Weather on August 16
Mission Viejo, CA
55 Years of Data
Avg High
85°F
Avg Low
63°F
Warmest
1983
85°F avg
Coldest
1987
64°F avg
About This Date
August 16th in Mission Viejo, CA typically brings warm summer weather, with average highs around 85°F and lows near 63°F. Over 55 years of records, the warmest August 16th was in 1983 (85°F average), while the coldest was 1987 (64°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 5% of August 16th dates historically, with the wettest August 16th recording 1.14" 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 August 16th in Mission Viejo, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 61° | 69° | — | — |
| 2024 | 89° | 62° | 76° | — | — |
| 2023 | 99° | 65° | 82° | — | — |
| 2022 | 91° | 62° | 77° | — | — |
| 2021 | 86° | 63° | 74° | — | — |
| 2020 | 91° | 67° | 79° | — | — |
| 2019 | 81° | 57° | 69° | — | — |
| 2018 | 83° | 68° | 75° | — | — |
| 2017 | 76° | 61° | 68° | — | — |
| 2016 | 102° | 64° | 83° | — | — |
| 2015 | 100° | 68° | 84° | — | — |
| 2014 | 94° | 65° | 79° | — | — |
| 2013 | 85° | 61° | 73° | — | — |
| 2012 | 96° | 69° | 83° | — | — |
| 2011 | 88° | 58° | 73° | — | — |
| 2010 | 84° | 57° | 71° | — | — |
| 2009 | 81° | 58° | 69° | — | — |
| 2008 | 86° | 63° | 74° | — | — |
| 2007 | 95° | 63° | 79° | — | — |
| 2006 | 81° | 57° | 69° | — | — |
| 2005 | 83° | 58° | 70° | — | — |
| 2004 | 84° | 59° | 72° | — | — |
| 2003 | 96° | 66° | 81° | — | — |
| 2002 | 80° | 59° | 70° | — | — |
| 2001 | 97° | 61° | 79° | — | — |
| 2000 | 96° | 66° | 81° | — | — |
| 1999 | 93° | 57° | 75° | — | — |
| 1998 | 83° | 64° | 73° | — | — |
| 1997 | 72° | 63° | 67° | 0.03" | — |
| 1996 | 88° | 68° | 78° | — | — |
| 1995 | 76° | 59° | 67° | — | — |
| 1994 | 92° | 70° | 81° | — | — |
| 1993 | 82° | 64° | 73° | — | — |
| 1992 | 96° | 71° | 84° | — | — |
| 1991 | 80° | 65° | 72° | — | — |
| 1990 | 78° | 65° | 71° | — | — |
| 1989 | 78° | 63° | 70° | — | — |
| 1988 | 77° | 57° | 67° | — | — |
| 1987coldest | 74° | 54° | 64° | — | — |
| 1986 | 80° | 60° | 70° | — | — |
| 1985 | 79° | 64° | 71° | — | — |
| 1984 | 88° | 69° | 78° | — | — |
| 1983warmest | 95° | 75° | 85° | 0.2" | — |
| 1982 | 82° | 59° | 71° | — | — |
| 1981 | 84° | 66° | 75° | — | — |
| 1980 | 76° | 67° | 71° | — | — |
| 1979 | 81° | 64° | 72° | — | — |
| 1978 | 78° | 58° | 68° | — | — |
| 1977 | 89° | 73° | 81° | 1.14" | — |
| 1976 | 75° | 59° | 67° | — | — |
| 1975 | 77° | 58° | 67° | — | — |
| 1974 | 77° | 56° | 66° | — | — |
| 1973 | 82° | 60° | 71° | — | — |
| 1972 | 80° | 54° | 67° | — | — |
| 1971 | 83° | 67° | 75° | — | — |
55 years of data from EL TORO MCAS