El Cajon, CA: Summer

31 August 2026: Summer 2026 averaged 76.1°F in El Cajon, CA, the warmest summer since 2018, tied 3rd warmest of 108 (with 2016).

Summer 2026

Mean temperature: 76.1°F; Warmest since 2018; 3rd warmest of 108
Precipitation: a trace; Driest since 2019; 17th driest of 114

The mean temperature of every summer in El Cajon, CA since 1899: 76.1°F in 2026; the highest is 77.7°F, in 2006.

Every year, ranked, as a table

Every summer 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	76.1	3	86.6	30	65.5	2	trace	84	0
2025	73	44	83.7	100	62.3	21	0.11	52	0
2024	74.5	14	86	50	63	14	0.05	64	0
2023	73.2	38	83.9	95	62.5	20	1.98	2	0
2022	75.1	11	86.3	40	63.9	11	0.02	77	0
2021	75.3	8	86.1	44	64.4	7	0.12	50	0
2020	75.3	8	86.6	30	64	10	0.25	29	0
2019	74	22	84.7	81	63.2	12	0.00	99	0
2018	76.6	2	87.2	19	66	1	0.00	99	0
2017	75.5	5	86.4	37	64.6	5	0.00	99	0
2016	76.1	3	87.4	16	64.8	4	0.00	99	0
2015	75.5	5	85.6	63	65.3	3	0.78	11	0
2014	75.2	10	86.1	44	64.4	7	0.29	26	0
2013	73.2	38	83.3	107	63.2	12	0.00	99	0
2012	73.1	41	84.8	80	61.5	30	0.01	80	0
2011	72.4	52	83.4	105	61.4	32	0.05	64	0
2010	72.1	61	83.8	97	60.5	43	0.00	99	1
2009	73.9	26	85.8	59	62	25	0.12	50	0
2008					62.8	16	0.00	99	10
2007									13
2006	77.7	1	91.3	1	64.1	9	2.00	1	4
2005	74.1	20	86.9	24	61.3	33	0.28	27	1
2004			85.5	66			0.00	99	12
2003	74.4	15	86.1	44	62.7	17	0.80	10	9
2002							0.00	99	20
2001	74.2	17	86.9	24	61.3	33	0.38	22	8
2000	74.8	12	88.3	10	61.5	30	trace	84	9
1999	72.8	48	85.9	55	59.6	53	0.14	43	6
1998									63
1997			85.9	55			0.02	77	12
1996							0.05	64	17
1995					59.5	55	0.20	32	11
1994									33
1993	73.1	41	83.4	105	62.9	15	0.58	18	9
1992									37
1991	71.2	76	81.3	111	60.9	40	0.69	15	7
1990					62.6	19	0.94	8	12
1989					61.9	27	0.00	99	20
1988	72.4	52	83.6	102	61.3	33	0.00	99	9
1987					60.4	47	trace	84	17
1986	74	22	86.1	44	62.1	22	0.13	47	7
1985					62	25	trace	84	13
1984	75.4	7	86.3	40	64.5	6	trace	84	7
1983	74.2	17	87.9	12	60.5	43	0.09	54	4
1982	73.4	32	85.9	55	61.3	33	0.00	99	7
1981									31
1980	74.6	13	88.8	7	60.5	43	trace	84	2
1979									37
1978	74	22	87.9	12	60	51	trace	84	1
1977	73.6	28	85.2	74	62.1	22	1.82	4	0
1976	73	44	85.6	63	60.3	50	0.05	64	1
1975	71.1	79	83.5	104	58.6	59	0.06	60	2
1974	73	44	85.3	72	60.7	41	0.01	80	1
1973	72.4	52	84.4	87	60.4	47	trace	84	1
1972	74.1	20	85.5	66	62.7	17	0.70	14	1
1971	73.3	33	85.6	63	61	38	0.05	64	0
1970	74	22	86.1	44	61.9	27	0.03	74	1
1969	73.3	33	84.5	85	62.1	22	0.63	16	0
1968	72.6	49	84.7	81	60.4	47	0.14	43	2
1967	73.3	33	85.1	77	61.6	29	0.17	35	0
1966	73.3	33	85.5	66	61.2	37	trace	84	2
1965	70.5	94	82.4	108	58.8	56	0.07	56	1
1964	71.8	63	85.3	72	58.4	60	0.01	80	1
1963	71.2	76	84	92	58.4	60	0.14	43	0
1962	71.8	63	84.7	81	58.8	56	0.03	74	0
1961	73.1	41	85.2	74	61	38	0.13	47	1
1960	73.9	26	87.4	16	60.5	43	trace	84	3
1959	74.2	17	88.9	6	59.6	53	0.06	60	0
1958	72.3	57	87	21	57.7	69	trace	84	0
1957	73.5	30	89.1	4	57.9	65	0.20	32	0
1956	71.1	79	86.6	30	55.6	103	0.03	74	2
1955	71	85	86	50	56	97	0.13	47	0
1954	71.4	72	85.5	66	57.2	76	0.16	37	3
1953	71.2	76	86.8	26	55.8	100	0.16	37	3
1952	71	85	86.6	30	55.5	105	0.00	99	4
1951	70.2	97	84.2	89	56.2	90	1.92	3	0
1950	68.6	106	83.9	95	53.4	114	0.00	99	1
1949	70.3	96	85.1	77	55.4	106	0.00	99	0
1948	68.3	107	84	92	52.6	115	0.15	41	1
1947	70.7	92	86.5	35	55	109	0.00	99	2
1946	72.6	49	89.9	2	55.1	108	trace	84	2
1945	71.1	79	84.2	89	57.9	65	1.41	5	8
1944	69.2	103	84.5	85	53.7	113	0.04	70	1
1943	71	85	85.5	66	56.4	88	0.34	23	1
1942	71	85	85.7	61	56.2	90	0.05	64	1
1941	71.1	79	85.5	66	56.6	86	0.06	60	5
1940	71.6	67	86	50	57.1	79	0.01	80	0
1939	71.9	62	86.8	26	57.2	76	0.07	56	2
1938	71.1	79	84.3	88	57.9	65	0.31	25	2
1937	71.7	65	86.7	28	57.1	79	0.09	54	6
1936	73.2	38	87.7	14	58.7	58	0.20	32	2
1935	72.2	59	86.4	37	58	63	0.42	20	0
1934	70.6	93	83.8	97	57.4	74	0.88	9	2
1933					57.1	79	0.07	56	15
1932	68.1	108	81.9	110	54.4	111	0.16	37	1
1931	73.5	30	86.5	35	60.6	42	0.39	21	0
1930	71.5	70	86	50	56.9	83	0.04	70	0
1929	73.6	28	89.3	3	58	63	0.02	77	7
1928	71.1	79	85.7	61	56.4	88	0.04	70	0
1927	72.3	57	87.7	14	57	82	0.14	43	0
1926	72.2	59	86.3	40	58.2	62	0.23	31	0
1925	72.4	52	87	21	57.7	69	0.76	12	0
1924	71.6	67	87.4	16	55.7	102			0
1923	70.1	98	85.1	77	55.2	107			0
1922	72.4	52	87.2	19	57.7	69			0
1921	71.4	72	85.2	74	57.6	72	0.07	56	0
1920	71.6	67	86.2	43	56.9	83	trace	84	1
1919	72.6	49	88.1	11	57.2	76	0.10	53	0
1918	74.4	15	89.1	4	59.7	52	0.27	28	0
1917	73.3	33	88.8	7	57.9	65			0
1916	69.8	101	83.8	97	55.8	100			0
1915	71.7	65	86.1	44	57.3	75			0
1914	69.1	105	82.3	109	55.9	99	0.16	37	0
1913	70.4	95	84.1	91	56.7	85	0.63	16	1
1912	70.1	98	83.7	100	56.5	87	1.02	7	1
1911							0.06	60	40
1910	71	85	85.9	55	56.1	96	0.34	23	1
1909	71.3	75	86.4	37	56.2	90	0.15	41	0
1908	71.4	72	86.6	30	56.2	90	1.05	6	0
1907	71.5	70	87	21	56	97	0.25	29	1
1906	73	44	88.4	9	57.5	73	0.17	35	0
1905	71	85	85.8	59	56.2	90	0.04	70	0
1904			86.7	28			trace	84	20
1903	70.8	91	86	50	55.6	103	trace	84	2
1902	69.2	103	83.6	102	54.7	110	0.75	13	3
1901									72
1900	70.1	98	84	92	56.2	90			0
1899	69.4	102	84.7	81	54.1	112	0.52	19	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2006	77.7
2018	76.6
2026	76.1
2016	76.1
2017	75.5
2015	75.5
1984	75.4
2021	75.3
2020	75.3
2014	75.2

