San Francisco September 17 Weather Records

Daily averages and all-time records for weather in San Francisco, California for the date of September 17.
September 17 All-Time Records
1921–2024
Highest temperature 93 °F 1984
Lowest temperature 51 °F 1999
Lowest daily high 57 °F 1937
Highest daily low 63 °F 1940
Most precipitation 0.20 inches 1921
September 17 Average Weather
1991–2020 1
Average high 70.7 °F
Average low 55.8 °F
Chance precipitation 4.1%
San Francisco September 17 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 69 59 0.00 n/a
2022 65 55 0.00 n/a
2021 64 54 0.00 n/a
2020 67 59 0.00 n/a
2019 70 57 0.00 n/a
2018 62 55 0.00 n/a
2017 69 57 0.00 0.0
2016 68 53 0.00 n/a
2015 67 59 0.00 n/a
2014 74 62 0.00 n/a
2013 66 57 0.00 0.0
2012 62 53 0.00 0.0
2011 66 54 0.00 0.0
2010 65 58 0.00 0.0
2009 77 58 0.00 n/a
2008 65 55 0.00 n/a
2007 68 56 0.00 0.0
2006 81 55 0.00 n/a
2005 65 53 0.00 n/a
2004 68 56 0.00 n/a
2003 72 53 0.00 n/a
2002 69 54 0.00 n/a
2001 66 53 0.01 0.0
2000 92 57 0.00 n/a
1999 62 51 0.00 0.0
1998 64 55 0.00 n/a
1997 72 58 0.00 n/a
1996 80 56 0.00 n/a
1995 76 58 0.00 n/a
1994 68 55 0.00 n/a
1993 68 55 0.00 n/a
1992 68 55 0.00 n/a
1991 77 53 0.00 n/a
1990 73 56 0.00 n/a
1989 65 57 0.15 n/a
1988 78 52 0.00 n/a
1987 71 55 0.00 n/a
1986 70 59 0.13 n/a
1985 67 57 0.00 n/a
1984 93 62 0.00 n/a
1983 70 54 0.00 n/a
1982 69 59 0.02 n/a
1981 67 56 0.00 n/a
1980 72 55 0.00 n/a
1979 71 60 0.00 n/a
1978 66 56 0.00 n/a
1977 69 59 0.01 n/a
1976 67 55 0.00 n/a
1975 61 52 0.00 n/a
1974 69 52 0.00 n/a
1973 63 56 0.00 n/a
1972 64 56 0.00 0.0
1971 63 56 0.00 0.0
1970 83 55 0.00 0.0
1969 65 56 0.00 0.0
1968 82 56 0.00 0.0
1967 68 62 0.00 0.0
1966 74 56 0.00 0.0
1965 72 58 0.00 0.0
1964 65 55 0.00 0.0
1963 65 58 0.00 0.0
1962 60 53 0.00 0.0
1961 66 55 0.00 0.0
1960 63 51 0.00 0.0
1959 67 57 0.05 0.0
1958 68 56 0.00 0.0
1957 69 60 0.00 0.0
1956 79 58 0.00 0.0
1955 64 55 0.00 0.0
1954 67 56 0.00 0.0
1953 68 59 0.00 0.0
1952 65 53 0.00 0.0
1951 63 54 0.02 0.0
1950 66 55 0.00 0.0
1949 77 58 0.00 0.0
1948 70 55 0.00 0.0
1947 62 53 0.00 0.0
1946 79 58 0.00 0.0
1945 63 55 0.00 0.0
1944 68 53 0.00 0.0
1943 68 58 0.00 0.0
1942 64 57 0.00 0.0
1941 65 56 0.00 0.0
1940 70 63 0.01 0.0
1939 87 61 0.00 0.0
1938 62 52 0.00 0.0
1937 57 52 0.00 0.0
1936 84 54 0.00 0.0
1935 89 62 0.00 0.0
1934 79 53 0.00 0.0
1933 65 54 0.00 0.0
1932 66 58 0.00 0.0
1931 64 54 0.00 0.0
1930 70 61 0.00 0.0
1929 73 55 0.00 0.0
1928 64 53 0.00 0.0
1927 69 58 0.00 0.0
1926 70 54 0.00 0.0
1925 70 59 0.00 0.0
1924 65 54 0.00 0.0
1923 83 63 0.00 0.0
1922 64 53 0.00 0.0
1921 60 54 0.20 0.0
What's the all-time high for San Francisco on 9/17?
For the date of Sep 17, the highest temperature ever reached in San Francisco history is 93 °F which happened in 1984.
Highest Temperatures in San Francisco on September 17
Rank Temperature Year
1 93 °F 1984
2 92 °F 2000
3 89 °F 1935
4 87 °F 1939
5 84 °F 1936
6 83 °F 1923
6 83 °F 1970
8 82 °F 1968
9 81 °F 2006
10 80 °F 1996
What's the all-time low for San Francisco on 9/17?
For the date of Sep 17, the lowest temperature ever reached in San Francisco history is 51 °F which has happened 2 times, most recently in 1999.
Lowest Temperatures in San Francisco on September 17
Rank Temperature Year
1 51 °F 1999
1 51 °F 1960
3 52 °F 1974
3 52 °F 1937
3 52 °F 1988
3 52 °F 1975
3 52 °F 1938
8 53 °F 1934
8 53 °F 1947
8 53 °F 2012
8 53 °F 1944
8 53 °F 2016
8 53 °F 1962
8 53 °F 1991
8 53 °F 2005
8 53 °F 1952
8 53 °F 1922
8 53 °F 2003
8 53 °F 1928
8 53 °F 2001
Lowest High Temperatures in San Francisco on September 17
Rank Temperature Year
1 57 °F 1937
2 60 °F 1962
2 60 °F 1921
4 61 °F 1975
5 62 °F 1999
5 62 °F 1947
5 62 °F 2012
5 62 °F 1938
5 62 °F 2018
10 63 °F 1945
10 63 °F 1960
10 63 °F 1971
10 63 °F 1973
10 63 °F 1951
What's the most it has ever rained in San Francisco on 9/17?
For the date of Sep 17, the most precipitation ever recorded in San Francisco history is 0.20 inches which happened in 1921.
All-Time Most Precipitation in San Francisco on September 17
Rank Precipitation Year
1 0.20 inches 1921
2 0.15 inches 1989
3 0.13 inches 1986
4 0.05 inches 1959
5 0.02 inches 1982
5 0.02 inches 1951
7 0.01 inches 2001
7 0.01 inches 1977
7 0.01 inches 1940
Weather Station Details
Years Station Coordinates
1921–2024 Downtown San Francisco location