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 100°F on 1995-07-14; its coldest fell to -23°F on 1994-01-19.
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 | 62°F2008-01-07
-9°F1985-01-20
|
52°F2008-01-07
-23°F1994-01-19
|
| February | 69°F2024-02-27
-1°F1996-02-03
|
53°F2000-02-26
-14°F1996-02-03
|
| March | 78°F2012-03-21
12°F2002-03-04
|
63°F1998-03-30
-7°F2002-03-04
|
| April | 84°F1986-04-26
29°F1982-04-06
|
67°F2002-04-17
15°F1982-04-07
|
| May | 93°F2012-05-27
45°F1981-05-11
|
76°F2012-05-28
30°F2020-05-09
|
| June | 100°F1988-06-25
55°F2001-06-04
|
80°F1988-06-25
42°F2003-06-01
|
| July | 100°F1995-07-14
65°F2015-07-08
|
83°F1980-07-15
53°F2015-07-02
|
| August | 98°F1988-08-17
61°F2004-08-12
|
80°F2006-08-02
48°F1986-08-28
|
| September | 94°F2013-09-10
51°F1984-09-27
|
79°F2011-09-02
35°F1995-09-23
|
| October | 87°F2007-10-07
37°F2023-10-31
|
72°F2019-10-01
24°F1981-10-24
|
| November | 74°F2016-11-01
20°F2014-11-18
|
65°F2020-11-10
6°F2019-11-13
|
| December | 66°F2012-12-03
-9°F1983-12-24
|
58°F2001-12-05
-20°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) | 69°F2024-02-27
-9°F1983-12-24
|
58°F2001-12-05
-23°F1994-01-19
|
| Spring (Mar–May) | 93°F2012-05-27
12°F2002-03-04
|
76°F2012-05-28
-7°F2002-03-04
|
| Summer (Jun–Aug) | 100°F1995-07-14
55°F2001-06-04
|
83°F1980-07-15
42°F2003-06-01
|
| Autumn (Sep–Nov) | 94°F2013-09-10
20°F2014-11-18
|
79°F2011-09-02
6°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.