Number of Days of 100 °F in San Antonio by Year

This page contains a list of the number of days in each year that the high temperature equaled or exceeded 100 degrees Fahrenheit in San Antonio, Texas, between 1893 and 2024.

Also see:

Which year had the most 100° days?

Based on NOAA records, the year 2023 holds the record for the most 100 °F days in San Antonio history. There were 75 days with a high temperature of at least 100 degrees that year.

How many so far this year (2024)?

It has not reached 100 degrees Fahrenheit in San Antonio so far in 2024. As of April 26, the highest temperature this year is 91 °F.

The last time it reached at least 100° F was September 24, 2023.

Years marked with a gold background have more than 5% incomplete data
Click column headers to sort

Year	Rank	Days >= 100 °F
2024	101	0
2023	1	75
2022	3	58
2021	83	3
2020	12	36
2019	42	17
2018	25	27
2017	47	15
2016	75	6
2015	53	12
2014	45	16
2013	7	41
2012	35	20
2011	4	57
2010	71	7
2009	2	59
2008	67	8
2007	101	0
2006	20	29
2005	53	12
2004	94	1
2003	83	3
2002	89	2
2001	53	12
2000	32	22
1999	66	9
1998	12	36
1997	71	7
1996	29	25
1995	62	10
1994	20	29
1993	83	3
1992	94	1
1991	62	10
1990	50	14
1989	23	28
1988	75	6
1987	94	1
1986	53	12
1985	83	3
1984	67	8
1983	94	1
1982	62	10
1981	89	2
1980	17	31
1979	101	0
1978	89	2
1977	101	0
1976	101	0
1975	101	0
1974	101	0
1973	101	0
1972	101	0
1971	81	4
1970	94	1
1969	42	17
1968	101	0
1967	35	20
1966	101	0
1965	101	0
1964	47	15
1963	77	5
1962	27	26
1961	94	1
1960	67	8
1959	77	5
1958	89	2
1957	53	12
1956	50	14
1955	77	5
1954	35	20
1953	32	22
1952	52	13
1951	16	32
1950	101	0
1949	89	2
1948	15	33
1947	45	16
1946	101	0
1945	101	0
1944	101	0
1943	101	0
1942	101	0
1941	101	0
1940	101	0
1939	101	0
1938	101	0
1937	101	0
1936	101	0
1935	81	4
1934	20	29
1933	39	18
1932	30	24
1931	101	0
1930	27	26
1929	71	7
1928	9	39
1927	23	28
1926	39	18
1925	8	40
1924	38	19
1923	39	18
1922	42	17
1921	34	21
1920	94	1
1919	101	0
1918	12	36
1917	18	30
1916	53	12
1915	101	0
1914	47	15
1913	60	11
1912	10	37
1911	5	48
1910	101	0
1909	31	23
1908	53	12
1907	6	42
1906	101	0
1905	10	37
1904	18	30
1903	101	0
1902	101	0
1901	101	0
1900	83	3
1899	25	27
1898	67	8
1897	60	11
1896	62	10
1895	71	7
1894	83	3
1893	77	5

Weather Station Details

Years	Station	Coordinates
1947–2024	San Antonio International Airport	location
1893–1946	San Antonio Nursery	location