San Jose September Precipitation Totals

A time series of total precipitation in the month of September in San Jose, California from 1893–2023.

Rainiest September in San Jose History

The rainiest September in San Jose, California history happened in 1918, with 6.33 inches of total precipitation.

Driest September in San Jose History

There have been 55 times where no rain was recorded in San Jose, California for the entire month of September. The most recent time this happened was 2021.

San Jose Average September Precipitation by Year

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Year	Precipitation (inches)
2023	0.08
2022	0.51
2021	0.00
2020	0.00
2019	0.13
2018	0.00
2017	0.04
2016	0.00
2015	0.01
2014	0.36
2013	0.66
2012	0.01
2011	0.00
2010	0.00
2009	0.21
2008	0.00
2007	0.00
2006	0.00
2005	0.02
2004	0.06
2003	0.02
2002	0.00
2001	0.18
2000	0.10
1999	0.05
1998	0.05
1997	0.00
1996	0.01
1995	0.00
1994	0.07
1993	0.00
1992	0.00
1991	0.12
1990	0.24
1989	0.83
1988	0.00
1987	0.00
1986	1.02
1985	0.35
1984	0.02
1983	0.49
1982	1.04
1981	0.02
1980	0.00
1979	0.00
1978	0.02
1977	0.58
1976	1.03
1975	0.01
1974	0.00
1973	0.04
1972	0.60
1971	0.12
1970	0.00
1969	0.14
1968	0.00
1967	0.02
1966	0.19
1965	0.00
1964	0.00
1963	0.25
1962	0.00
1960	0.00
1959	2.04
1958	0.04
1957	0.27
1956	0.45
1955	0.00
1954	0.00
1953	0.00
1952	0.00
1951	0.22
1950	0.11
1949	0.00
1948	0.00
1947	0.00
1946	0.04
1945	0.00
1944	0.00
1943	0.00
1942	0.07
1941	0.00
1940	0.18
1939	0.28
1938	0.18
1937	0.00
1936	0.00
1935	0.00
1934	0.23
1933	0.01
1932	0.00
1931	0.00
1930	0.05
1929	0.00
1928	0.00
1927	0.02
1926	0.00
1925	0.01
1924	0.00
1923	0.62
1922	0.00
1921	0.21
1920	0.02
1919	0.25
1918	6.33
1917	0.01
1916	0.78
1915	0.00
1914	0.00
1913	0.00
1912	0.71
1911	0.00
1910	0.09
1909	0.75
1908	0.09
1907	0.06
1906	0.13
1905	0.00
1904	1.94
1903	0.00
1902	0.00
1901	0.44
1900	0.17
1899	0.00
1896	0.32
1895	0.05
1894	1.35
1893	0.00

Notes

Its possible for precipitation totals to include both rain and melted snowfall
Months with more than 10% missing data are excluded