Chicago, Illinois, United States weather records
Record high and low temperatures for Chicago, Illinois, United States, by month, by season, and all-time, with the dates they occurred, across 1981–2026 of daily climate history. Its hottest day on record reached 94°F on 2012-07-06; its coldest fell to -19°F on 1982-01-10.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | 54°F2000-01-02
-6°F1994-01-18
|
43°F2007-01-05
-19°F1982-01-10
|
| February | 59°F1999-02-11
1°F1996-02-02
|
44°F2024-02-27
-5°F1996-02-02
|
| March | 70°F2012-03-22
12°F2019-03-04
|
55°F2012-03-20
1°F2015-03-06
|
| April | 73°F2002-04-17
29°F1995-04-04
|
56°F2002-04-17
21°F1995-04-04
|
| May | 84°F2018-05-27
39°F1989-05-06
|
66°F2018-05-30
32°F1989-05-06
|
| June | 87°F2012-06-28
47°F1982-06-03
|
74°F2025-06-26
39°F2003-06-01
|
| July | 94°F2012-07-06
60°F1996-07-03
|
79°F1999-07-30
53°F1982-07-01
|
| August | 91°F1988-08-16
60°F1994-08-09
|
79°F2006-08-02
50°F1986-08-28
|
| September | 87°F2011-09-01
50°F1984-09-26
|
76°F2011-09-02
41°F1985-09-24
|
| October | 83°F2025-10-03
39°F1988-10-30
|
69°F2007-10-07
30°F1981-10-24
|
| November | 68°F2016-11-01
22°F1986-11-13
|
60°F2024-11-04
15°F1986-11-13
|
| December | 62°F2001-12-05
-2°F1983-12-24
|
53°F2015-12-13
-14°F1983-12-24
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 62°F2001-12-05
-6°F1994-01-18
|
53°F2015-12-13
-19°F1982-01-10
|
| Spring (Mar–May) | 84°F2018-05-27
12°F2019-03-04
|
66°F2018-05-30
1°F2015-03-06
|
| Summer (Jun–Aug) | 94°F2012-07-06
47°F1982-06-03
|
79°F1999-07-30
39°F2003-06-01
|
| Autumn (Sep–Nov) | 87°F2011-09-01
22°F1986-11-13
|
76°F2011-09-02
15°F1986-11-13
|
All-time records
The most extreme value Chicago has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.