normal Precipitation

(CHICAGO UNIVERSITY Weather station, 5.48 miles from Chicago)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 2.17 1.77 3.01 3.65 3.70 4.30 3.68 3.86 3.21 2.71 3.32 2.63 38.01