St. Helena October Precipitation Totals

A time series of total precipitation in the month of October in St. Helena, California from 1908–2022.

Rainiest October in St. Helena History

The rainiest October in St. Helena, California history happened in 1962, with 11.77 inches of total precipitation.

Driest October in St. Helena History

There have been 10 times where no rain was recorded in St. Helena, California for the entire month of October. The most recent time this happened was 2022.

St. Helena Average October Precipitation by Year

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Year	Precipitation (inches)
2022	0.00
2021	10.95
2020	0.00
2019	0.00
2018	0.85
2017	0.01
2016	5.89
2015	0.11
2014	1.05
2013	0.00
2010	3.55
2009	4.90
2008	0.92
2007	2.15
2006	0.20
2005	1.17
2004	4.53
2003	0.06
2002	0.00
2001	0.80
2000	4.81
1999	2.08
1997	1.38
1996	1.06
1995	0.00
1994	1.05
1991	4.05
1990	0.60
1989	3.36
1988	0.08
1986	0.12
1985	1.20
1984	2.04
1983	1.38
1982	4.55
1981	3.89
1978	0.00
1977	0.46
1976	0.26
1975	4.20
1974	1.42
1973	2.62
1972	3.48
1971	0.37
1970	1.99
1969	2.80
1968	2.92
1967	0.92
1966	0.00
1965	0.05
1964	2.18
1963	1.84
1962	11.77
1961	0.14
1958	0.08
1957	5.53
1956	3.30
1955	0.27
1954	0.44
1953	1.13
1952	0.02
1951	2.93
1950	4.71
1949	0.00
1948	0.87
1947	5.96
1946	0.22
1945	5.32
1944	2.27
1943	0.72
1942	1.00
1941	1.58
1940	1.77
1939	0.21
1938	1.55
1937	0.90
1936	0.37
1935	1.32
1934	2.17
1933	2.72
1932	0.06
1931	2.26
1930	0.60
1929	0.00
1928	0.12
1927	1.60
1926	1.54
1925	0.45
1924	4.78
1923	0.40
1922	2.45
1921	0.50
1920	3.60
1919	0.46
1916	0.82
1915	0.26
1914	1.80
1913	0.75
1912	0.78
1911	0.47
1910	0.82
1909	1.62
1908	1.22

Notes

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