St. Louis, Missouri, United States weather records
Record high and low temperatures for St. Louis, Missouri, 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 109°F on 2012-07-24; its coldest fell to -18°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 | 70°F2023-01-03
-4°F1982-01-10
|
57°F2008-01-07
-18°F1982-01-10
|
| February | 80°F2024-02-27
7°F2021-02-15
|
57°F1996-02-26
-17°F1982-02-10
|
| March | 88°F2026-03-22
22°F1998-03-11
|
64°F2012-03-21
6°F1998-03-12
|
| April | 88°F1981-04-27
36°F2007-04-06
|
67°F1989-04-25
21°F2007-04-07
|
| May | 92°F2012-05-26
49°F1995-05-01
|
72°F2011-05-31
33°F1983-05-09
|
| June | 108°F2012-06-28
61°F2003-06-02
|
78°F2009-06-23
44°F1988-06-10
|
| July | 109°F2012-07-24
66°F2013-07-02
|
83°F2012-07-25
52°F1983-07-07
|
| August | 106°F1984-08-29
70°F2004-08-12
|
79°F2010-08-10
47°F1986-08-29
|
| September | 102°F1990-09-06
54°F2000-09-25
|
74°F2012-09-01
33°F1995-09-23
|
| October | 93°F2006-10-03
37°F2019-10-31
|
70°F1986-10-03
22°F1981-10-24
|
| November | 83°F2023-11-08
25°F1986-11-13
|
63°F2024-11-04
6°F1996-11-27
|
| December | 74°F2025-12-28
-7°F1983-12-24
|
62°F1982-12-02
-16°F1989-12-22
|
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) | 80°F2024-02-27
-7°F1983-12-24
|
62°F1982-12-02
-18°F1982-01-10
|
| Spring (Mar–May) | 92°F2012-05-26
22°F1998-03-11
|
72°F2011-05-31
6°F1998-03-12
|
| Summer (Jun–Aug) | 109°F2012-07-24
61°F2003-06-02
|
83°F2012-07-25
44°F1988-06-10
|
| Autumn (Sep–Nov) | 102°F1990-09-06
25°F1986-11-13
|
74°F2012-09-01
6°F1996-11-27
|
All-time records
The most extreme value St. Louis 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.