San Luis Obispo September 11 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of September 11.
September 11 All-Time Records
1893–2024
Highest temperature 102 °F 1979
Lowest temperature 43 °F 1946
Lowest daily high 66 °F 1933
Highest daily low 71 °F 1983
Most precipitation 1.68 inches 1976
September 11 Average Weather
1991–2020 1
Average high 80.4 °F
Average low 53.9 °F
Chance precipitation 2.1%
San Luis Obispo September 11 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 79 58 0.00 n/a
2022 87 67 0.00 n/a
2021 81 57 0.00 n/a
2020 75 51 0.00 0.0
2019 84 50 0.00 0.0
2018 79 50 0.00 0.0
2017 88 65 0.00 0.0
2016 76 58 0.00 0.0
2015 93 67 0.00 0.0
2014 82 55 0.00 0.0
2013 74 56 0.00 0.0
2012 79 54 0.00 0.0
2011 75 59 0.00 n/a
2010 74 48 0.00 n/a
2009 81 55 0.00 n/a
2008 79 53 0.00 n/a
2007 74 57 0.00 n/a
2006 81 52 0.00 n/a
2005 72 46 0.00 n/a
2004 83 54 0.00 n/a
2003 87 54 0.00 n/a
2002 79 50 0.00 n/a
2001 77 55 0.00 n/a
2000 86 52 0.00 n/a
1999 74 46 0.00 n/a
1998 85 n/a 0.00 0.0
1997 88 57 n/a n/a
1996 81 n/a 0.00 0.0
1995 74 54 0.00 0.0
1994 88 n/a 0.00 0.0
1993 79 51 0.00 0.0
1992 77 51 0.00 0.0
1991 75 45 0.00 0.0
1990 76 51 0.00 0.0
1989 69 49 0.00 0.0
1988 72 47 n/a n/a
1987 70 50 0.00 0.0
1986 78 49 0.00 0.0
1985 73 46 0.00 0.0
1984 88 66 0.00 0.0
1983 101 71 0.00 0.0
1982 73 53 0.00 0.0
1981 80 55 0.00 0.0
1980 74 55 0.00 0.0
1979 102 61 0.00 0.0
1978 70 57 0.00 0.0
1977 73 54 0.00 0.0
1976 74 59 1.68 0.0
1975 72 54 0.00 0.0
1974 85 46 0.00 0.0
1973 67 52 0.00 0.0
1972 67 52 0.00 0.0
1971 100 53 0.00 0.0
1970 78 50 0.00 0.0
1969 84 51 0.00 0.0
1968 73 50 0.00 0.0
1967 87 60 0.00 0.0
1966 73 49 0.00 0.0
1965 73 55 0.00 0.0
1964 75 46 0.00 0.0
1963 87 50 0.00 0.0
1962 72 52 0.00 0.0
1961 95 50 0.00 0.0
1960 92 59 0.00 0.0
1959 78 55 0.00 0.0
1958 75 59 0.00 0.0
1957 75 50 0.00 0.0
1956 82 51 0.00 0.0
1955 74 48 0.00 0.0
1954 73 49 0.00 0.0
1953 79 53 0.00 0.0
1952 67 47 0.00 0.0
1951 80 50 0.00 0.0
1950 69 54 0.00 0.0
1949 73 54 0.00 0.0
1948 83 50 0.00 0.0
1947 75 52 0.00 0.0
1946 76 43 0.00 0.0
1945 73 55 0.00 0.0
1944 79 57 0.00 0.0
1943 82 54 0.00 0.0
1942 70 51 0.00 n/a
1941 79 59 0.00 n/a
1940 72 56 0.00 n/a
1939 71 50 0.00 n/a
1938 75 51 n/a n/a
1937 76 49 0.00 n/a
1936 72 53 0.00 n/a
1935 73 47 0.00 n/a
1934 69 55 0.00 n/a
1933 66 52 0.00 n/a
1932 72 54 0.00 n/a
1931 87 52 0.00 n/a
1930 79 50 0.00 n/a
1929 76 54 0.00 n/a
1928 76 45 0.00 n/a
1927 n/a n/a n/a n/a
1926 n/a n/a n/a n/a
1925 n/a n/a n/a n/a
1924 n/a n/a n/a n/a
1923 n/a n/a n/a n/a
1922 n/a n/a n/a n/a
1921 n/a n/a n/a n/a
1920 n/a n/a n/a n/a
1919 n/a n/a n/a n/a
1918 n/a n/a n/a n/a
1917 n/a n/a n/a n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 n/a n/a n/a n/a
1913 n/a n/a n/a n/a
1912 n/a n/a n/a n/a
1911 n/a n/a n/a n/a
1910 n/a n/a n/a n/a
1909 n/a n/a n/a n/a
1908 n/a n/a 0.00 n/a
1907 n/a n/a 0.00 0.0
1906 n/a n/a 0.00 0.0
1905 n/a n/a n/a n/a
1904 n/a n/a n/a n/a
1903 n/a n/a n/a n/a
1902 n/a n/a n/a n/a
1901 n/a n/a n/a n/a
1900 n/a n/a n/a n/a
1899 n/a n/a n/a n/a
1898 n/a n/a n/a n/a
1897 n/a n/a n/a n/a
1896 n/a n/a n/a n/a
1895 n/a n/a 0.00 n/a
1894 n/a n/a 0.00 n/a
1893 n/a n/a 0.03 n/a
What's the all-time high for San Luis Obispo on 9/11?
For the date of Sep 11, the highest temperature ever reached in San Luis Obispo history is 102 °F which happened in 1979.
Highest Temperatures in San Luis Obispo on September 11
Rank Temperature Year
1 102 °F 1979
2 101 °F 1983
3 100 °F 1971
4 95 °F 1961
5 93 °F 2015
6 92 °F 1960
7 88 °F 1994
7 88 °F 2017
7 88 °F 1997
7 88 °F 1984
What's the all-time low for San Luis Obispo on 9/11?
For the date of Sep 11, the lowest temperature ever reached in San Luis Obispo history is 43 °F which happened in 1946.
Lowest Temperatures in San Luis Obispo on September 11
Rank Temperature Year
1 43 °F 1946
2 45 °F 1928
2 45 °F 1991
4 46 °F 2005
4 46 °F 1985
4 46 °F 1974
4 46 °F 1999
4 46 °F 1964
9 47 °F 1952
9 47 °F 1935
9 47 °F 1988
Lowest High Temperatures in San Luis Obispo on September 11
Rank Temperature Year
1 66 °F 1933
2 67 °F 1972
2 67 °F 1973
2 67 °F 1952
5 69 °F 1934
5 69 °F 1989
5 69 °F 1950
8 70 °F 1942
8 70 °F 1987
8 70 °F 1978
What's the most it has ever rained in San Luis Obispo on 9/11?
For the date of Sep 11, the most precipitation ever recorded in San Luis Obispo history is 1.68 inches which happened in 1976.
All-Time Most Precipitation in San Luis Obispo on September 11
Rank Precipitation Year
1 1.68 inches 1976
2 0.03 inches 1893
Weather Station Details
Years Station Coordinates
1999–2024 San Luis Obispo Airport location
1893–1998 San Luis Obispo Poly location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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