San Luis Obispo June 21 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of June 21.
June 21 All-Time Records
1893–2024
Highest temperature 105 °F 1973
Lowest temperature 42 °F 1991
Lowest daily high 66 °F 1988
Highest daily low 63 °F 2008
Most precipitation 0.01 inches 1988
June 21 Average Weather
1991–2020 1
Average high 76.5 °F
Average low 51.9 °F
Chance precipitation 2.3%
San Luis Obispo June 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 70 47 0.00 n/a
2022 92 55 0.00 n/a
2021 71 57 0.00 n/a
2020 77 55 0.00 0.0
2019 73 56 0.00 n/a
2018 78 49 0.00 0.0
2017 77 53 0.00 0.0
2016 93 56 0.00 0.0
2015 74 50 0.00 0.0
2014 78 51 0.00 0.0
2013 77 51 0.00 0.0
2012 70 54 0.00 0.0
2011 78 52 0.00 n/a
2010 72 51 0.00 n/a
2009 73 51 0.00 n/a
2008 n/a 63 0.00 n/a
2007 80 52 0.00 n/a
2006 78 48 0.00 n/a
2005 73 49 0.00 n/a
2004 73 53 0.00 n/a
2003 70 49 0.00 n/a
2002 67 53 0.00 n/a
2001 89 50 0.00 n/a
2000 76 55 0.00 n/a
1999 67 51 0.00 n/a
1998 68 51 0.00 0.0
1997 n/a n/a 0.00 0.0
1996 84 49 0.00 0.0
1995 86 55 0.00 0.0
1994 70 45 0.00 0.0
1993 75 54 0.00 0.0
1992 80 49 0.00 0.0
1991 74 42 0.00 0.0
1990 87 49 0.00 0.0
1989 89 58 0.00 0.0
1988 66 47 0.01 0.0
1987 68 50 0.00 0.0
1986 n/a n/a n/a n/a
1985 74 52 0.00 0.0
1984 71 47 0.00 0.0
1983 76 46 0.00 0.0
1982 70 55 0.00 0.0
1981 87 56 0.00 0.0
1980 71 49 0.00 0.0
1979 73 48 0.00 0.0
1978 72 47 0.00 0.0
1977 71 51 0.00 0.0
1976 70 54 0.00 0.0
1975 67 50 0.00 0.0
1974 84 54 0.00 0.0
1973 105 63 0.00 0.0
1972 75 50 0.00 0.0
1971 77 51 0.00 0.0
1970 77 49 0.00 0.0
1969 68 54 0.01 0.0
1968 80 52 0.00 0.0
1967 71 48 0.00 0.0
1966 78 45 0.00 0.0
1965 66 53 0.00 0.0
1964 74 47 0.00 0.0
1963 69 47 0.00 0.0
1962 83 49 0.00 0.0
1961 80 50 0.00 0.0
1960 95 50 0.00 0.0
1959 86 52 0.00 0.0
1958 75 54 0.00 0.0
1957 81 52 0.00 0.0
1956 69 49 0.00 0.0
1955 n/a n/a n/a n/a
1954 96 55 0.00 0.0
1953 72 51 0.00 0.0
1952 71 48 0.00 0.0
1951 70 56 0.00 0.0
1950 73 51 0.00 0.0
1949 78 50 0.00 0.0
1948 81 52 0.00 0.0
1947 83 45 0.00 0.0
1946 66 50 0.00 0.0
1945 72 53 0.00 0.0
1944 69 53 0.00 0.0
1943 74 50 0.00 n/a
1942 79 53 0.00 n/a
1941 69 48 0.00 n/a
1940 72 51 0.00 n/a
1939 75 50 0.00 n/a
1938 74 50 0.00 n/a
1937 83 56 0.00 n/a
1936 81 52 n/a n/a
1935 74 50 0.00 n/a
1934 75 54 0.00 n/a
1933 72 42 0.00 n/a
1932 80 50 0.00 n/a
1931 70 50 0.00 n/a
1930 68 54 0.00 n/a
1929 105 n/a 0.00 n/a
1928 75 46 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 6/21?
For the date of Jun 21, the highest temperature ever reached in San Luis Obispo history is 105 °F which has happened 2 times, most recently in 1973.
Highest Temperatures in San Luis Obispo on June 21
Rank Temperature Year
1 105 °F 1973
1 105 °F 1929
3 96 °F 1954
4 95 °F 1960
5 93 °F 2016
6 92 °F 2022
7 89 °F 2001
7 89 °F 1989
9 87 °F 1990
9 87 °F 1981
What's the all-time low for San Luis Obispo on 6/21?
For the date of Jun 21, the lowest temperature ever reached in San Luis Obispo history is 42 °F which has happened 2 times, most recently in 1991.
Lowest Temperatures in San Luis Obispo on June 21
Rank Temperature Year
1 42 °F 1933
1 42 °F 1991
3 45 °F 1947
3 45 °F 1994
3 45 °F 1966
6 46 °F 1983
6 46 °F 1928
8 47 °F 1984
8 47 °F 1978
8 47 °F 2023
8 47 °F 1964
8 47 °F 1988
8 47 °F 1963
Lowest High Temperatures in San Luis Obispo on June 21
Rank Temperature Year
1 66 °F 1965
1 66 °F 1946
1 66 °F 1988
4 67 °F 1975
4 67 °F 1999
4 67 °F 2002
7 68 °F 1930
7 68 °F 1987
7 68 °F 1998
7 68 °F 1969
What's the most it has ever rained in San Luis Obispo on 6/21?
For the date of Jun 21, the most precipitation ever recorded in San Luis Obispo history is 0.01 inches which has happened 2 times, most recently in 1988.
All-Time Most Precipitation in San Luis Obispo on June 21
Rank Precipitation Year
1 0.01 inches 1988
1 0.01 inches 1969
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