Climate for Chicago, Illinois

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Average Temperatures for Chicago

Average Temperature for Chicago, Illinois
MonthLowHigh
Jan14.3°F29.6°F
Feb19.2°F34.7°F
Mar28.5°F46.1°F
Apr37.6°F58.0°F
May47.5°F69.9°F
Jun57.2°F79.2°F
Jul63.2°F83.5°F
Aug62.2°F81.2°F
Sept53.7°F73.9°F
Oct42.1°F62.1°F
Nov31.6°F47.1°F
Dec20.4°F34.4°F

Chicago's coldest month is January when the average temperature overnight is 14.3°F. In July, the warmest month, the average day time temperature rises to 83.5°F.

Average Rainfall for Chicago

Average Rainfall for Chicago, Illinois
MonthPrecipitation
Jan1.75in.
Feb1.63in.
Mar2.65in.
Apr3.68in.
May3.38in.
Jun3.63in.
Jul3.51in.
Aug4.62in.
Sept3.27in.
Oct2.71in.
Nov3.01in.
Dec2.43in.

The driest month in Chicago is February with 1.63 inches of precipitation, and with 4.62 inches August is the wettest month.

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