Weather on December 7
Costa Mesa, CA
55 Years of Data
Avg High
69°F
Avg Low
49°F
Warmest
2017
69°F avg
Coldest
1978
49°F avg
About This Date
December 7th in Costa Mesa, CA typically brings mild winter weather, with average highs around 69°F and lows near 49°F. Over 55 years of records, the warmest December 7th was in 2017 (69°F average), while the coldest was 1978 (49°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 22% of December 7th dates historically, with the wettest December 7th recording 5.08" of rain. The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
Planning for December 7th in Costa Mesa, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 49° | 60° | — | — |
| 2024 | 78° | 47° | 62° | — | — |
| 2023 | 67° | 56° | 61° | — | — |
| 2022 | 65° | 50° | 57° | — | — |
| 2021 | 66° | 56° | 61° | 0.03" | — |
| 2020 | 77° | 47° | 62° | — | — |
| 2019 | 69° | 61° | 65° | — | — |
| 2018 | 70° | 51° | 60° | — | — |
| 2017warmest | 80° | 58° | 69° | — | — |
| 2016 | 64° | 51° | 58° | — | — |
| 2015 | 76° | 47° | 61° | — | — |
| 2014 | 77° | 57° | 67° | 0.03" | — |
| 2013 | 59° | 46° | 53° | 0.36" | — |
| 2012 | 66° | 55° | 61° | — | — |
| 2011 | 67° | 38° | 52° | — | — |
| 2010 | 79° | 50° | 64° | — | — |
| 2009 | 55° | 44° | 50° | 3.2" | — |
| 2008 | 65° | 57° | 61° | — | — |
| 2007 | 61° | 53° | 57° | 0.69" | — |
| 2006 | 72° | 44° | 58° | — | — |
| 2005 | 66° | 43° | 54° | — | — |
| 2004 | 59° | 48° | 54° | 0.03" | — |
| 2003 | 62° | 57° | 60° | 0.51" | — |
| 2002 | 66° | 53° | 60° | — | — |
| 2001 | 81° | 45° | 63° | — | — |
| 2000 | 74° | 55° | 64° | — | — |
| 1999 | 63° | 45° | 54° | — | — |
| 1998 | 65° | 39° | 52° | — | — |
| 1997 | 64° | 52° | 58° | 2.59" | — |
| 1996 | 69° | 45° | 57° | — | — |
| 1995 | 72° | 57° | 64° | — | — |
| 1994 | 66° | 51° | 59° | — | — |
| 1993 | 67° | 45° | 56° | — | — |
| 1992 | 62° | 52° | 57° | 5.08" | — |
| 1991 | 62° | 47° | 54° | — | — |
| 1990 | 83° | 46° | 64° | — | — |
| 1989 | 82° | 48° | 65° | — | — |
| 1988 | 76° | 43° | 59° | — | — |
| 1987 | 68° | 56° | 62° | 0.2" | — |
| 1986 | 69° | 49° | 59° | 0.13" | — |
| 1985 | 71° | 48° | 60° | — | — |
| 1984 | 70° | 53° | 61° | — | — |
| 1983 | 74° | 43° | 58° | — | — |
| 1982 | 61° | 49° | 55° | — | — |
| 1981 | 74° | 48° | 61° | — | — |
| 1980 | 60° | 45° | 52° | — | — |
| 1979 | 82° | 54° | 68° | — | — |
| 1978coldest | 55° | 43° | 49° | — | — |
| 1977 | 69° | 51° | 60° | — | — |
| 1976 | 79° | 43° | 61° | — | — |
| 1975 | 76° | 43° | 59° | — | — |
| 1974 | 70° | 41° | 55° | — | — |
| 1973 | 81° | 43° | 62° | — | — |
| 1972 | 60° | 46° | 53° | 0.76" | — |
| 1971 | 62° | 43° | 52° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP