San Luis Obispo September 28 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of September 28.
September 28 All-Time Records
1893–2024
Highest temperature 110 °F 2010
Lowest temperature 43 °F 1964
Lowest daily high 64 °F 2002
Highest daily low 66 °F 2010
Most precipitation 0.09 inches 1976
September 28 Average Weather
1991–2020 1
Average high 80.1 °F
Average low 52.5 °F
Chance precipitation 6.1%
San Luis Obispo September 28 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 88 58 0.00 n/a
2022 84 54 0.00 n/a
2021 78 55 0.00 n/a
2020 79 57 0.00 0.0
2019 68 49 0.00 n/a
2018 73 54 0.00 0.0
2017 93 53 0.00 0.0
2016 88 53 0.00 0.0
2015 83 60 0.00 0.0
2014 73 53 0.00 0.0
2013 89 50 0.00 0.0
2012 73 55 0.00 0.0
2011 81 58 0.00 n/a
2010 110 66 0.00 n/a
2009 74 58 0.00 n/a
2008 77 56 0.00 n/a
2007 67 56 0.00 n/a
2006 74 56 0.00 n/a
2005 91 54 0.00 n/a
2004 71 51 0.00 n/a
2003 75 50 0.00 n/a
2002 64 56 0.02 n/a
2001 83 49 0.00 n/a
2000 79 52 0.00 n/a
1999 77 51 0.01 n/a
1998 75 44 0.00 0.0
1997 93 64 n/a n/a
1996 74 52 0.00 0.0
1995 82 56 0.00 0.0
1994 86 57 0.08 0.0
1993 100 55 0.00 0.0
1992 86 47 0.00 0.0
1991 83 50 0.00 0.0
1990 76 54 0.00 0.0
1989 n/a n/a 0.00 0.0
1988 88 59 n/a n/a
1987 72 52 0.00 0.0
1986 70 46 n/a 0.0
1985 69 59 0.00 0.0
1984 90 60 0.00 0.0
1983 n/a n/a 0.00 0.0
1982 70 46 0.00 0.0
1981 80 55 0.00 0.0
1980 68 50 0.00 0.0
1979 74 52 0.00 0.0
1978 100 55 0.00 0.0
1977 72 48 0.00 0.0
1976 73 56 0.09 0.0
1975 72 50 0.00 0.0
1974 68 54 0.00 0.0
1973 98 63 0.00 0.0
1972 75 54 0.00 0.0
1971 72 47 0.00 0.0
1970 100 46 0.00 0.0
1969 78 51 0.00 0.0
1968 76 49 0.00 0.0
1967 82 58 0.05 0.0
1966 86 51 0.00 0.0
1965 65 47 0.00 0.0
1964 65 43 0.00 0.0
1963 99 50 0.00 0.0
1962 72 51 0.00 0.0
1961 96 54 0.00 0.0
1960 74 52 0.00 0.0
1959 78 48 0.00 0.0
1958 97 55 0.00 0.0
1957 80 56 0.00 0.0
1956 90 52 0.00 0.0
1955 68 52 0.00 0.0
1954 77 51 0.00 0.0
1953 69 57 0.00 0.0
1952 77 52 0.00 0.0
1951 72 55 0.00 0.0
1950 75 55 0.00 0.0
1949 73 54 0.00 0.0
1948 88 45 0.00 0.0
1947 74 51 0.00 0.0
1946 91 50 0.00 0.0
1945 84 50 0.00 0.0
1944 72 51 0.00 0.0
1943 74 51 0.00 0.0
1942 n/a 48 0.00 n/a
1941 76 51 0.00 n/a
1940 82 60 0.00 n/a
1939 71 52 0.00 n/a
1938 75 54 n/a n/a
1937 73 51 0.00 n/a
1936 76 46 0.00 n/a
1935 70 52 0.00 n/a
1934 93 53 0.00 n/a
1933 74 53 0.00 n/a
1932 74 54 0.00 n/a
1931 72 46 0.00 n/a
1930 71 50 0.00 n/a
1929 73 44 0.00 n/a
1928 94 48 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 0.00 n/a
What's the all-time high for San Luis Obispo on 9/28?
For the date of Sep 28, the highest temperature ever reached in San Luis Obispo history is 110 °F which happened in 2010.
Highest Temperatures in San Luis Obispo on September 28
Rank Temperature Year
1 110 °F 2010
2 100 °F 1978
2 100 °F 1993
2 100 °F 1970
5 99 °F 1963
6 98 °F 1973
7 97 °F 1958
8 96 °F 1961
9 94 °F 1928
10 93 °F 1997
10 93 °F 2017
10 93 °F 1934
What's the all-time low for San Luis Obispo on 9/28?
For the date of Sep 28, the lowest temperature ever reached in San Luis Obispo history is 43 °F which happened in 1964.
Lowest Temperatures in San Luis Obispo on September 28
Rank Temperature Year
1 43 °F 1964
2 44 °F 1998
2 44 °F 1929
4 45 °F 1948
5 46 °F 1970
5 46 °F 1936
5 46 °F 1986
5 46 °F 1931
5 46 °F 1982
10 47 °F 1971
10 47 °F 1992
10 47 °F 1965
Lowest High Temperatures in San Luis Obispo on September 28
Rank Temperature Year
1 64 °F 2002
2 65 °F 1964
2 65 °F 1965
4 67 °F 2007
5 68 °F 2019
5 68 °F 1974
5 68 °F 1980
5 68 °F 1955
9 69 °F 1985
9 69 °F 1953
What's the most it has ever rained in San Luis Obispo on 9/28?
For the date of Sep 28, the most precipitation ever recorded in San Luis Obispo history is 0.09 inches which happened in 1976.
All-Time Most Precipitation in San Luis Obispo on September 28
Rank Precipitation Year
1 0.09 inches 1976
2 0.08 inches 1994
3 0.05 inches 1967
4 0.02 inches 2002
5 0.01 inches 1999
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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