San Antonio, TX: December

31 December 2025: December 2025 averaged 59.3°F in San Antonio, TX, the warmest December since 2024, 8th warmest of 141.

December 2025

Mean temperature: 59.3°F; Warmest since 2024; 8th warmest of 141
Precipitation: 0.30 in; Driest since 2008; 20th driest of 141

A normal December in San Antonio, TX (1991 to 2020): a mean temperature of 54.2°F, between 51.9°F and 56.7°F in eight years of ten and 1.36 in of precipitation, between 0.24 in and 3.60 in in eight years of ten.

The mean temperature of every December in San Antonio, TX since 1885: 59.3°F in 2025; the highest is 66°F, in 1889.

Normal range, 51.9 to 56.7°F

Every year, ranked, as a table

Every December in San Antonio, TX from 1885 to 2025, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank
2025	59.3	8	69.4	11	49.2	8	0.30	121
2024	60.9	4	70.4	6	51.3	4	0.57	104
2023	57.1	17	68.4	21	45.7	34	1.11	77
2022	55.4	43	65.3	59	45.5	37	0.47	109
2021	64.2	2	74.1	1	54.3	2	0.90	86
2020	54.5	61	68.5	17	40.5	108	0.81	90
2019	55.5	39	68.5	17	42.4	85	0.52	107
2018	53.7	77	64.2	83	43.3	69	2.35	36
2017	52.9	92	62.7	100	43	73	4.04	12
2016	55.8	33	63.8	86	47.8	15	6.22	3
2015	58.2	14	70	9	46.4	26	1.48	62
2014	56.7	22	64.5	77	48.9	10	1.24	72
2013	52.1	101	62.7	100	41.5	96	0.55	105
2012	57.1	17	68.8	14	45.4	41	0.37	117
2011	53.8	74	63.1	95	44.6	47	2.84	25
2010	53.8	74	66.3	42	41.4	98	0.63	102
2009	48.3	134	57.4	135	39.2	122	1.92	47
2008	55	52	67.8	26	42.2	87	0.25	124
2007	56.1	29	69.5	10	42.7	78	0.40	113
2006	54.4	65	64.7	73	44	54	2.44	33
2005	53	89	66.1	46	39.9	116	0.10	135
2004	53.1	87	65.3	59	41	103	0.08	138
2003	53.9	73	67.1	38	40.6	107	0.11	134
2002	53.8	74	64.7	73	42.9	76	2.53	30
2001	53.7	77	64.4	79	43.1	72	3.43	16
2000	46.4	137	55.8	138	36.9	137	1.57	56
1999	54	71	67.8	26	40.1	114	0.52	107
1998	52.7	95	62.8	98	42.6	83	0.39	114
1997	50.2	121	63.1	95	37.3	135	3.55	15
1996	54.5	61	66.3	42	42.7	78	1.56	58
1995	55.6	37	65.5	56	45.7	34	0.64	100
1994	56.9	19	67.7	28	46.2	28	3.28	19
1993	55	52	66.1	46	44	54	0.44	110
1992	56.2	28	66.1	46	46.4	26	2.16	43
1991	55.5	39	63.5	89	47.5	17	13.96	1
1990	51.9	105	64.4	79	39.4	121	0.20	127
1989	43.4	140	55.2	139	31.5	141	0.36	118
1988	56	30	67.6	33	44.4	50	0.67	97
1987	54.2	67	65.1	62	43.2	70	2.18	42
1986	51.6	108	59.8	121	43.4	66	7.11	2
1985	49.9	126	61.8	108	38	130	0.09	137
1984	59.6	7	68.5	17	50.6	5	3.41	17
1983	43	141	54.1	140	31.9	140	0.39	114
1982	52.4	98	62.7	100	42.1	89	2.31	37
1981	53	89	66.1	46	39.8	118	0.69	96
1980	55	52	66.1	46	43.8	59	0.61	103
1979	55.3	46	67.7	28	43	73	2.86	22
1978	51.7	106	62.6	103	40.8	104	1.09	79
1977	53.3	85	66.5	41	40.2	112	0.32	120
1976	49.8	128	61.4	113	38.3	128	1.95	46
1975	53	89	66.1	46	40	115	1.48	62
1974	50.9	114	61.8	108	39.9	116	1.43	65
1973	52.1	101	67.6	33	36.7	138	0.16	129
1972	50.2	121	63.1	95	37.4	134	0.44	110
1971	57.2	16	67.4	36	46.9	23	2.86	22
1970	60.1	5	71.7	4	48.5	12	0.15	131
1969	55.1	48	67.7	28	42.5	84	2.28	40
1968	50.7	116	63.3	94	38.1	129	0.66	98
1967	51	112	61.5	112	40.5	108	1.38	67
1966	50.6	117	64.2	83	37.1	136	0.44	110
