Weather on September 5
El Cajon, CA
55 Years of Data
Avg High
90°F
Avg Low
66°F
Warmest
2020
93°F avg
Coldest
1985
68°F avg
About This Date
September 5th in El Cajon, CA typically brings hot fall weather, with average highs around 90°F and lows near 66°F. Over 54 years of records, the warmest September 5th was in 2020 (93°F average), while the coldest was 1985 (68°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 5th dates historically. The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
Planning for September 5th in El Cajon, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 65° | 76° | — | — |
| 2024 | 107° | 68° | 88° | — | — |
| 2023 | 77° | 63° | 70° | — | — |
| 2022 | 96° | 73° | 85° | — | — |
| 2021 | 93° | 68° | 81° | — | — |
| 2020warmest | 114° | 71° | 93° | — | — |
| 2019 | 94° | 73° | 83° | — | — |
| 2018 | 85° | 68° | 76° | — | — |
| 2017 | 88° | 66° | 77° | — | — |
| 2016 | 77° | 62° | 70° | — | — |
| 2015 | 85° | 64° | 74° | — | — |
| 2014 | 88° | 62° | 75° | — | — |
| 2013 | 97° | 74° | 85° | — | — |
| 2012 | 95° | 67° | 81° | — | — |
| 2011 | 83° | 64° | 73° | 0.1" | — |
| 2010 | 96° | 62° | 79° | — | — |
| 2009 | 93° | 67° | 80° | — | — |
| 2008 | 97° | 65° | 81° | — | — |
| 2007 | 78° | 62° | 70° | — | — |
| 2006 | 103° | 61° | 82° | — | — |
| 2005 | 86° | 61° | 73° | — | — |
| 2004 | 103° | 69° | 86° | — | — |
| 2003 | 100° | 70° | 85° | — | — |
| 2002 | 85° | 65° | 75° | — | — |
| 2001 | 90° | 67° | 78° | — | — |
| 2000 | 89° | 57° | 73° | — | — |
| 1999 | 80° | 58° | 69° | — | — |
| 1998 | 81° | 69° | 75° | — | — |
| 1996 | 86° | 65° | 75° | — | — |
| 1995 | 90° | 68° | 79° | — | — |
| 1994 | 94° | 64° | 79° | — | — |
| 1993 | 85° | 65° | 75° | — | — |
| 1992 | 85° | 58° | 71° | — | — |
| 1991 | 83° | 63° | 73° | — | — |
| 1990 | 68° | 92° | 80° | — | — |
| 1989 | 99° | — | — | — | — |
| 1988 | 105° | 71° | 88° | — | — |
| 1987 | 86° | 61° | 73° | — | — |
| 1986 | 92° | 61° | 76° | — | — |
| 1985coldest | 76° | 60° | 68° | — | — |
| 1984 | 107° | 70° | 88° | — | — |
| 1983 | 90° | 63° | 76° | — | — |
| 1982 | 97° | 63° | 80° | — | — |
| 1981 | 83° | 67° | 75° | — | — |
| 1980 | 86° | 61° | 73° | — | — |
| 1979 | 84° | 60° | 72° | — | — |
| 1978 | 84° | 69° | 77° | — | — |
| 1977 | 98° | 62° | 80° | — | — |
| 1976 | 87° | 70° | 78° | — | — |
| 1975 | 91° | 63° | 77° | — | — |
| 1974 | 94° | 67° | 80° | — | — |
| 1973 | 81° | 63° | 72° | — | — |
| 1972 | 90° | 67° | 78° | — | — |
| 1971 | 91° | 60° | 76° | — | — |
54 years of data from GILLESPIE FLD