Weather on September 19
El Cajon, CA
55 Years of Data
Avg High
84°F
Avg Low
61°F
Warmest
1979
85°F avg
Coldest
1989
62°F avg
About This Date
September 19th in El Cajon, CA typically brings warm fall weather, with average highs around 84°F and lows near 61°F. Over 54 years of records, the warmest September 19th was in 1979 (85°F average), while the coldest was 1989 (62°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 19th dates historically. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for September 19th in El Cajon, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 67° | 77° | — | — |
| 2024 | 76° | 63° | 69° | — | — |
| 2023 | 79° | 55° | 67° | — | — |
| 2022 | 84° | 59° | 72° | — | — |
| 2021 | 82° | 59° | 71° | — | — |
| 2020 | 95° | 64° | 80° | — | — |
| 2019 | 79° | 59° | 69° | — | — |
| 2018 | 85° | 60° | 72° | — | — |
| 2017 | 79° | 66° | 72° | — | — |
| 2016 | 90° | 68° | 79° | — | — |
| 2015 | 90° | 64° | 77° | — | — |
| 2014 | 85° | 70° | 77° | — | — |
| 2013 | 79° | 60° | 69° | — | — |
| 2012 | 88° | 62° | 75° | — | — |
| 2011 | 83° | 58° | 70° | — | — |
| 2010 | 85° | 54° | 69° | — | — |
| 2009 | 90° | 62° | 76° | — | — |
| 2008 | 91° | 64° | 78° | — | — |
| 2007 | 69° | 61° | 65° | — | — |
| 2006 | 95° | 54° | 74° | — | — |
| 2005 | 78° | 57° | 68° | — | — |
| 2004 | 80° | 62° | 71° | — | — |
| 2003 | 91° | 57° | 74° | — | — |
| 2002 | 85° | 56° | 70° | — | — |
| 2001 | 84° | 60° | 72° | — | — |
| 2000 | 88° | 63° | 75° | — | — |
| 1999 | 71° | 56° | 63° | — | — |
| 1998 | 74° | 61° | 67° | — | — |
| 1996 | 86° | 61° | 73° | — | — |
| 1995 | 87° | 59° | 73° | — | — |
| 1994 | 80° | 66° | 73° | — | — |
| 1993 | 82° | 53° | 68° | — | — |
| 1992 | 94° | 61° | 77° | — | — |
| 1991 | 88° | 60° | 74° | — | — |
| 1990 | 74° | 61° | 67° | — | — |
| 1989coldest | 69° | 55° | 62° | 0.28" | — |
| 1988 | 76° | 55° | 65° | — | — |
| 1987 | 84° | 58° | 71° | — | — |
| 1986 | 73° | 58° | 65° | — | — |
| 1985 | 77° | 59° | 68° | — | — |
| 1984 | 98° | 71° | 85° | — | — |
| 1983 | 91° | 69° | 80° | — | — |
| 1982 | 84° | 60° | 72° | — | — |
| 1981 | 98° | 65° | 81° | — | — |
| 1980 | 84° | 63° | 73° | — | — |
| 1979warmest | 102° | 68° | 85° | — | — |
| 1978 | 87° | 57° | 72° | — | — |
| 1977 | 81° | 52° | 66° | — | — |
| 1976 | 78° | 65° | 71° | — | — |
| 1975 | 92° | 60° | 76° | — | — |
| 1974 | 83° | 63° | 73° | — | — |
| 1973 | 79° | 53° | 66° | — | — |
| 1972 | 77° | 54° | 65° | — | — |
| 1971 | 92° | 63° | 77° | — | — |
54 years of data from GILLESPIE FLD