San Luis Obispo October 18 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of October 18.
October 18 All-Time Records
1893–2024
Highest temperature 98 °F 1933
Lowest temperature 38 °F 1949
Lowest daily high 61 °F 1971
Highest daily low 65 °F 1933
Most precipitation 0.65 inches 1895
October 18 Average Weather
1991–2020 1
Average high 77.9 °F
Average low 50.3 °F
Chance precipitation 12.6%
San Luis Obispo October 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 91 53 0.00 n/a
2022 85 50 0.00 n/a
2021 67 47 0.00 n/a
2020 85 50 0.00 0.0
2019 79 52 0.00 0.0
2018 78 49 0.00 0.0
2017 76 53 0.00 0.0
2016 82 59 0.00 0.0
2015 78 57 0.00 0.0
2014 83 53 0.00 0.0
2013 87 51 0.00 0.0
2012 87 59 0.00 0.0
2011 71 57 0.00 0.0
2010 73 50 0.05 n/a
2009 76 57 0.00 n/a
2008 73 55 0.00 n/a
2007 79 51 0.00 n/a
2006 83 47 0.00 n/a
2005 67 52 0.01 n/a
2004 69 52 0.25 n/a
2003 90 44 0.01 n/a
2002 65 45 0.00 n/a
2001 71 45 0.00 n/a
2000 77 52 0.00 n/a
1999 83 43 0.00 n/a
1998 82 50 0.00 0.0
1997 n/a n/a n/a n/a
1996 81 48 0.00 0.0
1995 86 58 0.00 0.0
1994 76 43 0.00 0.0
1993 71 48 0.00 0.0
1992 89 50 0.00 0.0
1991 75 48 0.00 0.0
1990 n/a n/a n/a n/a
1989 77 50 n/a n/a
1988 96 50 0.00 0.0
1987 74 53 n/a 0.0
1986 68 42 0.00 0.0
1985 69 49 0.00 0.0
1984 63 47 0.00 0.0
1983 79 53 0.00 0.0
1982 79 50 0.00 0.0
1981 85 51 0.00 0.0
1980 75 44 0.00 0.0
1979 83 52 0.00 0.0
1978 72 51 0.00 0.0
1977 65 48 0.00 0.0
1976 71 55 0.00 0.0
1975 72 47 0.00 0.0
1974 94 43 0.00 0.0
1973 75 42 0.00 0.0
1972 72 54 0.03 0.0
1971 61 39 0.00 0.0
1970 74 46 0.00 0.0
1969 66 46 0.00 0.0
1968 84 53 0.00 0.0
1967 95 53 0.00 0.0
1966 86 55 0.00 0.0
1965 74 44 0.00 0.0
1964 84 47 0.00 0.0
1963 71 55 0.00 0.0
1962 78 48 0.00 0.0
1961 88 52 0.00 0.0
1960 72 46 0.00 0.0
1959 78 52 0.00 0.0
1958 86 50 0.00 0.0
1957 77 58 0.00 0.0
1956 74 45 0.00 0.0
1955 62 53 0.00 0.0
1954 78 43 0.00 0.0
1953 76 49 0.00 0.0
1952 77 55 0.00 0.0
1951 79 55 0.00 0.0
1950 85 54 0.00 0.0
1949 63 38 0.00 0.0
1948 87 55 0.00 0.0
1947 83 58 0.00 0.0
1946 75 49 0.00 0.0
1945 69 57 0.00 0.0
1944 75 48 0.00 0.0
1943 76 50 0.00 0.0
1942 88 47 0.00 n/a
1941 70 52 0.00 n/a
1940 95 47 n/a n/a
1939 79 49 n/a n/a
1938 77 44 n/a n/a
1937 87 62 n/a n/a
1936 65 56 0.53 n/a
1935 85 56 0.00 n/a
1934 64 50 0.07 n/a
1933 98 65 0.00 n/a
1932 72 46 n/a n/a
1931 67 48 0.00 n/a
1930 84 50 0.00 n/a
1929 78 47 0.00 n/a
1928 74 44 0.00 n/a
1927 86 46 0.00 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 0.00 n/a
1908 n/a n/a 0.00 n/a
1907 n/a n/a 0.00 n/a
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 0.65 n/a
1894 n/a n/a 0.42 n/a
1893 n/a n/a 0.00 n/a
What's the all-time high for San Luis Obispo on 10/18?
For the date of Oct 18, the highest temperature ever reached in San Luis Obispo history is 98 °F which happened in 1933.
Highest Temperatures in San Luis Obispo on October 18
Rank Temperature Year
1 98 °F 1933
2 96 °F 1988
3 95 °F 1940
3 95 °F 1967
5 94 °F 1974
6 91 °F 2023
7 90 °F 2003
8 89 °F 1992
9 88 °F 1942
9 88 °F 1961
What's the all-time low for San Luis Obispo on 10/18?
For the date of Oct 18, the lowest temperature ever reached in San Luis Obispo history is 38 °F which happened in 1949.
Lowest Temperatures in San Luis Obispo on October 18
Rank Temperature Year
1 38 °F 1949
2 39 °F 1971
3 42 °F 1973
3 42 °F 1986
5 43 °F 1954
5 43 °F 1994
5 43 °F 1974
5 43 °F 1999
9 44 °F 2003
9 44 °F 1938
9 44 °F 1965
9 44 °F 1980
9 44 °F 1928
Lowest High Temperatures in San Luis Obispo on October 18
Rank Temperature Year
1 61 °F 1971
2 62 °F 1955
3 63 °F 1949
3 63 °F 1984
5 64 °F 1934
6 65 °F 2002
6 65 °F 1977
6 65 °F 1936
9 66 °F 1969
10 67 °F 1931
10 67 °F 2005
10 67 °F 2021
What's the most it has ever rained in San Luis Obispo on 10/18?
For the date of Oct 18, the most precipitation ever recorded in San Luis Obispo history is 0.65 inches which happened in 1895.
All-Time Most Precipitation in San Luis Obispo on October 18
Rank Precipitation Year
1 0.65 inches 1895
2 0.53 inches 1936
3 0.42 inches 1894
4 0.25 inches 2004
5 0.07 inches 1934
6 0.05 inches 2010
7 0.03 inches 1972
8 0.01 inches 2005
8 0.01 inches 2003
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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