National Weather Service United States Department of Commerce

Fire Weather Threat Continues in California; Wintry Conditions in Northern Rockies, Great Lakes & Northeast

Gusty winds and low humidity will again result in elevated to critical fire weather conditions across portions of California through the weekend. Meanwhile, a cold front will bring rain and high elevation snowfall to the northern Rockies and Pacific Northwest. Areas of snow and seasonably chilly temperatures will also persist near the Great Lakes and parts of the Northeast. Read More >

First Day of Summer in Sioux Falls

Average High Temperature (period of record):  82 Degrees

Average Low Temperature (period of record):  58 Degrees

Average Temperature (period of record):  70 Degrees

Most Precipitation Recorded: 1.91" on June 21, 1984

Record High Temperature:  103 on June 20, 1988

Record Low Temperature: 40 on June 22, 1902 and June 21, 1972

Coldest High Temperature: 61 on June 21, 1916

Warmest Overnight Low: 73 on June 22, 1923 and June 21, 1983

 

Year

Date

Max

Min

Precip

Snowfall

SOG*

1903
6/22
77
46
0
 
 
1904
6/21
81
43
0
 
 
1905
6/21
69
52
0
 
 
1906
6/22
74
45
0
 
 
1907
6/22
M
M
1.10
 
 
1908
6/21
91
67
0
 
 
1909
6/21
86
65
0
 
 
1910
6/22
94
65
0
 
 
1911
6/22
97
69
0
 
 
1912
6/21
84
M
0
 
 
1913
6/21
83
58
0
 
 
1914
6/22
78
64
0
 
 
1915
6/22
77
48
0
 
 
1916
6/21
61
55
0
 
 
1917
6/21
68
48
0
 
 
1918
6/22
76
47
0
 
 
1919
6/22
90
68
0.04
 
 
1920
6/21
68
51
T
 
 
1921
6/21
92
61
0
 
 
1922
6/22
96
70
0
 
 
1923
6/22
92
73
1.35
 
 
1924
6/21
79
58
0
 
 
1925
6/21
90
62
0
 
 
1926
6/21
72
58
0.10
 
 
1927
6/22
70
53
0.05
 
 
1928
6/21
78
56
T
 
 
1929
6/21
78
50
0
 
 
1930
6/21
94
62
0
 
 
1931
6/22
88
70
0.33
 
 
1932
6/21
83
56
0
 
 
1933
6/21
83
62
0.31
 
 
1934
6/21
80
53
T
 
 
1935
6/22
82
50
0
 
 
1936
6/21
78
53
0.43
 
 
1937
6/21
87
63
0
 
 
1938
6/21
95
69
0
 
 
1939
6/22
87
60
0
 
 
1940
6/21
87
59
0.01
 
 
1941
6/21
86
60
0.65
 
 
1942
6/21
72
52
0
 
 
1943
6/22
87
68
0
 
 
1944
6/21
84
61
0
 
 
1945
6/21
82
57
0
 
 
1946
6/21
81
48
0
 
 
1947
6/22
74
55
0.66
 
 
1948
6/21
73
54
0.03
 
 
1949
6/21
86
55
0
 
 
1950
6/21
88
62
0
 
 
1951
6/22
72
56
0.91
 
 
1952
6/21
72
55
0.23
 
 
1953
6/21
75
56
0.02
 
 
1954
6/21
75
60
T
 
 
1955
6/21
84
56
T
 
 
1956
6/21
97
70
0.12
 
 
1957
6/21
86
67
0.01
 
 
1958
6/21
75
44
0
 
 
1959
6/21
82
58
0
 
 
1960
6/21
70
54
T
 
 
1961
6/21
86
59
0.18
 
 
1962
6/21
79
60
0.12
 
 
1963
6/21
77
54
0.03
 
 
1964
6/21
84
56
0
 
 
1965
6/21
80
46
0
 
 
1966
6/21
91
70
0
 
 
1967
6/21
73
54
0
 
 
1968
6/21
85
54
0.11
 
 
1969
6/21
76
52
0.64
 
 
1970
6/21
75
46
0
 
 
1971
6/21
82
56
T
 
 
1972
6/21
70
40
0
 
 
1973
6/21
76
48
0
 
 
1974
6/21
90
64
0.81
 
 
1975
6/21
79
64
0.50
 
 
1976
6/21
93
67
0
 
 
1977
6/21
68
59
0.37
 
 
1978
6/21
77
44
0.23
 
 
1979
6/21
81
58
0
 
 
1980
6/21
87
60
0.02
 
 
1981
6/21
80
55
0.12
 
 
1982
6/21
77
46
0
 
 
1983
6/21
87
73
0
 
 
1984
6/21
75
62
1.91
 
 
1985
6/21
85
55
T
 
 
1986
6/21
89
64
1.14
 
 
1987
6/21
91
65
0.05
 
 
1988
6/20
103
66
0
 
 
1989
6/21
87
59
T
 
 
1990
6/21
73
58
0.17
 
 
1991
6/21
75
60
1.11
 
 
1992
6/20
65
48
T
 
 
1993
6/21
87
56
0
 
 
1994
6/21
88
62
0
 
 
1995
6/21
93
72
0
 
 
1996
6/20
79
57
0.17
 
 
1997
6/21
80
61
T
 
 
1998
6/21
78
56
0.01
 
 
1999
6/21
85
65
0
 
 
2000
6/20
77
58
T
 
 
2001
6/21
74
53
0
 
 
2002
6/21
88
66
0.05
 
 
2003
6/21
80
60
0.08
 
 
2004
6/20
69
53
T
 
 
2005
6/21
81
65
0.03
 
 
2006
6/21
82
62
0.05
 
 
2007 6/21 82 67 0.19    
2008 6/20 86 61 T    
2009 6/21 83 65 0.44    
2010 6/21 81 62 1.28    
2011 6/21 70 59 0.14    
2012 6/20 81 61 0.24    
2013 6/21 87 67 0.20    
2014 6/21 86 63 0.26    
2015 6/21 86 61 0    
2016 6/20 81 60 0    
2017 6/20 81 62 0    
2018 6/21          


*SOG=Snow On Ground