Weather on May 15
El Cajon, CA
55 Years of Data
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 56 years of records, the warmest May 15th was in 2014 (81°F average), while the coldest was 1989 (57°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 15th dates historically, with the wettest May 15th recording 1.3" of rain. The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
Planning for May 15th in El Cajon, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 77° | 60° | 69° | — | — |
| 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° | — | — |
El Cajon, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
El Cajon, CA Monthly Precipitation
Average rainfall per month, in inches.
El Cajon, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit El Cajon, CA
El Cajon, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.