Sioux Falls August 20 Weather Records

Daily averages and all-time records for weather in Sioux Falls, South Dakota for the date of August 20.

August 20 All-Time Records
1932–2024

99 °F

34 °F

68 °F

Highest daily low

75 °F

1.51 inches

Most snow

none

August 20 Average Weather
1991–2020 ¹

Average high

81.5 °F

Average low

59.9 °F

Chance precipitation

29.5%

Chance snow

Year	High (°F)	Low (°F)	Precip. (inches)
2023	83	63	0.00
2022	81	61	0.00
2021	83	66	0.23
2020	87	66	0.00
2019	89	67	0.01
2018	74	61	0.17
2017	84	62	0.00
2016	74	55	0.12
2015	79	48	0.00
2014	83	66	0.03
2013	90	66	0.00
2012	80	50	0.00
2011	74	58	0.01
2010	86	70	0.15
2009	73	56	0.08
2008	82	65	0.00
2007	81	68	0.47
2006	78	50	0.00
2005	84	56	0.00
2004	69	46	0.00
2003	90	66	1.18
2002	82	54	1.51
2001	82	62	0.00
2000	74	60	0.00
1999	82	56	0.02
1998	81	67	0.02
1997	77	52	0.00
1996	80	48	0.00
1995	85	62	0.00
1994	77	55	0.00
1993	76	59	0.00
1992	83	61	0.00
1991	85	58	0.27
1990	68	60	0.25
1989	79	56	0.03
1988	85	55	0.00
1987	82	56	0.00
1986	74	50	0.31
1985	71	51	0.02
1984	80	64	0.10
1983	94	65	0.00
1982	85	60	0.00
1981	82	60	0.00
1980	83	60	0.09
1979	82	67	0.15
1978	82	56	0.00
1977	80	53	0.36
1976	94	67	0.00
1975	90	71	0.00
1974	95	72	0.67
1973	86	57	0.00
1972	96	68	0.14
1971	89	59	0.00
1970	84	43	0.00
1969	81	62	1.30
1968	96	58	0.00
1967	91	50	0.00
1966	69	61	0.84
1965	70	60	0.01
1964	75	60	0.50
1963	89	48	0.00
1962	87	60	0.00
1961	78	56	0.09
1960	81	59	0.00
1959	93	75	0.00
1958	76	57	0.02
1957	74	62	0.31
1956	73	44	0.00
1955	99	71	0.00
1954	86	65	0.00
1953	83	54	0.00
1952	87	58	0.00
1951	74	55	0.25
1950	74	34	0.00
1949	78	50	0.00
1948	86	63	0.01
1947	98	70	0.00
1946	89	54	0.37
1945	77	63	0.00
1944	77	63	0.00
1943	82	57	0.00
1942	95	58	0.00
1941	88	59	0.00
1940	75	53	0.00
1939	69	54	0.35
1938	80	65	0.00
1937	77	61	0.11
1936	83	68	0.16
1935	86	59	0.99
1934	79	51	0.00
1933	75	57	0.00
1932	81	57	0.00

What's the all-time high for Sioux Falls on 8/20?

For the date of Aug 20, the highest temperature ever reached in Sioux Falls history is 99 °F which happened in 1955.

Highest Temperatures in Sioux Falls on August 20

What's the all-time low for Sioux Falls on 8/20?

For the date of Aug 20, the lowest temperature ever reached in Sioux Falls history is 34 °F which happened in 1950.

Lowest Temperatures in Sioux Falls on August 20

Lowest High Temperatures in Sioux Falls on August 20

What's the most it has ever rained in Sioux Falls on 8/20?

For the date of Aug 20, the most precipitation ever recorded in Sioux Falls history is 1.51 inches which happened in 2002.

All-Time Most Precipitation in Sioux Falls on August 20

Weather Station Details

Years	Station	Coordinates
1932–2024	Sioux Falls	location