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Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

Labor Day in Sioux Falls

Average High Temperature (period of record):  79 Degrees

Average Low Temperature (period of record):  55 Degrees

Average Temperature (period of record):  67 Degrees

Average Precipitation (period of record):  0.10"

Percentage of Days with Precipitation (period of record):  40%

Most Precipitation Recorded: 1.79" on September 6, 1948

Record High Temperature:  104 on September 6, 1976

Record Low Temperature: 36 on September 2, 1974

Coldest High Temperature: 57 on September 6, 1965

Warmest Overnight Low: 72 on September 5, 1960 and September 3, 1990

 

Year

Date

Max

Min

Precip

Snowfall

SOG*

1894
9/3
94
66
0
 
 
1895
9/2
85
59
0
 
 
1896
9/7
85
52
0
 
 
1897
9/6
93
64
 
 
 
1898
9/5
83
49
0.04
 
 
1899
9/4
88
57
T
 
 
1900
9/3
88
51
0
 
 
1901
9/2
88
59
0
 
 
1902
9/1
69
49
0
 
 
1903
9/7
79
61
0.50
 
 
1904
9/5
85
55
0
 
 
1905
9/4
77
39
0
 
 
1906
9/3
83
49
0
 
 
1907
9/2
76
48
0
 
 
1908
9/7
88
52
0
 
 
1909
9/6
69
46
0
 
 
1910
9/5
79
58
0
 
 
1911
9/4
85
60
0
 
 
1912
9/2
82
55
0.15
 
 
1913
9/1
97
67
0
 
 
1914
9/7
68
50
0.19
 
 
1915
9/6
77
60
0
 
 
1916
9/4
91
60
0
 
 
1917
9/3
72
50
0
 
 
1918
9/2
65
56
0.05
 
 
1919
9/1
80
51
0
 
 
1920
9/6
75
45
0
 
 
1921
9/5
78
47
0
 
 
1922
9/4
92
65
0
 
 
1923
9/3
80
58
0
 
 
1924
9/1
70
54
0
 
 
1925
9/7
80
61
0
 
 
1926
9/6
79
61
T
 
 
1927
9/5
80
62
0
 
 
1928
9/3
62
41
T
 
 
1929
9/2
94
62
0
 
 
1930
9/1
80
51
0.28
 
 
1931
9/7
96
67
0.15
 
 
1932
9/5
76
49
0
 
 
1933
9/4
86
65
0
 
 
1934
9/3
62
41
0
 
 
1935
9/2
70
43
0
 
 
1936
9/7
83
57
0.10
 
 
1937
9/6
85
63
0
 
 
1938
9/5
80
68
1.23
 
 
1939
9/4
85
64
0
 
 
1940
9/2
82
57
0
 
 
1941
9/1
89
57
T
 
 
1942
9/7
71
59
T
 
 
1943
9/6
65
43
0
 
 
1944
9/4
75
55
0
 
 
1945
9/3
81
57
T
 
 
1946
9/2
71
44
0
 
 
1947
9/1
87
56
0
 
 
1948
9/6
74
57
1.79
 
 
1949
9/5
69
51
0.12
 
 
1950
9/4
79
43
0
 
 
1951
9/3
67
55
0
 
 
1952
9/1
65
49
0
 
 
1953
9/7
78
42
0
 
 
1954
9/6
80
55
0.01
 
 
1955
9/5
82
42
0
 
 
1956
9/3
73
51
T
 
 
1957
9/2
76
57
T
 
 
1958
9/1
87
50
0
 
 
1959
9/7
95
66
0
 
 
1960
9/5
93
72
0
 
 
1961
9/4
69
48
0.01
 
 
1962
9/3
64
48
0.23
 
 
1963
9/2
75
58
T
 
 
1964
9/7
72
60
1.30
 
 
1965
9/6
57
46
0.09
 
 
1966
9/5
71
50
0
 
 
1967
9/4
79
48
0
 
 
1968
9/2
82
47
0.01
 
 
1969
9/1
80
48
0
 
 
1970
9/7
76
53
T
 
 
1971
9/6
87
55
0
 
 
1972
9/4
74
56
0.13
 
 
1973
9/3
76
62
T
 
 
1974
9/2
61
36
0.02
 
 
1975
9/1
81
63
0
 
 
1976
9/6
104
58
0
 
 
1977
9/5
80
53
0
 
 
1978
9/4
88
61
0
 
 
1979
9/3
84
60
1.65
 
 
1980
9/1
73
56
0
 
 
1981
9/7
77
56
0
 
 
1982
9/6
65
54
T
 
 
1983
9/5
75
56
0.66
 
 
1984
9/3
77
43
0
 
 
1985
9/2
86
58
0.13
 
 
1986
9/1
79
60
0.01
 
 
1987
9/7
81
49
T
 
 
1988
9/5
72
40
0
 
 
1989
9/4
78
57
0.12
 
 
1990
9/3
93
72
0
 
 
1991
9/2
89
68
0
 
 
1992
9/7
65
42
0.57
 
 
1993
9/6
70
46
0
 
 
1994
9/5
73
55
0
 
 
1995
9/4
86
64
0
 
 
1996
9/2
85
67
0.08
 
 
1997
9/1
88
65
0.05
 
 
1998
9/7
75
50
0
 
 
1999
9/6
80
53
T
 
 
2000
9/4
73
58
0.65
 
 
2001
9/3
82
58
0
 
 
2002
9/2
78
55
0
 
 
2003
9/1
78
54
0
 
 
2004
9/6
73
50
0
 
 
2005
9/5
87
64
0.32
 
 
2006
9/4
76
49
0
 
 
2007 9/3 89 60 0    
2008 9/1 89 71 0    
2009 9/7 78 54 0    
2010 9/6 74 54 0.14    
2011 9/5 70 42 0    
2012 9/3 92 60 0.84    
2013 9/2 78 49 0    
2014 9/1 78 60 0.02    
2015 9/7 77 53 0.01    
2016 9/5 81 65 1.46    
2017 9/4 73 53 0    
2018 9/3 79 64 T    
2019 9/2 82 67 T    
2020 9/7 63 48 0.01    
2021 9/6 90 52 0    
2022 9/5          
2023 9/4          


*SOG=Snow On Ground