Weather on May 12
Costa Mesa, CA
55 Years of Data
Avg High
74°F
Avg Low
57°F
Warmest
1979
77°F avg
Coldest
2008
59°F avg
About This Date
May 12th in Costa Mesa, CA typically brings pleasant spring weather, with average highs around 74°F and lows near 57°F. Over 55 years of records, the warmest May 12th was in 1979 (77°F average), while the coldest was 2008 (59°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 11% of May 12th dates historically, with the wettest May 12th recording 0.97" 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 May 12th in Costa Mesa, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 61° | 66° | — | — |
| 2024 | 70° | 60° | 65° | — | — |
| 2023 | 70° | 60° | 65° | — | — |
| 2022 | 80° | 54° | 67° | — | — |
| 2021 | 73° | 62° | 68° | — | — |
| 2020 | 77° | 63° | 70° | — | — |
| 2019 | 72° | 59° | 65° | — | — |
| 2018 | 67° | 57° | 62° | 0.03" | — |
| 2017 | 69° | 60° | 65° | — | — |
| 2016 | 69° | 58° | 63° | — | — |
| 2015 | 68° | 58° | 63° | — | — |
| 2014 | 93° | 60° | 77° | — | — |
| 2013 | 82° | 62° | 72° | — | — |
| 2012 | 73° | 61° | 67° | — | — |
| 2011 | 74° | 57° | 65° | — | — |
| 2010 | 71° | 51° | 61° | — | — |
| 2009 | 71° | 61° | 66° | — | — |
| 2008coldest | 63° | 56° | 59° | 0.05" | — |
| 2007 | 68° | 57° | 63° | — | — |
| 2006 | 70° | 60° | 65° | — | — |
| 2005 | 80° | 56° | 68° | — | — |
| 2004 | 72° | 58° | 65° | — | — |
| 2003 | 74° | 55° | 64° | — | — |
| 2002 | 90° | 54° | 72° | — | — |
| 2001 | 68° | 59° | 64° | 0.03" | — |
| 2000 | 80° | 52° | 66° | — | — |
| 1999 | 69° | 56° | 62° | — | — |
| 1998 | 66° | 54° | 60° | 0.97" | — |
| 1997 | 77° | 62° | 70° | — | — |
| 1996 | 88° | 60° | 74° | — | — |
| 1995 | 69° | 55° | 62° | — | — |
| 1994 | 67° | 56° | 61° | — | — |
| 1993 | 72° | 58° | 65° | — | — |
| 1992 | 78° | 61° | 69° | — | — |
| 1991 | 75° | 51° | 63° | — | — |
| 1990 | 69° | 57° | 63° | — | — |
| 1989 | 69° | 55° | 62° | — | — |
| 1988 | 86° | 59° | 73° | — | — |
| 1987 | 85° | 64° | 74° | — | — |
| 1986 | 71° | 55° | 63° | — | — |
| 1985 | 69° | 53° | 61° | — | — |
| 1984 | 78° | 57° | 68° | — | — |
| 1983 | 74° | 51° | 62° | — | — |
| 1982 | 71° | 52° | 61° | 0.15" | — |
| 1981 | 73° | 59° | 66° | — | — |
| 1980 | 69° | 52° | 60° | — | — |
| 1979warmest | 98° | 56° | 77° | — | — |
| 1978 | 89° | 57° | 73° | — | — |
| 1977 | 67° | 54° | 60° | 0.03" | — |
| 1976 | 79° | 59° | 69° | — | — |
| 1975 | 76° | 54° | 65° | — | — |
| 1974 | 75° | 58° | 66° | — | — |
| 1973 | 68° | 57° | 63° | — | — |
| 1972 | 80° | 56° | 68° | — | — |
| 1971 | 69° | 56° | 62° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP