San Luis Obispo July 20 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of July 20.
July 20 All-Time Records
1893–2024
Highest temperature 94 °F 1996
Lowest temperature 45 °F 1987
Lowest daily high 66 °F 1942
Highest daily low 67 °F 2015
Most precipitation 0.04 inches 1985
July 20 Average Weather
1991–2020 1
Average high 78.9 °F
Average low 54.7 °F
Chance precipitation 0.8%
San Luis Obispo July 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 78 53 0.00 n/a
2022 81 52 0.00 n/a
2021 82 57 0.00 n/a
2020 74 58 0.00 0.0
2019 73 57 0.00 n/a
2018 85 59 0.00 0.0
2017 77 52 0.00 0.0
2016 85 52 0.00 0.0
2015 87 67 0.00 0.0
2014 75 61 0.00 0.0
2013 77 54 0.00 0.0
2012 77 53 0.00 0.0
2011 80 55 0.00 n/a
2010 72 53 0.00 n/a
2009 84 57 0.00 n/a
2008 72 55 0.00 n/a
2007 81 53 0.00 n/a
2006 83 59 0.00 n/a
2005 80 56 0.00 n/a
2004 79 56 0.00 n/a
2003 83 53 0.00 n/a
2002 72 55 0.00 n/a
2001 72 51 0.00 n/a
2000 72 55 0.00 n/a
1999 70 56 0.00 n/a
1998 86 54 0.00 0.0
1997 78 53 0.00 0.0
1996 94 59 0.00 0.0
1995 76 57 0.00 0.0
1994 70 53 0.00 0.0
1993 74 50 0.00 0.0
1992 82 52 0.00 0.0
1991 74 51 0.00 0.0
1990 79 55 0.00 0.0
1989 82 53 0.00 0.0
1988 81 55 0.00 0.0
1987 74 45 0.00 0.0
1986 77 47 0.00 0.0
1985 77 53 0.04 0.0
1984 76 n/a 0.00 0.0
1983 79 51 0.00 0.0
1982 72 52 0.00 0.0
1981 83 51 0.00 0.0
1980 74 55 0.00 0.0
1979 80 53 0.00 0.0
1978 74 50 0.00 0.0
1977 76 55 0.00 0.0
1976 72 50 0.00 0.0
1975 77 53 0.00 0.0
1974 88 53 0.00 0.0
1973 67 54 0.00 0.0
1972 72 54 0.04 0.0
1971 78 52 0.00 0.0
1970 86 56 0.00 0.0
1969 80 55 0.00 0.0
1968 85 53 0.00 0.0
1967 87 52 0.00 0.0
1966 72 48 0.00 0.0
1965 75 53 0.00 0.0
1964 71 49 0.00 0.0
1963 73 49 0.00 0.0
1962 75 52 0.00 0.0
1961 88 54 0.00 0.0
1960 85 49 0.00 0.0
1959 78 56 0.00 0.0
1958 75 54 0.00 0.0
1957 74 55 0.00 0.0
1956 78 53 0.00 0.0
1955 73 50 0.00 0.0
1954 82 50 0.00 0.0
1953 75 54 0.00 0.0
1952 75 53 0.00 0.0
1951 88 56 0.00 0.0
1950 76 54 0.00 0.0
1949 76 48 0.00 0.0
1948 72 53 0.00 0.0
1947 80 51 0.00 0.0
1946 75 56 0.00 0.0
1945 76 51 0.00 0.0
1944 74 51 0.00 0.0
1943 72 49 0.00 n/a
1942 66 46 0.00 n/a
1941 80 53 0.00 n/a
1940 79 53 0.00 n/a
1939 79 49 0.00 n/a
1938 79 54 0.00 n/a
1937 77 53 0.00 n/a
1936 91 61 0.00 n/a
1935 72 53 0.00 n/a
1934 68 52 0.00 n/a
1933 79 53 0.00 n/a
1932 82 49 0.00 n/a
1931 83 51 0.00 n/a
1930 76 49 0.00 n/a
1929 83 52 0.00 n/a
1928 69 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 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 7/20?
For the date of Jul 20, the highest temperature ever reached in San Luis Obispo history is 94 °F which happened in 1996.
Highest Temperatures in San Luis Obispo on July 20
Rank Temperature Year
1 94 °F 1996
2 91 °F 1936
3 88 °F 1961
3 88 °F 1951
3 88 °F 1974
6 87 °F 1967
6 87 °F 2015
8 86 °F 1970
8 86 °F 1998
10 85 °F 1968
10 85 °F 2018
10 85 °F 2016
10 85 °F 1960
What's the all-time low for San Luis Obispo on 7/20?
For the date of Jul 20, the lowest temperature ever reached in San Luis Obispo history is 45 °F which happened in 1987.
Lowest Temperatures in San Luis Obispo on July 20
Rank Temperature Year
1 45 °F 1987
2 46 °F 1942
3 47 °F 1986
4 48 °F 1949
4 48 °F 1966
6 49 °F 1964
6 49 °F 1963
6 49 °F 1930
6 49 °F 1943
6 49 °F 1960
6 49 °F 1939
6 49 °F 1932
Lowest High Temperatures in San Luis Obispo on July 20
Rank Temperature Year
1 66 °F 1942
2 67 °F 1973
3 68 °F 1934
4 69 °F 1928
5 70 °F 1999
5 70 °F 1994
7 71 °F 1964
8 72 °F 1982
8 72 °F 2008
8 72 °F 2001
8 72 °F 1976
8 72 °F 1972
8 72 °F 2000
8 72 °F 1935
8 72 °F 2002
8 72 °F 1943
8 72 °F 1948
8 72 °F 1966
8 72 °F 2010
What's the most it has ever rained in San Luis Obispo on 7/20?
For the date of Jul 20, the most precipitation ever recorded in San Luis Obispo history is 0.04 inches which has happened 2 times, most recently in 1985.
All-Time Most Precipitation in San Luis Obispo on July 20
Rank Precipitation Year
1 0.04 inches 1972
1 0.04 inches 1985
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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