California September Precipitation by Year

This page is a list of the average statewide precipitation in the month of September in California for each year from 1895–2023. It is a statewide average over the entire territory of the state, based on data from the NOAA.

State:

Month:

What Was the Rainiest September in California History?

1918 was the wettest September in California history with an average monthly statewide precipitation of 1.55 inches.

What Was the Driest September in California History?

1974 was the driest September in California history with an average monthly statewide precipitation of 0.01 inches.

Click column headers to sort

Year	Rank	Precipitation (in)
2023	31	0.61
2022	21	0.80
2021	53	0.36
2020	124	0.04
2019	32	0.61
2018	120	0.06
2017	47	0.43
2016	109	0.10
2015	58	0.33
2014	25	0.72
2013	22	0.77
2012	110	0.10
2011	66	0.28
2010	92	0.16
2009	114	0.09
2008	125	0.04
2007	41	0.50
2006	121	0.06
2005	61	0.32
2004	98	0.14
2003	90	0.17
2002	103	0.11
2001	63	0.30
2000	54	0.35
1999	88	0.18
1998	24	0.74
1997	15	0.94
1996	68	0.27
1995	118	0.07
1994	56	0.34
1993	126	0.04
1992	122	0.05
1991	78	0.24
1990	49	0.41
1989	4	1.33
1988	104	0.11
1987	111	0.10
1986	3	1.40
1985	12	1.08
1984	69	0.27
1983	17	0.91
1982	7	1.26
1981	35	0.58
1980	82	0.22
1979	79	0.24
1978	5	1.31
1977	20	0.87
1976	6	1.31
1975	57	0.34
1974	129	0.01
1973	39	0.53
1972	23	0.75
1971	37	0.56
1970	127	0.04
1969	73	0.26
1968	119	0.07
1967	34	0.59
1966	62	0.32
1965	93	0.16
1964	99	0.14
1963	19	0.89
1962	64	0.30
1961	70	0.27
1960	74	0.26
1959	9	1.23
1958	36	0.57
1957	18	0.90
1956	76	0.25
1955	55	0.35
1954	83	0.22
1953	128	0.04
1952	45	0.45
1951	96	0.15
1950	40	0.51
1949	105	0.11
1948	50	0.40
1947	106	0.11
1946	80	0.24
1945	91	0.17
1944	112	0.10
1943	94	0.16
1942	117	0.08
1941	84	0.20
1940	28	0.64
1939	10	1.11
1938	44	0.46
1937	115	0.09
1936	89	0.18
1935	77	0.25
1934	59	0.33
1933	100	0.14
1932	85	0.19
1931	75	0.26
1930	29	0.63
1929	67	0.28
1928	113	0.10
1927	86	0.19
1926	107	0.11
1925	27	0.70
1924	101	0.14
1923	8	1.25
1922	108	0.11
1921	48	0.43
1920	52	0.37
1919	14	1.01
1918	1	1.55
1917	87	0.19
1916	42	0.50
1915	116	0.09
1914	60	0.33
1913	97	0.15
1912	13	1.04
1911	46	0.44
1910	33	0.61
1909	38	0.56
1908	26	0.72
1907	95	0.16
1906	71	0.27
1905	65	0.29
1904	2	1.41
1903	81	0.24
1902	123	0.05
1901	11	1.09
1900	72	0.27
1899	102	0.13
1898	30	0.63
1897	51	0.39
1896	43	0.47
1895	16	0.92