Weather on September 28
El Cajon, CA
55 Years of Data
Avg High
85°F
Avg Low
60°F
Warmest
2010
82°F avg
Coldest
1986
62°F avg
About This Date
September 28th in El Cajon, CA typically brings warm fall weather, with average highs around 85°F and lows near 60°F — a 25°F daily swing. Over 53 years of records, the warmest September 28th was in 2010 (82°F average), while the coldest was 1986 (62°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 28th dates historically. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for September 28th in El Cajon, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 66° | 73° | — | — |
| 2024 | 85° | 56° | 70° | — | — |
| 2023 | 77° | 57° | 67° | — | — |
| 2022 | 93° | 64° | 79° | — | — |
| 2021 | 76° | 62° | 69° | — | — |
| 2020 | 95° | 69° | 82° | — | — |
| 2019 | 73° | 64° | 69° | 0.15" | — |
| 2018 | 81° | 65° | 73° | — | — |
| 2017 | 93° | 55° | 74° | — | — |
| 2016 | 95° | 66° | 81° | — | — |
| 2015 | 94° | 65° | 79° | — | — |
| 2014 | 77° | 61° | 69° | — | — |
| 2013 | 81° | 50° | 65° | — | — |
| 2012 | 93° | 60° | 77° | — | — |
| 2011 | 79° | 61° | 70° | — | — |
| 2010warmest | 90° | 75° | 82° | — | — |
| 2009 | 88° | 61° | 74° | — | — |
| 2008 | 93° | 61° | 77° | — | — |
| 2007 | 69° | 61° | 65° | — | — |
| 2006 | 90° | 55° | 72° | — | — |
| 2005 | 93° | 57° | 75° | — | — |
| 2004 | 91° | 59° | 75° | — | — |
| 2003 | 79° | 61° | 70° | — | — |
| 2002 | 68° | 62° | 65° | — | — |
| 2001 | 94° | 58° | 76° | — | — |
| 2000 | 81° | 66° | 73° | — | — |
| 1999 | 87° | 61° | 74° | — | — |
| 1998 | 74° | 55° | 64° | — | — |
| 1996 | 91° | 59° | 75° | — | — |
| 1995 | 77° | 69° | 73° | — | — |
| 1993 | 100° | 54° | 77° | — | — |
| 1992 | 95° | 61° | 78° | — | — |
| 1991 | 84° | 64° | 74° | — | — |
| 1990 | 80° | 58° | 69° | — | — |
| 1989 | 90° | 61° | 75° | — | — |
| 1988 | 91° | 54° | 72° | — | — |
| 1987 | 86° | 58° | 72° | — | — |
| 1986coldest | 71° | 54° | 62° | — | — |
| 1985 | 73° | 63° | 68° | — | — |
| 1984 | 94° | 64° | 79° | — | — |
| 1983 | 79° | 60° | 69° | — | — |
| 1982 | 77° | 50° | 64° | — | — |
| 1981 | 85° | 58° | 71° | — | — |
| 1980 | 86° | 59° | 73° | — | — |
| 1979 | 82° | 64° | 73° | — | — |
| 1978 | — | 62° | — | — | — |
| 1977 | 81° | 65° | 73° | — | — |
| 1976 | 81° | 66° | 73° | — | — |
| 1975 | 83° | 59° | 71° | — | — |
| 1974 | 80° | 54° | 67° | — | — |
| 1973 | 98° | 53° | 76° | — | — |
| 1972 | 82° | 64° | 73° | — | — |
| 1971 | 79° | 47° | 63° | — | — |
53 years of data from GILLESPIE FLD