San Luis Obispo July 18 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of July 18.
July 18 All-Time Records
1893–2024
Highest temperature 104 °F 1936
Lowest temperature 45 °F 1987
Lowest daily high 66 °F 1932
Highest daily low 60 °F 2014
Most precipitation none -
July 18 Average Weather
1991–2020 1
Average high 78.7 °F
Average low 54.5 °F
Chance precipitation 0.8%
San Luis Obispo July 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 86 56 0.00 n/a
2022 81 53 0.00 n/a
2021 84 57 0.00 n/a
2020 78 57 0.00 0.0
2019 75 56 0.00 n/a
2018 83 57 0.00 0.0
2017 83 56 0.00 0.0
2016 79 56 0.00 0.0
2015 79 51 0.00 0.0
2014 75 60 0.00 0.0
2013 73 54 0.00 0.0
2012 77 54 0.00 0.0
2011 78 50 0.00 n/a
2010 80 54 0.00 n/a
2009 85 57 0.00 n/a
2008 76 54 0.00 n/a
2007 79 54 0.00 n/a
2006 82 59 0.00 n/a
2005 72 54 0.00 n/a
2004 83 56 0.00 n/a
2003 90 54 0.00 n/a
2002 77 56 0.00 n/a
2001 72 55 0.00 n/a
2000 77 50 0.00 n/a
1999 72 54 0.00 n/a
1998 88 55 0.00 0.0
1997 76 52 0.00 0.0
1996 77 51 0.00 0.0
1995 84 56 0.00 0.0
1994 76 n/a 0.00 0.0
1993 76 49 0.00 0.0
1992 79 52 0.00 0.0
1991 75 55 0.00 0.0
1990 81 57 0.00 0.0
1989 86 53 0.00 0.0
1988 92 53 0.00 0.0
1987 69 45 0.00 0.0
1986 68 46 0.00 0.0
1985 78 52 0.00 0.0
1984 88 58 0.00 0.0
1983 75 50 0.00 0.0
1982 73 53 0.00 0.0
1981 77 53 0.00 0.0
1980 72 54 0.00 0.0
1979 78 52 0.00 0.0
1978 79 49 0.00 0.0
1977 78 53 0.00 0.0
1976 72 56 0.00 0.0
1975 72 53 0.00 0.0
1974 91 57 0.00 0.0
1973 70 54 0.00 0.0
1972 80 56 0.00 0.0
1971 81 51 0.00 0.0
1970 78 52 0.00 0.0
1969 80 50 0.00 0.0
1968 83 53 0.00 0.0
1967 71 51 0.00 0.0
1966 81 53 0.00 0.0
1965 77 56 0.00 0.0
1964 81 51 0.00 0.0
1963 82 51 0.00 0.0
1962 72 53 0.00 0.0
1961 87 55 0.00 0.0
1960 90 49 0.00 0.0
1959 77 54 0.00 0.0
1958 72 53 0.00 0.0
1957 78 53 0.00 0.0
1956 75 52 0.00 0.0
1955 74 52 0.00 0.0
1954 82 51 0.00 0.0
1953 74 53 0.00 0.0
1952 74 53 0.00 0.0
1951 90 60 0.00 0.0
1950 74 57 0.00 0.0
1949 78 52 0.00 0.0
1948 79 53 0.00 0.0
1947 92 55 0.00 0.0
1946 79 52 0.00 0.0
1945 73 56 0.00 0.0
1944 73 49 0.00 0.0
1943 70 52 0.00 n/a
1942 74 54 0.00 n/a
1941 77 52 0.00 n/a
1940 70 56 0.00 n/a
1939 72 51 0.00 n/a
1938 80 54 0.00 n/a
1937 73 55 0.00 n/a
1936 104 57 0.00 n/a
1935 80 49 0.00 n/a
1934 71 52 0.00 n/a
1933 77 49 0.00 n/a
1932 66 48 0.00 n/a
1931 80 54 0.00 n/a
1930 75 48 0.00 n/a
1929 77 51 0.00 n/a
1928 74 47 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 7/18?
For the date of Jul 18, the highest temperature ever reached in San Luis Obispo history is 104 °F which happened in 1936.
Highest Temperatures in San Luis Obispo on July 18
Rank Temperature Year
1 104 °F 1936
2 92 °F 1947
2 92 °F 1988
4 91 °F 1974
5 90 °F 2003
5 90 °F 1960
5 90 °F 1951
8 88 °F 1998
8 88 °F 1984
10 87 °F 1961
What's the all-time low for San Luis Obispo on 7/18?
For the date of Jul 18, 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 18
Rank Temperature Year
1 45 °F 1987
2 46 °F 1986
3 47 °F 1928
4 48 °F 1932
4 48 °F 1930
6 49 °F 1960
6 49 °F 1944
6 49 °F 1933
6 49 °F 1935
6 49 °F 1978
6 49 °F 1993
Lowest High Temperatures in San Luis Obispo on July 18
Rank Temperature Year
1 66 °F 1932
2 68 °F 1986
3 69 °F 1987
4 70 °F 1940
4 70 °F 1973
4 70 °F 1943
7 71 °F 1967
7 71 °F 1934
9 72 °F 1976
9 72 °F 2001
9 72 °F 1980
9 72 °F 2005
9 72 °F 1999
9 72 °F 1962
9 72 °F 1975
9 72 °F 1939
9 72 °F 1958
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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