San Luis Obispo July 31 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of July 31.
July 31 All-Time Records
1893–2024
Highest temperature 96 °F 1938
Lowest temperature 49 °F 1999
Lowest daily high 68 °F 1933
Highest daily low 61 °F 2015
Most precipitation 0.01 inches 1980
July 31 Average Weather
1991–2020 1
Average high 79.2 °F
Average low 54.9 °F
Chance precipitation 0.9%
San Luis Obispo July 31 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 83 54 0.00 n/a
2022 81 60 0.00 n/a
2021 81 57 0.00 n/a
2020 76 55 0.00 0.0
2019 73 51 0.00 n/a
2018 87 53 0.00 0.0
2017 79 56 0.00 0.0
2016 84 59 0.00 0.0
2015 83 61 0.00 0.0
2014 80 59 0.00 0.0
2013 72 55 0.00 0.0
2012 82 52 0.00 n/a
2011 76 56 0.00 n/a
2010 74 55 0.00 n/a
2009 80 58 0.00 n/a
2008 79 56 0.00 n/a
2007 79 54 0.00 n/a
2006 75 56 0.00 n/a
2005 78 55 0.00 n/a
2004 74 54 0.00 n/a
2003 82 59 0.00 n/a
2002 76 56 0.00 n/a
2001 74 57 0.00 n/a
2000 78 55 0.00 n/a
1999 70 49 0.00 n/a
1998 73 n/a 0.00 0.0
1997 77 58 0.00 0.0
1996 82 54 0.00 0.0
1995 93 53 0.00 0.0
1994 77 52 0.00 0.0
1993 74 55 0.00 0.0
1992 74 49 0.00 0.0
1991 83 55 0.00 0.0
1990 77 54 0.00 0.0
1989 81 50 0.00 0.0
1988 81 56 0.00 0.0
1987 n/a n/a 0.00 0.0
1986 77 49 0.00 0.0
1985 n/a n/a n/a 0.0
1984 n/a n/a 0.00 0.0
1983 80 56 0.00 0.0
1982 83 52 0.00 0.0
1981 74 55 0.00 0.0
1980 79 59 0.01 0.0
1979 85 52 0.00 0.0
1978 73 50 0.00 0.0
1977 89 61 0.00 0.0
1976 75 59 0.00 0.0
1975 73 49 0.00 0.0
1974 73 53 0.00 0.0
1973 76 54 0.00 0.0
1972 74 53 0.00 0.0
1971 87 51 0.00 0.0
1970 77 51 0.00 0.0
1969 80 51 0.00 0.0
1968 78 54 0.00 0.0
1967 79 54 0.00 0.0
1966 80 56 0.00 0.0
1965 85 54 0.00 0.0
1964 71 54 0.00 0.0
1963 75 49 0.00 0.0
1962 74 53 0.00 0.0
1961 75 55 0.00 0.0
1960 78 53 0.00 0.0
1959 80 54 0.00 0.0
1958 79 56 0.00 0.0
1957 83 50 0.00 0.0
1956 73 51 0.00 0.0
1955 73 50 0.00 0.0
1954 84 52 0.00 0.0
1953 75 52 0.00 0.0
1952 75 53 0.00 0.0
1951 76 52 n/a 0.0
1950 71 56 0.00 0.0
1949 75 58 0.00 0.0
1948 77 52 0.00 0.0
1947 86 53 0.00 0.0
1946 92 55 0.00 0.0
1945 77 55 0.00 0.0
1944 73 52 0.00 0.0
1943 79 50 0.00 n/a
1942 71 53 0.00 n/a
1941 72 54 0.00 n/a
1940 74 51 0.00 n/a
1939 73 54 0.00 n/a
1938 96 59 0.00 n/a
1937 74 53 0.00 n/a
1936 74 53 0.00 n/a
1935 74 50 0.00 n/a
1934 80 55 0.00 n/a
1933 68 53 0.00 n/a
1932 78 49 0.00 n/a
1931 78 54 0.00 n/a
1930 89 57 0.00 n/a
1929 75 56 0.00 n/a
1928 72 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 7/31?
For the date of Jul 31, the highest temperature ever reached in San Luis Obispo history is 96 °F which happened in 1938.
Highest Temperatures in San Luis Obispo on July 31
Rank Temperature Year
1 96 °F 1938
2 93 °F 1995
3 92 °F 1946
4 89 °F 1977
4 89 °F 1930
6 87 °F 2018
6 87 °F 1971
8 86 °F 1947
9 85 °F 1965
9 85 °F 1979
What's the all-time low for San Luis Obispo on 7/31?
For the date of Jul 31, the lowest temperature ever reached in San Luis Obispo history is 49 °F which has happened 6 times, most recently in 1999.
Lowest Temperatures in San Luis Obispo on July 31
Rank Temperature Year
1 49 °F 1963
1 49 °F 1992
1 49 °F 1986
1 49 °F 1999
1 49 °F 1975
1 49 °F 1932
7 50 °F 1955
7 50 °F 1978
7 50 °F 1943
7 50 °F 1935
7 50 °F 1957
7 50 °F 1989
Lowest High Temperatures in San Luis Obispo on July 31
Rank Temperature Year
1 68 °F 1933
2 70 °F 1999
3 71 °F 1950
3 71 °F 1964
3 71 °F 1942
6 72 °F 1941
6 72 °F 1928
6 72 °F 2013
9 73 °F 2019
9 73 °F 1944
9 73 °F 1956
9 73 °F 1974
9 73 °F 1939
9 73 °F 1978
9 73 °F 1955
9 73 °F 1975
9 73 °F 1998
What's the most it has ever rained in San Luis Obispo on 7/31?
For the date of Jul 31, the most precipitation ever recorded in San Luis Obispo history is 0.01 inches which happened in 1980.
All-Time Most Precipitation in San Luis Obispo on July 31
Rank Precipitation Year
1 0.01 inches 1980
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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