San Luis Obispo May 15 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of May 15.
May 15 All-Time Records
1893–2024
Highest temperature 103 °F 2014
Lowest temperature 35 °F 1999
Lowest daily high 59 °F 1975
Highest daily low 62 °F 2014
Most precipitation 0.21 inches 2019
May 15 Average Weather
1991–2020 1
Average high 72.2 °F
Average low 48.9 °F
Chance precipitation 9.4%
San Luis Obispo May 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 70 54 0.00 n/a
2022 69 50 0.00 n/a
2021 62 51 0.00 n/a
2020 74 53 0.00 0.0
2019 69 54 0.21 0.0
2018 69 50 0.00 0.0
2017 65 47 0.00 0.0
2016 72 54 0.00 0.0
2015 68 50 0.00 0.0
2014 103 62 0.00 0.0
2013 73 49 0.00 0.0
2012 76 47 0.00 0.0
2011 61 44 0.12 n/a
2010 69 49 0.00 n/a
2009 77 52 0.00 n/a
2008 91 53 0.00 n/a
2007 66 51 0.00 n/a
2006 70 54 0.00 n/a
2005 84 51 0.00 n/a
2004 71 47 0.00 n/a
2003 70 46 0.00 n/a
2002 67 43 0.00 n/a
2001 84 47 0.00 n/a
2000 68 50 0.07 n/a
1999 61 35 0.00 n/a
1998 64 44 0.00 0.0
1997 83 51 0.00 0.0
1996 77 52 0.03 0.0
1995 65 48 0.00 0.0
1994 76 44 0.00 0.0
1993 74 50 0.00 0.0
1992 65 52 0.00 0.0
1991 67 48 0.00 0.0
1990 68 41 0.00 0.0
1989 68 50 0.00 0.0
1988 85 48 0.00 0.0
1987 78 55 n/a 0.0
1986 68 43 0.00 0.0
1985 79 44 0.00 0.0
1984 65 37 0.00 0.0
1983 66 47 0.00 0.0
1982 69 47 0.00 0.0
1981 67 44 0.00 0.0
1980 63 44 0.00 0.0
1979 76 49 0.00 0.0
1978 76 53 0.00 0.0
1977 65 43 0.00 0.0
1976 79 47 0.00 0.0
1975 59 50 0.00 0.0
1974 65 40 0.00 0.0
1973 60 50 0.00 0.0
1972 84 47 0.00 0.0
1971 77 46 0.00 0.0
1970 94 60 0.00 0.0
1969 69 48 0.00 0.0
1968 67 48 0.00 0.0
1967 86 55 0.00 0.0
1966 64 42 0.00 0.0
1965 63 45 0.00 0.0
1964 64 45 0.00 0.0
1963 67 48 0.00 0.0
1962 62 48 0.00 0.0
1961 71 46 0.00 0.0
1960 64 48 0.00 0.0
1959 71 52 0.00 0.0
1958 80 49 0.00 0.0
1957 65 48 0.04 0.0
1956 82 56 0.00 0.0
1955 59 39 0.00 0.0
1954 61 49 0.00 0.0
1953 67 43 0.00 0.0
1952 72 48 0.00 0.0
1951 71 46 0.00 0.0
1950 61 48 0.00 0.0
1949 64 52 0.03 0.0
1948 76 53 0.00 0.0
1947 68 48 0.00 0.0
1946 62 49 0.00 0.0
1945 66 50 0.00 0.0
1944 66 43 0.04 0.0
1943 67 40 0.00 n/a
1942 67 46 0.07 n/a
1941 71 49 n/a n/a
1940 68 48 0.00 n/a
1939 62 55 0.00 n/a
1938 60 51 0.04 n/a
1937 70 42 0.00 n/a
1936 77 n/a 0.00 n/a
1935 66 50 0.00 n/a
1934 70 46 0.00 n/a
1933 64 45 0.00 n/a
1932 73 44 0.00 n/a
1931 71 54 0.00 n/a
1930 64 45 0.00 n/a
1929 67 50 0.00 n/a
1928 61 53 0.14 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 0.10 n/a
1893 n/a n/a 0.00 n/a
What's the all-time high for San Luis Obispo on 5/15?
For the date of May 15, the highest temperature ever reached in San Luis Obispo history is 103 °F which happened in 2014.
Highest Temperatures in San Luis Obispo on May 15
Rank Temperature Year
1 103 °F 2014
2 94 °F 1970
3 91 °F 2008
4 86 °F 1967
5 85 °F 1988
6 84 °F 2001
6 84 °F 2005
6 84 °F 1972
9 83 °F 1997
10 82 °F 1956
What's the all-time low for San Luis Obispo on 5/15?
For the date of May 15, the lowest temperature ever reached in San Luis Obispo history is 35 °F which happened in 1999.
Lowest Temperatures in San Luis Obispo on May 15
Rank Temperature Year
1 35 °F 1999
2 37 °F 1984
3 39 °F 1955
4 40 °F 1943
4 40 °F 1974
6 41 °F 1990
7 42 °F 1966
7 42 °F 1937
9 43 °F 1977
9 43 °F 2002
9 43 °F 1986
9 43 °F 1944
9 43 °F 1953
Lowest High Temperatures in San Luis Obispo on May 15
Rank Temperature Year
1 59 °F 1975
1 59 °F 1955
3 60 °F 1973
3 60 °F 1938
5 61 °F 1999
5 61 °F 1950
5 61 °F 1954
5 61 °F 1928
5 61 °F 2011
10 62 °F 1946
10 62 °F 1939
10 62 °F 2021
10 62 °F 1962
What's the most it has ever rained in San Luis Obispo on 5/15?
For the date of May 15, the most precipitation ever recorded in San Luis Obispo history is 0.21 inches which happened in 2019.
All-Time Most Precipitation in San Luis Obispo on May 15
Rank Precipitation Year
1 0.21 inches 2019
2 0.14 inches 1928
3 0.12 inches 2011
4 0.10 inches 1894
5 0.07 inches 1942
5 0.07 inches 2000
7 0.04 inches 1938
7 0.04 inches 1944
7 0.04 inches 1957
10 0.03 inches 1949
10 0.03 inches 1996
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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