San Francisco September 30 Weather Records

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	66	55	0.02	n/a
2022	74	56	0.00	n/a
2021	83	56	0.00	n/a
2020	81	57	0.00	n/a
2019	62	54	0.00	n/a
2018	70	61	0.00	n/a
2017	69	56	0.00	0.0
2016	60	51	0.00	n/a
2015	67	58	0.05	n/a
2014	69	58	0.00	n/a
2013	68	57	0.00	0.0
2012	84	50	0.00	0.0
2011	69	60	0.00	0.0
2010	62	53	0.00	0.0
2009	67	51	0.00	n/a
2008	71	56	0.00	n/a
2007	71	53	0.00	0.0
2006	62	54	0.00	n/a
2005	78	55	0.00	n/a
2004	65	53	0.00	n/a
2003	63	53	0.00	n/a
2002	69	55	0.00	n/a
2001	96	57	0.00	0.0
2000	76	58	0.00	n/a
1999	79	55	0.00	0.0
1998	60	55	0.01	n/a
1997	69	56	0.00	n/a
1996	60	53	0.00	n/a
1995	78	53	0.00	n/a
1994	73	56	0.00	n/a
1993	71	56	0.00	n/a
1992	78	60	0.00	n/a
1991	68	56	0.00	n/a
1990	78	58	0.00	n/a
1989	71	58	0.00	n/a
1988	85	55	0.00	n/a
1987	72	55	0.00	n/a
1986	72	56	0.00	n/a
1985	69	57	0.00	n/a
1984	65	57	0.03	n/a
1983	68	56	0.63	n/a
1982	74	58	0.00	n/a
1981	78	56	0.00	n/a
1980	91	57	0.00	n/a
1979	81	55	0.00	n/a
1978	72	53	0.00	n/a
1977	71	55	0.00	n/a
1976	69	60	0.08	n/a
1975	60	52	0.00	n/a
1974	85	56	0.00	n/a
1973	61	53	0.00	n/a
1972	64	56	0.00	0.0
1971	62	53	0.00	0.0
1970	71	55	0.00	0.0
1969	68	57	0.00	0.0
1968	67	57	0.00	0.0
1967	66	59	0.00	0.0
1966	71	60	0.00	0.0
1965	84	60	0.00	0.0
1964	69	53	0.00	0.0
1963	65	54	0.00	0.0
1962	77	58	0.00	0.0
1961	77	57	0.00	0.0
1960	58	54	0.00	0.0
1959	72	55	0.00	0.0
1958	71	54	0.00	0.0
1957	70	60	0.00	0.0
1956	67	54	0.00	0.0
1955	58	49	0.00	0.0
1954	58	51	0.00	0.0
1953	67	55	0.00	0.0
1952	89	51	0.00	0.0
1951	66	55	0.00	0.0
1950	67	50	0.00	0.0
1949	74	54	0.00	0.0
1948	71	51	0.00	0.0
1947	61	57	0.00	0.0
1946	61	52	0.00	0.0
1945	72	54	0.00	0.0
1944	64	54	0.00	0.0
1943	72	55	0.00	0.0
1942	66	55	0.00	0.0
1941	74	56	0.00	0.0
1940	80	59	0.00	0.0
1939	68	57	0.18	0.0
1938	71	57	0.00	0.0
1937	63	54	0.00	0.0
1936	61	54	0.00	0.0
1935	77	57	0.00	0.0
1934	83	55	0.00	0.0
1933	82	54	0.00	0.0
1932	66	54	0.00	0.0
1931	86	58	0.00	0.0
1930	64	55	0.02	0.0
1929	62	53	0.00	0.0
1928	65	54	0.01	0.0
1927	76	60	0.00	0.0
1926	67	52	0.00	0.0
1925	74	55	0.00	0.0
1924	68	54	0.00	0.0
1923	85	56	0.00	0.0
1922	70	52	0.00	0.0
1921	69	54	0.00	0.0

What's the all-time high for San Francisco on 9/30?

For the date of Sep 30, the highest temperature ever reached in San Francisco history is 96 °F which happened in 2001.

Highest Temperatures in San Francisco on September 30

Rank	Temperature	Year
1	96 °F	2001
2	91 °F	1980
3	89 °F	1952
4	86 °F	1931
5	85 °F	1974
5	85 °F	1988
5	85 °F	1923
8	84 °F	2012
8	84 °F	1965
10	83 °F	1934
10	83 °F	2021

What's the all-time low for San Francisco on 9/30?

For the date of Sep 30, the lowest temperature ever reached in San Francisco history is 49 °F which happened in 1955.

Lowest Temperatures in San Francisco on September 30

Rank	Temperature	Year
1	49 °F	1955
2	50 °F	2012
2	50 °F	1950
4	51 °F	2016
4	51 °F	1948
4	51 °F	2009
4	51 °F	1952
4	51 °F	1954
9	52 °F	1946
9	52 °F	1922
9	52 °F	1926
9	52 °F	1975

Lowest High Temperatures in San Francisco on September 30

Rank	Temperature	Year
1	58 °F	1955
1	58 °F	1960
1	58 °F	1954
4	60 °F	1998
4	60 °F	1996
4	60 °F	1975
4	60 °F	2016
8	61 °F	1946
8	61 °F	1947
8	61 °F	1973
8	61 °F	1936

What's the most it has ever rained in San Francisco on 9/30?

For the date of Sep 30, the most precipitation ever recorded in San Francisco history is 0.63 inches which happened in 1983.

All-Time Most Precipitation in San Francisco on September 30

Rank	Precipitation	Year
1	0.63 inches	1983
2	0.18 inches	1939
3	0.08 inches	1976
4	0.05 inches	2015
5	0.03 inches	1984
6	0.02 inches	2023
6	0.02 inches	1930
8	0.01 inches	1998
8	0.01 inches	1928

Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location