El Cajon, CA: January

31 January 2026: January 2026 averaged 59°F in El Cajon, CA, the warmest January since 2018, 4th warmest of 109.

January 2026

Mean temperature: 59°F; Warmest since 2018; 4th warmest of 109
Precipitation: 3.63 in; Wettest since 2024; 32nd wettest of 123

A normal January in El Cajon, CA (1991 to 2020): 0.98 in of precipitation, between 0.02 in and 4.80 in in eight years of ten.

The mean temperature of every January in El Cajon, CA since 1900: 59°F in 2026; the highest is 60.9°F, in 2018.

Every year, ranked, as a table

Every January in El Cajon, CA from 1900 to 2026, 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
2026	59	4	73.5	7	44.5	12	3.63	32	0
2025	53.6	51	68.7	51	38.5	62	0.52	97	0
2024	55.2	31	67.3	70	43.2	19	4.43	22	0
2023	53.4	56	63.4	102	43.3	18	6.90	7	0
2022	56.1	22	70.9	26	41.4	36	0.17	112	0
2021	56.3	15	70.7	30	41.9	26	2.61	46	0
2020	56.3	15	70.1	41	42.4	24	0.40	104	0
2019	56.2	18	68.8	50	43.6	16	3.23	38	0
2018	60.9	1	75.7	2	46	4	2.22	53	0
2017	55.4	29	65.1	91	45.8	7	4.80	15	0
2016	55.6	27	66.8	74	44.3	13	4.81	14	0
2015	58.8	5	72.9	14	44.7	9	0.62	92	0
2014	59.2	3	75.4	3	43	21	0.14	114	0
2013	53.1	60	67.2	71	39	58	1.69	63	0
2012	57.1	9	73	12	41.2	42	0.58	95	0
2011	56.8	11	72.9	14	40.8	43	0.74	84	0
2010	57	10	71.5	23	42.4	24	4.59	18	0
2009	59.8	2	76.1	1	43.4	17	0.02	118	0
2008	54.5	39	66.4	80	42.9	22	4.41	23	2
2007							0.88	79	4
2006	56.2	18	70.7	30	41.9	26	0.62	92	1
2005	56.1	22	67.5	69	44.6	11	4.11	28	3
2004							0.01	120	5
2003					44.3	13	0.00	121	4
2002	54.7	38	69	47	40.3	47	0.40	104	0
2001							4.03	29	4
2000	57.9	8	73.2	10	43.1	20	0.00	121	2
1999	56.5	14	71.6	22	41.5	33	1.85	60	3
1998					43.9	15	2.34	49	4
1997							3.47	33	4
1995	54.8	35	63.8	100	46	4	7.35	4	1
1994	56.2	18	73.2	10	40	50	0.98	74	3
1993			66.6	78	46.2	2	11.43	2	4
1992	54.8	35	70.8	28	39.4	56	0.34	107	3
1991					41.9	26	0.73	85	8
1990			69	47	39.7	51	2.38	48	4
1989	53.1	60	69.3	44	37.5	76	0.13	116	3
1988					40.2	48	2.12	55	4
1987	52.4	77	66	85	39.3	57	1.77	61	3
1986					45.5	8	0.70	87	4
1985	52.8	66	65.5	88	40.2	48	0.91	77	2
1984	55.9	26	72.2	18	39.6	52	0.24	110	1
1983	56.7	13	71.7	21	41.7	30	2.28	51	0
1982	54.1	42	66.6	78	41.8	29	3.31	36	2
1981	58	6	71.2	24	44.7	9	3.27	37	1
1980	58	6	68.1	61	47.6	1	8.39	3	1
1979	52.2	79	62.8	106	41.5	33	7.33	5	1
1978	56.3	15	66.4	80	46.2	2	5.97	9	0
1977	53.7	49	67	73	40.7	44	2.09	56	3
1976	55.4	29	73.5	7	37.3	81	0.00	121	0
1975	52.7	69	69.3	44	36	93	0.28	109	1
1974	53.9	44	65.1	91	42.7	23	3.93	30	0
1973	51	92	63.9	97	38.1	66	1.68	64	0
1972	50.7	94	66.7	75	34.6	104	0.02	118	0
1971	53.5	53	68.2	60	38.7	61	0.43	101	0
1970	54.8	35	68.4	55	41.3	39	0.68	90	0
1969	56.8	11	67.7	67	45.9	6	5.15	13	0
1968	53.1	60	69.6	42	36.7	86	0.58	95	0
1967	53.6	51	70.4	37	36.8	84	2.29	50	0
1966	52.1	82	68	63	36.2	92	1.28	71	0
1965	54	43	70.4	37	37.5	76	0.44	100	0
1964	50.9	93	68.4	55	33.4	110	1.49	66	0
1963	51.9	84	66.2	84	37.7	73	0.72	86	0
1962	52.9	64	68.4	55	37.4	79	3.45	34	1
1961	56.2	18	74.8	4	37.6	75	0.97	75	0
1960	50.3	97	63.9	97	36.7	86	3.01	39	1
1959	55.2	31	72.5	17	38	68	0.14	114	0
1958	52.6	72	70.4	37	34.9	101	0.90	78	0
1957	51.3	89	60.9	109	41.6	32	7.13	6	0
1956									11
1955	49.3	103	63.1	105	35.5	100	3.79	31	0
1954	55.2	31	72	20	38.4	63	4.19	27	0
1953	56.1	22	74	5	38.2	65	0.62	92	0
1952	47.8	107	60	110	35.7	96	4.41	23	0
1951	52.8	66	68.3	59	37.4	79	2.13	54	0
1950	48.4	106	64.3	94	32.4	115	2.61	46	0
1949	43.5	109	55.8	113	31.2	117	5.49	10	0
1948	53.5	53	73.6	6	33.4	110	0.07	117	0
1947	51.3	89	71.2	24	31.4	116	0.35	106	0
1946	52.8	66	70.8	28	34.8	102	0.81	81	0
1945	50.4	96	66.7	75	33.9	107	0.41	102	2
1944	52.2	79	68.4	55	35.8	94	1.25	72	1
1943	53.3	58	68.5	53	38	68	4.44	21	0
1942	53.8	45	70.7	30	37.1	82	0.68	90	1
1941	53.8	45	66.4	80	41.3	39	1.44	67	0
1940			67.7	67			2.71	43	6
1939	52.5	75	66	85	39	58			0
1938	54.9	34	72.2	18	38	68	1.97	57	1
1937	45.6	108	56.8	112	34.3	105	2.86	40	0
1936			70.9	26			0.92	76	11
1935	51.9	84	64.1	96	39.6	52	3.32	35	0
1934	52.7	69	70.7	30	34.7	103	0.70	87	0
1933	48.6	105	63.8	100	33.5	109	5.21	12	0
1932	48.9	104	61.3	107	36.6	88	1.31	70	0
1931	52.2	79	68	63	36.3	89	2.76	41	0
1930	52.5	75	64.5	93	40.5	46	4.65	16	0
1929	50.5	95	65.4	89	35.7	96	1.92	58	0
1928	54.4	40	73	12	35.7	96	0.41	102	0
1927	52.9	64	68	63	37.7	73	0.45	99	0
1926	52.6	72	69.6	42	35.6	99	0.75	82	0
1925	51.6	88	70.2	40	33.1	113	0.24	110	0
1924	52	83	70.7	30	33.3	112	0.75	82	0
1923	54.2	41	70.6	35	37.9	71	1.75	62	0
1922	49.5	101	63.3	103	35.8	94	4.64	17	0
1921	51.8	87	66.7	75	36.8	84	2.62	45	0
1920	53.7	49	67.9	66	39.5	54	0.70	87	0
1919	53.8	45	73.4	9	34.2	106	0.33	108	0
1918	52.6	72	68.9	49	36.3	89	1.44	67	0
1917	49.7	100	61.3	107	38.1	66	4.41	23	0
1916	50.3	97	59.1	111	41.5	33	16.68	1	0
1915	51.9	84	64.3	94	39.5	54	6.49	8	0
1914	53.8	45	66.3	83	41.3	39	4.56	20	0
1913	49.4	102	65.8	87	33	114	1.50	65	0
1912							0.50	98	16
1910	50.1	99	63.9	97	36.3	89	2.72	42	0
1909	53.4	56	65.4	89	41.4	36	5.31	11	0
1908					40.6	45	4.58	19	8
1907	51.1	91	63.2	104	38.9	60	4.35	26	2
1906	52.3	78	68.1	61	36.9	83	1.20	73	1
1905	55.5	28	69.3	44	41.7	30	2.67	44	0
1904	53.2	59	72.8	16	33.6	108	0.17	112	1
1903	53.5	53	68.7	51	37.8	72	0.84	80	1
1902	53	63	68.5	53	37.5	76	2.28	51	0
1901	52.7	69	67.1	72	38.4	63	1.89	59	1
1900	56	25	70.5	36	41.4	36	1.33	69	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2018	60.9
2009	59.8
2014	59.2
2026	59
2015	58.8
1981	58
1980	58
2000	57.9
2012	57.1
2010	57

