San Luis Obispo August 15 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of August 15.
August 15 All-Time Records
1893–2024
Highest temperature 101 °F 1994
Lowest temperature 45 °F 1999
Lowest daily high 65 °F 1980
Highest daily low 68 °F 1994
Most precipitation 0.12 inches 1976
August 15 Average Weather
1991–2020 1
Average high 80.0 °F
Average low 54.9 °F
Chance precipitation 1.3%
San Luis Obispo August 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 85 60 0.00 n/a
2022 80 52 0.00 n/a
2021 79 58 0.00 n/a
2020 96 63 0.00 0.0
2019 85 53 0.00 0.0
2018 82 57 0.00 0.0
2017 70 58 0.00 0.0
2016 78 57 0.00 0.0
2015 92 56 0.00 0.0
2014 78 56 0.00 0.0
2013 85 52 0.00 0.0
2012 78 55 0.00 0.0
2011 86 52 0.00 n/a
2010 73 54 0.00 n/a
2009 78 54 0.00 n/a
2008 84 58 0.04 n/a
2007 78 53 0.00 n/a
2006 75 52 0.00 n/a
2005 71 55 0.00 n/a
2004 81 53 0.00 n/a
2003 86 51 0.00 n/a
2002 78 57 0.00 n/a
2001 81 53 0.00 n/a
2000 87 51 0.00 n/a
1999 74 45 0.00 n/a
1998 90 59 0.00 0.0
1997 80 59 0.00 0.0
1996 91 58 0.00 0.0
1995 86 53 0.00 0.0
1994 101 68 0.00 0.0
1993 71 56 0.00 0.0
1992 79 54 0.00 0.0
1991 76 56 0.00 0.0
1990 73 51 0.00 0.0
1989 82 50 0.00 0.0
1988 71 46 0.00 0.0
1987 68 55 0.00 0.0
1986 77 52 0.00 0.0
1985 72 49 0.00 0.0
1984 85 n/a 0.08 0.0
1983 90 59 0.00 0.0
1982 74 54 0.00 0.0
1981 81 56 0.00 0.0
1980 65 54 0.00 0.0
1979 75 53 0.00 0.0
1978 n/a n/a n/a n/a
1977 75 52 0.00 0.0
1976 67 56 0.12 0.0
1975 70 52 0.00 0.0
1974 75 56 0.00 0.0
1973 80 53 0.00 0.0
1972 74 50 0.00 0.0
1971 85 56 0.00 0.0
1970 77 51 0.00 0.0
1969 78 52 0.00 0.0
1968 74 55 0.00 0.0
1967 82 55 0.00 0.0
1966 77 53 0.00 0.0
1965 83 54 0.00 0.0
1964 69 55 0.00 0.0
1963 91 52 0.00 0.0
1962 88 55 0.00 0.0
1961 73 54 0.00 0.0
1960 75 53 0.00 0.0
1959 76 53 0.00 0.0
1958 86 54 0.00 0.0
1957 80 52 0.00 0.0
1956 78 52 0.00 0.0
1955 73 51 0.00 0.0
1954 73 51 0.00 0.0
1953 72 48 0.00 0.0
1952 76 50 0.00 0.0
1951 82 50 0.00 0.0
1950 82 50 0.00 0.0
1949 68 50 0.00 0.0
1948 77 49 0.00 0.0
1947 74 53 0.00 0.0
1946 72 53 0.00 0.0
1945 75 52 0.00 0.0
1944 81 50 0.00 0.0
1943 72 53 0.00 n/a
1942 75 54 0.00 n/a
1941 87 52 0.00 n/a
1940 68 54 0.00 n/a
1939 75 53 0.00 n/a
1938 70 55 0.00 n/a
1937 74 56 0.00 n/a
1936 79 54 0.00 n/a
1935 69 54 0.00 n/a
1934 75 47 0.00 n/a
1933 89 58 0.00 n/a
1932 70 53 0.00 n/a
1931 77 52 0.00 n/a
1930 80 54 0.00 n/a
1929 90 56 0.00 n/a
1928 76 54 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 n/a 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 8/15?
For the date of Aug 15, the highest temperature ever reached in San Luis Obispo history is 101 °F which happened in 1994.
Highest Temperatures in San Luis Obispo on August 15
Rank Temperature Year
1 101 °F 1994
2 96 °F 2020
3 92 °F 2015
4 91 °F 1963
4 91 °F 1996
6 90 °F 1983
6 90 °F 1998
6 90 °F 1929
9 89 °F 1933
10 88 °F 1962
What's the all-time low for San Luis Obispo on 8/15?
For the date of Aug 15, the lowest temperature ever reached in San Luis Obispo history is 45 °F which happened in 1999.
Lowest Temperatures in San Luis Obispo on August 15
Rank Temperature Year
1 45 °F 1999
2 46 °F 1988
3 47 °F 1934
4 48 °F 1953
5 49 °F 1985
5 49 °F 1948
7 50 °F 1951
7 50 °F 1949
7 50 °F 1950
7 50 °F 1972
7 50 °F 1952
7 50 °F 1989
7 50 °F 1944
Lowest High Temperatures in San Luis Obispo on August 15
Rank Temperature Year
1 65 °F 1980
2 67 °F 1976
3 68 °F 1949
3 68 °F 1940
3 68 °F 1987
6 69 °F 1964
6 69 °F 1935
8 70 °F 2017
8 70 °F 1932
8 70 °F 1975
8 70 °F 1938
What's the most it has ever rained in San Luis Obispo on 8/15?
For the date of Aug 15, the most precipitation ever recorded in San Luis Obispo history is 0.12 inches which happened in 1976.
All-Time Most Precipitation in San Luis Obispo on August 15
Rank Precipitation Year
1 0.12 inches 1976
2 0.08 inches 1984
3 0.04 inches 2008
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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