Petaluma October Precipitation Totals

A time series of total precipitation in the month of October in Petaluma, California from 1893–2023.

Rainiest October in Petaluma History

The rainiest October in Petaluma, California history happened in 2021, with 7.96 inches of total precipitation.

Driest October in Petaluma History

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

Petaluma Average October Precipitation by Year

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Year	Precipitation (inches)
2023	0.05
2022	0.00
2021	7.96
2020	0.00
2019	0.02
2018	1.34
2017	0.00
2016	5.56
2015	0.06
2014	0.59
2013	0.00
2012	1.30
2011	2.06
2010	2.46
2009	3.16
2008	0.54
2007	1.82
2006	0.67
2005	0.62
2004	4.67
2003	0.27
2002	0.00
2001	0.59
2000	2.00
1999	0.74
1998	0.85
1997	0.94
1996	1.01
1995	0.00
1994	1.20
1993	1.63
1989	1.69
1988	0.09
1987	1.42
1986	0.24
1985	0.98
1984	2.25
1983	0.61
1982	2.91
1981	2.19
1980	0.34
1979	3.40
1978	0.00
1977	0.41
1976	0.60
1975	4.64
1974	0.91
1973	1.25
1972	4.46
1971	0.21
1970	0.96
1969	1.65
1968	1.84
1967	0.82
1966	0.00
1965	0.20
1964	2.42
1963	1.52
1962	7.29
1961	0.07
1960	0.40
1959	0.04
1958	0.09
1957	4.87
1956	1.41
1955	0.18
1954	0.22
1953	0.28
1952	0.15
1951	1.36
1950	2.78
1949	0.12
1948	0.51
1947	3.37
1946	0.23
1945	2.84
1944	1.59
1943	0.43
1942	0.99
1941	1.48
1940	1.30
1939	0.19
1938	1.02
1937	1.19
1936	0.35
1935	0.69
1934	1.50
1932	0.00
1931	1.00
1930	0.97
1928	0.07
1927	1.84
1926	1.94
1925	0.55
1924	3.57
1923	0.22
1922	2.28
1921	0.85
1920	2.59
1919	0.37
1918	0.63
1916	0.46
1915	0.06
1914	1.07
1913	0.00
1895	0.15
1894	1.72
1893	0.19

Notes

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