South Dakota May 1991 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
58.1
56.0
2.1
97
33
1907
1934
1990
1988
top-third
1962,2000
2
52.8
50.4
2.4
108
22
1907
1934
1990
1988
top-third
1948
3
47.1
43.8
3.3
113
17
1899
2012
1990
1988
top-third
4
43.1
37.9
5.2
124
6
1899
2012
1990
1987
top-tenth
2000
5
37.3
33.3
4.0
116
14
1899
2012
1989
1990
top-third
6
33.6
31.1
2.5
104
25
1917
2012
1989
1990
top-third
1942,1980
7
34.0
31.1
2.9
112
17
1899
2012
1990
1987
top-third
1976,2002
8
35.7
33.2
2.5
110
19
1899
2012
1990
1987
top-third
2002,2021
9
38.9
36.2
2.7
113
16
1899
2012
1990
1987
top-third
10
42.2
39.7
2.5
114
15
1899
2012
1990
1987
top-third
2004
11
44.8
42.6
2.2
109
20
1899
2012
1990
1987
top-third
12
46.7
44.6
2.1
110
19
1899
2012
1990
1987
top-third
2004,2007
18
42.4
40.0
2.4
111
17
1979
2000
1990
1988
top-third
24
46.5
44.6
1.9
110
18
1917
2000,2017
1990
1988
top-third
2004,2012
36
46.3
44.5
1.8
111
16
1918
2000
1990
1989
top-third
1941,2002,2013
48
46.3
44.5
1.8
114
12
1899
2007
1989
1990
top-tenth
1942,2000,2003,2017
60
46.5
44.5
2.0
116
9
1920
2006,2007
1990
1935
top-tenth