Weather on June 21
Mission Viejo, CA
55 Years of Data
Avg High
79°F
Avg Low
58°F
Warmest
2008
87°F avg
Coldest
2003
60°F avg
About This Date
June 21st in Mission Viejo, CA typically brings pleasant summer weather, with average highs around 79°F and lows near 58°F. Over 55 years of records, the warmest June 21st was in 2008 (87°F average), while the coldest was 2003 (60°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 2% of June 21st dates historically. 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 June 21st in Mission Viejo, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 55° | 63° | — | — |
| 2024 | 81° | 55° | 68° | — | — |
| 2023 | 77° | 54° | 65° | — | — |
| 2022 | 84° | 61° | 72° | — | — |
| 2021 | 81° | 57° | 69° | — | — |
| 2020 | 76° | 61° | 68° | — | — |
| 2019 | 72° | 58° | 65° | — | — |
| 2018 | 80° | 60° | 70° | — | — |
| 2017 | 86° | 57° | 72° | — | — |
| 2016 | 85° | 64° | 74° | — | — |
| 2015 | 81° | 58° | 69° | — | — |
| 2014 | 81° | 56° | 68° | — | — |
| 2013 | 78° | 57° | 68° | — | — |
| 2012 | 77° | 56° | 66° | — | — |
| 2011 | 85° | 56° | 70° | — | — |
| 2010 | 72° | 50° | 61° | — | — |
| 2009 | 75° | 57° | 66° | — | — |
| 2008warmest | 106° | 68° | 87° | — | — |
| 2007 | 85° | 53° | 69° | — | — |
| 2006 | 80° | 57° | 69° | — | — |
| 2005 | 88° | 57° | 72° | — | — |
| 2004 | 74° | 59° | 66° | — | — |
| 2003coldest | 64° | 56° | 60° | — | — |
| 2002 | 75° | 57° | 66° | — | — |
| 2001 | 88° | 60° | 74° | — | — |
| 2000 | 82° | 59° | 71° | — | — |
| 1999 | 76° | 54° | 65° | — | — |
| 1998 | 78° | 60° | 69° | — | — |
| 1997 | 75° | 61° | 68° | — | — |
| 1996 | 72° | 61° | 66° | — | — |
| 1995 | 73° | 54° | 63° | — | — |
| 1994 | 84° | 60° | 72° | — | — |
| 1993 | 76° | 61° | 68° | — | — |
| 1992 | 81° | 60° | 70° | — | — |
| 1991 | 77° | 61° | 69° | — | — |
| 1990 | 79° | 60° | 69° | — | — |
| 1989 | 86° | 60° | 73° | — | — |
| 1988 | 74° | 51° | 62° | — | — |
| 1987 | 71° | 57° | 64° | — | — |
| 1986 | 79° | 58° | 68° | — | — |
| 1985 | 75° | 60° | 68° | — | — |
| 1984 | 78° | 63° | 70° | — | — |
| 1983 | 75° | 60° | 68° | — | — |
| 1982 | 67° | 59° | 63° | 0.08" | — |
| 1981 | 84° | 61° | 72° | — | — |
| 1980 | 78° | 56° | 67° | — | — |
| 1979 | 75° | 57° | 66° | — | — |
| 1978 | 88° | 60° | 74° | — | — |
| 1977 | 73° | 60° | 67° | — | — |
| 1976 | 79° | 57° | 68° | — | — |
| 1975 | 74° | 54° | 64° | — | — |
| 1974 | 80° | 50° | 65° | — | — |
| 1973 | 100° | 67° | 83° | — | — |
| 1972 | 79° | 60° | 69° | — | — |
| 1971 | 88° | 61° | 74° | — | — |
55 years of data from EL TORO MCAS