Weather on May 17
El Cajon, CA
55 Years of Data
Avg High
76°F
Avg Low
56°F
Warmest
2008
79°F avg
Coldest
1994
59°F avg
About This Date
May 17th in El Cajon, CA typically brings pleasant spring weather, with average highs around 76°F and lows near 56°F. Over 55 years of records, the warmest May 17th was in 2008 (79°F average), while the coldest was 1994 (59°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 7% of May 17th dates historically. The last decade has been 4.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.6°F cooler on this date compared to 20-30 years ago.
Planning for May 17th in El Cajon, CA? Great weather for outdoor activities.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 56° | 61° | 0.28" | — |
| 2024 | 74° | 57° | 65° | 0.08" | — |
| 2023 | 72° | 57° | 64° | — | — |
| 2022 | 70° | 58° | 64° | — | — |
| 2021 | 67° | 56° | 61° | 0.03" | — |
| 2020 | 76° | 58° | 67° | — | — |
| 2019 | 69° | 53° | 61° | — | — |
| 2018 | 68° | 55° | 62° | — | — |
| 2017 | 69° | 56° | 62° | — | — |
| 2016 | 67° | 60° | 63° | — | — |
| 2015 | 72° | 54° | 63° | — | — |
| 2014 | 84° | 59° | 72° | — | — |
| 2013 | 72° | 58° | 65° | — | — |
| 2012 | 76° | 58° | 67° | — | — |
| 2011 | 64° | 53° | 59° | 0.25" | — |
| 2010 | 68° | 54° | 61° | — | — |
| 2009 | 84° | 56° | 70° | — | — |
| 2008warmest | 98° | 61° | 79° | — | — |
| 2007 | 67° | 55° | 61° | — | — |
| 2006 | 78° | 63° | 70° | — | — |
| 2005 | 75° | 57° | 66° | — | — |
| 2004 | 87° | 58° | 72° | — | — |
| 2003 | 80° | 56° | 68° | — | — |
| 2002 | 78° | 57° | 68° | — | — |
| 2001 | 77° | 56° | 66° | — | — |
| 2000 | 74° | 49° | 61° | — | — |
| 1999 | 80° | 50° | 65° | — | — |
| 1998 | 79° | 49° | 64° | — | — |
| 1997 | 84° | 62° | 73° | — | — |
| 1996 | 82° | 64° | 73° | — | — |
| 1995 | 71° | 51° | 61° | — | — |
| 1994coldest | 67° | 52° | 59° | — | — |
| 1993 | 80° | 62° | 71° | — | — |
| 1992 | 78° | 62° | 70° | — | — |
| 1991 | 76° | 52° | 64° | — | — |
| 1990 | 77° | 51° | 64° | — | — |
| 1989 | 71° | 57° | 64° | — | — |
| 1988 | 69° | 58° | 63° | — | — |
| 1987 | 76° | 62° | 69° | — | — |
| 1986 | 88° | 55° | 71° | — | — |
| 1985 | 71° | 56° | 63° | — | — |
| 1984 | 78° | 52° | 65° | — | — |
| 1983 | 89° | 51° | 70° | — | — |
| 1982 | 89° | 56° | 72° | — | — |
| 1981 | 83° | 48° | 65° | — | — |
| 1980 | 77° | 56° | 66° | — | — |
| 1979 | 75° | 56° | 65° | — | — |
| 1978 | 89° | 48° | 69° | — | — |
| 1977 | 69° | 54° | 61° | — | — |
| 1976 | 79° | 55° | 67° | — | — |
| 1975 | 73° | 57° | 65° | — | — |
| 1974 | 67° | 53° | 60° | — | — |
| 1973 | 78° | 55° | 67° | — | — |
| 1972 | 72° | 57° | 64° | — | — |
| 1971 | 80° | 55° | 68° | — | — |
55 years of data from GILLESPIE FLD