San Luis Obispo October 20 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of October 20.
October 20 All-Time Records
1893–2024
Highest temperature 97 °F 2016
Lowest temperature 35 °F 1949
Lowest daily high 60 °F 1949
Highest daily low 64 °F 2016
Most precipitation 0.83 inches 1979
October 20 Average Weather
1991–2020 1
Average high 77.8 °F
Average low 50.0 °F
Chance precipitation 12.2%
San Luis Obispo October 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 78 57 0.00 n/a
2022 91 57 0.00 n/a
2021 74 43 0.00 n/a
2020 71 53 0.00 0.0
2019 83 53 0.00 0.0
2018 91 46 0.00 n/a
2017 70 55 0.07 0.0
2016 97 64 0.00 0.0
2015 83 57 0.00 0.0
2014 76 60 0.00 0.0
2013 74 51 0.00 0.0
2012 64 56 0.00 0.0
2011 72 55 0.00 0.0
2010 72 52 0.00 n/a
2009 75 54 0.00 n/a
2008 74 51 0.00 n/a
2007 75 53 0.00 n/a
2006 87 45 0.00 n/a
2005 75 49 0.00 n/a
2004 67 48 0.07 n/a
2003 81 48 0.00 n/a
2002 68 50 0.00 n/a
2001 67 52 0.00 n/a
2000 75 49 0.01 n/a
1999 86 43 0.00 n/a
1998 87 49 0.00 0.0
1997 n/a n/a n/a n/a
1996 81 46 0.00 0.0
1995 78 57 0.00 0.0
1994 72 41 0.00 0.0
1993 87 48 0.00 0.0
1992 81 45 0.00 0.0
1991 93 55 0.00 0.0
1990 n/a n/a n/a n/a
1989 79 49 n/a n/a
1988 74 54 0.00 0.0
1987 72 49 n/a 0.0
1986 73 49 0.00 0.0
1985 69 43 0.00 0.0
1984 78 51 0.00 0.0
1983 n/a n/a 0.00 0.0
1982 78 48 0.00 0.0
1981 94 44 0.00 0.0
1980 84 49 0.00 0.0
1979 69 55 0.83 0.0
1978 72 50 0.00 0.0
1977 66 52 0.00 0.0
1976 71 49 0.00 0.0
1975 86 49 0.00 0.0
1974 75 54 0.00 0.0
1973 85 48 0.00 0.0
1972 65 54 0.00 0.0
1971 70 41 0.00 0.0
1970 69 43 0.00 0.0
1969 72 49 0.00 0.0
1968 84 45 0.00 0.0
1967 90 49 0.00 0.0
1966 88 49 0.00 0.0
1965 82 55 0.00 0.0
1964 97 50 0.00 0.0
1963 67 54 0.00 0.0
1962 69 44 0.00 0.0
1961 68 55 0.00 0.0
1960 70 49 0.00 0.0
1959 75 53 0.00 0.0
1958 79 57 0.00 0.0
1957 67 50 0.06 0.0
1956 81 48 0.00 0.0
1955 68 49 0.00 0.0
1954 77 47 0.00 0.0
1953 70 46 0.00 0.0
1952 79 50 0.00 0.0
1951 84 62 0.00 0.0
1950 69 48 0.00 0.0
1949 60 35 0.00 0.0
1948 69 43 0.00 0.0
1947 66 52 0.00 0.0
1946 77 41 0.00 0.0
1945 73 49 0.00 0.0
1944 71 47 0.00 0.0
1943 66 50 0.12 0.0
1942 90 47 0.00 n/a
1941 65 47 0.00 n/a
1940 87 n/a n/a n/a
1939 88 53 n/a n/a
1938 86 50 n/a n/a
1937 87 49 n/a n/a
1936 60 53 0.00 n/a
1935 69 51 0.00 n/a
1934 74 54 0.00 n/a
1933 70 47 0.00 n/a
1932 77 43 n/a n/a
1931 65 55 0.00 n/a
1930 68 55 0.00 n/a
1929 88 53 0.00 n/a
1928 70 46 0.00 n/a
1927 85 45 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 0.20 n/a
1894 n/a n/a 0.43 n/a
1893 n/a n/a 0.00 n/a
What's the all-time high for San Luis Obispo on 10/20?
For the date of Oct 20, the highest temperature ever reached in San Luis Obispo history is 97 °F which has happened 2 times, most recently in 2016.
Highest Temperatures in San Luis Obispo on October 20
Rank Temperature Year
1 97 °F 2016
1 97 °F 1964
3 94 °F 1981
4 93 °F 1991
5 91 °F 2018
5 91 °F 2022
7 90 °F 1942
7 90 °F 1967
9 88 °F 1939
9 88 °F 1929
9 88 °F 1966
What's the all-time low for San Luis Obispo on 10/20?
For the date of Oct 20, the lowest temperature ever reached in San Luis Obispo history is 35 °F which happened in 1949.
Lowest Temperatures in San Luis Obispo on October 20
Rank Temperature Year
1 35 °F 1949
2 41 °F 1994
2 41 °F 1971
2 41 °F 1946
5 43 °F 1948
5 43 °F 1932
5 43 °F 1999
5 43 °F 1985
5 43 °F 2021
5 43 °F 1970
Lowest High Temperatures in San Luis Obispo on October 20
Rank Temperature Year
1 60 °F 1949
1 60 °F 1936
3 64 °F 2012
4 65 °F 1941
4 65 °F 1972
4 65 °F 1931
7 66 °F 1977
7 66 °F 1947
7 66 °F 1943
10 67 °F 2001
10 67 °F 1957
10 67 °F 1963
10 67 °F 2004
What's the most it has ever rained in San Luis Obispo on 10/20?
For the date of Oct 20, the most precipitation ever recorded in San Luis Obispo history is 0.83 inches which happened in 1979.
All-Time Most Precipitation in San Luis Obispo on October 20
Rank Precipitation Year
1 0.83 inches 1979
2 0.43 inches 1894
3 0.20 inches 1895
4 0.12 inches 1943
5 0.07 inches 2017
5 0.07 inches 2004
7 0.06 inches 1957
8 0.01 inches 2000
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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