San Francisco October 31 Weather Records

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	n/a	52	0.00	n/a
2022	60	53	0.00	n/a
2021	62	55	0.00	n/a
2020	75	50	0.00	n/a
2019	70	53	0.00	0.0
2018	75	54	0.00	n/a
2017	66	52	0.00	n/a
2016	64	56	0.01	n/a
2015	75	57	0.00	n/a
2014	62	57	0.22	n/a
2013	71	50	0.00	0.0
2012	63	56	0.17	0.0
2011	71	52	0.00	n/a
2010	67	53	0.00	n/a
2009	69	51	0.00	n/a
2008	69	58	0.16	0.0
2007	59	52	0.00	n/a
2006	60	51	0.00	n/a
2005	76	53	0.00	n/a
2004	69	52	0.00	n/a
2003	57	48	0.04	n/a
2002	71	47	0.00	n/a
2001	72	52	0.02	n/a
2000	64	48	0.00	n/a
1999	76	52	0.00	n/a
1998	65	48	0.00	0.0
1997	71	59	0.00	n/a
1996	65	52	0.00	n/a
1995	62	57	0.06	n/a
1994	77	51	0.00	n/a
1993	68	55	0.00	n/a
1992	68	59	0.00	n/a
1991	70	48	0.00	n/a
1990	65	52	0.17	n/a
1989	73	50	0.00	n/a
1988	75	53	0.00	n/a
1987	72	58	0.00	n/a
1986	74	52	0.00	n/a
1985	70	50	0.00	n/a
1984	68	48	0.00	n/a
1983	68	59	0.02	n/a
1982	70	53	0.00	n/a
1981	73	57	0.00	n/a
1980	73	54	0.00	0.0
1979	65	54	0.00	n/a
1978	64	56	0.00	n/a
1977	64	52	0.00	n/a
1976	67	54	0.00	n/a
1975	69	52	0.00	n/a
1974	57	49	0.15	n/a
1973	78	53	0.00	n/a
1972	66	51	0.00	0.0
1971	60	48	0.06	0.0
1970	70	55	0.01	0.0
1969	79	58	0.00	0.0
1968	62	52	0.00	0.0
1967	80	59	0.00	0.0
1966	83	60	0.00	0.0
1965	56	51	0.00	0.0
1964	64	56	0.00	0.0
1963	69	52	0.00	0.0
1962	78	53	0.00	0.0
1961	63	53	0.00	0.0
1960	69	50	0.00	0.0
1959	77	59	0.00	0.0
1958	68	56	0.00	0.0
1957	66	54	0.00	0.0
1956	56	49	0.00	0.0
1955	63	51	0.00	0.0
1954	63	51	0.00	0.0
1953	74	54	0.00	0.0
1952	64	51	0.00	0.0
1951	58	50	0.00	0.0
1950	63	50	0.00	0.0
1949	74	50	0.00	0.0
1948	61	52	0.00	0.0
1947	70	55	0.00	0.0
1946	61	49	0.00	0.0
1945	63	54	0.26	0.0
1944	65	57	0.55	0.0
1943	66	50	0.00	0.0
1942	67	53	0.00	0.0
1941	68	53	0.00	0.0
1940	65	56	0.00	0.0
1939	60	52	0.00	0.0
1938	62	54	0.08	0.0
1937	68	53	0.00	0.0
1936	61	51	0.00	0.0
1935	58	43	0.00	0.0
1934	66	57	0.69	0.0
1933	65	52	0.08	0.0
1932	68	51	0.00	0.0
1931	70	51	0.00	0.0
1930	79	54	0.00	0.0
1929	71	52	0.00	0.0
1928	63	52	0.00	0.0
1927	68	53	0.24	0.0
1926	74	52	0.00	0.0
1925	60	56	0.00	0.0
1924	67	52	0.00	0.0
1923	63	51	0.00	0.0
1922	57	50	0.01	0.0
1921	68	52	0.00	0.0

What's the all-time high for San Francisco on 10/31?

For the date of Oct 31, the highest temperature ever reached in San Francisco history is 83 °F which happened in 1966.

Highest Temperatures in San Francisco on October 31

Rank	Temperature	Year
1	83 °F	1966
2	80 °F	1967
3	79 °F	1969
3	79 °F	1930
5	78 °F	1962
5	78 °F	1973
7	77 °F	1959
7	77 °F	1994
9	76 °F	2005
9	76 °F	1999

What's the all-time low for San Francisco on 10/31?

For the date of Oct 31, the lowest temperature ever reached in San Francisco history is 43 °F which happened in 1935.

Lowest Temperatures in San Francisco on October 31

Rank	Temperature	Year
1	43 °F	1935
2	47 °F	2002
3	48 °F	1984
3	48 °F	2000
3	48 °F	2003
3	48 °F	1971
3	48 °F	1991
3	48 °F	1998
9	49 °F	1974
9	49 °F	1946
9	49 °F	1956

Lowest High Temperatures in San Francisco on October 31

Rank	Temperature	Year
1	56 °F	1956
1	56 °F	1965
3	57 °F	1922
3	57 °F	2003
3	57 °F	1974
6	58 °F	1935
6	58 °F	1951
8	59 °F	2007
9	60 °F	1939
9	60 °F	1971
9	60 °F	2006
9	60 °F	1925
9	60 °F	2022

What's the most it has ever rained in San Francisco on 10/31?

For the date of Oct 31, the most precipitation ever recorded in San Francisco history is 0.69 inches which happened in 1934.

All-Time Most Precipitation in San Francisco on October 31

Rank	Precipitation	Year
1	0.69 inches	1934
2	0.55 inches	1944
3	0.26 inches	1945
4	0.24 inches	1927
5	0.22 inches	2014
6	0.17 inches	1990
6	0.17 inches	2012
8	0.16 inches	2008
9	0.15 inches	1974
10	0.08 inches	1938
10	0.08 inches	1933

Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location