San Luis Obispo October Precipitation Totals

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

Rainiest October in San Luis Obispo History

The rainiest October in San Luis Obispo, California history happened in 2004, with 4.57 inches of total precipitation.

Driest October in San Luis Obispo History

There have been 22 times where no rain was recorded in San Luis Obispo, California for the entire month of October. The most recent time this happened was 2023.

San Luis Obispo Average October Precipitation by Year

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Year	Precipitation (inches)
2023	0.00
2022	0.00
2021	1.70
2020	0.00
2019	0.00
2018	0.50
2017	0.07
2016	1.83
2015	0.03
2014	1.01
2013	0.15
2012	0.73
2011	1.38
2010	1.80
2009	3.90
2008	0.22
2007	0.68
2006	0.07
2005	0.41
2004	4.57
2003	0.36
2002	0.01
2001	0.24
2000	1.83
1999	0.07
1998	0.37
1996	2.23
1995	0.02
1994	0.89
1993	0.22
1992	1.29
1991	0.44
1988	0.00
1986	0.00
1985	1.05
1984	1.27
1983	2.47
1982	1.74
1981	1.59
1980	0.00
1979	1.28
1978	0.00
1977	0.05
1976	0.50
1975	2.23
1974	1.96
1973	2.18
1972	2.72
1971	0.36
1970	0.11
1969	0.62
1968	3.08
1967	0.00
1966	0.00
1965	0.00
1964	1.43
1963	1.94
1962	1.52
1961	0.00
1960	0.22
1959	0.00
1958	0.00
1957	1.68
1956	0.65
1955	0.00
1954	0.00
1953	0.00
1952	0.00
1951	0.93
1950	2.12
1949	0.00
1948	0.39
1947	1.40
1946	0.55
1945	1.14
1944	0.14
1943	1.15
1942	0.54
1941	1.14
1936	1.69
1935	0.74
1934	2.28
1933	0.95
1931	0.09
1930	0.04
1929	0.00
1928	0.00
1927	2.54
1909	0.40
1908	0.60
1907	3.49
1906	0.00
1895	1.67
1894	1.37
1893	0.82

Notes

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