National Weather Service United States Department of Commerce

Locally Heavy Rainfall for the Carolinas; Thunderstorms and Fire Weather Concerns for Intermountain West

Heavy rainfall from scattered thunderstorms is expected across the Southwest, Intermountain West, and Plains. Isolated dry thunderstorms may initiate additional fires across the west. The coastal Carolinas may experience flash floods in the coming days due to repeated thunderstorms. Additionally, a wave of intense summer heat will hit the Southern Plains and central Gulf Coast States this week. Read More >

First Day of Autumn in Sioux Falls

Average High Temperature (period of record):  72 Degrees

Average Low Temperature (period of record):  46 Degrees

Average Temperature (period of record):  60 Degrees

Average Precipitation (period of record):  0.07"

Percentage of Days with Precipitation (period of record):  31%

Percentage of Days with Snowfall (period of record):  0%

Most Precipitation Recorded: 1.01" on September 23, 1951

Record High Temperature:  92 on September 23 1935

Record Low Temperature: 28 on September 23, 1983

Coldest High Temperature: 43 on September 23, 1965

Warmest Overnight Low: 70 on September 23, 1937

 

Year

Date

Max

Min

Precip

Snowfall

SOG*

1903
9/24
73
35
0
0
M
1904
9/23
83
57
0
0
M
1905
9/23
80
48
0
0
M
1906
9/23
78
49
0
0
M
1907
9/24
62
37
0
0
M
1908
9/23
85
48
0
0
M
1909
9/23
83
40
0
0
M
1910
9/23
64
40
T
0
M
1911
9/23
85
59
0
0
M
1912
9/23
78
40
0
0
M
1913
9/23
69
40
0.70
0
M
1914
9/23
72
41
0
0
M
1915
9/23
79
46
0
0
M
1916
9/23
76
33
0
0
M
1917
9/23
85
52
0
0
M
1918
9/23
84
50
0
0
M
1919
9/23
86
42
0
0
M
1920
9/23
77
60
0.39
0
M
1921
9/23
82
50
T
0
M
1922
9/23
80
55
0
0
M
1923
9/23
80
59
0
0
M
1924
9/23
76
50
0
0
M
1925
9/23
73
43
0
0
M
1926
9/23
66
50
0
0
M
1927
9/23
65
42
0
0
M
1928
9/23
57
32
0
0
M
1929
9/23
80
68
0
0
M
1930
9/23
83
69
0
0
M
1931
9/23
65
43
0
0
M
1932
9/23
63
37
0
0
0
1933
9/23
70
55
T
0
0
1934
9/23
70
40
0
0
0
1935
9/23
92
66
0
0
0
1936
9/23
82
60
0
0
0
1937
9/23
85
70
0.27
0
0
1938
9/23
88
55
0
0
0
1939
9/23
79
46
0
0
0
1940
9/22
85
63
0
0
0
1941
9/23
76
47
0
0
0
1942
9/23
49
34
T
0
0
1943
9/23
67
38
0
0
0
1944
9/22
58
45
0.08
0
0
1945
9/23
70
52
0
0
0
1946
9/23
50
38
0.01
0
0
1947
9/23
80
47
0
0
0
1948
9/22
68
54
0
0
0
1949
9/23
68
33
0
0
0
1950
9/23
69
45
0
0
0
1951
9/23
51
38
1.01
0
0
1952
9/22
61
37
0
0
0
1953
9/23
77
51
T
0
0
1954
9/23
80
49
0
0
0
1955
9/23
63
40
0
0
0
1956
9/22
71
43
T
0
0
1957
9/23
66
37
0
0
0
1958
9/23
82
68
T
0
0
1959
9/23
63
49
0
0
0
1960
9/22
60
43
0.06
0
0
1961
9/23
51
41
0.02
0
0
1962
9/23
71
48
T
0
0
1963
9/23
70
52
0.03
0
0
1964
9/22
67
48
0.11
0
0
1965
9/23
43
35
0
0
0
1966
9/23
71
40
0
0
0
1967
9/23
67
40
0
0
0
1968
9/22
78
63
0.99
0
0
1969
9/23
61
40
0
0
0
1970
9/23
64
42
0.40
0
0
1971
9/23
71
33
0
0
0
1972
9/22
70
42
0
0
0
1973
9/22
78
45
0
0
0
1974
9/23
79
49
T
0
0
1975
9/23
66
42
0
0
0
1976
9/22
81
35
0
0
0
1977
9/22
65
52
T
0
0
1978
9/23
77
50
0
0
0
1979
9/23
75
49
0
0
0
1980
9/22
63
39
T
0
0
1981
9/22
72
45
0
0
0
1982
9/23
76
46
0
0
0
1983
9/23
66
28
0
0
0
1984
9/22
70
46
0.02
0
0
1985
9/22
60
49
0.16
0
0
1986
9/23
70
50
0
0
0
1987
9/23
81
40
0
0
0
1988
9/22
69
45
0
0
0
1989
9/22
60
34
0
0
0
1990
9/23
64
33
0
0
0
1991
9/23
57
34
0.68
0
0
1992
9/22
62
37
0
0
0
1993
9/22
59
42
T
0
0
1994
9/23
61
45
0.04
0
0
1995
9/23
65
44
0
0
0
1996
9/22
66
40
T
0
0
1997
9/22
53
48
0.89
0
0
1998
9/23
63
42
T
0
0
1999
9/23
79
41
0
0
0
2000
9/22
53
44
0.44
0
0
2001
9/22
74
49
0
0
0
2002
9/22
64
38
0
0
0
2003
9/23
79
38
0
0
0
2004
9/22
70
56
0.33
0
0
2005
9/22
70
46
0.01
0
0
2006
9/22
57
52
0.34
0
0
2007 9/23 89 62 0 0 0
2008 9/22 81 65 0.02 0 0
2009 9/22 63 52 T 0 0
2010 9/22 69 49 0.73 0 0
2011 9/23 67 30 0 0 0
2012 9/22 60 32 0 0 0
2013 9/22 83 51 0 0 0
2014 9/22 74 43 0 0 0
2015 9/23 72 64 0.40 0 0
2016 9/22 78 62 0.19 0 0
2017 9/22 91 67 0 0 0
2018 9/22 70 45 0 0 0
2019 9/23 79 48 0 0 0
2020 9/22 89 57 0 0 0
2021 9/22 71 41 0 0 0
2022 9/22          
2023 9/23          


*SOG=Snow On Ground