1965	55.5	39	65.2	61	45.8	31	4.51	6
1964	52.2	100	64.3	81	40.2	112	1.22	74
1963	45.6	139	55.9	137	35.4	139	0.94	84
1962	52.1	101	62.1	106	42.2	87	2.29	39
1961	54.2	67	64	85	44.3	52	0.70	94
1960	50.1	124	58.8	128	41.4	98	2.97	20
1959	54	71	65	66	43	73	1.52	61
1958	50.1	124	61.2	116	39	123	1.07	80
1957	55.4	43	67.5	35	43.4	66	0.92	85
1956	56.9	19	69.4	11	44.4	50	1.10	78
1955	53.4	84	66.1	46	40.8	104	0.66	98
1954	58.3	12	70.6	5	45.9	30	0.20	127
1953	49.3	131	60.2	119	38.5	126	1.44	64
1952	51.6	108	61.8	108	41.3	101	3.67	13
1951	55.2	47	67.7	28	42.7	78	0.13	133
1950	52.7	95	67.9	24	37.5	133	0.03	140
1949	55.8	33	64.3	81	47.4	21	2.79	26
1948	55.8	33	68.5	17	43.2	70	0.23	125
1947	53.5	80	65	66	41.9	93	1.90	48
1946	55.8	33	67.2	37	44.5	48	2.43	34
1945	50.8	115	62.8	98	38.9	125	1.18	76
1944	48.9	132	59.3	125	38.5	126	4.16	10
1943	50.5	118	61.3	114	39.7	119	1.20	75
1942	55.1	48	68.7	15	41.4	98	0.64	100
1941	54.9	56	65	66	44.8	45	0.97	83
1940	56.7	22	65	66	48.5	12	2.85	24
1939	58.8	10	70.4	6	47.2	22	0.89	87
1938	55.9	32	66.2	44	45.5	37	1.24	72
1937	52.9	92	59.2	126	46.5	25	6.22	3
1936	56.5	26	65.4	58	47.5	17	1.75	51
1935	52	104	59.5	123	44.5	48	1.86	49
1934	56	30	64.5	77	47.5	17	4.17	9
1933	62.5	3	73.5	3	51.5	3	0.39	114
1932	50.2	121	58.4	129	42.1	89	1.01	82
1931	55.1	48	63.4	91	46.9	23	2.79	26
1930	51	112	59.6	122	42.3	86	0.88	88
1929	54.5	61	64.9	72	44	54	2.08	44
1928	53.5	80	63.4	91	43.6	62	2.95	21
1927	50.4	119	58.1	131	42.7	78	2.49	32
1926	54.5	61	63.4	91	45.5	37	2.24	41
1925	49.7	129	59.1	127	40.3	110	1.29	71
1924	52.7	95	61.7	111	43.6	62	2.31	37
1923	55.6	37	62.1	106	49.1	9	4.29	8
1922	59.7	6	69.4	11	49.9	6	0.10	135
1921	59	9	70.3	8	47.6	16	0.23	125
1920	54.7	57	65.8	54	43.6	62	0.16	129
1919	51.7	106	61.3	114	42.1	89	2.05	45
1918	54.7	57	63.6	88	45.8	31	3.61	14
1917	50.4	119	60.1	120	40.7	106	trace	141
1916	54.7	57	65.9	53	43.4	66	0.33	119
1915	56.8	21	67.7	28	45.8	31	1.57	56
1914	46.3	138	53	141	39.6	120	1.43	65
1913	52.4	98	59.5	123	45.3	42	4.47	7
1912	49.9	126	58	132	41.7	95	2.76	28
1911	51.6	108	60.5	118	42.7	78	1.35	69
1910	55.4	43	65.1	62	45.6	36	1.69	52
1909	47.8	135	57.9	134	37.7	132	1.38	67
1908	56.6	25	65.7	55	47.5	17	1.61	53
1907	54.6	60	64.6	76	44.7	46	0.80	91
1906	58.2	14	67.1	38	49.4	7	1.60	54
1905	48.5	133	58	132	39	123	1.56	58
1904	52.8	94	63.5	89	42	92	1.06	81
1903	54.2	67	64.7	73	43.7	60	0.82	89
1902	53.1	87	62.4	104	43.9	57	2.51	31
1901	53.5	80	66.7	40	40.3	110	0.15	131
1900	54.1	70	65.5	56	42.8	77	0.70	94
1899	53.7	77	63.8	86	43.5	65	3.39	18
1898	47.4	136	56.9	136	37.9	131	1.54	60
1897	51.1	111	60.7	117	41.5	96	1.34	70
1896	56.5	26	68	23	45	44	0.74	93
1895	54.4	65	65	66	43.7	60	0.55	105
1894	58.3	12	68.4	21	48.2	14	0.04	139
1893	58.8	10	68.6	16	48.9	10	0.76	92
1892	53.2	86	62.3	105	44.1	53	4.16	10
1891	55.1	48	65.1	62	45.1	43	5.73	5
1890	56.7	22	67.9	24	45.5	37	1.58	55
1889	66	1	74	2	58.1	1	0.27	123
1888	55.5	39	65	66	46.1	29	2.40	35
1887	49.7	129	58.3	130	41.1	102	2.58	29
1886	53.5	80	65.1	62	41.8	94	0.30	121
1885	55	52	66.2	44	43.9	57	1.78	50

