San Jose September 12 Weather Records

Daily averages and all-time records for weather in San Jose, California for the date of September 12.
September 12 All-Time Records
1893–2024
Highest temperature 101 °F 1979
Lowest temperature 43 °F 1894
Lowest daily high 67 °F 1910
Highest daily low 67 °F 2017
Most precipitation 4.32 inches 1918
September 12 Average Weather
1991–2020 1
Average high 81.3 °F
Average low 57.7 °F
Chance precipitation 2.5%
San Jose September 12 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 82 60 0.00 n/a
2022 81 64 0.00 n/a
2021 88 57 0.00 n/a
2020 83 58 0.00 n/a
2019 92 58 0.00 n/a
2018 76 54 0.00 n/a
2017 92 67 0.00 n/a
2016 76 57 0.00 n/a
2015 78 60 0.00 n/a
2014 85 59 0.00 n/a
2013 76 62 0.00 n/a
2012 76 53 0.00 n/a
2011 77 62 0.00 n/a
2010 75 55 0.00 n/a
2009 73 60 0.00 n/a
2008 74 57 0.00 n/a
2007 73 61 0.00 n/a
2006 94 61 0.00 n/a
2005 69 50 0.00 n/a
2004 77 62 0.00 n/a
2003 98 63 0.00 n/a
2002 75 57 0.00 n/a
2001 72 56 0.00 n/a
2000 86 57 0.00 n/a
1999 75 54 0.00 n/a
1998 89 63 0.00 0.0
1997 83 60 0.00 0.0
1996 80 53 0.00 0.0
1995 80 60 0.00 0.0
1994 77 54 0.00 0.0
1993 81 54 0.00 0.0
1992 80 58 0.00 0.0
1991 79 57 0.00 0.0
1990 85 55 0.00 0.0
1989 83 57 0.00 0.0
1988 80 54 0.00 0.0
1987 72 57 0.00 0.0
1986 76 55 0.00 0.0
1985 77 51 0.00 0.0
1984 83 54 0.00 0.0
1983 99 63 0.00 0.0
1982 89 55 0.00 0.0
1981 77 57 0.00 0.0
1980 75 58 0.00 0.0
1979 101 65 0.00 0.0
1978 84 54 0.00 0.0
1977 76 56 0.00 0.0
1976 74 57 0.00 0.0
1975 72 56 0.00 0.0
1974 92 55 0.00 0.0
1973 73 56 0.00 0.0
1972 75 53 0.00 0.0
1971 95 57 0.00 0.0
1970 85 50 0.00 0.0
1969 77 58 0.00 0.0
1968 77 57 0.00 0.0
1967 93 55 0.00 0.0
1966 75 47 0.00 0.0
1965 77 51 0.00 0.0
1964 68 53 0.00 0.0
1963 77 61 0.25 0.0
1962 75 55 0.00 0.0
1961 n/a n/a n/a n/a
1960 81 56 0.00 0.0
1959 79 58 0.00 0.0
1958 76 54 0.00 0.0
1957 76 54 0.00 0.0
1956 73 52 0.00 0.0
1955 85 55 0.00 0.0
1954 78 50 0.00 0.0
1953 95 66 0.00 0.0
1952 77 52 0.00 0.0
1951 78 54 0.00 0.0
1950 68 57 0.00 0.0
1949 75 52 0.00 0.0
1948 92 53 0.00 0.0
1947 87 54 0.00 0.0
1946 85 45 0.00 0.0
1945 89 59 0.00 0.0
1944 79 54 0.00 0.0
1943 86 52 0.00 n/a
1942 84 51 0.00 0.0
1941 72 48 0.00 n/a
1940 77 62 0.00 n/a
1939 71 53 0.00 n/a
1938 83 55 0.00 n/a
1937 88 53 0.00 n/a
1936 69 52 0.00 0.0
1935 76 51 0.00 n/a
1934 75 49 0.00 n/a
1933 75 54 0.00 0.0
1932 80 54 0.00 0.0
1931 88 49 0.00 0.0
1930 75 52 0.00 n/a
1929 89 51 0.00 n/a
1928 73 50 0.00 n/a
1927 72 49 0.00 n/a
1926 73 47 0.00 n/a
1925 72 52 0.00 n/a
1924 80 53 0.00 n/a
1923 80 49 0.00 n/a
1922 85 57 0.00 n/a
1921 76 47 0.00 n/a
1920 75 53 0.00 n/a
1919 82 46 0.00 n/a
1918 68 63 4.32 n/a
1917 77 52 0.00 n/a
1916 89 49 0.00 n/a
1915 71 46 0.00 n/a
1914 78 49 0.00 n/a
1913 76 52 0.00 n/a
1912 93 53 0.00 n/a
1911 73 48 0.00 n/a
1910 67 44 0.00 n/a
1909 91 49 0.00 n/a
1908 79 53 0.00 n/a
1907 73 48 0.00 n/a
1906 78 44 0.00 n/a
1905 78 53 0.00 n/a
1904 78 56 0.00 n/a
1903 75 54 0.00 n/a
1902 n/a n/a 0.00 n/a
1901 77 54 0.00 n/a
1900 70 64 0.16 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 46 0.00 n/a
1895 81 54 0.01 n/a
1894 73 43 0.00 n/a
1893 70 44 0.00 n/a
What's the all-time high for San Jose on 9/12?
For the date of Sep 12, the highest temperature ever reached in San Jose history is 101 °F which happened in 1979.
Highest Temperatures in San Jose on September 12
Rank Temperature Year
1 101 °F 1979
2 99 °F 1983
3 98 °F 2003
4 95 °F 1953
4 95 °F 1971
6 94 °F 2006
7 93 °F 1967
7 93 °F 1912
9 92 °F 2017
9 92 °F 1948
9 92 °F 2019
9 92 °F 1974
What's the all-time low for San Jose on 9/12?
For the date of Sep 12, the lowest temperature ever reached in San Jose history is 43 °F which happened in 1894.
Lowest Temperatures in San Jose on September 12
Rank Temperature Year
1 43 °F 1894
2 44 °F 1910
2 44 °F 1906
2 44 °F 1893
5 45 °F 1946
6 46 °F 1915
6 46 °F 1919
6 46 °F 1896
9 47 °F 1921
9 47 °F 1926
9 47 °F 1966
Lowest High Temperatures in San Jose on September 12
Rank Temperature Year
1 67 °F 1910
2 68 °F 1964
2 68 °F 1918
2 68 °F 1950
5 69 °F 1936
5 69 °F 2005
7 70 °F 1893
7 70 °F 1900
9 71 °F 1915
9 71 °F 1939
What's the most it has ever rained in San Jose on 9/12?
For the date of Sep 12, the most precipitation ever recorded in San Jose history is 4.32 inches which happened in 1918.
All-Time Most Precipitation in San Jose on September 12
Rank Precipitation Year
1 4.32 inches 1918
2 0.25 inches 1963
3 0.16 inches 1900
4 0.01 inches 1895
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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