Weather on December 20
Oceanside, CA
55 Years of Data
Avg High
65°F
Avg Low
42°F
Warmest
2023
63°F avg
Coldest
1992
46°F avg
About This Date
December 20th in Oceanside, CA typically brings mild winter weather, with average highs around 65°F and lows near 42°F. Over 53 years of records, the warmest December 20th was in 2023 (63°F average), while the coldest was 1992 (46°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 21% of December 20th dates historically, with the wettest December 20th recording 2.11" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 20th in Oceanside, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 64° | 49° | 56° | — | — |
| 2024 | 67° | 35° | 51° | — | — |
| 2023warmest | 69° | 57° | 63° | 0.56" | — |
| 2022 | 64° | 35° | 50° | — | — |
| 2021 | 65° | 31° | 48° | — | — |
| 2020 | 76° | 32° | 54° | — | — |
| 2019 | 75° | 36° | 55° | — | — |
| 2018 | 69° | 38° | 53° | — | — |
| 2017 | 60° | 43° | 51° | — | — |
| 2016 | 75° | 39° | 57° | — | — |
| 2015 | 62° | 39° | 51° | — | — |
| 2014 | 65° | 43° | 54° | — | — |
| 2013 | 62° | 35° | 49° | — | — |
| 2012 | 70° | 30° | 50° | — | — |
| 2011 | 65° | 41° | 53° | — | — |
| 2010 | 61° | 56° | 58° | 2.08" | — |
| 2009 | 71° | 44° | 58° | — | — |
| 2008 | 59° | 37° | 48° | — | — |
| 2007 | 61° | 50° | 55° | 0.05" | — |
| 2006 | 61° | 33° | 47° | — | — |
| 2005 | 72° | 42° | 57° | — | — |
| 2004 | 68° | 36° | 52° | — | — |
| 2003 | 66° | 41° | 54° | — | — |
| 2002 | 59° | 45° | 52° | 2.11" | — |
| 2001 | 60° | 36° | 48° | 0.15" | — |
| 2000 | 70° | 31° | 50° | — | — |
| 1999 | 75° | 35° | 55° | — | — |
| 1998 | 57° | 52° | 54° | 0.2" | — |
| 1997 | 73° | 44° | 59° | — | — |
| 1996 | 59° | 42° | 51° | — | — |
| 1995 | 59° | 46° | 53° | — | — |
| 1994 | 65° | 40° | 52° | — | — |
| 1993 | 74° | 46° | 60° | — | — |
| 1992coldest | 57° | 36° | 46° | — | — |
| 1991 | 72° | 44° | 58° | — | — |
| 1990 | 57° | 47° | 52° | 0.23" | — |
| 1989 | 61° | 41° | 51° | — | — |
| 1988 | 60° | 44° | 52° | 0.03" | — |
| 1987 | 66° | 41° | 54° | — | — |
| 1985 | 67° | 46° | 56° | — | — |
| 1984 | 59° | 49° | 54° | 1.5" | — |
| 1983 | 65° | 49° | 57° | — | — |
| 1982 | 66° | 39° | 53° | — | — |
| 1981 | 63° | 48° | 55° | 0.2" | — |
| 1980 | 62° | 43° | 52° | — | — |
| 1979 | 69° | 44° | 57° | — | — |
| 1977 | 72° | 41° | 56° | — | — |
| 1976 | 68° | 33° | 51° | — | — |
| 1975 | 56° | 42° | 49° | 0.71" | — |
| 1974 | 66° | 45° | 55° | — | — |
| 1973 | 76° | 46° | 61° | — | — |
| 1972 | 68° | 47° | 57° | — | — |
| 1971 | 62° | 37° | 50° | — | — |
53 years of data from OCEANSIDE MUNI AP