El Cajon, CA: 2026

5 October 2026: 2026 so far averaged 69.5°F in El Cajon, CA, the warmest 1 January to 4 October on record, in 100 years since 1900 (1901 excluded: 164 of 277 days missing; 1904 excluded: 56 of 278 days missing; 1906 excluded: 32 of 277 days missing; 24 more years excluded for missing days); provisional.

2026 so far, to 4 October 2026

Mean temperature: 69.5°F; Warmest on record; Warmest of 100, provisional
Precipitation: 6.86 in; Driest since 2025; 44th driest of 106

The mean temperature of every 1 January to 4 October in El Cajon, CA since 1900: 69.5°F in 2026, the highest of them all.

Every year, ranked, as a table

Every 1 January to 4 October in El Cajon, CA from 1899 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	69.5	1	81.5	1	57.6	1	6.86	62	0
2025	65.8	22	76.9	76	54.7	15	6.75	64	0
2024	65.8	22	76.6	84	55	11	14.60	11	0
2023	64	54	74.2	100	53.9	26	17.89	8	0
2022	67.1	12	79.5	19	54.8	14	3.69	93	0
2021	67	13	78.6	39	55.3	9	5.49	78	0
2020	67.8	7	79.6	14	56	8	9.21	41	0
2019	65.8	22	76.4	90	55.2	10	12.55	19	0
2018	68.2	4	79.6	14	56.8	5	4.76	81	0
2017	67.9	5	78.8	31	57	3	10.96	30	0
2016	67.9	5	79.6	14	56.2	6	7.74	55	0
2015	69.1	2	80.5	7	57.6	1	4.62	86	0
2014	69.1	2	81.2	4	57	3	2.89	100	1
2013	66.1	19	77.1	72	55	11	4.89	80	1
2012	66.5	17	78.8	31	54.1	21	5.91	71	0
2011	65.3	33	77.1	72	53.5	30	7.68	56	4
2010	65.5	28	77.9	52	53.2	32	8.78	44	6
2009	67.3	11	80.3	9	54.4	17	4.02	90	8
2008							7.27	58	35
2007							3.99	91	32
2006	67.7	9	81.5	1	54	23	9.72	35	14
2005	67	13	79.4	21	54.3	18	11.44	25	21
2004							3.27	97	69
2003							4.66	83	44
2002					52.2	40	1.97	102	38
2001	66.3	18	78.9	27	53.7	28	10.34	32	21
2000	67.8	7	81.4	3	54.5	16	3.67	95	18
1999	65	42	78.2	46	51.9	43	4.54	87	22
1998									136
1997									65
1996									69
1995	65.7	25	77.6	61	53.8	27	19.85	3	15
1994									102
1993					56.1	7	17.81	9	33
1992									88
1991									64
1990					54.2	19	5.98	70	39
1989							0.58	106	68
1988							6.26	67	49
1987					53.3	31	6.55	66	35
1986									54
1985					53.2	32	2.63	101	38
1984	67.7	9	80.7	6	55	11	1.00	105	24
1983	66.7	15	79.6	14	53.7	28	18.80	5	15
1982	65.9	20	78.1	47	54.2	19			24
1981									33
1980	66.6	16	79.2	23	54	23	21.25	1	7
1979									75
1978	65.9	20	78	50	54.1	21	18.83	4	12
1977	65.4	30	77.8	54	52.7	36	7.10	61	7
1976	65.2	36	77.5	65	52.8	35	9.69	36	2
1975	63.2	77	75.8	94	50.7	56	7.88	53	3
1974	65	42	77.4	66	52.7	36	5.73	74	2
1973	63.7	64	75.3	96	52.1	41	8.02	52	3
1972	65.6	27	78.4	41	52.9	34	1.56	104	1
1971	64.7	46	77.6	61	51.8	45	4.66	83	0
1970	65.5	28	78.8	31	52.3	39	5.17	79	1
