Weather on May 31
El Cajon, CA
55 Years of Data
Avg High
77°F
Avg Low
57°F
Warmest
1997
76°F avg
Coldest
1980
59°F avg
About This Date
May 31st in El Cajon, CA typically brings pleasant spring weather, with average highs around 77°F and lows near 57°F. Over 55 years of records, the warmest May 31st was in 1997 (76°F average), while the coldest was 1980 (59°F) — a 17°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
Planning for May 31st in El Cajon, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 60° | 72° | — | — |
| 2024 | 75° | 57° | 66° | — | — |
| 2023 | 63° | 56° | 59° | — | — |
| 2022 | 74° | 57° | 65° | — | — |
| 2021 | 77° | 58° | 67° | — | — |
| 2020 | 82° | 59° | 71° | — | — |
| 2019 | 73° | 60° | 67° | — | — |
| 2018 | 74° | 61° | 67° | — | — |
| 2017 | 71° | 60° | 66° | — | — |
| 2016 | 73° | 61° | 67° | — | — |
| 2015 | 78° | 62° | 70° | — | — |
| 2014 | 86° | 57° | 72° | — | — |
| 2013 | 80° | 60° | 70° | — | — |
| 2012 | 84° | 57° | 71° | — | — |
| 2011 | 77° | 51° | 64° | — | — |
| 2010 | 74° | 56° | 65° | — | — |
| 2009 | 69° | 59° | 64° | — | — |
| 2008 | 76° | 51° | 63° | — | — |
| 2007 | 69° | 56° | 62° | — | — |
| 2006 | 88° | 50° | 69° | — | — |
| 2005 | 79° | 58° | 68° | — | — |
| 2004 | 93° | 55° | 74° | — | — |
| 2003 | 77° | 60° | 69° | — | — |
| 2002 | 80° | 59° | 70° | — | — |
| 2001 | 87° | 58° | 72° | — | — |
| 2000 | 79° | 60° | 69° | — | — |
| 1999 | 82° | 55° | 69° | — | — |
| 1998 | 77° | 52° | 64° | — | — |
| 1997warmest | 90° | 63° | 76° | — | — |
| 1996 | 80° | 57° | 69° | — | — |
| 1995 | 80° | 58° | 69° | — | — |
| 1994 | 76° | 60° | 68° | — | — |
| 1993 | 78° | 62° | 70° | — | — |
| 1992 | 83° | 65° | 74° | — | — |
| 1991 | 70° | 53° | 61° | — | — |
| 1990 | 72° | 54° | 63° | — | — |
| 1989 | 72° | 54° | 63° | — | — |
| 1988 | 78° | 47° | 62° | — | — |
| 1987 | 81° | 54° | 67° | — | — |
| 1986 | 77° | 57° | 67° | — | — |
| 1985 | 70° | 57° | 63° | — | — |
| 1984 | 77° | 59° | 68° | — | — |
| 1983 | 68° | 58° | 63° | — | — |
| 1982 | 76° | 54° | 65° | — | — |
| 1981 | 79° | 61° | 70° | — | — |
| 1980coldest | 66° | 52° | 59° | — | — |
| 1979 | 72° | 60° | 66° | — | — |
| 1978 | 75° | 59° | 67° | — | — |
| 1977 | 88° | 57° | 72° | — | — |
| 1976 | 79° | 58° | 68° | — | — |
| 1975 | 82° | 59° | 71° | — | — |
| 1974 | 70° | 57° | 63° | — | — |
| 1973 | 65° | 59° | 62° | — | — |
| 1972 | 88° | 61° | 74° | — | — |
| 1971 | 68° | 56° | 62° | — | — |
55 years of data from GILLESPIE FLD