Weather on May 15
El Cajon, CA
55 Years of Data
Avg High
76°F
Avg Low
57°F
Warmest
2014
81°F avg
Coldest
1989
57°F avg
About This Date
May 15th in El Cajon, CA typically brings pleasant spring weather, with average highs around 76°F and lows near 57°F. Over 55 years of records, the warmest May 15th was in 2014 (81°F average), while the coldest was 1989 (57°F). Rain or other precipitation has occurred on about 2% of May 15th dates historically.
The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
Planning for May 15th in El Cajon, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 55° | 64° | — | — |
| 2024 | 68° | 57° | 63° | — | — |
| 2023 | 77° | 60° | 69° | — | — |
| 2022 | 85° | 56° | 70° | — | — |
| 2021 | 70° | 59° | 64° | — | — |
| 2020 | 77° | 60° | 69° | — | — |
| 2019 | 70° | 61° | 65° | — | — |
| 2018 | 74° | 59° | 66° | — | — |
| 2017 | 63° | 54° | 58° | — | — |
| 2016 | 70° | 59° | 64° | — | — |
| 2015 | 64° | 54° | 59° | 1.3" | — |
| 2014warmest | 104° | 58° | 81° | — | — |
| 2013 | 75° | 59° | 67° | — | — |
| 2012 | 81° | 53° | 67° | — | — |
| 2011 | 66° | 55° | 61° | — | — |
| 2010 | 79° | 57° | 68° | — | — |
| 2009 | 78° | 57° | 68° | — | — |
| 2008 | 89° | 56° | 72° | — | — |
| 2007 | 66° | 56° | 61° | — | — |
| 2006 | 78° | 58° | 68° | — | — |
| 2005 | 89° | 56° | 72° | — | — |
| 2004 | 82° | 57° | 70° | — | — |
| 2003 | 75° | 50° | 63° | — | — |
| 2002 | 69° | 58° | 63° | — | — |
| 2001 | 80° | 74° | 77° | — | — |
| 2000 | 81° | 52° | 66° | — | — |
| 1999 | 68° | 55° | 62° | — | — |
| 1998 | 76° | 47° | 61° | — | — |
| 1997 | 97° | 57° | 77° | — | — |
| 1996 | 86° | 62° | 74° | — | — |
| 1995 | 70° | 51° | 60° | — | — |
| 1994 | 64° | 59° | 62° | — | — |
| 1993 | 85° | 60° | 72° | — | — |
| 1992 | 78° | 63° | 70° | — | — |
| 1991 | 78° | 50° | 64° | — | — |
| 1990 | 71° | 57° | 64° | — | — |
| 1989coldest | 60° | 54° | 57° | — | — |
| 1988 | 79° | 53° | 66° | — | — |
| 1987 | 71° | 59° | 65° | — | — |
| 1986 | 71° | 58° | 64° | — | — |
| 1985 | 76° | 53° | 64° | — | — |
| 1984 | 71° | 56° | 63° | — | — |
| 1983 | 81° | 54° | 67° | — | — |
| 1982 | 79° | 56° | 67° | — | — |
| 1981 | 69° | 58° | 63° | — | — |
| 1980 | 68° | 54° | 61° | — | — |
| 1979 | 69° | 57° | 63° | — | — |
| 1978 | 82° | 56° | 69° | — | — |
| 1977 | 65° | 56° | 60° | — | — |
| 1976 | 79° | 55° | 67° | — | — |
| 1975 | 72° | 56° | 64° | — | — |
| 1974 | 68° | 56° | 62° | — | — |
| 1973 | 78° | 57° | 68° | — | — |
| 1972 | 90° | 57° | 73° | — | — |
| 1971 | 72° | 55° | 63° | — | — |
55 years of data from GILLESPIE FLD