San Francisco September 15 Weather Records

Daily averages and all-time records for weather in San Francisco, California for the date of September 15.
September 15 All-Time Records
1921–2024
Highest temperature 94 °F 1971
Lowest temperature 51 °F 2012
Lowest daily high 58 °F 1973
Highest daily low 65 °F 1971
Most precipitation 0.03 inches 1996
September 15 Average Weather
1991–2020 1
Average high 70.8 °F
Average low 55.9 °F
Chance precipitation 3.8%
San Francisco September 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 67 60 0.00 n/a
2022 65 58 0.00 n/a
2021 63 55 0.00 n/a
2020 69 58 0.00 n/a
2019 67 57 0.00 n/a
2018 62 53 0.00 n/a
2017 70 56 0.00 0.0
2016 62 54 0.00 n/a
2015 64 56 0.01 n/a
2014 71 60 0.00 n/a
2013 68 57 0.00 0.0
2012 60 51 0.00 0.0
2011 62 56 0.00 0.0
2010 61 52 0.00 0.0
2009 74 57 0.00 n/a
2008 62 53 0.00 n/a
2007 67 57 0.00 0.0
2006 62 53 0.00 n/a
2005 60 53 0.00 n/a
2004 77 57 0.00 n/a
2003 67 55 0.00 n/a
2002 65 55 0.00 n/a
2001 61 53 0.00 0.0
2000 65 56 0.00 n/a
1999 62 53 0.00 0.0
1998 63 56 0.00 n/a
1997 75 55 0.00 n/a
1996 70 60 0.03 n/a
1995 70 56 0.00 n/a
1994 92 55 0.00 n/a
1993 66 56 0.00 n/a
1992 69 55 0.00 n/a
1991 67 54 0.00 n/a
1990 72 57 0.00 n/a
1989 67 54 0.00 n/a
1988 62 53 0.00 n/a
1987 77 57 0.00 n/a
1986 71 58 0.00 n/a
1985 74 57 0.00 n/a
1984 71 57 0.00 n/a
1983 71 56 0.00 n/a
1982 68 58 0.00 n/a
1981 64 56 0.00 n/a
1980 74 57 0.00 n/a
1979 73 57 0.00 n/a
1978 70 57 0.00 n/a
1977 62 56 0.00 n/a
1976 64 54 0.00 n/a
1975 66 56 0.00 n/a
1974 59 53 0.00 n/a
1973 58 51 0.00 n/a
1972 62 54 0.00 0.0
1971 94 65 0.00 0.0
1970 69 52 0.00 0.0
1969 62 53 0.00 0.0
1968 73 58 0.00 0.0
1967 68 56 0.00 0.0
1966 75 57 0.00 0.0
1965 65 56 0.00 0.0
1964 82 56 0.00 0.0
1963 70 58 0.00 0.0
1962 73 55 0.00 0.0
1961 68 59 0.00 0.0
1960 62 56 0.00 0.0
1959 65 57 0.00 0.0
1958 87 62 0.00 0.0
1957 68 60 0.00 0.0
1956 68 54 0.00 0.0
1955 66 53 0.00 0.0
1954 66 57 0.00 0.0
1953 66 58 0.00 0.0
1952 63 56 0.00 0.0
1951 85 57 0.00 0.0
1950 64 55 0.00 0.0
1949 67 55 0.00 0.0
1948 70 53 0.00 0.0
1947 62 52 0.00 0.0
1946 65 55 0.00 0.0
1945 64 52 0.00 0.0
1944 76 52 0.00 0.0
1943 65 58 0.00 0.0
1942 79 59 0.00 0.0
1941 65 57 0.00 0.0
1940 72 62 0.00 0.0
1939 79 57 0.00 0.0
1938 66 54 0.00 0.0
1937 74 57 0.00 0.0
1936 76 54 0.00 0.0
1935 77 62 0.03 0.0
1934 85 60 0.00 0.0
1933 78 55 0.00 0.0
1932 65 55 0.00 0.0
1931 66 55 0.00 0.0
1930 67 55 0.00 0.0
1929 65 53 0.00 0.0
1928 77 55 0.00 0.0
1927 76 54 0.00 0.0
1926 66 54 0.00 0.0
1925 70 56 0.00 0.0
1924 65 53 0.00 0.0
1923 66 55 0.00 0.0
1922 80 56 0.00 0.0
1921 64 52 0.00 0.0
What's the all-time high for San Francisco on 9/15?
For the date of Sep 15, the highest temperature ever reached in San Francisco history is 94 °F which happened in 1971.
Highest Temperatures in San Francisco on September 15
Rank Temperature Year
1 94 °F 1971
2 92 °F 1994
3 87 °F 1958
4 85 °F 1934
4 85 °F 1951
6 82 °F 1964
7 80 °F 1922
8 79 °F 1939
8 79 °F 1942
10 78 °F 1933
What's the all-time low for San Francisco on 9/15?
For the date of Sep 15, the lowest temperature ever reached in San Francisco history is 51 °F which has happened 2 times, most recently in 2012.
Lowest Temperatures in San Francisco on September 15
Rank Temperature Year
1 51 °F 2012
1 51 °F 1973
3 52 °F 2010
3 52 °F 1945
3 52 °F 1921
3 52 °F 1944
3 52 °F 1947
3 52 °F 1970
9 53 °F 1948
9 53 °F 2005
9 53 °F 1974
9 53 °F 2018
9 53 °F 1969
9 53 °F 2008
9 53 °F 1999
9 53 °F 1924
9 53 °F 1955
9 53 °F 1929
9 53 °F 2006
9 53 °F 1988
9 53 °F 2001
Lowest High Temperatures in San Francisco on September 15
Rank Temperature Year
1 58 °F 1973
2 59 °F 1974
3 60 °F 2005
3 60 °F 2012
5 61 °F 2001
5 61 °F 2010
7 62 °F 1977
7 62 °F 1947
7 62 °F 2016
7 62 °F 1972
7 62 °F 2018
7 62 °F 1969
7 62 °F 2008
7 62 °F 1999
7 62 °F 2011
7 62 °F 1960
7 62 °F 2006
7 62 °F 1988
What's the most it has ever rained in San Francisco on 9/15?
For the date of Sep 15, the most precipitation ever recorded in San Francisco history is 0.03 inches which has happened 2 times, most recently in 1996.
All-Time Most Precipitation in San Francisco on September 15
Rank Precipitation Year
1 0.03 inches 1935
1 0.03 inches 1996
3 0.01 inches 2015
Weather Station Details
Years Station Coordinates
1921–2024 Downtown San Francisco location