Sioux Falls May 18 Weather Records

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

May 18 All-Time Records 1932–2024
Highest temperature	98 °F	1934
Lowest temperature	30 °F	2002
Lowest daily high	45 °F	2015
Highest daily low	69 °F	1977
Most precipitation	1.22 inches	1996
Most snow	0.1 inches	1968

May 18 All-Time Records
1932–2024

Highest temperature

98 °F

30 °F

45 °F

Highest daily low

69 °F

1.22 inches

0.1 inches

May 18 Average Weather 1991–2020 ¹
Average high	70.4 °F
Average low	47.7 °F
Chance precipitation	40.6%
Chance snow	0%

May 18 Average Weather
1991–2020 ¹

Average high

70.4 °F

Average low

47.7 °F

Chance precipitation

40.6%

Chance snow

Sioux Falls May 18 Weather by Year

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	75	51	0.03	0.0
2022	84	46	0.00	0.0
2021	68	59	0.00	0.0
2020	66	45	0.00	0.0
2019	71	48	0.34	0.0
2018	76	55	0.00	0.0
2017	55	49	0.00	0.0
2016	70	37	0.00	0.0
2015	45	36	0.00	0.0
2014	71	45	0.00	0.0
2013	81	65	0.00	0.0
2012	91	67	0.00	0.0
2011	69	36	0.00	0.0
2010	78	40	0.00	0.0
2009	87	45	0.00	0.0
2008	72	42	0.00	0.0
2007	81	54	0.00	0.0
2006	75	43	0.00	0.0
2005	70	49	0.88	0.0
2004	71	40	0.00	0.0
2003	78	55	0.00	0.0
2002	59	30	0.00	0.0
2001	78	46	0.00	0.0
2000	59	39	0.88	0.0
1999	72	37	0.00	0.0
1998	88	62	0.00	0.0
1997	75	44	0.10	0.0
1996	90	56	1.22	0.0
1995	71	41	0.00	0.0
1994	87	62	0.00	0.0
1993	58	44	0.00	0.0
1992	73	49	0.00	0.0
1991	51	45	0.00	0.0
1990	73	41	0.27	0.0
1989	64	58	0.44	0.0
1988	78	61	0.11	0.0
1987	63	52	0.01	0.0
1986	66	34	0.00	0.0
1985	79	49	0.00	0.0
1984	76	50	0.00	0.0
1983	54	47	0.12	0.0
1982	74	50	0.00	0.0
1981	70	44	0.00	0.0
1980	67	46	0.02	0.0
1979	62	48	0.17	0.0
1978	77	47	0.11	0.0
1977	87	69	0.00	0.0
1976	75	33	0.00	0.0
1975	85	55	0.00	0.0
1974	56	51	0.27	0.0
1973	80	50	0.00	0.0
1972	83	63	0.00	0.0
1971	56	46	0.01	0.0
1970	91	63	0.00	0.0
1969	69	39	0.00	0.0
1968	49	33	0.07	0.1
1967	82	46	0.00	0.0
1966	64	41	0.02	0.0
1965	65	42	0.00	0.0
1964	85	58	0.00	0.0
1963	70	45	0.02	0.0
1962	75	57	0.55	0.0
1961	52	43	0.00	0.0
1960	66	54	0.86	0.0
1959	82	54	0.02	0.0
1958	71	47	0.00	0.0
1957	46	44	0.00	0.0
1956	85	52	0.00	0.0
1955	82	53	0.00	0.0
1954	65	40	0.02	0.0
1953	67	42	0.00	0.0
1952	67	35	0.00	0.0
1951	74	59	0.09	0.0
1950	73	48	0.31	0.0
1949	69	48	0.00	0.0
1948	84	52	0.00	0.0
1947	80	49	0.37	0.0
1946	70	43	0.12	0.0
1945	66	45	0.00	0.0
1944	78	59	0.00	0.0
1943	68	38	0.00	0.0
1942	55	39	0.00	0.0
1941	87	60	0.00	0.0
1940	70	50	0.27	0.0
1939	86	62	0.00	0.0
1938	69	54	0.33	0.0
1937	67	51	0.00	0.0
1936	74	49	0.00	0.0
1935	65	50	0.00	0.0
1934	98	63	0.00	0.0
1933	87	56	0.00	0.0
1932	82	52	0.00	0.0

What's the all-time high for Sioux Falls on 5/18?

For the date of May 18, the highest temperature ever reached in Sioux Falls history is 98 °F which happened in 1934.

Highest Temperatures in Sioux Falls on May 18

Rank	Temperature	Year
1	98 °F	1934
2	91 °F	1970
2	91 °F	2012
4	90 °F	1996
5	88 °F	1998
6	87 °F	1941
6	87 °F	1933
6	87 °F	1994
6	87 °F	1977
6	87 °F	2009

What's the all-time low for Sioux Falls on 5/18?

For the date of May 18, the lowest temperature ever reached in Sioux Falls history is 30 °F which happened in 2002.

Lowest Temperatures in Sioux Falls on May 18

Rank	Temperature	Year
1	30 °F	2002
2	33 °F	1968
2	33 °F	1976
4	34 °F	1986
5	35 °F	1952
6	36 °F	2011
6	36 °F	2015
8	37 °F	1999
8	37 °F	2016
10	38 °F	1943

Lowest High Temperatures in Sioux Falls on May 18

Rank	Temperature	Year
1	45 °F	2015
2	46 °F	1957
3	49 °F	1968
4	51 °F	1991
5	52 °F	1961
6	54 °F	1983
7	55 °F	1942
7	55 °F	2017
9	56 °F	1971
9	56 °F	1974

What's the most it has ever rained in Sioux Falls on 5/18?

For the date of May 18, the most precipitation ever recorded in Sioux Falls history is 1.22 inches which happened in 1996.

All-Time Most Precipitation in Sioux Falls on May 18

Rank	Precipitation	Year
1	1.22 inches	1996
2	0.88 inches	2005
2	0.88 inches	2000
4	0.86 inches	1960
5	0.55 inches	1962
6	0.44 inches	1989
7	0.37 inches	1947
8	0.34 inches	2019
9	0.33 inches	1938
10	0.31 inches	1950

All-Time Most Snow in Sioux Falls on May 18

Rank	Precipitation	Year
1	0.1 inches	1968

Weather Station Details

Years	Station	Coordinates
1932–2024	Sioux Falls	location