First Day of Summer in Sioux Falls

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
1.1
 
 
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
0.1
 
 
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
0.5
 
 
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 6/21 78 55 0    


*SOG=Snow On Ground


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