San Francisco July 21 Weather Records

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

What's the all-time high for San Francisco on 7/21?

For the date of Jul 21, the highest temperature ever reached in San Francisco history is 78 °F which happened in 1939.

Highest Temperatures in San Francisco on July 21

Rank	Temperature	Year
1	78 °F	1939
2	76 °F	1996
3	75 °F	2006
4	74 °F	2012
4	74 °F	1989
6	73 °F	2004
7	72 °F	2007
7	72 °F	1997
7	72 °F	1927
7	72 °F	1954

What's the all-time low for San Francisco on 7/21?

For the date of Jul 21, the lowest temperature ever reached in San Francisco history is 49 °F which has happened 2 times, most recently in 1962.

Lowest Temperatures in San Francisco on July 21

Rank	Temperature	Year
1	49 °F	1962
1	49 °F	1955
3	50 °F	1950
3	50 °F	1978
3	50 °F	1927
3	50 °F	1932
3	50 °F	1981
8	51 °F	1982
8	51 °F	2022
8	51 °F	1951
8	51 °F	1969
8	51 °F	1936
8	51 °F	2000

Lowest High Temperatures in San Francisco on July 21

Rank	Temperature	Year
1	56 °F	2010
2	57 °F	1944
3	58 °F	1968
4	59 °F	2009
4	59 °F	1969
6	60 °F	1950
6	60 °F	1984
6	60 °F	1955
6	60 °F	1982
6	60 °F	2022
6	60 °F	1970
6	60 °F	2000

What's the most it has ever rained in San Francisco on 7/21?

For the date of Jul 21, the most precipitation ever recorded in San Francisco history is 0.07 inches which happened in 1979.

All-Time Most Precipitation in San Francisco on July 21

Rank	Precipitation	Year
1	0.07 inches	1979
2	0.02 inches	2000
3	0.01 inches	2014

Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location