Weather on October 31
Santa Rosa, CA
55 Years of Data
Avg High
70°F
Avg Low
46°F
Warmest
1997
69°F avg
Coldest
1971
52°F avg
About This Date
October 31st in Santa Rosa, CA typically brings pleasant fall weather, with average highs around 70°F and lows near 46°F. Over 55 years of records, the warmest October 31st was in 1997 (69°F average), while the coldest was 1971 (52°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 25% of October 31st dates historically, with the wettest October 31st recording 1.8" 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 October 31st in Santa Rosa, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 44° | 60° | — | — |
| 2024 | 64° | 46° | 55° | 0.51" | — |
| 2023 | 74° | 37° | 55° | — | — |
| 2022 | 69° | 44° | 57° | — | — |
| 2021 | 60° | 55° | 58° | 0.58" | — |
| 2020 | 78° | 39° | 59° | — | — |
| 2019 | 73° | 33° | 53° | — | — |
| 2018 | 81° | 45° | 63° | — | — |
| 2017 | 68° | 47° | 57° | — | — |
| 2016 | 60° | 53° | 57° | — | — |
| 2015 | 81° | 57° | 69° | — | — |
| 2014 | 63° | 51° | 57° | — | — |
| 2013 | 74° | 46° | 60° | — | — |
| 2012 | 59° | 54° | 56° | — | — |
| 2011 | 81° | 48° | 64° | — | — |
| 2010 | 65° | 50° | 57° | 0.05" | — |
| 2009 | 76° | 42° | 59° | — | — |
| 2008 | 65° | 56° | 60° | 0.89" | — |
| 2007 | 64° | 49° | 56° | — | — |
| 2006 | 64° | 47° | 55° | — | — |
| 2005 | 77° | 40° | 58° | — | — |
| 2004 | 72° | 41° | 56° | — | — |
| 2003 | 64° | 40° | 52° | 0.1" | — |
| 2002 | 71° | 37° | 54° | — | — |
| 2001 | 69° | 55° | 62° | 0.15" | — |
| 2000 | 71° | 41° | 56° | 0.03" | — |
| 1999 | 80° | 46° | 63° | — | — |
| 1998 | 66° | 42° | 54° | 0.03" | — |
| 1997warmest | 78° | 61° | 69° | — | — |
| 1996 | 66° | 48° | 57° | — | — |
| 1995 | 58° | 53° | 55° | — | — |
| 1994 | 80° | 44° | 62° | — | — |
| 1993 | 67° | 49° | 58° | — | — |
| 1992 | 64° | 54° | 59° | 0.13" | — |
| 1991 | 71° | 38° | 54° | — | — |
| 1990 | 64° | 46° | 55° | 1.14" | — |
| 1989 | 73° | 38° | 55° | — | — |
| 1988 | 77° | 44° | 61° | — | — |
| 1987 | 70° | 53° | 61° | — | — |
| 1986 | 72° | 46° | 59° | — | — |
| 1985 | 69° | 59° | 64° | — | — |
| 1984 | 65° | 39° | 52° | — | — |
| 1983 | 66° | 59° | 63° | 1.8" | — |
| 1982 | 76° | 42° | 59° | 0.03" | — |
| 1981 | 72° | — | — | — | — |
| 1980 | 76° | 38° | 57° | — | — |
| 1979 | 70° | 42° | 56° | — | — |
| 1978 | 72° | 40° | 56° | — | — |
| 1977 | 70° | 41° | 55° | — | — |
| 1976 | 79° | 43° | 61° | — | — |
| 1975 | 75° | 40° | 57° | — | — |
| 1974 | 60° | 48° | 54° | 0.38" | — |
| 1973 | 81° | 45° | 63° | — | — |
| 1972 | 70° | 35° | 52° | — | — |
| 1971coldest | 69° | 35° | 52° | 0.15" | — |
55 years of data from SANTA ROSA