El Cajon, CA: December

31 December 2025: December 2025 averaged 59.8°F in El Cajon, CA, the warmest December on record, in 112 years since 1899 (1911 excluded: 8 of 31 days missing; 1912 excluded: 9 of 31 days missing; 1934 excluded: 5 of 31 days missing; 12 more years excluded for missing days); provisional.

December 2025

Mean temperature: 59.8°F; Warmest on record; Warmest of 112, provisional
Precipitation: 1.63 in; Wettest since 2022; 59th wettest of 121

A normal December in El Cajon, CA (1991 to 2020): 1.37 in of precipitation, between 0.27 in and 3.98 in in eight years of ten.

The mean temperature of every December in El Cajon, CA since 1899: 59.8°F in 2025, the highest of them all.

Every year, ranked, as a table

Every December in El Cajon, CA from 1899 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	Days missing
2025	59.8	1	73.8	16	45.7	3	1.63	59	0
2024	57.1	17	71.6	30	42.6	19	0.07	114	0
2023	57.8	12	71.5	31	44	11	0.67	88	0
2022	54.7	50	66.5	90	42.9	15	1.73	56	0
2021	55	40	65	104	45	6	4.24	18	0
2020	56.5	22	71.5	31	41.5	32	0.89	78	0
2019	55.7	34	66.7	87	44.7	7	4.30	17	0
2018	56.9	21	69.3	55	44.5	9	3.20	24	0
2017	58.7	5	76.6	6	40.8	39	0.05	116	0
2016	57.4	15	69.1	61	45.7	3	3.76	21	0
2015	54.5	54	68.3	73	40.8	39	1.45	62	0
2014	58.6	6	69.1	61	48.2	2	2.84	31	0
2013	55.7	34	70.3	41	41	35	0.66	89	0
2012	55.3	38	65.4	103	45.2	5	2.61	36	0
2011	52.7	82	67.6	82	37.9	79	0.98	75	0
2010	56.1	27	68.2	76	44	11	7.85	2	0
2009	55	40	68.3	73	41.8	28	3.01	27	0
2008	56	28	68.2	76	43.8	13	5.38	7	1
2007	54.2	59	68.6	66	40.2	47	1.91	50	1
2006	56.2	25	73	19	39.5	57	0.95	76	2
2005	58.3	8	72.5	20	44.1	10	0.35	99	0
2004	56.3	24	69.3	55	42.2	23	3.28	23	3
2003							0.59	91	7
2002									4
2001							0.32	102	8
2000	58.1	10	74.1	14	42	25	0.01	118	3
1999							0.20	105	5
1996					42.8	17	1.37	65	5
1995	57.1	17	71.5	31	42.8	17	0.76	84	0
1994	54	65	66.4	93	41.6	29	0.37	97	0
1993	55	40	69.6	49	40.8	39	0.63	90	2
1992					39.7	54	1.89	51	4
1991	55.4	37	67.6	82	42.9	15	1.94	49	3
1990	52.6	83	68.2	76	38	76	0.86	81	3
1989					38.7	67	0.18	106	8
1988	54.2	59	67	85	41.5	32	1.29	68	2
1987	50.4	107	62.9	112	38.4	68	2.00	48	3
1986	54.7	50	68.8	64	41	35	2.39	40	3
1985	55.8	31	70.2	43	41.5	32	1.74	55	0
1984					41.9	26	5.32	8	7
1983	55.1	39	67.7	80	42.3	21	1.84	52	1
1981	57	19	72.5	20	41.6	29	0.71	85	1
1980	58.8	4	75.6	9	41.9	26	0.43	95	2
1979	57	19	74.2	13	39.9	51	0.08	112	0
1978	50.4	107	64.2	108	36.5	93	2.15	45	0
1977	59.2	2	70	46	48.3	1	2.34	41	3
1976	53.7	70	71.7	28	35.7	102	1.32	67	0
1975	54.2	59	69.2	58	39	60	0.25	103	1
1974	51.6	98	66.3	97	36.9	87	2.20	43	0
1973	54.6	53	69.3	55	39.9	51	0.11	109	0
1972	52.6	83	66.2	100	38.9	63	1.43	63	0
1971	49.6	111	61.1	115	38	76	2.80	32	0
1970	52.9	79	64.9	105	40.9	37	2.49	38	0
1969	55	40	69.4	53	40.6	42	0.33	100	0
1968	51.5	100	68.4	69	34.7	108	0.78	83	0
1967	52.3	89	66.3	97	38.2	73	2.11	46	0
1966	55	40	69.6	49	40.5	43	4.43	14	1
1965	54	65	67.7	80	40.2	47	4.61	11	0
1964	53.5	72	66.6	88	40.4	44	1.15	70	0
1963	53.3	75	74.1	14	32.5	115	0.12	108	0
1962	54.5	54	69.2	58	39.7	54	0.36	98	1
1961	53.7	70	66.5	90	40.9	37	1.36	66	0
1960	52.4	86	70.3	41	34.4	109	0.08	112	0
1959	55	40	69.8	47	40.1	49	1.72	57	1
1958	56.2	25	76.4	7	35.9	100	0.06	115	0
1957	54.8	47	71.8	27	37.8	80	1.38	64	0
1956	54.2	59	74.8	11	33.6	112	0.21	104	0
1955	54.3	56	66.4	93	42.2	23	1.14	71	0
1954	52.1	93	70.1	44	34.2	110	0.68	87	0
1953	56.5	22	76.9	5	36.2	98	0.14	107	0
1952	51.5	100	66.5	90	36.5	93			0
1951	51.6	98	64.9	105	38.4	68	4.46	13	0
1950	59	3	78.8	2	39.3	58	0.09	111	0
1949	51.4	102	69.6	49	33.1	113	1.02	74	0
1948	49.5	112	66.1	101	33	114	2.91	28	0
1947	52	94	68.5	67	35.5	104	4.51	12	0
1946	53.1	76	68.8	64	37.8	80	1.46	61	2
1945	54.2	59	70.1	44	38.3	71	4.74	10	0
1944	54.3	56	71.7	28	36.6	91	0.95	76	1
1943	53.1	76	66.9	86	39	60	5.83	5	1
1942	54.3	56	72	26	36.6	91	1.04	72	0
1941	52.2	91	66.1	101	38.3	71	3.05	26	0
1940	58.1	10	73.1	18	43.1	14	7.59	3	0
1939	58.6	6	77.5	4	39.8	53	0.51	94	0
1938	57.4	15	72.5	20	42.3	21	4.22	19	1
1937			73.2	17			1.64	58	5
1936	53.8	68	68.4	69	39.2	59	6.30	4	0
1935	54	65	70.6	39	37.4	82	0.84	82	0
1934			68.3	73			2.91	28	5
1933	53	78	69.2	58	36.7	89	2.18	44	0
1932	50	110	63.6	111	36.4	95	4.41	15	0
1931	50.4	107	63.7	110	37.1	84	5.43	6	0
1930	51.7	96	71.4	35	31.9	116	0.00	119	0
1929	57.6	14	78.2	3	37.1	84			0
1928	52.9	79	69.8	47	35.9	100	2.75	33	0
1927	52.3	89	66.4	93	38.1	74	3.11	25	0
1926	51.3	103	63.9	109	38.8	65	4.41	15	0
1925	55.8	31	71.5	31	40.1	49	1.75	54	0
1924	51.8	95	66.6	88	36.9	87	2.40	39	0
1923	53.4	73	67.9	79	38.9	63	1.79	53	0
1922	55.9	29	69.4	53	42.5	20	2.60	37	0
1921	57.7	13	70.7	38	44.6	8	11.68	1	0
1920	52.4	86	68.4	69	36.4	95	0.69	86	0
1919	54.7	50	71.4	35	38.1	74	0.87	79	0
1918	52.6	83	68.5	67	36.7	89	2.66	35	0
1917	58.3	8	80.9	1	35.7	102	0.00	119	0
1916	50.6	106	66.4	93	34.8	107	2.11	46	0
1915	52.9	79	67.5	84	38.4	68	3.47	22	0
1914	51.1	104	61.9	114	40.3	45	2.85	30	0
1913	52.2	91	64.9	105	39.6	56	1.03	73	0
1912			70.4	40			0.05	116	9
1911							1.59	60	8
1910	54.8	47	72.4	24	37.2	83	0.33	100	0
1909	51.1	104	62	113	40.3	45	4.75	9	0
1908	51.7	96	66.3	97	37.1	84	1.19	69	0
1907	55.7	34	72.5	20	39	60	0.57	92	0
1906	55	40	68.4	69	41.6	29	4.14	20	0
1905	52.4	86	69.6	49	35.3	106	0.55	93	1
1904	54.8	47	70.8	37	38.8	65	2.73	34	0
1903	53.8	68	74.3	12	33.7	111	0.10	110	3
1902	53.4	73	68.9	63	38	76	2.21	42	0
1901	55.9	29	75.4	10	36.4	95	0.43	95	0
1900	55.8	31	76.1	8	35.5	104	0.00	119	0
1899	54.2	59	72.2	25	36.2	98	0.87	79	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2025	59.8
1977	59.2
1950	59
1980	58.8
2017	58.7
2014	58.6
1939	58.6
2005	58.3
1917	58.3
2000	58.1
More years share the last value

