El Cajon, CA: records

16 September 2026: The hottest day on record in El Cajon, CA: 114°F on Saturday 5 September 2020.

The record begins: 1899

All-time records

Hottest day: 114°F; 5 September 2020
Coldest night: 19°F; 8 January 1913
Wettest day: 5.60 in; 27 January 1916
Warmest night: 83°F; 3 September 2007
Coldest day: 42°F; 11 January 1949

Daily records by decade

New daily records set in El Cajon, CA by decade since the 1920s: the most record highs, 88, came in the 1950s; the most record lows, 81, in the 1940s.

Record highs
Record lows

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1890s	0	0	1
1900s	0	0	10
1910s	0	0	10
1920s	14	11	10
1930s	74	79	10
1940s	62	81	10
1950s	88	66	10
1960s	30	12	10
1970s	28	7	10
1980s	37	0	10
1990s	21	0	10
2000s	51	0	10
2010s	36	0	10
2020s	15	0	7

Records by month

Month	Highest	Lowest	Wettest day
January	93°F 15 January 2021, 9 January 1923	19°F 8 January 1913	5.60 in 27 January 1916
February	96°F 3 February 1963	21°F 6 February 1903	5.15 in 16 February 1927
March	101°F 20 March 2026	26°F 5 March 1948	2.15 in 5 March 1978
April	105°F 13 April 1940	29°F 4 April 1945	3.57 in 5 April 1926
May	106°F 31 May 1909	34°F 13 May 1908	1.70 in 1 May 1930
June	113°F 14 June 1917	40°F 19 June 1933	0.70 in 29 June 1912
July	113°F 22 July 2006	44°F 13 July 1932	1.90 in 31 July 2006
August	111°F 31 August 1955	44°F 3 August 1944, 27 August 1928	1.50 in 17 August 1977
September	114°F 5 September 2020	37°F 18 September 1900	1.35 in 7 September 1939
October	107°F 16 October 1958, 1 October 1906	30°F 30 October 1971	2.60 in 4 October 1925
November	99°F 7 November 2008	25°F 13 November 1938, 14 November 1916, 20 November 1906	2.40 in 25 November 1985
December	95°F 8 December 1938, 30 December 1917	21°F 29 December 1954	4.10 in 25 December 1921

Streaks, months and years

Longest heat streak	22 days	31 August to 21 September 1983	A high of 90°F or above
Wettest month	16.68 in	January 1916
Driest month	0.00 in	August 2026	and 277 more
Wettest year	28.14 in	1941
Driest year	4.86 in	1968

Every record in words

The coldest night on record in El Cajon, CA: a low of 19°F on Wednesday 8 January 1913.
The wettest day on record in El Cajon, CA: 5.60 in on Thursday 27 January 1916.
The warmest night on record in El Cajon, CA: a low of 83°F on Monday 3 September 2007.
The coldest day on record in El Cajon, CA: a high of 42°F on Tuesday 11 January 1949.
The longest run of days with a high of 90°F or above in El Cajon, CA: 22 days, from Wednesday 31 August to Wednesday 21 September 1983.
The wettest month on record in El Cajon, CA: January 1916, with 16.68 in of precipitation.
The driest month on record in El Cajon, CA: August 2026, with 0.00 in of precipitation (shared with 277 other months); provisional.
The wettest year on record in El Cajon, CA: 1941, with 28.14 in of precipitation.
The driest year on record in El Cajon, CA: 1968, with 4.86 in of precipitation.

El Cajon, CA the day's answers