San Antonio, TX: records

4 October 2026: The hottest day on record in San Antonio, TX: 111°F on Tuesday 5 September 2000.

The record begins: 1885

All-time records

Hottest day: 111°F; 5 September 2000
Coldest night: 0°F; 31 January 1949
Wettest day: 11.26 in; 17 October 1998
Warmest night: 82°F; 21 August 2023, 11 July 2022, 29 August 2011, 28 August 2011, 11 August 2011, 5 August 1980
Coldest day: 23°F; 22 December 1989, 30 January 1951

Daily records by decade

New daily records set in San Antonio, TX by decade since the 1910s: the most record highs, 92, came in the 1920s; the most record lows, 71, in the 1970s.

Record highs
Record lows

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1880s	0	0	5
1890s	0	0	10
1900s	0	0	10
1910s	50	48	10
1920s	92	48	10
1930s	72	44	10
1940s	62	62	10
1950s	45	53	10
1960s	33	63	10
1970s	26	71	10
1980s	48	46	10
1990s	44	20	10
2000s	41	9	10
2010s	46	10	10
2020s	60	8	7

Records by month

Month	Highest	Lowest	Wettest day
January	89°F 2 January 2026, 30 January 1971	0°F 31 January 1949	2.94 in 25 January 2012
February	100°F 21 February 1996	4°F 12 February 1899	2.63 in 23 February 1912
March	100°F 6 March 1991, 28 March 1971	19°F 4 March 2002, 2 March 1980	3.51 in 28 March 2018
April	101°F 19 April 1996	31°F 3 April 1987	6.78 in 18 April 1915
May	104°F 31 May 2004	42°F 4 May 2013	9.87 in 25 May 2013
June	108°F 29 June 2013	48°F 3 June 1919	6.18 in 3 June 1951
July	107°F 11 July 2022, 13 July 2020	60°F 11 July 1905	9.52 in 1 July 2002
August	110°F 28 August 2011	57°F 24 August 1891	5.73 in 16 August 2007
September	111°F 5 September 2000	41°F 27 September 1942	6.83 in 9 September 1921
October	99°F 12 October 1991, 7 October 1937	27°F 31 October 1993	11.26 in 17 October 1998
November	94°F 4 November 1988	21°F 29 November 1976	4.87 in 1 November 1977
December	90°F 25 December 1955	6°F 23 December 1989	5.97 in 19 December 1991

Streaks, months and years

Longest heat streak	119 days	8 June to 4 October 2023	A high of 90°F or above
Longest cold streak	4 days	13 February to 16 February 2021	A high of 32°F or below
Wettest month	18.07 in	October 1998
Driest month	0.00 in	August 1952	and 2 more
Wettest year	52.28 in	1973
Driest year	10.11 in	1917

Every record in words

The coldest night on record in San Antonio, TX: a low of 0°F on Monday 31 January 1949.
The wettest day on record in San Antonio, TX: 11.26 in on Saturday 17 October 1998.
The warmest night on record in San Antonio, TX: a low of 82°F on Monday 21 August 2023, Monday 11 July 2022, Monday 29 August 2011 and 3 other days.
The coldest day on record in San Antonio, TX: a high of 23°F on Friday 22 December 1989 and Tuesday 30 January 1951.
The longest run of days with a high of 90°F or above in San Antonio, TX: 119 days, from Thursday 8 June to Wednesday 4 October 2023.
The longest run of days with a high of 32°F or below in San Antonio, TX: 4 days, from Saturday 13 February to Tuesday 16 February 2021.
The wettest month on record in San Antonio, TX: October 1998, with 18.07 in of precipitation.
The driest month on record in San Antonio, TX: August 1952, with 0.00 in of precipitation (shared with 2 other months).
The wettest year on record in San Antonio, TX: 1973, with 52.28 in of precipitation.
The driest year on record in San Antonio, TX: 1917, with 10.11 in of precipitation.

San Antonio, TX the day's answers