Weather on December 6
Costa Mesa, CA
55 Years of Data
Avg High
69°F
Avg Low
48°F
Warmest
1979
72°F avg
Coldest
1978
48°F avg
About This Date
December 6th in Costa Mesa, CA typically brings mild winter weather, with average highs around 69°F and lows near 48°F. Over 55 years of records, the warmest December 6th was in 1979 (72°F average), while the coldest was 1978 (48°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 16% of December 6th dates historically, with the wettest December 6th recording 8.81" of rain. The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
Planning for December 6th in Costa Mesa, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 47° | 58° | — | — |
| 2024 | 68° | 50° | 59° | — | — |
| 2023 | 74° | 53° | 63° | — | — |
| 2022 | 63° | 54° | 58° | 0.03" | — |
| 2021 | 65° | 50° | 57° | — | — |
| 2020 | 73° | 42° | 58° | — | — |
| 2019 | 69° | 54° | 61° | 0.41" | — |
| 2018 | 61° | 55° | 58° | 8.23" | — |
| 2017 | 80° | 55° | 68° | — | — |
| 2016 | 65° | 52° | 58° | — | — |
| 2015 | 74° | 49° | 61° | — | — |
| 2014 | 73° | 59° | 66° | — | — |
| 2013 | 62° | 48° | 55° | — | — |
| 2012 | 68° | 59° | 64° | — | — |
| 2011 | 67° | 40° | 53° | — | — |
| 2010 | 70° | 54° | 62° | 0.46" | — |
| 2009 | 58° | 50° | 54° | — | — |
| 2008 | 75° | 49° | 62° | — | — |
| 2007 | 64° | 53° | 59° | — | — |
| 2006 | 70° | 43° | 56° | — | — |
| 2005 | 71° | 41° | 56° | — | — |
| 2004 | 60° | 43° | 51° | 0.03" | — |
| 2003 | 67° | 51° | 59° | — | — |
| 2002 | 65° | 48° | 56° | — | — |
| 2001 | 74° | 45° | 59° | — | — |
| 2000 | 68° | 51° | 60° | — | — |
| 1999 | 66° | 42° | 54° | — | — |
| 1998 | 63° | 42° | 52° | 0.71" | — |
| 1997 | 66° | 40° | 53° | 8.81" | — |
| 1996 | 64° | 55° | 60° | 0.64" | — |
| 1995 | 76° | 56° | 66° | — | — |
| 1994 | 64° | 54° | 59° | — | — |
| 1993 | 68° | 51° | 60° | — | — |
| 1992 | 64° | 49° | 56° | — | — |
| 1991 | 65° | 43° | 54° | — | — |
| 1990 | 86° | 46° | 66° | — | — |
| 1989 | 84° | 46° | 65° | — | — |
| 1988 | 79° | 48° | 63° | — | — |
| 1987 | 68° | 49° | 58° | — | — |
| 1986 | 65° | 53° | 59° | 0.89" | — |
| 1985 | 69° | 52° | 60° | — | — |
| 1984 | 75° | 52° | 63° | — | — |
| 1983 | 71° | 37° | 54° | — | — |
| 1982 | 65° | 45° | 55° | — | — |
| 1981 | 67° | 49° | 58° | — | — |
| 1980 | 65° | 44° | 54° | — | — |
| 1979warmest | 87° | 58° | 72° | — | — |
| 1978coldest | 60° | 36° | 48° | — | — |
| 1977 | 76° | 50° | 63° | — | — |
| 1976 | 74° | 41° | 57° | — | — |
| 1975 | 70° | 41° | 55° | — | — |
| 1974 | 71° | 45° | 58° | — | — |
| 1973 | 74° | 41° | 57° | — | — |
| 1972 | 60° | 40° | 50° | — | — |
| 1971 | 64° | 41° | 53° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP