San Antonio weather records
Record high and low temperatures for San Antonio, 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 110°F on 2011-08-28; its coldest fell to 8°F on 1989-12-23.
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 | 88°F2026-01-02
28°F1997-01-13
|
69°F2013-01-29
15°F1982-01-11
|
| February | 99°F1996-02-21
25°F1985-02-01
|
69°F2021-02-28
10°F2021-02-15
|
| March | 96°F1991-03-06
43°F1980-03-02
|
71°F2024-03-15
21°F1980-03-02
|
| April | 98°F1996-04-19
48°F2007-04-08
|
75°F2017-04-29
33°F1987-04-03
|
| May | 101°F1989-05-25
64°F1994-05-01
|
78°F2024-05-22
44°F2013-05-04
|
| June | 107°F2013-06-29
74°F1987-06-04
|
80°F2024-06-04
56°F1984-06-01
|
| July | 106°F2018-07-23
77°F1990-07-16
|
81°F2018-07-24
62°F1985-07-01
|
| August | 110°F2011-08-28
75°F2017-08-27
|
81°F2020-08-31
64°F1992-08-29
|
| September | 108°F2000-09-05
63°F1984-09-29
|
81°F2020-09-01
47°F1981-09-19
|
| October | 98°F2020-10-11
44°F2000-10-09
|
78°F2009-10-08
28°F1993-10-31
|
| November | 92°F1988-11-04
41°F2013-11-25
|
74°F2024-11-04
25°F2018-11-14
|
| December | 84°F2024-12-30
28°F1983-12-25
|
71°F1982-12-02
8°F1989-12-23
|
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) | 99°F1996-02-21
25°F1985-02-01
|
71°F1982-12-02
8°F1989-12-23
|
| Spring (Mar–May) | 101°F1989-05-25
43°F1980-03-02
|
78°F2024-05-22
21°F1980-03-02
|
| Summer (Jun–Aug) | 110°F2011-08-28
74°F1987-06-04
|
81°F2020-08-31
56°F1984-06-01
|
| Autumn (Sep–Nov) | 108°F2000-09-05
41°F2013-11-25
|
81°F2020-09-01
25°F2018-11-14
|
All-time records
The most extreme value San Antonio 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.