Weather on December 1
Costa Mesa, CA
55 Years of Data
Avg High
70°F
Avg Low
49°F
Warmest
1988
70°F avg
Coldest
2004
49°F avg
About This Date
December 1st in Costa Mesa, CA typically brings pleasant winter weather, with average highs around 70°F and lows near 49°F. Over 55 years of records, the warmest December 1st was in 1988 (70°F average), while the coldest was 2004 (49°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 15% of December 1st dates historically, with the wettest December 1st recording 0.56" of rain. The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for December 1st in Costa Mesa, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 52° | 59° | — | — |
| 2024 | 73° | 51° | 62° | — | — |
| 2023 | 68° | 51° | 60° | — | — |
| 2022 | 65° | 58° | 61° | — | — |
| 2021 | 75° | 53° | 64° | — | — |
| 2020 | 72° | 47° | 59° | — | — |
| 2019 | 68° | 50° | 59° | — | — |
| 2018 | 66° | 51° | 59° | — | — |
| 2017 | 72° | 51° | 61° | — | — |
| 2016 | 66° | 49° | 57° | — | — |
| 2015 | 68° | 44° | 56° | — | — |
| 2014 | 74° | 58° | 66° | — | — |
| 2013 | 82° | 51° | 67° | — | — |
| 2012 | 69° | 61° | 65° | 0.05" | — |
| 2011 | 69° | 48° | 59° | — | — |
| 2010 | 76° | 45° | 60° | — | — |
| 2009 | 65° | 47° | 56° | — | — |
| 2008 | 65° | 54° | 59° | — | — |
| 2007 | 59° | 49° | 54° | 0.03" | — |
| 2006 | 72° | 43° | 57° | — | — |
| 2005 | 65° | 55° | 60° | — | — |
| 2004coldest | 61° | 37° | 49° | — | — |
| 2003 | 66° | 46° | 56° | — | — |
| 2002 | 67° | 48° | 57° | 0.03" | — |
| 2001 | 65° | 44° | 54° | — | — |
| 2000 | 63° | 51° | 57° | 0.03" | — |
| 1999 | 64° | 50° | 57° | 0.03" | — |
| 1998 | 65° | 48° | 56° | 0.56" | — |
| 1997 | 68° | 50° | 59° | — | — |
| 1996 | 67° | 43° | 55° | — | — |
| 1995 | 75° | 50° | 63° | — | — |
| 1994 | 73° | 45° | 59° | — | — |
| 1993 | 77° | 53° | 65° | — | — |
| 1992 | 74° | 44° | 59° | — | — |
| 1991 | 66° | 42° | 54° | — | — |
| 1990 | 74° | 46° | 60° | — | — |
| 1989 | 76° | 44° | 60° | — | — |
| 1988warmest | 85° | 55° | 70° | — | — |
| 1987 | 69° | 45° | 57° | — | — |
| 1986 | 78° | 46° | 62° | — | — |
| 1985 | 65° | 45° | 55° | — | — |
| 1984 | 71° | 49° | 60° | — | — |
| 1983 | 67° | 57° | 62° | 0.3" | — |
| 1982 | 63° | 50° | 56° | — | — |
| 1981 | 74° | 43° | 58° | — | — |
| 1980 | 67° | 55° | 61° | — | — |
| 1979 | 84° | 53° | 69° | — | — |
| 1978 | 69° | 52° | 60° | — | — |
| 1977 | 83° | 53° | 68° | — | — |
| 1976 | 83° | 46° | 64° | — | — |
| 1975 | 77° | 40° | 58° | — | — |
| 1974 | 69° | 47° | 58° | — | — |
| 1973 | 64° | 45° | 54° | 0.2" | — |
| 1972 | 80° | 43° | 61° | — | — |
| 1971 | 71° | 42° | 57° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP