Weather on October 15
El Cajon, CA
55 Years of Data
Avg High
81°F
Avg Low
56°F
Warmest
2015
79°F avg
Coldest
2025
61°F avg
About This Date
October 15th in El Cajon, CA typically brings warm fall weather, with average highs around 81°F and lows near 56°F — a 25°F daily swing. Over 55 years of records, the warmest October 15th was in 2015 (79°F average), while the coldest was 2025 (61°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 4% of October 15th dates historically. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for October 15th in El Cajon, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025coldest | 68° | 53° | 61° | — | — |
| 2024 | 74° | 61° | 67° | — | — |
| 2023 | 90° | 52° | 71° | — | — |
| 2022 | 69° | 62° | 66° | 0.25" | — |
| 2021 | 89° | 48° | 69° | — | — |
| 2020 | 98° | 59° | 79° | — | — |
| 2019 | 86° | 51° | 69° | — | — |
| 2018 | 82° | 56° | 69° | — | — |
| 2017 | 98° | 51° | 75° | — | — |
| 2016 | 80° | 57° | 69° | — | — |
| 2015warmest | 84° | 73° | 79° | — | — |
| 2014 | 78° | 64° | 71° | — | — |
| 2013 | 85° | 54° | 69° | — | — |
| 2012 | 91° | 57° | 74° | — | — |
| 2011 | 80° | 60° | 70° | — | — |
| 2010 | 74° | 61° | 67° | — | — |
| 2009 | 89° | 59° | 74° | — | — |
| 2008 | 95° | 45° | 70° | — | — |
| 2007 | 69° | 59° | 64° | — | — |
| 2006 | 66° | 58° | 62° | — | — |
| 2005 | 70° | 58° | 64° | — | — |
| 2004 | 74° | 57° | 65° | — | — |
| 2003 | 81° | 61° | 71° | — | — |
| 2002 | 64° | 59° | 62° | — | — |
| 2001 | 87° | 54° | 70° | — | — |
| 2000 | 82° | 47° | 64° | — | — |
| 1999 | 92° | 55° | 73° | — | — |
| 1998 | 69° | 61° | 65° | — | — |
| 1997 | 99° | 52° | 75° | — | — |
| 1996 | 81° | 55° | 68° | — | — |
| 1995 | 85° | 58° | 71° | — | — |
| 1994 | 71° | 57° | 64° | 0.03" | — |
| 1993 | 76° | 57° | 66° | — | — |
| 1992 | 76° | 64° | 70° | — | — |
| 1991 | 89° | 57° | 73° | — | — |
| 1990 | 78° | 62° | 70° | — | — |
| 1989 | 84° | 58° | 71° | — | — |
| 1988 | 80° | 56° | 68° | — | — |
| 1987 | 76° | 63° | 69° | — | — |
| 1986 | 77° | 49° | 63° | — | — |
| 1985 | 89° | 53° | 71° | — | — |
| 1984 | 75° | 55° | 65° | — | — |
| 1983 | 77° | 52° | 64° | — | — |
| 1982 | 91° | 54° | 72° | — | — |
| 1981 | 71° | 54° | 62° | — | — |
| 1980 | 70° | 54° | 62° | — | — |
| 1979 | — | 57° | — | — | — |
| 1978 | 94° | 54° | 74° | — | — |
| 1977 | 85° | — | — | — | — |
| 1976 | 77° | 59° | 68° | — | — |
| 1975 | 87° | 46° | 67° | — | — |
| 1974 | 98° | 51° | 75° | — | — |
| 1973 | 89° | 49° | 69° | — | — |
| 1972 | 79° | 52° | 65° | — | — |
| 1971 | 69° | 63° | 66° | — | — |
55 years of data from GILLESPIE FLD