Weather on October 31
San Francisco, CA
55 Years of Data
Avg High
68°F
Avg Low
53°F
Warmest
1973
66°F avg
Coldest
1974
53°F avg
About This Date
October 31st in San Francisco, CA typically brings mild fall weather, with average highs around 68°F and lows near 53°F. Over 55 years of records, the warmest October 31st was in 1973 (66°F average), while the coldest was 1974 (53°F) — a 13°F range across recorded history. Rain or other precipitation has occurred on about 22% of October 31st dates historically, with the wettest October 31st recording 0.56" 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 San Francisco, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 53° | 61° | — | — |
| 2024 | 62° | 51° | 57° | 0.28" | — |
| 2023 | 70° | 52° | 61° | — | — |
| 2022 | 60° | 53° | 57° | — | — |
| 2021 | 62° | 55° | 59° | — | — |
| 2020 | 75° | 50° | 63° | — | — |
| 2019 | 70° | 53° | 61° | — | — |
| 2018 | 75° | 54° | 64° | — | — |
| 2017 | 66° | 52° | 59° | — | — |
| 2016 | 64° | 56° | 60° | 0.03" | — |
| 2015 | 75° | 57° | 66° | — | — |
| 2014 | 62° | 57° | 60° | 0.56" | — |
| 2013 | 71° | 50° | 61° | — | — |
| 2012 | 63° | 56° | 59° | 0.43" | — |
| 2011 | 71° | 52° | 61° | — | — |
| 2010 | 67° | 53° | 60° | — | — |
| 2009 | 69° | 51° | 60° | — | — |
| 2008 | 69° | 58° | 63° | 0.41" | — |
| 2007 | 59° | 52° | 55° | — | — |
| 2006 | 60° | 51° | 56° | — | — |
| 2005 | 76° | 53° | 64° | — | — |
| 2004 | 69° | 52° | 60° | — | — |
| 2003 | 57° | 48° | 53° | 0.1" | — |
| 2002 | 71° | 47° | 59° | — | — |
| 2001 | 72° | 52° | 62° | 0.05" | — |
| 2000 | 64° | 48° | 56° | — | — |
| 1999 | 76° | 52° | 64° | — | — |
| 1998 | 65° | 48° | 56° | — | — |
| 1997 | 71° | 59° | 65° | — | — |
| 1996 | 65° | 52° | 58° | — | — |
| 1995 | 62° | 57° | 60° | 0.15" | — |
| 1994 | 77° | 51° | 64° | — | — |
| 1993 | 68° | 55° | 62° | — | — |
| 1992 | 68° | 59° | 64° | — | — |
| 1991 | 70° | 48° | 59° | — | — |
| 1990 | 65° | 52° | 58° | 0.43" | — |
| 1989 | 73° | 50° | 62° | — | — |
| 1988 | 75° | 53° | 64° | — | — |
| 1987 | 72° | 58° | 65° | — | — |
| 1986 | 74° | 52° | 63° | — | — |
| 1985 | 70° | 50° | 60° | — | — |
| 1984 | 68° | 48° | 58° | — | — |
| 1983 | 68° | 59° | 64° | 0.05" | — |
| 1982 | 70° | 53° | 61° | — | — |
| 1981 | 73° | 57° | 65° | — | — |
| 1980 | 73° | 54° | 63° | — | — |
| 1979 | 65° | 54° | 59° | — | — |
| 1978 | 64° | 56° | 60° | — | — |
| 1977 | 64° | 52° | 58° | — | — |
| 1976 | 67° | 54° | 60° | — | — |
| 1975 | 69° | 52° | 60° | — | — |
| 1974coldest | 57° | 49° | 53° | 0.38" | — |
| 1973warmest | 78° | 53° | 66° | — | — |
| 1972 | 66° | 51° | 59° | — | — |
| 1971 | 60° | 48° | 54° | 0.15" | — |
55 years of data from SAN FRANCISCO DWTN