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1889	66
2021	64.2
1933	62.5
2024	60.9
1970	60.1
1922	59.7
1984	59.6
2025	59.3
1921	59
1939	58.8
More years share the last value

Coldest
Year	Mean, °F
1983	43
1989	43.4
1963	45.6
1914	46.3
2000	46.4
1898	47.4
1909	47.8
2009	48.3
1905	48.5
1944	48.9

Wettest
Year	Precipitation, in
1991	13.96
1986	7.11
2016	6.22
1937	6.22
1891	5.73
1965	4.51
1913	4.47
1923	4.29
1934	4.17
1944	4.16
More years share the last value

Driest
Year	Precipitation, in
1917	trace
1950	0.03
1894	0.04
2004	0.08
1985	0.09
2005	0.10
1922	0.10
2003	0.11
1951	0.13
1970	0.15
More years share the last value

The hottest, coldest and wettest days

Hottest day: 81°F; 26 December 2025
Coldest night: 34°F; 9 December 2025
Wettest day: 0.15 in; 17 December 2025

Every month, season and year

Months

Seasons

Years

San Antonio, TX the day's answers

All-time records

Every answer in words

December 2025 brought 0.30 in of precipitation in San Antonio, TX, the driest December since 2008, tied 20th driest of 141 (with 1886).
The hottest day of December 2025 in San Antonio, TX: 81°F on Friday 26 December 2025.
The coldest night of December 2025 in San Antonio, TX: a low of 34°F on Tuesday 9 December 2025.
The wettest day of December 2025 in San Antonio, TX: 0.15 in on Wednesday 17 December 2025.