South Dakota September Precipitation by Year

This page is a list of the average statewide precipitation in the month of September in South Dakota 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 South Dakota History?

1996 was the wettest September in South Dakota history with an average monthly statewide precipitation of 4.29 inches.

What Was the Driest September in South Dakota History?

2012 was the driest September in South Dakota history with an average monthly statewide precipitation of 0.20 inches.

Click column headers to sort

Year	Rank	Precipitation (in)
2023	28	2.26
2022	120	0.57
2021	36	2.03
2020	110	0.74
2019	4	3.90
2018	22	2.55
2017	24	2.49
2016	38	1.97
2015	74	1.33
2014	60	1.61
2013	41	1.91
2012	129	0.20
2011	116	0.63
2010	9	3.26
2009	78	1.30
2008	32	2.11
2007	67	1.49
2006	7	3.40
2005	31	2.14
2004	5	3.88
2003	49	1.81
2002	63	1.59
2001	52	1.80
2000	117	0.61
1999	21	2.60
1998	112	0.71
1997	68	1.45
1996	1	4.29
1995	47	1.82
1994	79	1.30
1993	58	1.66
1992	69	1.43
1991	75	1.32
1990	102	0.91
1989	26	2.41
1988	33	2.11
1987	81	1.26
1986	2	4.19
1985	20	2.62
1984	92	1.02
1983	82	1.23
1982	44	1.87
1981	100	0.93
1980	118	0.60
1979	119	0.60
1978	101	0.92
1977	8	3.27
1976	90	1.04
1975	103	0.90
1974	125	0.44
1973	11	3.18
1972	121	0.48
1971	40	1.93
1970	61	1.61
1969	106	0.87
1968	45	1.87
1967	53	1.74
1966	42	1.89
1965	10	3.23
1964	99	0.95
1963	34	2.11
1962	71	1.40
1961	29	2.23
1960	76	1.31
1959	16	2.71
1958	122	0.47
1957	59	1.62
1956	113	0.69
1955	48	1.82
1954	64	1.55
1953	123	0.47
1952	128	0.33
1951	55	1.69
1950	18	2.68
1949	65	1.54
1948	98	0.97
1947	84	1.17
1946	3	4.01
1945	43	1.88
1944	105	0.88
1943	114	0.69
1942	37	2.02
1941	15	2.82
1940	115	0.69
1939	94	1.01
1938	30	2.20
1937	104	0.90
1936	109	0.76
1935	126	0.41
1934	50	1.81
1933	89	1.05
1932	93	1.02
1931	72	1.37
1930	83	1.18
1929	13	2.95
1928	66	1.50
1927	77	1.31
1926	35	2.09
1925	88	1.08
1924	62	1.60
1923	14	2.85
1922	127	0.41
1921	12	3.10
1920	73	1.37
1919	85	1.13
1918	96	1.00
1917	56	1.68
1916	95	1.01
1915	17	2.71
1914	39	1.97
1913	70	1.42
1912	54	1.73
1911	27	2.27
1910	51	1.81
1909	80	1.30
1908	86	1.10
1907	57	1.67
1906	23	2.55
1905	87	1.09
1904	97	0.99
1903	25	2.46
1902	111	0.74
1901	6	3.42
1900	19	2.66
1899	124	0.47
1898	107	0.79
1897	108	0.78
1896	46	1.85
1895	91	1.03