San Francisco October 20 Weather Records

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	66	57	0.00	n/a
2022	67	53	0.00	n/a
2021	62	55	0.49	n/a
2020	74	53	0.00	n/a
2019	68	52	0.00	0.0
2018	64	52	0.00	n/a
2017	61	52	0.02	n/a
2016	77	56	0.00	n/a
2015	75	58	0.00	n/a
2014	67	59	0.05	n/a
2013	61	47	0.00	n/a
2012	65	54	0.00	n/a
2011	61	55	0.00	0.0
2010	61	50	0.00	n/a
2009	64	56	0.00	n/a
2008	61	51	0.00	0.0
2007	62	55	0.00	n/a
2006	80	57	0.00	n/a
2005	66	51	0.00	n/a
2004	64	50	0.09	n/a
2003	79	56	0.00	n/a
2002	68	53	0.00	n/a
2001	59	51	0.00	n/a
2000	63	53	0.00	n/a
1999	82	55	0.00	n/a
1998	83	57	0.00	0.0
1997	63	54	0.00	n/a
1996	65	48	0.00	n/a
1995	70	54	0.00	n/a
1994	71	50	0.00	n/a
1993	79	54	0.00	n/a
1992	77	60	0.22	n/a
1991	89	58	0.00	n/a
1990	77	51	0.00	n/a
1989	65	52	0.00	n/a
1988	74	54	0.00	n/a
1987	67	56	0.00	n/a
1986	62	54	0.00	n/a
1985	63	55	0.73	n/a
1984	66	52	0.00	n/a
1983	78	52	0.00	n/a
1982	71	60	0.00	n/a
1981	60	52	0.00	n/a
1980	74	49	0.00	0.0
1979	65	54	0.05	n/a
1978	62	56	0.00	n/a
1977	60	54	0.00	n/a
1976	73	56	0.00	n/a
1975	82	55	0.00	n/a
1974	68	55	0.00	n/a
1973	69	57	0.02	n/a
1972	64	56	0.00	0.0
1971	59	53	0.00	0.0
1970	62	55	0.21	0.0
1969	71	52	0.00	0.0
1968	64	53	0.00	0.0
1967	68	55	0.00	0.0
1966	64	54	0.00	0.0
1965	77	57	0.00	0.0
1964	83	61	0.00	0.0
1963	63	57	0.00	0.0
1962	66	54	0.00	0.0
1961	57	53	0.00	0.0
1960	68	51	0.00	0.0
1959	70	54	0.00	0.0
1958	72	56	0.00	0.0
1957	65	54	0.04	0.0
1956	77	55	0.00	0.0
1955	68	54	0.00	0.0
1954	71	55	0.00	0.0
1953	74	55	0.00	0.0
1952	68	52	0.00	0.0
1951	70	54	0.00	0.0
1950	67	55	0.00	0.0
1949	63	45	0.00	0.0
1948	65	50	0.00	0.0
1947	65	56	0.03	0.0
1946	64	54	0.00	0.0
1945	65	55	0.00	0.0
1944	66	55	0.22	0.0
1943	60	56	0.32	0.0
1942	76	54	0.00	0.0
1941	64	52	0.00	0.0
1940	66	57	0.00	0.0
1939	78	56	0.00	0.0
1938	78	55	0.00	0.0
1937	82	58	0.00	0.0
1936	64	54	0.00	0.0
1935	66	54	0.00	0.0
1934	65	52	0.00	0.0
1933	68	52	0.00	0.0
1932	74	61	0.00	0.0
1931	61	54	0.00	0.0
1930	65	56	0.00	0.0
1929	81	56	0.00	0.0
1928	58	51	0.00	0.0
1927	71	52	0.00	0.0
1926	61	55	0.00	0.0
1925	85	55	0.00	0.0
1924	65	54	0.00	0.0
1923	81	60	0.00	0.0
1922	75	54	0.00	0.0
1921	74	57	0.00	0.0

What's the all-time high for San Francisco on 10/20?

For the date of Oct 20, the highest temperature ever reached in San Francisco history is 89 °F which happened in 1991.

Highest Temperatures in San Francisco on October 20

Rank	Temperature	Year
1	89 °F	1991
2	85 °F	1925
3	83 °F	1964
3	83 °F	1998
5	82 °F	1937
5	82 °F	1975
5	82 °F	1999
8	81 °F	1929
8	81 °F	1923
10	80 °F	2006

What's the all-time low for San Francisco on 10/20?

For the date of Oct 20, the lowest temperature ever reached in San Francisco history is 45 °F which happened in 1949.

Lowest Temperatures in San Francisco on October 20

Rank	Temperature	Year
1	45 °F	1949
2	47 °F	2013
3	48 °F	1996
4	49 °F	1980
5	50 °F	2004
5	50 °F	1948
5	50 °F	2010
5	50 °F	1994
9	51 °F	1990
9	51 °F	2001
9	51 °F	1960
9	51 °F	2005
9	51 °F	2008
9	51 °F	1928

Lowest High Temperatures in San Francisco on October 20

Rank	Temperature	Year
1	57 °F	1961
2	58 °F	1928
3	59 °F	1971
3	59 °F	2001
5	60 °F	1981
5	60 °F	1943
5	60 °F	1977
8	61 °F	1926
8	61 °F	2010
8	61 °F	2011
8	61 °F	1931
8	61 °F	2013
8	61 °F	2008
8	61 °F	2017

What's the most it has ever rained in San Francisco on 10/20?

For the date of Oct 20, the most precipitation ever recorded in San Francisco history is 0.73 inches which happened in 1985.

All-Time Most Precipitation in San Francisco on October 20

Rank	Precipitation	Year
1	0.73 inches	1985
2	0.49 inches	2021
3	0.32 inches	1943
4	0.22 inches	1992
4	0.22 inches	1944
6	0.21 inches	1970
7	0.09 inches	2004
8	0.05 inches	1979
8	0.05 inches	2014
10	0.04 inches	1957

Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location