San Jose August 21 Weather Records

Daily averages and all-time records for weather in San Jose, California for the date of August 21.
August 21 All-Time Records
1893–2024
Highest temperature 92 °F 1969
Lowest temperature 44 °F 1910
Lowest daily high 70 °F 1922
Highest daily low 69 °F 2023
Most precipitation 1.92 inches 1968
August 21 Average Weather
1991–2020 1
Average high 82.0 °F
Average low 58.9 °F
Chance precipitation 0.9%
San Jose August 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 76 69 0.00 n/a
2022 85 59 0.00 n/a
2021 77 60 0.00 n/a
2020 89 61 0.00 n/a
2019 85 58 0.00 n/a
2018 75 60 0.00 n/a
2017 82 64 0.00 n/a
2016 78 60 0.00 n/a
2015 79 60 0.00 n/a
2014 80 59 0.00 n/a
2013 77 57 0.00 0.0
2012 78 55 0.00 n/a
2011 75 59 0.00 n/a
2010 71 56 0.00 n/a
2009 91 59 0.00 n/a
2008 80 62 0.00 n/a
2007 89 61 0.00 n/a
2006 73 58 0.00 n/a
2005 73 56 0.00 n/a
2004 76 63 0.00 n/a
2003 78 62 0.00 n/a
2002 77 55 0.00 n/a
2001 73 54 0.00 n/a
2000 83 55 0.00 n/a
1999 85 56 0.00 n/a
1998 83 54 0.00 0.0
1997 84 60 0.00 0.0
1996 85 56 0.00 0.0
1995 n/a 62 0.00 0.0
1994 79 55 0.00 0.0
1993 88 58 0.00 0.0
1992 n/a n/a n/a n/a
1991 76 59 0.00 0.0
1990 79 64 0.00 0.0
1989 80 57 0.00 0.0
1988 78 56 0.00 0.0
1987 77 54 0.00 0.0
1986 77 58 0.00 0.0
1985 77 54 0.00 0.0
1984 80 54 0.00 0.0
1983 76 61 0.00 0.0
1982 88 56 0.00 0.0
1981 83 52 0.00 0.0
1980 78 58 0.00 0.0
1979 76 56 0.00 0.0
1978 77 55 0.00 0.0
1977 75 53 0.00 0.0
1976 81 60 0.00 0.0
1975 83 53 0.00 0.0
1974 90 54 0.00 0.0
1973 81 53 0.00 0.0
1972 86 58 0.00 0.0
1971 79 58 0.00 0.0
1970 76 55 0.00 0.0
1969 92 60 0.00 0.0
1968 78 53 1.92 0.0
1967 88 54 0.00 0.0
1966 79 55 0.00 0.0
1965 82 53 0.00 0.0
1964 79 56 0.00 0.0
1963 83 55 0.00 0.0
1962 82 59 0.00 0.0
1961 77 61 0.00 0.0
1960 77 53 0.00 0.0
1959 80 54 0.00 0.0
1958 83 59 0.00 0.0
1957 80 54 0.00 0.0
1956 78 59 0.00 0.0
1955 80 53 0.00 0.0
1954 82 52 0.00 0.0
1953 80 53 0.00 0.0
1952 82 52 0.00 0.0
1951 83 58 0.00 0.0
1950 79 56 0.00 0.0
1949 87 51 0.00 0.0
1948 78 55 0.00 0.0
1947 71 49 0.00 0.0
1946 78 56 0.00 0.0
1945 91 58 0.00 0.0
1944 75 53 0.00 0.0
1943 80 51 0.00 n/a
1942 85 58 0.00 0.0
1941 76 57 0.00 n/a
1940 74 53 0.00 n/a
1939 80 60 0.00 n/a
1938 74 56 0.00 n/a
1937 80 51 0.00 n/a
1936 72 58 0.00 n/a
1935 82 54 0.00 n/a
1934 79 58 0.00 n/a
1933 79 52 0.00 n/a
1932 84 51 0.00 0.0
1931 85 50 0.00 0.0
1930 87 50 0.00 n/a
1929 89 54 0.00 n/a
1928 82 50 0.00 n/a
1927 79 51 0.00 n/a
1926 75 54 0.00 n/a
1925 77 50 0.00 n/a
1924 77 53 0.00 n/a
1923 82 63 0.00 n/a
1922 70 51 0.00 n/a
1921 81 56 0.00 n/a
1920 76 53 0.00 n/a
1919 72 56 0.00 n/a
1918 89 50 0.00 n/a
1917 81 53 0.00 n/a
1916 83 55 0.00 n/a
1915 78 57 0.00 n/a
1914 82 54 0.00 n/a
1913 82 58 0.00 n/a
1912 77 50 0.00 n/a
1911 76 46 0.00 n/a
1910 83 44 0.00 n/a
1909 78 48 0.00 n/a
1908 70 53 0.00 n/a
1907 76 55 0.00 n/a
1906 74 54 0.00 n/a
1905 77 58 0.00 n/a
1904 88 50 0.00 n/a
1903 75 46 0.00 n/a
1902 81 46 0.00 n/a
1901 n/a n/a 0.00 n/a
1900 80 58 0.00 n/a
1899 n/a n/a 0.00 n/a
1898 n/a n/a n/a n/a
1897 n/a n/a n/a n/a
1896 75 54 0.00 n/a
1895 76 49 n/a n/a
1894 78 55 0.00 n/a
1893 72 45 0.00 n/a
What's the all-time high for San Jose on 8/21?
For the date of Aug 21, the highest temperature ever reached in San Jose history is 92 °F which happened in 1969.
Highest Temperatures in San Jose on August 21
Rank Temperature Year
1 92 °F 1969
2 91 °F 1945
2 91 °F 2009
4 90 °F 1974
5 89 °F 1918
5 89 °F 2007
5 89 °F 2020
5 89 °F 1929
9 88 °F 1982
9 88 °F 1993
9 88 °F 1904
9 88 °F 1967
What's the all-time low for San Jose on 8/21?
For the date of Aug 21, the lowest temperature ever reached in San Jose history is 44 °F which happened in 1910.
Lowest Temperatures in San Jose on August 21
Rank Temperature Year
1 44 °F 1910
2 45 °F 1893
3 46 °F 1902
3 46 °F 1911
3 46 °F 1903
6 48 °F 1909
7 49 °F 1895
7 49 °F 1947
9 50 °F 1931
9 50 °F 1928
9 50 °F 1930
9 50 °F 1918
9 50 °F 1904
9 50 °F 1912
9 50 °F 1925
Lowest High Temperatures in San Jose on August 21
Rank Temperature Year
1 70 °F 1922
1 70 °F 1908
3 71 °F 1947
3 71 °F 2010
5 72 °F 1919
5 72 °F 1893
5 72 °F 1936
8 73 °F 2006
8 73 °F 2005
8 73 °F 2001
What's the most it has ever rained in San Jose on 8/21?
For the date of Aug 21, the most precipitation ever recorded in San Jose history is 1.92 inches which happened in 1968.
All-Time Most Precipitation in San Jose on August 21
Rank Precipitation Year
1 1.92 inches 1968
Weather Station Details
Years Station Coordinates
1999–2024 San Jose 2 location
1893–1998 San Jose location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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