1969	65.4	30	76.9	76	54	23	13.04	17	0
1968	65.3	33	78.3	43	52.4	38	3.44	96	3
1967	64.8	45	77.6	61	52	42	5.88	73	0
1966							3.02	99	35
1965	63.3	74	76.7	81	49.9	66	7.14	60	3
1964	63	85	77.3	68	48.7	83	5.71	75	2
1963	64.6	47	77.7	59	51.5	47	8.36	47	2
1962	63.7	64	76.6	84	50.8	55	9.53	38	5
1961	65.1	39	78.7	36	51.6	46	3.24	98	8
1960	65.4	30	79	25	51.9	43	6.86	62	9
1959	65.7	25	80.3	9	51.2	49	5.59	77	0
1958	64.6	47	79.4	21	49.8	68	15.45	10	2
1957	64	54	77.2	71	50.7	56	12.57	18	2
1956	63.7	64	79.1	24	48.3	88	4.22	88	13
1955	62.5	90	78.1	47	47	100	8.03	51	0
1954					49.8	68	10.36	31	88
1953	64	54	81.1	5	47	100	3.69	93	3
1952	63.1	79	78.3	43	47.9	94	11.02	29	5
1951	63.1	79	77.8	54	48.4	86	8.14	50	0
1950	61	98	76	92	45.9	105	5.69	76	1
1949	61.1	97	75.3	96	46.9	102	9.55	37	1
1948	61.4	96	77.8	54	44.9	106	4.17	89	1
1947	64.2	49	80.4	8	48.2	90	1.87	103	6
1946	63.7	64	79.9	13	47.4	97	4.63	85	4
1945	62.1	93	76.5	88	47.8	95	7.87	54	17
1944	61.8	95	76.9	76	46.7	103	8.18	49	2
1943	64.1	52	78.8	31	49.6	70	11.37	27	8
1942	62.4	92	77.6	61	47.3	98	5.89	72	4
1941	63.9	58	77.1	72	50.4	59	20.64	2	18
1940	65.1	39	78.9	27	50.9	53	9.02	42	13
1939	63.7	64	77.3	68	50.1	62	13.12	16	17
1938	64.2	49	78	50	50.2	61	14.04	13	12
1937	62.6	89	76.5	88	48.8	77	14.41	12	11
1936	65.2	36	78.9	27	50.9	53	8.99	43	19
1935	63.7	64	76.6	84	50.5	58	12.33	20	11
1934	65.1	39	80	12	49.9	66	4.74	82	8
1933	60.5	100	74.8	98	46.6	104	8.27	48	16
1932	60.9	99	74.3	99	47.5	96	10.19	33	1
1931	65.2	36	79	25	51.4	48	10.14	34	0
1930	63.9	58	77.7	59	50	64	13.63	14	0
1929	63.2	77	77.9	52	48.6	84	7.43	57	7
1928	64.1	52	80.1	11	48.2	90	3.78	92	0
1927	63.7	64	77.8	54	49.5	71	18.12	6	0
1926	65	42	78.8	31	51.2	49	12.02	21	0
1925	63.8	61	78.9	27	48.8	77	8.75	45	0
1924	63.8	61	79.6	14	48	93			0
1923	63.4	72	78.4	41	48.4	86			0
1922	63.1	79	77.3	68	48.9	76			0
1921	62.8	86	76.9	76	48.6	84	9.24	40	0
1920	63.1	79	76.7	81	49.5	71	11.41	26	1
1919	63.6	71	78.1	47	49.1	75	7.22	59	0
1918	65.3	33	79.5	19	51.2	49	11.14	28	0
1917	63.3	74	77.8	54	48.8	77			1
1916	63.4	72	76.7	81	50.1	62			0
1915	62.8	86	75.6	95	50	64			0
1914	63.1	79	75.9	93	50.3	60	11.61	23	0
1913	62.5	90	76.9	76	48.1	92	6.69	65	1
1912							13.39	15	55
1911									162
1910	63.8	61	78.7	36	48.8	77	6.01	68	2
1909	63.1	79	77	75	49.2	74	11.66	22	0
1908	63.9	58	78.7	36	48.8	77	11.60	24	9
1907	64	54	78.5	40	49.5	71	9.27	39	4
1906									32
1905	64.2	49	77.4	66	51.1	52	18.11	7	0
1904									56
1903	62.7	88	76.6	84	48.8	77	5.99	69	3
1902	61.9	94	76.4	90	47.3	98	8.56	46	6
1901									164
1900	63.3	74	78.3	43	48.3	88			0
1899									31