Coldest
Year	Mean, °F
1932	68.1
1948	68.3
1950	68.6
1914	69.1
1944	69.2
1902	69.2
1899	69.4
1916	69.8
1923	70.1
1912	70.1
More years share the last value

Wettest
Year	Precipitation, in
2006	2.00
2023	1.98
1951	1.92
1977	1.82
1945	1.41
1908	1.05
1912	1.02
1990	0.94
1934	0.88
2003	0.80

Driest
Year	Precipitation, in
2019	0.00
2018	0.00
2017	0.00
2016	0.00
2013	0.00
2010	0.00
2008	0.00
2004	0.00
2002	0.00
1989	0.00
More years share the last value

The hottest, coldest and wettest days

Hottest day: 101°F; 26 August 2026, 23 August 2026
Coldest night: 55°F; 9 June 2026

Every month, season and year

Months

Seasons

Years

El Cajon, CA the day's answers

All-time records

Every answer in words

Summer 2026 brought a trace of precipitation in El Cajon, CA, the driest summer since 2019, tied 17th driest of 114 (with 2000, 1987, 1985 and 11 other years).
The hottest day of summer 2026 in El Cajon, CA: 101°F on Wednesday 26 August 2026 and Sunday 23 August 2026.
The coldest night of summer 2026 in El Cajon, CA: a low of 55°F on Tuesday 9 June 2026.