Weather on December 1
El Cajon, CA
55 Years of Data
Avg High
71°F
Avg Low
42°F
Warmest
2008
70°F avg
Coldest
1991
46°F avg
About This Date
December 1st in El Cajon, CA typically brings pleasant winter weather, with average highs around 71°F and lows near 42°F — a 29°F daily swing. Over 54 years of records, the warmest December 1st was in 2008 (70°F average), while the coldest was 1991 (46°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 13% of December 1st dates historically, with the wettest December 1st recording 1.52" of rain. The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for December 1st in El Cajon, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 46° | 58° | — | — |
| 2024 | 76° | 48° | 62° | — | — |
| 2023 | 67° | 50° | 58° | 0.1" | — |
| 2022 | 59° | 52° | 55° | — | — |
| 2021 | 84° | 46° | 65° | — | — |
| 2020 | 80° | 38° | 59° | — | — |
| 2019 | 69° | 42° | 56° | — | — |
| 2018 | 64° | 52° | 58° | — | — |
| 2017 | 78° | 49° | 63° | — | — |
| 2016 | 65° | 42° | 53° | — | — |
| 2015 | 72° | 38° | 55° | — | — |
| 2014 | 73° | 49° | 61° | — | — |
| 2013 | 79° | 46° | 62° | — | — |
| 2012 | 69° | 57° | 63° | — | — |
| 2011 | 61° | 48° | 54° | — | — |
| 2010 | 77° | 31° | 54° | — | — |
| 2009 | 68° | 39° | 54° | — | — |
| 2008warmest | 84° | 55° | 70° | — | — |
| 2007 | 62° | 51° | 57° | 1.52" | — |
| 2006 | 74° | 48° | 61° | — | — |
| 2005 | 77° | 45° | 61° | — | — |
| 2004 | 65° | 31° | 48° | — | — |
| 2003 | 71° | — | — | — | — |
| 2001 | 69° | 34° | 51° | — | — |
| 2000 | 66° | 42° | 54° | — | — |
| 1999 | 67° | 52° | 59° | — | — |
| 1998 | 65° | 48° | 56° | 0.1" | — |
| 1997 | 64° | 45° | 54° | — | — |
| 1996 | 71° | 37° | 54° | — | — |
| 1995 | 86° | 44° | 65° | 0.08" | — |
| 1994 | 76° | 35° | 55° | — | — |
| 1993 | 74° | 43° | 58° | — | — |
| 1992 | 74° | 34° | 54° | — | — |
| 1991coldest | 62° | 31° | 46° | — | — |
| 1990 | 73° | 38° | 55° | — | — |
| 1989 | 76° | 35° | 55° | — | — |
| 1988 | 78° | 38° | 58° | — | — |
| 1987 | 68° | 44° | 56° | — | — |
| 1986 | 78° | 37° | 58° | — | — |
| 1985 | 63° | 44° | 53° | — | — |
| 1984 | 70° | 39° | 54° | — | — |
| 1983 | 67° | 51° | 59° | 0.58" | — |
| 1982 | 60° | 46° | 53° | 0.69" | — |
| 1981 | 74° | 39° | 56° | — | — |
| 1980 | 68° | 50° | 59° | — | — |
| 1979 | 82° | 39° | 61° | — | — |
| 1978 | 62° | 42° | 52° | — | — |
| 1977 | 81° | 43° | 62° | — | — |
| 1976 | 82° | 34° | 58° | — | — |
| 1975 | 73° | 33° | 53° | — | — |
| 1974 | 71° | 38° | 54° | — | — |
| 1973 | 68° | 39° | 54° | 0.05" | — |
| 1972 | 80° | 35° | 58° | — | — |
| 1971 | 66° | 39° | 53° | — | — |
54 years of data from GILLESPIE FLD