Weather on December 19
Costa Mesa, CA
55 Years of Data
Avg High
68°F
Avg Low
47°F
Warmest
1985
66°F avg
Coldest
1978
49°F avg
About This Date
December 19th in Costa Mesa, CA typically brings mild winter weather, with average highs around 68°F and lows near 47°F. Over 55 years of records, the warmest December 19th was in 1985 (66°F average), while the coldest was 1978 (49°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 24% of December 19th dates historically, with the wettest December 19th recording 3.45" 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 19th in Costa Mesa, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 51° | 59° | — | — |
| 2024 | 77° | 49° | 63° | — | — |
| 2023 | 67° | 60° | 63° | 0.13" | — |
| 2022 | 66° | 43° | 54° | — | — |
| 2021 | 65° | 44° | 54° | — | — |
| 2020 | 72° | 44° | 58° | — | — |
| 2019 | 66° | 44° | 55° | — | — |
| 2018 | 74° | 50° | 62° | — | — |
| 2017 | 69° | 47° | 58° | — | — |
| 2016 | 71° | 47° | 59° | — | — |
| 2015 | 64° | 45° | 54° | 0.41" | — |
| 2014 | 69° | 52° | 60° | — | — |
| 2013 | 60° | 47° | 53° | 0.38" | — |
| 2012 | 61° | 38° | 49° | — | — |
| 2011 | 62° | 51° | 57° | — | — |
| 2010 | 61° | 57° | 59° | 3.45" | — |
| 2009 | 80° | 47° | 63° | — | — |
| 2008 | 58° | 41° | 49° | — | — |
| 2007 | 62° | 54° | 58° | 0.38" | — |
| 2006 | 60° | 39° | 50° | — | — |
| 2005 | 78° | 46° | 62° | — | — |
| 2004 | 79° | 46° | 62° | — | — |
| 2003 | 72° | 45° | 58° | — | — |
| 2002 | 60° | 43° | 51° | — | — |
| 2001 | 64° | 43° | 53° | — | — |
| 2000 | 76° | 47° | 61° | — | — |
| 1999 | 82° | 42° | 62° | — | — |
| 1998 | 62° | 51° | 57° | 0.03" | — |
| 1997 | 69° | 51° | 60° | 0.13" | — |
| 1996 | 73° | 42° | 58° | — | — |
| 1995 | 66° | 46° | 56° | — | — |
| 1994 | 71° | 46° | 59° | — | — |
| 1993 | 67° | 49° | 58° | 0.46" | — |
| 1992 | 61° | 49° | 55° | — | — |
| 1991 | 64° | 52° | 58° | — | — |
| 1990 | 60° | 48° | 54° | 0.03" | — |
| 1989 | 68° | 50° | 59° | — | — |
| 1988 | 60° | 43° | 51° | 0.05" | — |
| 1987 | 64° | 48° | 56° | 0.08" | — |
| 1986 | 68° | 47° | 57° | — | — |
| 1985warmest | 83° | 50° | 66° | — | — |
| 1984 | 60° | 45° | 52° | 1.47" | — |
| 1983 | 62° | 46° | 54° | — | — |
| 1982 | 74° | 43° | 58° | — | — |
| 1981 | 71° | 51° | 61° | — | — |
| 1980 | 65° | 49° | 57° | — | — |
| 1979 | 70° | 45° | 57° | — | — |
| 1978coldest | 56° | 43° | 49° | 0.64" | — |
| 1977 | 68° | 43° | 55° | — | — |
| 1976 | 71° | 49° | 60° | — | — |
| 1975 | 69° | 39° | 54° | — | — |
| 1974 | 73° | 43° | 58° | — | — |
| 1973 | 78° | 45° | 61° | — | — |
| 1972 | 68° | 48° | 58° | — | — |
| 1971 | 61° | 42° | 51° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP