Weather on September 8
Mission Viejo, CA
55 Years of Data
Avg High
85°F
Avg Low
63°F
Warmest
2024
95°F avg
Coldest
2010
63°F avg
About This Date
September 8th in Mission Viejo, CA typically brings warm fall weather, with average highs around 85°F and lows near 63°F. Over 55 years of records, the warmest September 8th was in 2024 (95°F average), while the coldest was 2010 (63°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 8th dates historically. The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
Planning for September 8th in Mission Viejo, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 63° | 75° | — | — |
| 2024warmest | 109° | 81° | 95° | — | — |
| 2023 | 94° | 65° | 79° | — | — |
| 2022 | 100° | 70° | 85° | — | — |
| 2021 | 91° | 61° | 76° | — | — |
| 2020 | 74° | 65° | 69° | — | — |
| 2019 | 80° | 60° | 70° | — | — |
| 2018 | 94° | 59° | 76° | — | — |
| 2017 | 80° | 62° | 71° | — | — |
| 2016 | 77° | 61° | 69° | — | — |
| 2015 | 102° | 73° | 88° | — | — |
| 2014 | 91° | 71° | 81° | — | — |
| 2013 | 88° | 65° | 76° | — | — |
| 2012 | 88° | 67° | 77° | — | — |
| 2011 | 96° | 63° | 79° | — | — |
| 2010coldest | 70° | 57° | 63° | — | — |
| 2009 | 83° | 58° | 70° | — | — |
| 2008 | 82° | 61° | 71° | — | — |
| 2007 | 86° | 57° | 72° | — | — |
| 2006 | 80° | 62° | 71° | — | — |
| 2005 | 82° | 56° | 69° | — | — |
| 2004 | 91° | 67° | 79° | — | — |
| 2003 | 84° | 59° | 72° | — | — |
| 2002 | 86° | 56° | 71° | — | — |
| 2001 | 76° | 61° | 68° | — | — |
| 2000 | 86° | 55° | 71° | — | — |
| 1999 | 86° | 57° | 72° | — | — |
| 1998 | 81° | 66° | 73° | — | — |
| 1997 | 88° | 64° | 76° | — | — |
| 1996 | 85° | 65° | 75° | — | — |
| 1995 | 84° | 60° | 72° | — | — |
| 1994 | 86° | 63° | 74° | — | — |
| 1993 | 91° | 62° | 77° | — | — |
| 1992 | 81° | 62° | 71° | — | — |
| 1991 | 77° | 61° | 69° | — | — |
| 1990 | 90° | 68° | 79° | — | — |
| 1989 | 77° | 57° | 67° | — | — |
| 1988 | 79° | 63° | 71° | — | — |
| 1987 | 86° | 60° | 73° | — | — |
| 1986 | 78° | 64° | 71° | — | — |
| 1985 | 81° | 63° | 72° | — | — |
| 1984 | 104° | 68° | 86° | — | — |
| 1983 | 91° | 63° | 77° | — | — |
| 1982 | 75° | 66° | 71° | 0.03" | — |
| 1981 | 93° | 64° | 79° | — | — |
| 1980 | 74° | 60° | 67° | — | — |
| 1979 | 94° | 64° | 79° | — | — |
| 1978 | 78° | 58° | 68° | — | — |
| 1977 | 90° | 67° | 78° | — | — |
| 1976 | 92° | 63° | 77° | — | — |
| 1975 | 77° | 64° | 71° | — | — |
| 1974 | 83° | 60° | 71° | — | — |
| 1973 | 76° | 61° | 68° | — | — |
| 1972 | 70° | 64° | 67° | — | — |
| 1971 | 93° | 68° | 81° | — | — |
55 years of data from EL TORO MCAS