Weather on December 5
Costa Mesa, CA
55 Years of Data
Avg High
69°F
Avg Low
48°F
Warmest
1979
70°F avg
Coldest
1972
48°F avg
About This Date
December 5th 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 5th was in 1979 (70°F average), while the coldest was 1972 (48°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 18% of December 5th dates historically, with the wettest December 5th recording 2.08" of rain. The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for December 5th in Costa Mesa, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 48° | 58° | — | — |
| 2024 | 62° | 50° | 56° | — | — |
| 2023 | 79° | 53° | 66° | — | — |
| 2022 | 66° | 56° | 61° | 0.2" | — |
| 2021 | 67° | 52° | 59° | — | — |
| 2020 | 72° | 43° | 57° | — | — |
| 2019 | 68° | 52° | 60° | — | — |
| 2018 | 58° | 50° | 54° | 0.64" | — |
| 2017 | 71° | 59° | 65° | — | — |
| 2016 | 64° | 47° | 55° | — | — |
| 2015 | 76° | 45° | 60° | — | — |
| 2014 | 71° | 59° | 65° | — | — |
| 2013 | 62° | 47° | 54° | — | — |
| 2012 | 67° | 55° | 61° | — | — |
| 2011 | 67° | 42° | 54° | — | — |
| 2010 | 71° | 52° | 61° | 1.12" | — |
| 2009 | 62° | 48° | 55° | — | — |
| 2008 | 74° | 50° | 62° | 0.03" | — |
| 2007 | 75° | 49° | 62° | — | — |
| 2006 | 71° | 43° | 57° | — | — |
| 2005 | 70° | 43° | 56° | — | — |
| 2004 | 55° | 45° | 50° | 0.94" | — |
| 2003 | 64° | 52° | 58° | 0.03" | — |
| 2002 | 70° | 48° | 59° | 0.03" | — |
| 2001 | 62° | 44° | 53° | — | — |
| 2000 | 79° | 52° | 65° | — | — |
| 1999 | 67° | 41° | 54° | — | — |
| 1998 | 62° | 45° | 53° | 0.58" | — |
| 1997 | 70° | 53° | 61° | — | — |
| 1996 | 64° | 48° | 56° | — | — |
| 1995 | 77° | 52° | 64° | — | — |
| 1994 | 70° | 53° | 61° | 0.2" | — |
| 1993 | 72° | 46° | 59° | — | — |
| 1992 | 65° | 43° | 54° | — | — |
| 1991 | 71° | 49° | 60° | — | — |
| 1990 | 75° | 48° | 62° | — | — |
| 1989 | 78° | 46° | 62° | — | — |
| 1988 | 79° | 47° | 63° | — | — |
| 1987 | 67° | 43° | 55° | 2.08" | — |
| 1986 | 68° | 55° | 62° | — | — |
| 1985 | 74° | 54° | 64° | — | — |
| 1984 | 63° | 50° | 56° | — | — |
| 1983 | 66° | 38° | 52° | — | — |
| 1982 | 69° | 45° | 57° | — | — |
| 1981 | 71° | 49° | 60° | — | — |
| 1980 | 64° | 54° | 59° | — | — |
| 1979warmest | 89° | 52° | 70° | — | — |
| 1978 | 65° | 45° | 55° | — | — |
| 1977 | 76° | 54° | 65° | — | — |
| 1976 | 76° | 44° | 60° | — | — |
| 1975 | 62° | 49° | 55° | — | — |
| 1974 | 67° | 49° | 58° | — | — |
| 1973 | 69° | 41° | 55° | — | — |
| 1972coldest | 59° | 37° | 48° | — | — |
| 1971 | 69° | 41° | 55° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP