Sioux Falls April 21 Weather Records

Daily averages and all-time records for weather in Sioux Falls, South Dakota for the date of April 21.

April 21 All-Time Records 1932–2024
Highest temperature	93 °F	1980
Lowest temperature	20 °F	2021
Lowest daily high	31 °F	1992
Highest daily low	61 °F	1980
Most precipitation	1.13 inches	1952
Most snow	3.6 inches	1988

April 21 All-Time Records
1932–2024

Highest temperature

93 °F

20 °F

31 °F

Highest daily low

61 °F

1.13 inches

3.6 inches

April 21 Average Weather 1991–2020 ¹
Average high	59.9 °F
Average low	36.7 °F
Chance precipitation	36.2%
Chance snow	6.1%

April 21 Average Weather
1991–2020 ¹

Average high

59.9 °F

Average low

36.7 °F

Chance precipitation

36.2%

Chance snow

6.1%

Sioux Falls April 21 Weather by Year

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2024	63	27	0.00	0.0
2023	42	31	0.03	0.4
2022	65	31	0.00	0.0
2021	50	20	0.00	0.1
2020	73	27	0.00	0.0
2019	80	51	0.00	0.0
2018	51	37	0.00	0.0
2017	62	33	0.00	0.0
2016	69	44	0.06	0.0
2015	53	29	0.00	0.0
2014	69	36	0.00	0.0
2013	53	35	0.04	0.0
2012	68	44	0.04	0.0
2011	44	28	0.07	0.0
2010	71	38	0.00	0.0
2009	65	34	0.00	0.0
2008	58	37	0.00	0.0
2007	83	60	0.05	0.0
2006	64	42	0.01	0.0
2005	60	50	0.85	0.0
2004	62	38	0.10	0.0
2003	64	37	0.00	0.0
2002	37	32	0.40	3.5
2001	55	37	0.29	0.0
2000	67	27	0.00	0.0
1999	51	40	0.20	0.0
1998	63	33	0.00	0.0
1997	58	41	0.00	0.0
1996	57	32	0.16	0.0
1995	57	34	0.00	0.0
1994	63	41	0.00	0.0
1993	57	28	0.00	0.0
1992	31	26	0.32	2.6
1991	61	29	0.00	0.0
1990	82	40	0.00	0.0
1989	83	40	0.00	0.0
1988	42	31	0.36	3.6
1987	58	38	0.00	0.0
1986	48	30	0.00	0.0
1985	83	52	0.62	0.0
1984	55	37	0.27	0.0
1983	63	44	0.00	0.0
1982	50	28	0.19	0.0
1981	66	45	0.05	0.0
1980	93	61	0.00	0.0
1979	68	31	0.00	0.0
1978	57	24	0.00	0.0
1977	63	38	0.00	0.0
1976	64	33	0.03	0.0
1975	55	33	0.08	0.0
1974	57	36	0.02	0.0
1973	58	39	0.00	0.0
1972	45	33	0.34	0.0
1971	65	45	0.11	0.0
1970	52	30	0.00	0.0
1969	66	38	0.00	0.0
1968	68	32	0.00	0.0
1967	52	29	0.00	0.0
1966	58	20	0.00	0.0
1965	60	46	0.00	0.0
1964	55	40	0.18	0.0
1963	56	29	0.00	0.0
1962	81	42	0.00	0.0
1961	58	34	0.00	0.0
1960	82	41	0.00	0.0
1959	59	22	0.00	0.0
1958	50	31	0.00	0.0
1957	72	36	0.00	0.0
1956	65	33	0.00	0.0
1955	69	36	0.00	0.0
1954	56	35	0.01	0.0
1953	82	29	0.00	0.0
1952	60	49	1.13	0.0
1951	42	29	0.20	0.0
1950	67	32	0.00	0.0
1949	65	42	0.12	0.0
1948	70	39	0.01	0.0
1947	60	40	0.00	0.0
1946	80	60	0.00	0.0
1945	59	28	0.00	0.0
1944	45	38	0.00	0.0
1943	67	42	0.00	0.0
1942	73	36	0.00	0.0
1941	58	28	0.00	0.0
1940	56	43	0.73	0.0
1939	65	32	0.00	0.0
1938	59	36	0.37	0.0
1937	76	54	0.00	0.0
1936	49	22	0.00	0.0
1935	71	41	0.00	0.0
1934	73	30	0.00	0.0
1933	66	44	0.00	0.0
1932	59	44	0.46	0.0

What's the all-time high for Sioux Falls on 4/21?

For the date of Apr 21, the highest temperature ever reached in Sioux Falls history is 93 °F which happened in 1980.

Highest Temperatures in Sioux Falls on April 21

Rank	Temperature	Year
1	93 °F	1980
2	83 °F	2007
2	83 °F	1989
2	83 °F	1985
5	82 °F	1990
5	82 °F	1960
5	82 °F	1953
8	81 °F	1962
9	80 °F	2019
9	80 °F	1946

What's the all-time low for Sioux Falls on 4/21?

For the date of Apr 21, the lowest temperature ever reached in Sioux Falls history is 20 °F which has happened 2 times, most recently in 2021.

Lowest Temperatures in Sioux Falls on April 21

Rank	Temperature	Year
1	20 °F	2021
1	20 °F	1966
3	22 °F	1959
3	22 °F	1936
5	24 °F	1978
6	26 °F	1992
7	27 °F	2024
7	27 °F	2020
7	27 °F	2000
10	28 °F	1945
10	28 °F	1941
10	28 °F	1993
10	28 °F	1982
10	28 °F	2011

Lowest High Temperatures in Sioux Falls on April 21

Rank	Temperature	Year
1	31 °F	1992
2	37 °F	2002
3	42 °F	1988
3	42 °F	2023
3	42 °F	1951
6	44 °F	2011
7	45 °F	1944
7	45 °F	1972
9	48 °F	1986
10	49 °F	1936

What's the most it has ever rained in Sioux Falls on 4/21?

For the date of Apr 21, the most precipitation ever recorded in Sioux Falls history is 1.13 inches which happened in 1952.

All-Time Most Precipitation in Sioux Falls on April 21

Rank	Precipitation	Year
1	1.13 inches	1952
2	0.85 inches	2005
3	0.73 inches	1940
4	0.62 inches	1985
5	0.46 inches	1932
6	0.40 inches	2002
7	0.37 inches	1938
8	0.36 inches	1988
9	0.34 inches	1972
10	0.32 inches	1992

All-Time Most Snow in Sioux Falls on April 21

Rank	Precipitation	Year
1	3.6 inches	1988
2	3.5 inches	2002
3	2.6 inches	1992
4	0.4 inches	2023
5	0.1 inches	2021

Weather Station Details

Years	Station	Coordinates
1932–2024	Sioux Falls	location