Chicago weather records
Record high and low temperatures for Chicago, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 102°F on 1988-06-25; its coldest fell to -28°F on 2019-01-31.
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 | 65°F2008-01-07
-10°F1985-01-20
|
53°F2008-01-07
-28°F2019-01-31
|
| February | 74°F2024-02-27
0°F1996-02-03
|
56°F2000-02-26
-17°F1994-02-01
|
| March | 84°F2012-03-21
11°F2002-03-04
|
66°F1998-03-30
-10°F2002-03-04
|
| April | 89°F1980-04-22
29°F1982-04-06
|
69°F2002-04-17
9°F1982-04-07
|
| May | 94°F2012-05-27
45°F2026-05-01
|
75°F2012-05-28
29°F2020-05-09
|
| June | 102°F1988-06-25
56°F2001-06-04
|
80°F1988-06-25
39°F1993-06-01
|
| July | 101°F2012-07-06
65°F2009-07-01
|
83°F1980-07-15
51°F1982-07-01
|
| August | 99°F1988-08-17
61°F2004-08-12
|
80°F2023-08-24
44°F1986-08-28
|
| September | 96°F2013-09-10
51°F1995-09-22
|
79°F2026-09-02
31°F1984-09-30
|
| October | 88°F2007-10-07
35°F2023-10-31
|
72°F2019-10-01
20°F1981-10-24
|
| November | 77°F2016-11-01
18°F2014-11-18
|
66°F2020-11-10
2°F2019-11-13
|
| December | 68°F2012-12-03
-10°F1983-12-24
|
58°F2001-12-05
-22°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) | 74°F2024-02-27
-10°F1983-12-24
|
58°F2001-12-05
-28°F2019-01-31
|
| Spring (Mar–May) | 94°F2012-05-27
11°F2002-03-04
|
75°F2012-05-28
-10°F2002-03-04
|
| Summer (Jun–Aug) | 102°F1988-06-25
56°F2001-06-04
|
83°F1980-07-15
39°F1993-06-01
|
| Autumn (Sep–Nov) | 96°F2013-09-10
18°F2014-11-18
|
79°F2026-09-02
2°F2019-11-13
|
All-time records
The most extreme value Chicago has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Gust
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.