Illinois, Climate Division 2 August 2000 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
71.8
71.1
0.7
78
52
1915
1947
1999
1998
normal
1925,1931
2
71.4
72.2
-0.8
40
90
1915
1936
1997
1999
bottom-third
1908,1964
3
70.2
71.0
-0.8
36
94
1915
1988
1997
1999
bottom-third
1979,1994,2014
4
68.2
68.0
0.2
70
60
1915
1934
1997
1999
normal
1965,1973,1984,2013,2019
5
64.2
63.9
0.3
69
61
1907
1991
1997
1999
normal
1938,1943,1975,2015
6
60.9
59.3
1.6
111
19
1926,1950
2012
1999
1999
top-third
1959,1999,2020
7
56.8
54.3
2.5
119
11
1904
2012
1997
1999
top-tenth
8
52.7
50.2
2.5
117
13
1912
2012
1999
1998
top-tenth
2002
9
50.0
47.5
2.5
116
13
1904
2012
1997
1999
top-tenth
2010,2017,2023
10
49.5
46.6
2.9
119
10
1904
2012
1997
1999
top-tenth
2010
11
49.7
47.1
2.6
118
11
1904
2012
1997
1999
top-tenth
1983,2005,2006
12
50.8
48.5
2.3
116
13
1904
2012
1997
1999
top-tenth
1983,1995
18
54.2
52.1
2.1
117
12
1904
2012
1998
1999
top-tenth
1932
24
51.2
48.5
2.7
124
4
1905
2017
1998
1999
top-tenth
2006,2013
36
51.3
48.4
2.9
126
1
1905,1979
2000
1999
2000
highest
48
50.3
48.4
1.9
119
7
1905
2001
1999
2000
top-tenth
2008,2018
60
49.5
48.4
1.1
102
23
1906
2002
1999
1999
top-third
1957,1987,1989,1990,1992,1999