Highest Daily Low Temperatures in El Cajon History

This is a list of the hottest daily low temperatures ever recorded in El Cajon, California history from 1899–2024 based on data from the NOAA.

Highest temperatures all-time

Record for the highest daily low temperature in El Cajon

The highest low temperature for a calendar day in El Cajon, California history was 82 °F which happened on Wednesday, September 7, 1904.

Rank	Temperature	Date
1	82 °F	September 7, 1904
2	81 °F	September 4, 2022
3	80 °F	September 3, 2017
3	80 °F	August 15, 1904
5	78 °F	August 31, 2013
5	78 °F	September 9, 1984
5	78 °F	August 12, 1904
8	77 °F	September 9, 2015
8	77 °F	September 17, 2014
8	77 °F	August 30, 2013
8	77 °F	September 10, 1984
8	77 °F	July 30, 1980
8	77 °F	August 11, 1904
8	77 °F	August 10, 1904
8	77 °F	August 2, 1904
16	76 °F	September 3, 2022
16	76 °F	August 22, 2020
16	76 °F	August 10, 2018
16	76 °F	July 7, 2018
16	76 °F	September 27, 2016
16	76 °F	September 11, 2015
16	76 °F	September 10, 2015
16	76 °F	September 6, 2013
16	76 °F	August 26, 2013
16	76 °F	July 15, 1984
16	76 °F	July 31, 1980
16	76 °F	September 9, 1904
16	76 °F	September 8, 1904
16	76 °F	September 6, 1904
16	76 °F	August 16, 1904
16	76 °F	August 14, 1904
16	76 °F	August 9, 1904
16	76 °F	August 3, 1904