National Weather Service United States Department of Commerce

Fire Weather Threats Continue in the West; Wintry Weather from Upper Midwest to New England

High pressure in the west continues to send weather systems into the Great Basin, and this is keeping fire weather threats elevated to critical across southern California. A series of weather systems will bring widespread snow from the Upper Midwest to the Northeast U.S., with locally heavier snow amounts on the lee side of the Great Lakes. Read More >

First Day of Autumn in Sioux Falls

Average High Temperature (period of record):  71 Degrees

Average Low Temperature (period of record):  46 Degrees

Average Temperature (period of record):  59 Degrees

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          


*SOG=Snow On Ground