Coldest
Year	Mean, °F
1948	49.5
1971	49.6
1932	50
1987	50.4
1978	50.4
1931	50.4
1916	50.6
1914	51.1
1909	51.1
1926	51.3

Wettest
Year	Precipitation, in
1921	11.68
2010	7.85
1940	7.59
1936	6.30
1943	5.83
1931	5.43
2008	5.38
1984	5.32
1909	4.75
1945	4.74

Driest
Year	Precipitation, in
1930	0.00
1917	0.00
1900	0.00
2000	0.01
2017	0.05
1912	0.05
1958	0.06
2024	0.07
1979	0.08
1960	0.08

The hottest, coldest and wettest days

Hottest day: 86°F; 10 December 2025
Coldest night: 37°F; 29 December 2025
Wettest day: 0.64 in; 24 December 2025

Every month, season and year

Months

Seasons

Years

El Cajon, CA the day's answers

All-time records

Every answer in words

December 2025 brought 1.63 in of precipitation in El Cajon, CA, the wettest December since 2022, 59th wettest of 121.
The hottest day of December 2025 in El Cajon, CA: 86°F on Wednesday 10 December 2025.
The coldest night of December 2025 in El Cajon, CA: a low of 37°F on Monday 29 December 2025.
The wettest day of December 2025 in El Cajon, CA: 0.64 in on Wednesday 24 December 2025.