Sioux Falls August 18 Weather Records

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

August 18 All-Time Records
1932–2024

101 °F

44 °F

67 °F

Highest daily low

77 °F

1.24 inches

Most snow

none

August 18 Average Weather
1991–2020 ¹

Average high

81.5 °F

Average low

60.1 °F

Chance precipitation

29.7%

Chance snow

Year	High (°F)	Low (°F)	Precip. (inches)
2023	84	57	0.00
2022	89	66	0.00
2021	89	71	0.00
2020	86	54	0.00
2019	74	59	0.00
2018	82	61	0.00
2017	81	60	0.07
2016	92	67	0.00
2015	68	52	0.99
2014	88	63	0.00
2013	80	61	0.00
2012	72	53	0.79
2011	80	63	0.11
2010	81	63	0.00
2009	79	51	0.00
2008	86	65	0.00
2007	86	61	0.66
2006	80	64	0.19
2005	84	62	0.40
2004	79	47	0.00
2003	92	73	0.00
2002	73	44	0.00
2001	75	54	0.00
2000	75	49	0.00
1999	80	56	0.00
1998	85	72	0.00
1997	69	48	0.00
1996	76	61	0.00
1995	96	69	0.11
1994	86	63	0.00
1993	80	67	0.48
1992	77	53	0.00
1991	80	58	0.00
1990	91	64	0.04
1989	83	61	0.00
1988	83	61	0.00
1987	77	51	0.00
1986	81	57	0.05
1985	72	48	0.00
1984	84	63	0.00
1983	101	69	0.00
1982	84	69	0.00
1981	75	48	0.00
1980	86	60	0.02
1979	84	61	0.22
1978	70	56	0.01
1977	70	53	0.04
1976	98	75	0.00
1975	74	56	0.00
1974	90	54	0.00
1973	94	74	0.09
1972	95	69	0.00
1971	97	68	0.28
1970	93	69	0.00
1969	78	59	0.01
1968	85	59	0.36
1967	72	49	0.22
1966	76	49	0.00
1965	83	53	0.00
1964	89	56	0.00
1963	68	48	0.01
1962	84	56	0.00
1961	78	61	0.70
1960	77	61	0.18
1959	94	73	0.00
1958	96	61	0.04
1957	79	56	0.00
1956	67	51	0.00
1955	94	71	0.00
1954	79	59	0.11
1953	84	55	0.00
1952	78	53	0.00
1951	81	55	0.02
1950	79	45	0.00
1949	79	64	0.65
1948	91	59	0.00
1947	91	67	1.24
1946	79	50	0.00
1945	89	67	0.00
1944	76	51	0.00
1943	78	51	0.00
1942	87	58	0.00
1941	76	54	0.00
1940	70	53	0.00
1939	87	61	0.00
1938	85	59	0.00
1937	79	68	1.02
1936	97	77	0.00
1935	92	67	0.00
1934	95	68	0.00
1933	76	56	0.00
1932	74	49	0.00

What's the all-time high for Sioux Falls on 8/18?

For the date of Aug 18, the highest temperature ever reached in Sioux Falls history is 101 °F which happened in 1983.

Highest Temperatures in Sioux Falls on August 18

What's the all-time low for Sioux Falls on 8/18?

For the date of Aug 18, the lowest temperature ever reached in Sioux Falls history is 44 °F which happened in 2002.

Lowest Temperatures in Sioux Falls on August 18

Lowest High Temperatures in Sioux Falls on August 18

What's the most it has ever rained in Sioux Falls on 8/18?

For the date of Aug 18, the most precipitation ever recorded in Sioux Falls history is 1.24 inches which happened in 1947.

All-Time Most Precipitation in Sioux Falls on August 18

Weather Station Details

Years	Station	Coordinates
1932–2024	Sioux Falls	location