Weather on April 21
El Cajon, CA
55 Years of Data
Avg High
76°F
Avg Low
51°F
Warmest
2009
79°F avg
Coldest
1971
54°F avg
About This Date
April 21st in El Cajon, CA typically brings pleasant spring weather, with average highs around 76°F and lows near 51°F. Over 55 years of records, the warmest April 21st was in 2009 (79°F average), while the coldest was 1971 (54°F). Rain or other precipitation has occurred on about 9% of April 21st dates historically.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for April 21st in El Cajon, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 49° | 61° | — | — |
| 2024 | 76° | 56° | 66° | — | — |
| 2023 | 89° | 49° | 69° | — | — |
| 2022 | 73° | 47° | 60° | — | — |
| 2021 | 61° | 56° | 58° | — | — |
| 2020 | 70° | 57° | 63° | — | — |
| 2019 | 67° | 57° | 62° | — | — |
| 2018 | 87° | 49° | 68° | — | — |
| 2017 | 92° | 54° | 73° | — | — |
| 2016 | 83° | 52° | 67° | — | — |
| 2015 | 70° | 59° | 64° | — | — |
| 2014 | 82° | 56° | 69° | — | — |
| 2013 | 81° | 51° | 66° | — | — |
| 2012 | 81° | 55° | 68° | — | — |
| 2011 | 70° | 56° | 63° | — | — |
| 2010 | 78° | 47° | 62° | — | — |
| 2009warmest | 98° | 59° | 79° | — | — |
| 2008 | 71° | 49° | 60° | — | — |
| 2007 | 65° | 47° | 56° | — | — |
| 2006 | 75° | 55° | 65° | — | — |
| 2005 | 76° | 49° | 62° | — | — |
| 2004 | 70° | 55° | 62° | — | — |
| 2003 | 69° | 54° | 61° | — | — |
| 2002 | 79° | 43° | 61° | — | — |
| 2001 | 69° | 43° | 56° | — | — |
| 2000 | 83° | 47° | 65° | — | — |
| 1999 | 72° | 63° | 67° | — | — |
| 1998 | 81° | 53° | 67° | — | — |
| 1997 | 83° | 56° | 69° | — | — |
| 1996 | 73° | 50° | 62° | — | — |
| 1995 | 65° | 50° | 57° | — | — |
| 1994 | 72° | 57° | 64° | — | — |
| 1993 | 88° | 52° | 70° | — | — |
| 1992 | 85° | 56° | 70° | — | — |
| 1991 | — | 54° | — | — | — |
| 1990 | 70° | 59° | 64° | — | — |
| 1989 | 75° | 57° | 66° | — | — |
| 1988 | 64° | 51° | 58° | 1.3" | — |
| 1987 | 93° | 40° | 66° | — | — |
| 1986 | 86° | 46° | 66° | — | — |
| 1985 | 64° | 51° | 58° | 0.1" | — |
| 1984 | 80° | 43° | 61° | — | — |
| 1983 | 67° | 52° | 59° | 1.3" | — |
| 1982 | 85° | 53° | 69° | — | — |
| 1981 | 77° | 48° | 63° | — | — |
| 1980 | 70° | 53° | 61° | 0.03" | — |
| 1979 | 80° | 44° | 62° | — | — |
| 1978 | 67° | 52° | 59° | — | — |
| 1977 | 87° | 45° | 66° | — | — |
| 1976 | 74° | 47° | 60° | — | — |
| 1975 | 70° | 52° | 61° | — | — |
| 1974 | 81° | 44° | 62° | — | — |
| 1973 | 77° | 39° | 58° | — | — |
| 1972 | 77° | 41° | 59° | — | — |
| 1971coldest | 59° | 48° | 54° | 0.1" | — |
55 years of data from GILLESPIE FLD