Coldest
Year	Mean, °F
1949	43.5
1937	45.6
1952	47.8
1950	48.4
1933	48.6
1932	48.9
1955	49.3
1913	49.4
1922	49.5
1917	49.7

Wettest
Year	Precipitation, in
1916	16.68
1993	11.43
1980	8.39
1995	7.35
1979	7.33
1957	7.13
2023	6.90
1915	6.49
1978	5.97
1949	5.49

Driest
Year	Precipitation, in
2003	0.00
2000	0.00
1976	0.00
2004	0.01
2009	0.02
1972	0.02
1948	0.07
1989	0.13
2014	0.14
1959	0.14

The hottest, coldest and wettest days

Hottest day: 88°F; 30 January 2026
Coldest night: 33°F; 10 January 2026
Wettest day: 2.52 in; 1 January 2026

Every month, season and year

Months

Seasons

Years

El Cajon, CA the day's answers

All-time records

Every answer in words

January 2026 brought 3.63 in of precipitation in El Cajon, CA, the wettest January since 2024, 32nd wettest of 123.
The hottest day of January 2026 in El Cajon, CA: 88°F on Friday 30 January 2026.
The coldest night of January 2026 in El Cajon, CA: a low of 33°F on Saturday 10 January 2026.
The wettest day of January 2026 in El Cajon, CA: 2.52 in on Thursday 1 January 2026.