San Luis Obispo September 19 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of September 19.
September 19 All-Time Records
1893–2024
Highest temperature 99 °F 2015
Lowest temperature 41 °F 1989
Lowest daily high 62 °F 1945
Highest daily low 66 °F 1939
Most precipitation 0.54 inches 2022
September 19 Average Weather
1991–2020 1
Average high 80.3 °F
Average low 53.4 °F
Chance precipitation 3.7%
San Luis Obispo September 19 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 82 59 0.00 n/a
2022 67 61 0.54 n/a
2021 85 57 0.00 n/a
2020 85 54 0.00 0.0
2019 76 53 0.00 0.0
2018 72 50 0.00 0.0
2017 80 58 0.00 0.0
2016 92 57 0.00 0.0
2015 99 61 0.00 0.0
2014 81 61 0.00 0.0
2013 87 54 0.00 0.0
2012 73 53 0.00 0.0
2011 82 52 0.00 n/a
2010 76 52 0.00 n/a
2009 80 55 0.00 n/a
2008 75 51 0.00 n/a
2007 66 52 0.00 n/a
2006 78 49 0.00 n/a
2005 73 47 0.00 n/a
2004 71 47 0.00 n/a
2003 83 51 0.00 n/a
2002 78 47 0.00 n/a
2001 72 55 0.00 n/a
2000 81 55 0.00 n/a
1999 70 49 0.00 n/a
1998 87 64 0.00 0.0
1997 78 48 0.00 n/a
1996 85 55 0.00 0.0
1995 87 54 0.00 0.0
1994 76 54 0.00 0.0
1993 77 49 0.00 0.0
1992 74 49 0.00 0.0
1991 77 50 0.00 0.0
1990 76 51 0.00 0.0
1989 n/a 41 0.15 0.0
1988 78 43 n/a n/a
1987 73 54 0.00 0.0
1986 75 48 0.00 0.0
1985 68 48 0.00 0.0
1984 n/a n/a n/a 0.0
1983 85 56 0.00 0.0
1982 78 54 0.00 0.0
1981 82 54 0.00 0.0
1980 72 50 0.00 0.0
1979 91 53 0.00 0.0
1978 71 54 0.00 0.0
1977 77 50 0.00 0.0
1976 80 55 0.00 0.0
1975 72 53 0.00 0.0
1974 73 52 0.00 0.0
1973 77 53 0.00 0.0
1972 75 47 0.00 0.0
1971 77 52 0.00 0.0
1970 81 48 0.00 0.0
1969 77 52 0.00 0.0
1968 75 47 0.00 0.0
1967 74 61 0.00 0.0
1966 72 51 0.00 0.0
1965 75 54 0.00 0.0
1964 88 52 0.00 0.0
1963 75 57 0.08 0.0
1962 75 52 0.00 0.0
1961 74 50 0.00 0.0
1960 73 52 0.00 0.0
1959 66 61 0.37 0.0
1958 89 52 0.00 0.0
1957 77 53 0.00 0.0
1956 87 54 0.00 0.0
1955 70 54 0.00 0.0
1954 82 46 0.00 0.0
1953 73 53 0.00 0.0
1952 72 49 0.00 0.0
1951 87 55 0.00 0.0
1950 72 50 0.00 0.0
1949 79 53 0.00 0.0
1948 74 50 0.00 0.0
1947 81 45 0.00 0.0
1946 95 57 0.00 0.0
1945 62 58 0.00 0.0
1944 70 51 0.00 0.0
1943 84 52 0.00 0.0
1942 n/a 48 0.00 n/a
1941 74 51 0.00 n/a
1940 78 52 0.00 n/a
1939 94 66 0.00 n/a
1938 77 52 n/a n/a
1937 80 52 0.00 n/a
1936 74 49 0.00 n/a
1935 76 53 0.00 n/a
1934 83 55 0.00 n/a
1933 74 47 0.00 n/a
1932 69 56 0.00 n/a
1931 87 52 0.00 n/a
1930 78 46 0.00 n/a
1929 80 64 0.02 n/a
1928 87 52 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 9/19?
For the date of Sep 19, the highest temperature ever reached in San Luis Obispo history is 99 °F which happened in 2015.
Highest Temperatures in San Luis Obispo on September 19
Rank Temperature Year
1 99 °F 2015
2 95 °F 1946
3 94 °F 1939
4 92 °F 2016
5 91 °F 1979
6 89 °F 1958
7 88 °F 1964
8 87 °F 1998
8 87 °F 2013
8 87 °F 1928
8 87 °F 1931
8 87 °F 1995
8 87 °F 1951
8 87 °F 1956
What's the all-time low for San Luis Obispo on 9/19?
For the date of Sep 19, the lowest temperature ever reached in San Luis Obispo history is 41 °F which happened in 1989.
Lowest Temperatures in San Luis Obispo on September 19
Rank Temperature Year
1 41 °F 1989
2 43 °F 1988
3 45 °F 1947
4 46 °F 1930
4 46 °F 1954
6 47 °F 2004
6 47 °F 1972
6 47 °F 2002
6 47 °F 1933
6 47 °F 2005
6 47 °F 1968
Lowest High Temperatures in San Luis Obispo on September 19
Rank Temperature Year
1 62 °F 1945
2 66 °F 1959
2 66 °F 2007
4 67 °F 2022
5 68 °F 1985
6 69 °F 1932
7 70 °F 1955
7 70 °F 1999
7 70 °F 1944
10 71 °F 2004
10 71 °F 1978
What's the most it has ever rained in San Luis Obispo on 9/19?
For the date of Sep 19, the most precipitation ever recorded in San Luis Obispo history is 0.54 inches which happened in 2022.
All-Time Most Precipitation in San Luis Obispo on September 19
Rank Precipitation Year
1 0.54 inches 2022
2 0.37 inches 1959
3 0.15 inches 1989
4 0.08 inches 1963
5 0.02 inches 1929
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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