San Francisco August 31 Weather Records

Daily averages and all-time records for weather in San Francisco, California for the date of August 31.
August 31 All-Time Records
1921–2024
Highest temperature 87 °F 1943
Lowest temperature 51 °F 1998
Lowest daily high 59 °F 1962
Highest daily low 62 °F 1947
Most precipitation 0.02 inches 1944
August 31 Average Weather
1991–2020 1
Average high 69.6 °F
Average low 56.1 °F
Chance precipitation 2.4%
San Francisco August 31 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 65 57 0.00 n/a
2022 66 58 0.00 n/a
2021 65 57 0.00 n/a
2020 64 55 0.00 n/a
2019 76 60 0.00 n/a
2018 66 56 0.00 n/a
2017 86 55 0.00 n/a
2016 66 57 0.00 n/a
2015 75 60 0.00 n/a
2014 71 59 0.00 n/a
2013 65 56 0.00 0.0
2012 60 55 0.00 0.0
2011 65 54 0.00 n/a
2010 72 54 0.00 n/a
2009 66 53 0.00 n/a
2008 71 54 0.00 n/a
2007 70 58 0.00 n/a
2006 67 55 0.00 0.0
2005 81 56 0.00 n/a
2004 70 59 0.00 n/a
2003 65 53 0.00 n/a
2002 67 53 0.00 n/a
2001 67 54 0.00 n/a
2000 68 58 0.00 0.0
1999 69 54 0.00 0.0
1998 76 51 0.00 0.0
1997 72 59 0.00 n/a
1996 71 57 0.00 n/a
1995 68 53 0.00 n/a
1994 68 56 0.00 n/a
1993 74 61 0.00 n/a
1992 70 57 0.00 n/a
1991 71 58 0.00 n/a
1990 73 60 0.00 n/a
1989 74 54 0.00 n/a
1988 68 55 0.00 n/a
1987 72 59 0.00 n/a
1986 74 55 0.00 n/a
1985 84 57 0.00 n/a
1984 76 54 0.00 n/a
1983 69 58 0.00 n/a
1982 74 53 0.00 n/a
1981 63 54 0.00 n/a
1980 62 54 0.00 n/a
1979 76 58 0.00 n/a
1978 69 55 0.00 n/a
1977 68 55 0.00 n/a
1976 65 53 0.00 n/a
1975 67 54 0.00 n/a
1974 62 54 0.00 n/a
1973 60 53 0.00 0.0
1972 65 54 0.00 0.0
1971 67 59 0.00 0.0
1970 62 52 0.00 0.0
1969 70 52 0.00 0.0
1968 64 59 0.00 0.0
1967 61 54 0.00 0.0
1966 60 54 0.01 0.0
1965 65 59 0.00 0.0
1964 63 54 0.01 0.0
1963 64 55 0.00 0.0
1962 59 51 0.00 0.0
1961 67 55 0.00 0.0
1960 61 53 0.00 0.0
1959 77 54 0.00 0.0
1958 66 56 0.00 0.0
1957 67 51 0.00 0.0
1956 63 55 0.00 0.0
1955 74 53 0.00 0.0
1954 73 55 0.00 0.0
1953 63 55 0.00 0.0
1952 80 51 0.00 0.0
1951 60 52 0.00 0.0
1950 62 52 0.00 0.0
1949 69 54 0.00 0.0
1948 71 56 0.00 0.0
1947 83 62 0.00 0.0
1946 59 52 0.00 0.0
1945 65 52 0.00 0.0
1944 68 55 0.02 0.0
1943 87 55 0.00 0.0
1942 62 54 0.00 0.0
1941 70 59 0.00 0.0
1940 62 55 0.00 0.0
1939 67 56 0.00 0.0
1938 61 54 0.00 0.0
1937 62 54 0.00 0.0
1936 65 53 0.00 0.0
1935 59 52 0.00 0.0
1934 63 52 0.00 0.0
1933 77 54 0.00 0.0
1932 86 59 0.00 0.0
1931 62 52 0.00 0.0
1930 69 55 0.00 0.0
1929 69 58 0.00 0.0
1928 61 51 0.00 0.0
1927 81 55 0.00 0.0
1926 80 60 0.00 0.0
1925 68 56 0.00 0.0
1924 62 53 0.00 0.0
1923 66 55 0.00 0.0
1922 81 59 0.00 0.0
1921 62 53 0.00 0.0
What's the all-time high for San Francisco on 8/31?
For the date of Aug 31, the highest temperature ever reached in San Francisco history is 87 °F which happened in 1943.
Highest Temperatures in San Francisco on August 31
Rank Temperature Year
1 87 °F 1943
2 86 °F 2017
2 86 °F 1932
4 84 °F 1985
5 83 °F 1947
6 81 °F 2005
6 81 °F 1922
6 81 °F 1927
9 80 °F 1926
9 80 °F 1952
What's the all-time low for San Francisco on 8/31?
For the date of Aug 31, the lowest temperature ever reached in San Francisco history is 51 °F which has happened 5 times, most recently in 1998.
Lowest Temperatures in San Francisco on August 31
Rank Temperature Year
1 51 °F 1952
1 51 °F 1957
1 51 °F 1928
1 51 °F 1962
1 51 °F 1998
6 52 °F 1969
6 52 °F 1945
6 52 °F 1934
6 52 °F 1970
6 52 °F 1950
6 52 °F 1931
6 52 °F 1951
6 52 °F 1935
6 52 °F 1946
Lowest High Temperatures in San Francisco on August 31
Rank Temperature Year
1 59 °F 1946
1 59 °F 1962
1 59 °F 1935
4 60 °F 1973
4 60 °F 1966
4 60 °F 2012
4 60 °F 1951
8 61 °F 1967
8 61 °F 1928
8 61 °F 1938
8 61 °F 1960
What's the most it has ever rained in San Francisco on 8/31?
For the date of Aug 31, the most precipitation ever recorded in San Francisco history is 0.02 inches which happened in 1944.
All-Time Most Precipitation in San Francisco on August 31
Rank Precipitation Year
1 0.02 inches 1944
2 0.01 inches 1964
2 0.01 inches 1966
Weather Station Details
Years Station Coordinates
1921–2024 Downtown San Francisco location