Chicago, IL — Best Months Card
Best months for Chicago: September.
JAN
33°F
Rain 8 days
Daylight 9h 27mFEB
37°F
Rain 8 days
Daylight 10h 31mMAR
48°F
Rain 10 days
Daylight 11h 48mAPR
60°F
Rain 12 days
Daylight 13h 17mMAY
71°F
Rain 13 days
Daylight 14h 31mJUN
81°F
Rain 12 days
Daylight 15h 12mJUL
85°F
Rain 10 days
Daylight 14h 56mAUG
83°F
Rain 10 days
Daylight 13h 52mSEP
76°F
★ Best
Rain 9 days
Daylight 12h 26mOCT
63°F
Rain 12 days
Daylight 11h 00mNOV
49°F
Rain 9 days
Daylight 9h 45mDEC
38°F
Rain 10 days
Daylight 9h 09m
33°F
Rain 8 days
Daylight 9h 27mFEB
37°F
Rain 8 days
Daylight 10h 31mMAR
48°F
Rain 10 days
Daylight 11h 48mAPR
60°F
Rain 12 days
Daylight 13h 17mMAY
71°F
Rain 13 days
Daylight 14h 31mJUN
81°F
Rain 12 days
Daylight 15h 12mJUL
85°F
Rain 10 days
Daylight 14h 56mAUG
83°F
Rain 10 days
Daylight 13h 52mSEP
76°F
★ Best
Rain 9 days
Daylight 12h 26mOCT
63°F
Rain 12 days
Daylight 11h 00mNOV
49°F
Rain 9 days
Daylight 9h 45mDEC
38°F
Rain 10 days
Daylight 9h 09m
Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month. Weather station used: CHICAGO MIDWAY AP, IL US (NOAA station USW00014819), about 9 miles from central Chicago, at 612 ft elevation. All figures on this page are that station's 1991–2020 normals.
Monthly weather summaries are historical averages for trip planning only — they are not forecasts, and the weather in any given month will differ.