Weather on December 31
Oceanside, CA
55 Years of Data
Avg High
64°F
Avg Low
42°F
Warmest
1996
62°F avg
Coldest
2014
43°F avg
About This Date
December 31st in Oceanside, CA typically brings mild winter weather, with average highs around 64°F and lows near 42°F. Over 53 years of records, the warmest December 31st was in 1996 (62°F average), while the coldest was 2014 (43°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 21% of December 31st dates historically, with the wettest December 31st recording 1.83" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for December 31st in Oceanside, CA? Great weather for outdoor activities.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 57° | 62° | 0.64" | — |
| 2024 | 63° | 48° | 55° | — | — |
| 2023 | 62° | 46° | 54° | — | — |
| 2022 | 61° | 56° | 58° | 1.12" | — |
| 2021 | 62° | 45° | 53° | — | — |
| 2020 | 63° | 33° | 48° | — | — |
| 2019 | 74° | 42° | 58° | — | — |
| 2018 | 62° | 37° | 50° | — | — |
| 2017 | 66° | 39° | 53° | — | — |
| 2016 | 59° | 50° | 55° | 1.4" | — |
| 2015 | 68° | 35° | 52° | — | — |
| 2014coldest | 54° | 32° | 43° | 0.46" | — |
| 2013 | 67° | 31° | 49° | — | — |
| 2012 | 61° | 32° | 46° | — | — |
| 2011 | 66° | 38° | 52° | — | — |
| 2010 | 56° | 34° | 45° | — | — |
| 2009 | 69° | 42° | 56° | — | — |
| 2008 | 62° | 33° | 48° | 0.03" | — |
| 2007 | 66° | 34° | 50° | — | — |
| 2006 | 62° | 32° | 47° | — | — |
| 2005 | 62° | 42° | 52° | 0.76" | — |
| 2004 | 58° | 44° | 51° | 1.83" | — |
| 2003 | 65° | 30° | 47° | — | — |
| 2002 | 60° | 40° | 50° | — | — |
| 2001 | 61° | 51° | 56° | — | — |
| 2000 | 66° | 32° | 49° | — | — |
| 1999 | 60° | 43° | 51° | 0.15" | — |
| 1998 | 59° | 46° | 53° | — | — |
| 1997 | 72° | 50° | 61° | — | — |
| 1996warmest | 68° | 55° | 62° | — | — |
| 1995 | 65° | 42° | 53° | — | — |
| 1994 | 58° | 43° | 50° | — | — |
| 1993 | 66° | 43° | 54° | — | — |
| 1992 | 59° | 41° | 50° | — | — |
| 1991 | 66° | 43° | 54° | — | — |
| 1990 | 69° | 39° | 54° | — | — |
| 1989 | 65° | 40° | 52° | — | — |
| 1988 | 56° | 37° | 46° | — | — |
| 1987 | 64° | 38° | 51° | — | — |
| 1986 | — | 35° | — | — | — |
| 1985 | 63° | 47° | 55° | — | — |
| 1984 | 60° | 42° | 51° | — | — |
| 1983 | 69° | 49° | 59° | — | — |
| 1982 | 64° | 34° | 49° | — | — |
| 1981 | 60° | 55° | 58° | 0.15" | — |
| 1980 | 76° | 46° | 61° | — | — |
| 1979 | 66° | 47° | 56° | — | — |
| 1977 | 62° | 53° | 58° | 0.03" | — |
| 1976 | 61° | 39° | 50° | 0.71" | — |
| 1975 | 63° | 50° | 56° | — | — |
| 1974 | 64° | 44° | 54° | — | — |
| 1972 | 65° | 35° | 50° | — | — |
| 1971 | 64° | 41° | 53° | — | — |
53 years of data from OCEANSIDE MUNI AP