Sioux Falls September 18 Weather Records

Daily averages and all-time records for weather in Sioux Falls, South Dakota for the date of September 18.

September 18 All-Time Records
1932–2024

94 °F

30 °F

45 °F

Highest daily low

75 °F

2.07 inches

Most snow

none

September 18 Average Weather
1991–2020 ¹

Average high

73.6 °F

Average low

49.8 °F

Chance precipitation

27.0%

Chance snow

0.1%

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	87	59	0.00	0.0
2022	77	53	0.00	0.0
2021	85	49	0.00	0.0
2020	71	44	0.00	0.0
2019	79	61	0.00	0.0
2018	70	61	0.71	0.0
2017	75	58	0.02	0.0
2016	83	58	0.00	0.0
2015	59	47	0.06	0.0
2014	77	52	0.00	0.0
2013	88	66	0.00	0.0
2012	68	34	0.00	0.0
2011	74	49	0.00	0.0
2010	50	40	0.05	0.0
2009	84	53	0.00	0.0
2008	82	51	0.00	0.0
2007	77	52	0.20	0.0
2006	51	43	0.03	0.0
2005	82	52	0.02	0.0
2004	84	54	0.00	0.0
2003	57	38	0.68	0.0
2002	79	57	0.46	0.0
2001	64	54	0.00	0.0
2000	83	67	0.00	0.0
1999	82	52	0.00	0.0
1998	90	63	0.00	0.0
1997	85	60	0.00	0.0
1996	62	50	0.00	0.0
1995	62	55	0.60	0.0
1994	82	46	0.00	0.0
1993	61	49	0.00	0.0
1992	60	42	0.00	0.0
1991	45	30	0.00	0.0
1990	65	55	0.23	0.0
1989	84	63	0.00	0.0
1988	83	63	0.30	0.0
1987	65	45	0.00	0.0
1986	60	51	2.07	0.0
1985	83	65	0.00	0.0
1984	91	57	0.00	0.0
1983	69	45	0.00	0.0
1982	71	39	0.00	0.0
1981	79	38	0.00	0.0
1980	64	51	0.00	0.0
1979	70	48	0.00	0.0
1978	80	55	0.11	0.0
1977	68	53	0.03	0.0
1976	87	58	0.00	0.0
1975	64	48	0.00	0.0
1974	91	45	0.00	0.0
1973	69	36	0.00	0.0
1972	87	47	0.00	0.0
1971	62	34	0.00	0.0
1970	85	43	0.00	0.0
1969	61	53	0.14	0.0
1968	56	50	1.42	0.0
1967	77	61	0.09	0.0
1966	71	43	0.00	0.0
1965	50	45	0.26	0.0
1964	68	60	0.00	0.0
1963	90	61	0.00	0.0
1962	78	48	0.00	0.0
1961	83	58	0.00	0.0
1960	56	48	0.69	0.0
1959	51	45	0.38	0.0
1958	77	54	0.00	0.0
1957	82	55	0.48	0.0
1956	83	49	0.00	0.0
1955	86	68	0.00	0.0
1954	75	52	0.07	0.0
1953	70	48	0.00	0.0
1952	65	41	0.00	0.0
1951	81	43	0.00	0.0
1950	87	51	0.00	0.0
1949	73	44	0.00	0.0
1948	88	60	0.00	0.0
1947	94	75	0.00	0.0
1946	78	54	0.23	0.0
1945	73	55	0.18	0.0
1944	73	54	0.68	0.0
1943	79	51	0.00	0.0
1942	n/a	n/a	n/a	n/a
1941	87	61	0.00	0.0
1940	92	63	0.00	0.0
1939	80	56	0.00	0.0
1938	55	38	0.00	0.0
1937	74	56	0.00	0.0
1936	77	57	0.00	0.0
1935	84	56	0.00	0.0
1934	75	43	0.00	0.0
1933	87	55	0.00	0.0
1932	81	52	0.33	0.0

What's the all-time high for Sioux Falls on 9/18?

For the date of Sep 18, the highest temperature ever reached in Sioux Falls history is 94 °F which happened in 1947.

Highest Temperatures in Sioux Falls on September 18

What's the all-time low for Sioux Falls on 9/18?

For the date of Sep 18, the lowest temperature ever reached in Sioux Falls history is 30 °F which happened in 1991.

Lowest Temperatures in Sioux Falls on September 18

Lowest High Temperatures in Sioux Falls on September 18

What's the most it has ever rained in Sioux Falls on 9/18?

For the date of Sep 18, the most precipitation ever recorded in Sioux Falls history is 2.07 inches which happened in 1986.

All-Time Most Precipitation in Sioux Falls on September 18

Weather Station Details

Years	Station	Coordinates
1932–2024	Sioux Falls	location