Weather on December 31
El Cajon, CA
55 Years of Data
Avg High
66°F
Avg Low
43°F
Warmest
1997
67°F avg
Coldest
1972
45°F avg
About This Date
December 31st in El Cajon, CA typically brings mild winter weather, with average highs around 66°F and lows near 43°F. Over 54 years of records, the warmest December 31st was in 1997 (67°F average), while the coldest was 1972 (45°F). Rain or other precipitation has occurred on about 22% of December 31st dates historically.
The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
Planning for December 31st in El Cajon, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 57° | 64° | 1.14" | — |
| 2024 | 63° | 42° | 52° | — | — |
| 2023 | 61° | 50° | 55° | 0.08" | — |
| 2022 | 60° | 54° | 57° | 0.05" | — |
| 2021 | 61° | 50° | 55° | — | — |
| 2020 | 64° | 36° | 50° | — | — |
| 2019 | 70° | 43° | 56° | — | — |
| 2018 | 59° | 51° | 55° | 0.03" | — |
| 2017 | 73° | 44° | 59° | — | — |
| 2016 | 58° | 54° | 56° | 0.64" | — |
| 2015 | 68° | 33° | 51° | — | — |
| 2014 | 51° | 41° | 46° | 0.71" | — |
| 2013 | 73° | 35° | 54° | — | — |
| 2012 | 60° | 34° | 47° | — | — |
| 2011 | 80° | 42° | 61° | — | — |
| 2010 | 57° | 33° | 45° | — | — |
| 2009 | 72° | 40° | 56° | 0.25" | — |
| 2008 | 78° | 39° | 59° | — | — |
| 2007 | 77° | 37° | 57° | — | — |
| 2006 | 62° | 44° | 53° | — | — |
| 2005 | 69° | 43° | 56° | 0.89" | — |
| 2004 | 58° | 46° | 52° | 1.52" | — |
| 2003 | 66° | 46° | 56° | — | — |
| 2001 | 63° | 56° | 59° | — | — |
| 2000 | 78° | 36° | 57° | — | — |
| 1999 | 62° | 50° | 56° | — | — |
| 1998 | 68° | 45° | 56° | — | — |
| 1997warmest | 81° | 54° | 67° | — | — |
| 1996 | 67° | 55° | 61° | — | — |
| 1995 | 69° | 45° | 57° | — | — |
| 1994 | 63° | 40° | 51° | — | — |
| 1993 | 73° | 38° | 55° | — | — |
| 1992 | 63° | 38° | 50° | — | — |
| 1991 | 67° | 39° | 53° | — | — |
| 1990 | 68° | 31° | 49° | — | — |
| 1989 | 74° | 36° | 55° | — | — |
| 1988 | 63° | 58° | 60° | — | — |
| 1987 | 61° | 34° | 47° | — | — |
| 1986 | 68° | 40° | 54° | — | — |
| 1985 | 73° | 48° | 61° | — | — |
| 1984 | 65° | 38° | 51° | — | — |
| 1983 | 74° | 44° | 59° | — | — |
| 1982 | 64° | 34° | 49° | — | — |
| 1981 | 60° | 54° | 57° | 0.3" | — |
| 1980 | 83° | 44° | 63° | — | — |
| 1979 | 72° | 42° | 57° | — | — |
| 1978 | 64° | 37° | 51° | — | — |
| 1977 | 63° | 52° | 57° | — | — |
| 1976 | 59° | 52° | 55° | 3.23" | — |
| 1975 | 58° | 51° | 54° | — | — |
| 1974 | 60° | 41° | 51° | 0.08" | — |
| 1973 | 63° | 43° | 53° | — | — |
| 1972coldest | 62° | 29° | 45° | — | — |
| 1971 | 65° | 31° | 48° | — | — |
54 years of data from GILLESPIE FLD