Weather on May 17
El Cajon, CA
55 Years of Data
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 56 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 4.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
Planning for May 17th in El Cajon, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 72° | 57° | 64° | — | — |
| 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° | — | — |
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.