San Francisco October 18 Weather Records

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	84	n/a	0.00	n/a
2022	79	58	0.00	n/a
2021	60	51	0.00	n/a
2020	76	58	0.00	n/a
2019	64	54	0.00	0.0
2018	65	53	0.00	n/a
2017	60	49	0.00	n/a
2016	66	54	0.00	n/a
2015	66	60	0.00	n/a
2014	76	63	0.00	n/a
2013	62	49	0.00	0.0
2012	85	61	0.00	0.0
2011	67	56	0.00	0.0
2010	60	51	0.00	n/a
2009	61	56	0.00	n/a
2008	64	52	0.00	0.0
2007	69	54	0.00	n/a
2006	76	54	0.00	n/a
2005	65	59	0.00	n/a
2004	64	52	0.00	n/a
2003	68	53	0.00	n/a
2002	63	53	0.00	n/a
2001	72	52	0.00	n/a
2000	66	53	0.00	n/a
1999	65	50	0.00	n/a
1998	69	50	0.00	0.0
1997	61	51	0.00	n/a
1996	63	53	0.07	n/a
1995	81	55	0.00	n/a
1994	68	50	0.00	n/a
1993	68	52	0.00	n/a
1992	68	56	0.00	n/a
1991	83	56	0.00	n/a
1990	68	54	0.03	n/a
1989	85	57	0.00	n/a
1988	79	57	0.00	n/a
1987	73	53	0.00	n/a
1986	68	53	0.00	n/a
1985	64	54	0.00	n/a
1984	65	50	0.01	n/a
1983	70	53	0.00	n/a
1982	75	53	0.00	n/a
1981	72	53	0.00	n/a
1980	65	50	0.00	0.0
1979	64	57	0.09	n/a
1978	59	54	0.00	n/a
1977	60	53	0.00	n/a
1976	65	54	0.00	n/a
1975	67	55	0.00	n/a
1974	80	57	0.00	n/a
1973	59	52	0.00	n/a
1972	68	56	0.00	0.0
1971	60	49	0.00	0.0
1970	66	52	0.06	0.0
1969	62	52	0.00	0.0
1968	70	54	0.00	0.0
1967	71	56	0.00	0.0
1966	79	56	0.00	0.0
1965	62	56	0.00	0.0
1964	84	58	0.00	0.0
1963	69	60	0.00	0.0
1962	72	54	0.00	0.0
1961	59	52	0.00	0.0
1960	58	52	0.00	0.0
1959	62	54	0.00	0.0
1958	70	58	0.12	0.0
1957	73	57	0.00	0.0
1956	64	55	0.01	0.0
1955	62	56	0.00	0.0
1954	66	53	0.00	0.0
1953	62	56	0.20	0.0
1952	68	56	0.00	0.0
1951	68	56	0.00	0.0
1950	72	53	0.00	0.0
1949	56	47	0.06	0.0
1948	61	52	0.00	0.0
1947	73	55	0.00	0.0
1946	66	52	0.00	0.0
1945	61	54	0.00	0.0
1944	64	52	0.00	0.0
1943	58	53	0.00	0.0
1942	78	53	0.00	0.0
1941	63	54	0.00	0.0
1940	82	61	0.00	0.0
1939	72	55	0.00	0.0
1938	70	52	0.00	0.0
1937	74	55	0.00	0.0
1936	70	58	0.00	0.0
1935	80	56	0.00	0.0
1934	67	54	0.02	0.0
1933	88	61	0.00	0.0
1932	70	58	0.00	0.0
1931	68	53	0.00	0.0
1930	83	53	0.00	0.0
1929	67	54	0.00	0.0
1928	80	50	0.00	0.0
1927	78	53	0.00	0.0
1926	71	54	0.00	0.0
1925	71	52	0.00	0.0
1924	72	54	0.00	0.0
1923	81	58	0.00	0.0
1922	66	54	0.00	0.0
1921	84	59	0.00	0.0

What's the all-time high for San Francisco on 10/18?

For the date of Oct 18, the highest temperature ever reached in San Francisco history is 88 °F which happened in 1933.

Highest Temperatures in San Francisco on October 18

Rank	Temperature	Year
1	88 °F	1933
2	85 °F	1989
2	85 °F	2012
4	84 °F	2023
4	84 °F	1921
4	84 °F	1964
7	83 °F	1930
7	83 °F	1991
9	82 °F	1940
10	81 °F	1995
10	81 °F	1923

What's the all-time low for San Francisco on 10/18?

For the date of Oct 18, the lowest temperature ever reached in San Francisco history is 47 °F which happened in 1949.

Lowest Temperatures in San Francisco on October 18

Rank	Temperature	Year
1	47 °F	1949
2	49 °F	2017
2	49 °F	1971
2	49 °F	2013
5	50 °F	1994
5	50 °F	1999
5	50 °F	1998
5	50 °F	1928
5	50 °F	1984
5	50 °F	1980

Lowest High Temperatures in San Francisco on October 18

Rank	Temperature	Year
1	56 °F	1949
2	58 °F	1943
2	58 °F	1960
4	59 °F	1973
4	59 °F	1961
4	59 °F	1978
7	60 °F	2017
7	60 °F	1977
7	60 °F	1971
7	60 °F	2010
7	60 °F	2021

What's the most it has ever rained in San Francisco on 10/18?

For the date of Oct 18, the most precipitation ever recorded in San Francisco history is 0.20 inches which happened in 1953.

All-Time Most Precipitation in San Francisco on October 18

Rank	Precipitation	Year
1	0.20 inches	1953
2	0.12 inches	1958
3	0.09 inches	1979
4	0.07 inches	1996
5	0.06 inches	1970
5	0.06 inches	1949
7	0.03 inches	1990
8	0.02 inches	1934
9	0.01 inches	1956
9	0.01 inches	1984

Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location