San Luis Obispo Days With Precipitation by Year

This page contains a list of the number of days it rained or snowed each year in San Luis Obispo, California for each year between 1893 and 2024. It is based on NOAA data.

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Year With the Most Rainy Days in San Luis Obispo

The most days of rain or snow in a single year in San Luis Obispo, California history is 91, which happened in 2005.

Years marked with a gold background have more than 5% incomplete data
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Year	Rank	Days
2024	87	36
2023	30	54
2022	105	26
2021	100	31
2020	98	32
2019	10	67
2018	77	40
2017	45	49
2016	62	44
2015	94	33
2014	100	31
2013	108	24
2012	48	48
2011	20	59
2010	3	87
2009	45	49
2008	56	46
2007	20	59
2006	4	83
2005	1	91
2004	25	57
2003	8	78
2002	72	41
2001	62	44
2000	7	79
1999	14	63
1998	6	81
1997	69	42
1996	14	63
1995	11	66
1994	40	50
1993	28	55
1992	23	58
1991	54	47
1990	107	25
1989	102	29
1988	79	39
1987	54	47
1986	72	41
1985	81	37
1984	80	38
1983	2	88
1982	9	68
1981	58	45
1980	48	48
1979	48	48
1978	12	65
1977	88	35
1976	88	35
1975	58	45
1974	72	41
1973	40	50
1972	94	33
1971	81	37
1970	40	50
1969	20	59
1968	77	40
1967	19	60
1966	91	34
1965	58	45
1964	30	54
1963	36	53
1962	65	43
1961	94	33
1960	58	45
1959	104	27
1958	30	54
1957	25	57
1956	81	37
1955	36	53
1954	72	41
1953	103	28
1952	13	64
1951	30	54
1950	48	48
1949	48	48
1948	45	49
1947	91	34
1946	65	43
1945	48	48
1944	28	55
1943	36	53
1942	30	54
1941	4	83
1940	17	61
1939	69	42
1938	16	62
1937	25	57
1936	23	58
1935	17	61
1934	72	41
1933	65	43
1932	40	50
1931	30	54
1930	39	51
1929	81	37
1928	81	37
1927	109	21
1926	115	0
1925	115	0
1924	115	0
1923	115	0
1922	115	0
1921	115	0
1920	115	0
1919	115	0
1918	115	0
1917	111	15
1916	62	44
1915	56	46
1914	81	37
1913	91	34
1912	111	15
1911	94	33
1910	110	20
1909	65	43
1908	98	32
1907	105	26
1906	113	10
1905	115	0
1904	115	0
1903	115	0
1902	115	0
1901	115	0
1900	115	0
1899	115	0
1898	115	0
1897	115	0
1896	113	10
1895	69	42
1894	40	50
1893	88	35

Weather Station Details

Years	Station	Coordinates
1999–2024	San Luis Obispo Airport	location
1893–1998	San Luis Obispo Poly	location