San Luis Obispo September 23 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of September 23.
September 23 All-Time Records
1893–2024
Highest temperature 104 °F 1949
Lowest temperature 41 °F 1962
Lowest daily high 62 °F 1955
Highest daily low 74 °F 1939
Most precipitation 0.43 inches 1908
September 23 Average Weather
1991–2020 1
Average high 80.1 °F
Average low 53.1 °F
Chance precipitation 5.0%
San Luis Obispo September 23 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 77 54 0.00 n/a
2022 90 58 0.00 n/a
2021 79 55 0.00 n/a
2020 88 51 0.00 0.0
2019 78 52 0.00 0.0
2018 79 51 0.00 0.0
2017 79 50 0.00 0.0
2016 85 53 0.00 0.0
2015 87 59 0.00 0.0
2014 79 55 0.00 0.0
2013 93 59 0.00 0.0
2012 85 53 0.00 0.0
2011 85 56 0.00 n/a
2010 90 48 0.01 n/a
2009 89 53 0.01 n/a
2008 83 55 0.00 n/a
2007 72 45 0.00 n/a
2006 78 52 0.00 n/a
2005 73 48 0.00 n/a
2004 89 49 0.00 n/a
2003 75 57 0.00 n/a
2002 92 52 0.00 n/a
2001 75 55 0.00 n/a
2000 77 56 0.00 n/a
1999 80 58 0.00 n/a
1998 71 50 0.00 0.0
1997 82 56 n/a n/a
1996 73 54 0.00 0.0
1995 75 53 0.00 0.0
1994 75 53 0.07 0.0
1993 68 48 0.00 0.0
1992 81 46 0.00 0.0
1991 84 50 0.00 0.0
1990 77 57 0.00 0.0
1989 n/a 50 0.00 0.0
1988 76 49 n/a n/a
1987 82 53 0.00 0.0
1986 72 47 0.00 0.0
1985 79 48 0.00 0.0
1984 82 53 0.00 0.0
1983 74 61 0.00 0.0
1982 81 55 0.00 0.0
1981 93 49 0.00 0.0
1980 74 50 0.00 0.0
1979 77 50 0.00 0.0
1978 95 64 0.00 0.0
1977 80 54 0.00 0.0
1976 79 53 0.00 0.0
1975 79 50 0.00 0.0
1974 78 52 0.00 0.0
1973 73 52 0.00 0.0
1972 90 50 0.00 0.0
1971 74 47 0.00 0.0
1970 93 54 0.00 0.0
1969 77 46 0.00 0.0
1968 87 59 0.00 0.0
1967 77 58 0.00 0.0
1966 77 52 0.00 0.0
1965 80 50 0.00 0.0
1964 91 51 0.00 0.0
1963 74 50 0.00 0.0
1962 77 41 0.00 0.0
1961 70 47 0.00 0.0
1960 75 46 0.00 0.0
1959 75 52 0.00 0.0
1958 71 56 0.40 0.0
1957 78 51 0.00 0.0
1956 85 51 0.00 0.0
1955 62 56 0.00 0.0
1954 79 53 0.00 0.0
1953 75 51 0.00 0.0
1952 88 53 0.00 0.0
1951 73 50 0.00 0.0
1950 76 55 0.00 0.0
1949 104 60 0.00 0.0
1948 78 54 0.00 0.0
1947 86 54 0.00 0.0
1946 78 55 0.00 0.0
1945 76 48 0.00 0.0
1944 88 n/a 0.00 0.0
1943 81 57 0.00 0.0
1942 75 52 0.00 n/a
1941 79 45 0.00 n/a
1940 70 55 0.00 n/a
1939 97 74 0.00 n/a
1938 74 50 n/a n/a
1937 76 51 0.00 n/a
1936 74 53 0.00 n/a
1935 71 53 0.00 n/a
1934 68 46 0.00 n/a
1933 81 53 0.00 n/a
1932 76 49 0.00 n/a
1931 80 45 0.00 n/a
1930 70 52 0.00 n/a
1929 75 49 0.00 n/a
1928 75 51 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 0.43 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 0.00 n/a
What's the all-time high for San Luis Obispo on 9/23?
For the date of Sep 23, the highest temperature ever reached in San Luis Obispo history is 104 °F which happened in 1949.
Highest Temperatures in San Luis Obispo on September 23
Rank Temperature Year
1 104 °F 1949
2 97 °F 1939
3 95 °F 1978
4 93 °F 2013
4 93 °F 1981
4 93 °F 1970
7 92 °F 2002
8 91 °F 1964
9 90 °F 1972
9 90 °F 2022
9 90 °F 2010
What's the all-time low for San Luis Obispo on 9/23?
For the date of Sep 23, the lowest temperature ever reached in San Luis Obispo history is 41 °F which happened in 1962.
Lowest Temperatures in San Luis Obispo on September 23
Rank Temperature Year
1 41 °F 1962
2 45 °F 2007
2 45 °F 1931
2 45 °F 1941
5 46 °F 1934
5 46 °F 1969
5 46 °F 1960
5 46 °F 1992
9 47 °F 1961
9 47 °F 1986
9 47 °F 1971
Lowest High Temperatures in San Luis Obispo on September 23
Rank Temperature Year
1 62 °F 1955
2 68 °F 1993
2 68 °F 1934
4 70 °F 1940
4 70 °F 1930
4 70 °F 1961
7 71 °F 1935
7 71 °F 1958
7 71 °F 1998
10 72 °F 2007
10 72 °F 1986
What's the most it has ever rained in San Luis Obispo on 9/23?
For the date of Sep 23, the most precipitation ever recorded in San Luis Obispo history is 0.43 inches which happened in 1908.
All-Time Most Precipitation in San Luis Obispo on September 23
Rank Precipitation Year
1 0.43 inches 1908
2 0.40 inches 1958
3 0.07 inches 1994
4 0.01 inches 2010
4 0.01 inches 2009
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.
© H Brothers Inc, 2021–2024
Contact us | Privacy policy