St. Helena July Precipitation Totals

A time series of total precipitation in the month of July in St. Helena, California from 1909–2022.

Rainiest July in St. Helena History

The rainiest July in St. Helena, California history happened in 1974, with 1.08 inches of total precipitation.

Driest July in St. Helena History

There have been 82 times where no rain was recorded in St. Helena, California for the entire month of July. The most recent time this happened was 2022.

St. Helena Average July Precipitation by Year

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Year	Precipitation (inches)
2022	0.00
2021	0.00
2020	0.00
2019	0.00
2018	0.00
2017	0.00
2016	0.00
2015	0.06
2014	0.00
2013	0.00
2011	0.00
2010	0.00
2009	0.00
2008	0.00
2007	0.12
2006	0.00
2005	0.00
2004	0.00
2003	0.00
2002	0.00
2001	0.00
2000	0.00
1999	0.00
1997	0.00
1996	0.00
1995	0.00
1994	0.00
1993	0.00
1992	0.00
1991	0.00
1990	0.00
1989	0.00
1986	0.00
1985	0.00
1984	0.00
1983	0.00
1982	0.00
1981	0.00
1978	0.00
1977	0.00
1976	0.00
1975	0.21
1974	1.08
1973	0.00
1972	0.00
1971	0.00
1970	0.00
1969	0.00
1968	0.00
1967	0.00
1966	0.05
1965	0.02
1964	0.04
1963	0.00
1962	0.00
1961	0.00
1960	0.00
1959	0.00
1958	0.49
1957	0.00
1953	0.00
1952	0.02
1951	0.00
1950	0.00
1949	0.02
1948	0.00
1947	0.00
1946	0.15
1945	0.00
1944	0.00
1943	0.00
1942	0.00
1941	0.00
1940	0.00
1939	0.00
1938	0.00
1937	0.16
1936	0.07
1935	0.00
1934	0.00
1933	0.00
1931	0.00
1930	0.00
1929	0.00
1928	0.00
1927	0.00
1926	0.00
1925	0.05
1924	0.00
1923	0.00
1914	0.00
1913	0.00
1912	0.00
1911	0.00
1910	0.00
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