Weather on June 12
Costa Mesa, CA
55 Years of Data
Avg High
75°F
Avg Low
61°F
Warmest
1979
83°F avg
Coldest
1982
63°F avg
About This Date
June 12th in Costa Mesa, CA typically brings pleasant summer weather, with average highs around 75°F and lows near 61°F. Over 55 years of records, the warmest June 12th was in 1979 (83°F average), while the coldest was 1982 (63°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 2% of June 12th dates historically. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for June 12th in Costa Mesa, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 61° | 67° | — | — |
| 2024 | 72° | 63° | 67° | — | — |
| 2023 | 71° | 62° | 67° | 0.05" | — |
| 2022 | 75° | 64° | 70° | — | — |
| 2021 | 81° | 61° | 71° | — | — |
| 2020 | 75° | 63° | 69° | — | — |
| 2019 | 75° | 63° | 69° | — | — |
| 2018 | 76° | 62° | 69° | — | — |
| 2017 | 73° | 58° | 65° | — | — |
| 2016 | 69° | 61° | 65° | — | — |
| 2015 | 70° | 64° | 67° | — | — |
| 2014 | 77° | 65° | 71° | — | — |
| 2013 | 72° | 63° | 67° | — | — |
| 2012 | 73° | 62° | 68° | — | — |
| 2011 | 69° | 59° | 64° | — | — |
| 2010 | 72° | 62° | 67° | — | — |
| 2009 | 68° | 61° | 64° | — | — |
| 2008 | 73° | 62° | 68° | — | — |
| 2007 | 74° | 61° | 67° | — | — |
| 2006 | 74° | 63° | 68° | — | — |
| 2005 | 72° | 63° | 67° | — | — |
| 2004 | 74° | 63° | 68° | — | — |
| 2003 | 70° | 62° | 66° | — | — |
| 2002 | 73° | 58° | 65° | — | — |
| 2001 | 71° | 62° | 67° | — | — |
| 2000 | 77° | 61° | 69° | — | — |
| 1999 | 72° | 58° | 65° | — | — |
| 1998 | 70° | 58° | 64° | — | — |
| 1997 | 74° | 62° | 68° | — | — |
| 1996 | 77° | 63° | 70° | — | — |
| 1995 | 86° | 66° | 76° | — | — |
| 1994 | 74° | 60° | 67° | — | — |
| 1993 | 78° | 63° | 70° | — | — |
| 1992 | 75° | 59° | 67° | — | — |
| 1991 | 73° | 59° | 66° | — | — |
| 1990 | 78° | 60° | 69° | — | — |
| 1989 | 75° | 56° | 65° | — | — |
| 1988 | 72° | 58° | 65° | — | — |
| 1987 | 73° | 59° | 66° | — | — |
| 1986 | 80° | 58° | 69° | — | — |
| 1985 | 75° | 62° | 69° | — | — |
| 1984 | 75° | 58° | 66° | — | — |
| 1983 | 73° | 60° | 67° | — | — |
| 1982coldest | 69° | 58° | 63° | — | — |
| 1981 | 79° | 61° | 70° | — | — |
| 1980 | 77° | 55° | 66° | — | — |
| 1979warmest | 104° | 63° | 83° | — | — |
| 1978 | 86° | 55° | 71° | — | — |
| 1977 | 73° | 57° | 65° | — | — |
| 1976 | 77° | 56° | 66° | — | — |
| 1975 | 78° | 59° | 69° | — | — |
| 1974 | 76° | 62° | 69° | — | — |
| 1973 | 73° | 61° | 67° | — | — |
| 1972 | 83° | 59° | 71° | — | — |
| 1971 | 83° | 55° | 69° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP