San Francisco December 18 Weather Records

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	62	50	1.40	n/a
2022	53	43	0.00	n/a
2021	52	42	0.00	n/a
2020	61	45	0.00	n/a
2019	54	48	0.86	n/a
2018	62	50	0.00	n/a
2017	60	48	0.00	n/a
2016	52	40	0.00	n/a
2015	58	48	0.32	n/a
2014	60	50	0.04	n/a
2013	56	48	0.00	n/a
2012	52	44	0.00	0.0
2011	52	47	0.00	n/a
2010	59	54	0.28	0.0
2009	60	50	0.00	n/a
2008	54	40	0.00	n/a
2007	56	49	0.79	n/a
2006	57	40	0.00	n/a
2005	64	49	2.15	n/a
2004	65	46	0.00	n/a
2003	63	48	0.00	n/a
2002	56	43	0.04	n/a
2001	60	43	0.00	n/a
2000	61	50	0.00	n/a
1999	60	46	0.00	n/a
1998	65	48	0.00	0.0
1997	64	49	0.00	n/a
1996	63	48	0.00	n/a
1995	52	48	0.17	n/a
1994	60	47	0.06	n/a
1993	54	44	0.00	n/a
1992	55	40	0.00	n/a
1991	61	49	0.09	n/a
1990	58	44	0.03	n/a
1989	55	46	0.00	n/a
1988	58	47	0.00	n/a
1987	56	43	0.00	n/a
1986	61	51	0.45	n/a
1985	62	45	0.00	n/a
1984	50	45	0.03	n/a
1983	54	49	0.00	n/a
1982	55	47	0.00	n/a
1981	57	51	0.30	n/a
1980	57	52	0.00	n/a
1979	57	50	0.03	n/a
1978	49	45	n/a	n/a
1977	56	47	0.01	n/a
1976	67	48	0.00	n/a
1975	63	47	0.00	n/a
1974	56	46	0.00	n/a
1973	62	47	0.00	n/a
1972	59	47	0.52	0.0
1971	55	45	0.00	0.0
1970	50	43	0.25	0.0
1969	59	52	0.23	0.0
1968	55	43	0.06	0.0
1967	50	43	0.24	0.0
1966	49	43	0.00	0.0
1965	51	41	0.00	0.0
1964	54	47	0.23	0.0
1963	46	38	0.09	0.0
1962	62	52	0.00	0.0
1961	50	46	0.03	0.0
1960	61	50	0.01	0.0
1959	63	50	0.00	0.0
1958	66	53	0.00	0.0
1957	56	50	0.03	0.0
1956	60	46	0.00	0.0
1955	58	51	0.51	0.0
1954	55	42	0.00	0.0
1953	58	52	0.00	0.0
1952	57	50	0.00	0.0
1951	56	47	0.50	0.0
1950	56	49	0.00	0.0
1949	55	48	0.19	0.0
1948	55	46	0.00	0.0
1947	55	45	0.00	0.0
1946	58	45	0.00	0.0
1945	54	46	0.00	0.0
1944	57	52	0.29	0.0
1943	58	51	0.04	0.0
1942	52	48	0.00	0.0
1941	61	53	0.28	0.0
1940	63	53	0.14	0.0
1939	64	50	0.00	0.0
1938	57	52	0.10	0.0
1937	64	49	0.00	0.0
1936	61	46	0.00	0.0
1935	61	46	0.00	0.0
1934	56	48	0.00	0.0
1933	51	43	0.00	0.0
1932	48	44	0.00	0.0
1931	58	48	0.02	0.0
1930	59	48	0.00	0.0
1929	61	53	0.00	0.0
1928	56	43	0.00	0.0
1927	54	46	0.00	0.0
1926	57	46	0.00	0.0
1925	58	49	0.14	0.0
1924	45	36	0.00	0.0
1923	57	48	0.08	0.0
1922	60	48	0.00	0.0
1921	52	48	0.02	0.0

What's the all-time high for San Francisco on 12/18?

For the date of Dec 18, the highest temperature ever reached in San Francisco history is 67 °F which happened in 1976.

Highest Temperatures in San Francisco on December 18

Rank	Temperature	Year
1	67 °F	1976
2	66 °F	1958
3	65 °F	2004
3	65 °F	1998
5	64 °F	1997
5	64 °F	2005
5	64 °F	1937
5	64 °F	1939
9	63 °F	1940
9	63 °F	2003
9	63 °F	1996
9	63 °F	1975
9	63 °F	1959

What's the all-time low for San Francisco on 12/18?

For the date of Dec 18, the lowest temperature ever reached in San Francisco history is 36 °F which happened in 1924.

Lowest Temperatures in San Francisco on December 18

Rank	Temperature	Year
1	36 °F	1924
2	38 °F	1963
3	40 °F	2016
3	40 °F	2008
3	40 °F	2006
3	40 °F	1992
7	41 °F	1965
8	42 °F	2021
8	42 °F	1954
10	43 °F	1967
10	43 °F	1966
10	43 °F	2001
10	43 °F	1928
10	43 °F	2022
10	43 °F	1933
10	43 °F	1987
10	43 °F	1968
10	43 °F	1970
10	43 °F	2002

Lowest High Temperatures in San Francisco on December 18

Rank	Temperature	Year
1	45 °F	1924
2	46 °F	1963
3	48 °F	1932
4	49 °F	1978
4	49 °F	1966
6	50 °F	1984
6	50 °F	1961
6	50 °F	1967
6	50 °F	1970
10	51 °F	1965
10	51 °F	1933

What's the most it has ever rained in San Francisco on 12/18?

For the date of Dec 18, the most precipitation ever recorded in San Francisco history is 2.15 inches which happened in 2005.

All-Time Most Precipitation in San Francisco on December 18

Rank	Precipitation	Year
1	2.15 inches	2005
2	1.40 inches	2023
3	0.86 inches	2019
4	0.79 inches	2007
5	0.52 inches	1972
6	0.51 inches	1955
7	0.50 inches	1951
8	0.45 inches	1986
9	0.32 inches	2015
10	0.30 inches	1981

Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location