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2026	69.5
2015	69.1
2014	69.1
2018	68.2
2017	67.9
2016	67.9
2020	67.8
2000	67.8
2006	67.7
1984	67.7

Coldest
Year	Mean, °F
1933	60.5
1932	60.9
1950	61
1949	61.1
1948	61.4
1944	61.8
1902	61.9
1945	62.1
1942	62.4
1955	62.5
More years share the last value

Wettest
Year	Precipitation, in
1980	21.25
1941	20.64
1995	19.85
1978	18.83
1983	18.80
1927	18.12
1905	18.11
2023	17.89
1993	17.81
1958	15.45

Driest
Year	Precipitation, in
1989	0.58
1984	1.00
1972	1.56
1947	1.87
2002	1.97
1985	2.63
2014	2.89
1966	3.02
1961	3.24
2004	3.27

The hottest, coldest and wettest days

Hottest day: 105°F; 9 September 2026
Coldest night: 33°F; 10 January 2026
Wettest day: 2.52 in; 1 January 2026

Month by month

Month	Mean temperature	Precipitation
January	59°F 4th warmest of 109	3.63 in 32nd wettest of 123
February	61.1°F 4th warmest of 103	2.60 in 43rd wettest of 119
March	68.2°F Warmest of 108	0.00 in Driest of 121
April	64°F 12th warmest of 108	0.24 in 36th driest of 117
May	65.9°F 27th warmest of 108	0.34 in 41st wettest of 122
June	70.7°F 21st warmest of 109	0.00 in Driest of 119
July	77.1°F 8th warmest of 111	a trace 41st wettest of 123
August	80.2°F Warmest of 110	0.00 in Driest of 121
September	77.2°F 9th warmest of 107	0.05 in 46th wettest of 118
October so far	82.8°F Warmest of 104	0.00 in Driest of 122

Hot days and freezes

El Cajon, CA has had 54 days at 90°F or above in 2026 through 4 October, the most by that date since 2020, tied 23rd most of 100 (with 1955 and 1927).
El Cajon, CA has had 9 days at 100°F or above in 2026 through 4 October, the most by that date since 2020, tied 11th most of 100 (with 1982, 1958 and 1917).

Daily records set

Date	Record	Value	Before	Check
3 October	Warmest day	104°F	103°F 1987	Provisional
28 March	Warmest day	93°F	92°F 2004	Provisional
21 March	Warmest day	89°F	87°F 1997, 1959, 1931	Provisional
20 March	Warmest day	101°F	97°F 1997	Provisional
18 March	Warmest day	94°F	91°F 1997	Provisional
17 March	Warmest day	97°F	91°F 1978, 1914	Provisional
16 March	Warmest day	93°F	92°F 2014	Provisional
28 February	Warmest day	92°F	89°F 2009	Provisional
27 February	Warmest day	94°F	88°F 2025, 1926	Provisional
30 January	Warmest day	88°F	87°F 1954, 1931	Provisional

Daily records set and not listed: 0

Every month, season and year

Months

Seasons

Years

2025
2026

El Cajon, CA the day's answers

All-time records

Every answer in words

2026 so far brought 6.86 in of precipitation in El Cajon, CA, the driest 1 January to 4 October since 2025, tied 44th driest of 106 (with 1960).
The hottest day of 2026 so far in El Cajon, CA: 105°F on Wednesday 9 September 2026.
The coldest night of 2026 so far in El Cajon, CA: a low of 33°F on Saturday 10 January 2026.
The wettest day of 2026 so far in El Cajon, CA: 2.52 in on Thursday 1 January 2026.