Weather on October 31
Mission Viejo, CA
55 Years of Data
Avg High
76°F
Avg Low
55°F
Warmest
2005
83°F avg
Coldest
1974
52°F avg
About This Date
October 31st in Mission Viejo, CA typically brings pleasant fall weather, with average highs around 76°F and lows near 55°F. Over 55 years of records, the warmest October 31st was in 2005 (83°F average), while the coldest was 1974 (52°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 5% of October 31st dates historically, with the wettest October 31st recording 1.45" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for October 31st in Mission Viejo, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 53° | 66° | — | — |
| 2024 | 73° | 52° | 62° | — | — |
| 2023 | 87° | 65° | 76° | — | — |
| 2022 | 78° | 58° | 68° | — | — |
| 2021 | 71° | 54° | 62° | — | — |
| 2020 | 86° | 61° | 73° | — | — |
| 2019 | 80° | 57° | 69° | — | — |
| 2018 | 82° | 54° | 68° | — | — |
| 2017 | 64° | 58° | 61° | — | — |
| 2016 | 70° | 53° | 61° | — | — |
| 2015 | 88° | 66° | 77° | — | — |
| 2014 | 70° | 59° | 64° | — | — |
| 2013 | 78° | 54° | 66° | — | — |
| 2012 | 74° | 48° | 61° | — | — |
| 2011 | 84° | 51° | 68° | — | — |
| 2010 | 71° | 50° | 61° | — | — |
| 2009 | 86° | 57° | 72° | — | — |
| 2008 | 88° | 59° | 73° | — | — |
| 2007 | 78° | 50° | 64° | — | — |
| 2006 | 68° | 52° | 60° | — | — |
| 2005warmest | 94° | 73° | 83° | — | — |
| 2004 | 70° | 50° | 60° | — | — |
| 2003 | 67° | 50° | 58° | — | — |
| 2002 | 58° | 55° | 56° | — | — |
| 2001 | 71° | 54° | 62° | — | — |
| 2000 | 68° | 51° | 60° | — | — |
| 1999 | 92° | 68° | 80° | — | — |
| 1998 | 74° | 51° | 62° | — | — |
| 1997 | 82° | 55° | 69° | — | — |
| 1996 | 66° | 48° | 57° | — | — |
| 1995 | 63° | 55° | 59° | 0.13" | — |
| 1994 | 82° | 53° | 68° | — | — |
| 1993 | 79° | 60° | 69° | — | — |
| 1992 | 74° | 57° | 65° | — | — |
| 1991 | 79° | 56° | 67° | — | — |
| 1990 | 77° | 57° | 67° | — | — |
| 1989 | 77° | 53° | 65° | — | — |
| 1988 | 82° | 54° | 68° | — | — |
| 1987 | 62° | 55° | 59° | 1.45" | — |
| 1986 | 70° | 56° | 63° | — | — |
| 1985 | 72° | 53° | 62° | — | — |
| 1984 | 70° | 54° | 62° | — | — |
| 1983 | 74° | 61° | 67° | — | — |
| 1982 | 72° | 54° | 63° | — | — |
| 1981 | 90° | 59° | 74° | — | — |
| 1980 | 84° | 62° | 73° | — | — |
| 1979 | 72° | 51° | 61° | — | — |
| 1978 | 71° | 54° | 62° | — | — |
| 1977 | 73° | 53° | 63° | — | — |
| 1976 | 81° | 54° | 67° | — | — |
| 1975 | 72° | 46° | 59° | — | — |
| 1974coldest | 60° | 45° | 52° | 0.03" | — |
| 1973 | 89° | 51° | 70° | — | — |
| 1972 | 69° | 52° | 60° | — | — |
| 1971 | 70° | 42° | 56° | — | — |
55 years of data from EL TORO MCAS