Sonora September Precipitation Totals

A time series of total precipitation in the month of September in Sonora, California from 1909–2023.

Rainiest September in Sonora History

The rainiest September in Sonora, California history happened in 1959, with 4.60 inches of total precipitation.

Driest September in Sonora History

There have been 38 times where no rain was recorded in Sonora, California for the entire month of September. The most recent time this happened was 2021.

Sonora Average September Precipitation by Year

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Year	Precipitation (inches)
2023	1.21
2021	0.00
2020	0.00
2019	0.38
2018	0.00
2017	0.15
2016	0.00
2015	0.00
2014	0.67
2013	0.64
2012	0.04
2011	0.00
2010	0.00
2009	0.16
2008	0.00
2007	0.21
2006	0.00
2005	1.12
2004	0.31
2003	0.00
2002	0.04
2001	0.29
2000	0.60
1999	0.02
1997	0.17
1994	0.48
1993	0.00
1992	0.00
1991	0.00
1990	0.03
1989	2.50
1988	0.00
1987	0.00
1986	1.63
1985	2.60
1984	0.00
1983	0.86
1982	2.31
1981	0.06
1979	0.05
1978	3.50
1977	0.18
1976	1.03
1975	0.00
1974	0.00
1973	0.08
1972	0.03
1971	0.31
1970	0.01
1969	0.26
1967	0.23
1966	0.21
1965	0.11
1964	0.32
1963	0.30
1962	0.01
1961	1.28
1960	0.31
1959	4.60
1957	0.29
1956	0.65
1955	0.00
1954	0.00
1953	0.00
1952	0.17
1951	0.00
1950	0.48
1949	0.00
1948	0.00
1947	0.00
1946	0.06
1945	0.67
1944	0.10
1943	0.00
1942	0.00
1941	0.07
1940	0.00
1939	1.45
1938	0.41
1937	0.00
1936	0.17
1935	0.00
1934	0.84
1933	0.07
1932	0.00
1931	0.03
1930	0.58
1929	0.05
1928	0.00
1927	0.00
1926	0.00
1925	0.02
1924	0.00
1922	0.00
1918	0.80
1916	0.25
1914	0.05
1913	0.00
1912	1.27
1911	0.07
1910	1.05
1909	0.00

Notes

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