Divisional Rankings

Divisional Data Info
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Illinois, Climate Division 5. East

Average Temperature Rankings, May 2009

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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 2009
1-Month
61.9°F
(16.6°C)
61.0°F
(16.1°C)
0.9°F
(0.5°C)
72nd Coolest
Coolest since:
1907
57th Warmest
Warmest since:
2018
Ties: 1899
Apr–May 2009
2-Month
56.0°F
(13.3°C)
55.5°F
(13.1°C)
0.5°F
(0.2°C)
70th Coolest
Coolest since:
1907
59th Warmest
Warmest since:
1977
Ties: 1932, 1938, 1949, 1974
Mar–May 2009
3-Month
51.4°F
(10.8°C)
49.7°F
(9.8°C)
1.7°F
(1.0°C)
98th Coolest
Coolest since:
1960
31st Warmest
Warmest since:
2012
Ties: 1963, 1988
Feb–May 2009
4-Month
46.2°F
(7.9°C)
44.2°F
(6.8°C)
2.0°F
(1.1°C)
98th Coolest
Coolest since:
1978
31st Warmest
Warmest since:
2012
Jan–May 2009
5-Month
40.6°F
(4.8°C)
40.1°F
(4.5°C)
0.5°F
(0.3°C)
74th Coolest
Coolest since:
1978
55th Warmest
Warmest since:
2012
Ties: 1903, 1934, 1995, 2013, 2018
Dec 2008–May 2009
6-Month
38.0°F
(3.3°C)
38.1°F
(3.4°C)
-0.1°F
(-0.1°C)
56th Coolest
Coolest since:
1978
72nd Warmest
Warmest since:
2012
Ties: 1903
Nov 2008–May 2009
7-Month
38.3°F
(3.5°C)
38.3°F
(3.5°C)
0.0°F
(0.0°C)
55th Coolest
Coolest since:
1904
73rd Warmest
Warmest since:
2012
Ties: 1911, 1913, 2019
Oct 2008–May 2009
8-Month
40.2°F
(4.6°C)
40.2°F
(4.6°C)
0.0°F
(0.0°C)
54th Coolest
Coolest since:
1904
74th Warmest
Warmest since:
2012
Ties: 1913, 1927, 2019
Sep 2008–May 2009
9-Month
43.1°F
(6.2°C)
43.0°F
(6.1°C)
0.1°F
(0.1°C)
68th Coolest
Coolest since:
1904
60th Warmest
Warmest since:
2012
Ties: 1903, 1911, 1913, 1945, 1947, 2001, 2011
Aug 2008–May 2009
10-Month
45.9°F
(7.7°C)
45.9°F
(7.7°C)
0.0°F
(0.0°C)
57th Coolest
Coolest since:
1904
71st Warmest
Warmest since:
2012
Ties: 1923, 1925, 1961
Jul 2008–May 2009
11-Month
48.4°F
(9.1°C)
48.5°F
(9.2°C)
-0.1°F
(-0.1°C)
56th Coolest
Coolest since:
1904
72nd Warmest
Warmest since:
2012
Ties: 1911, 1915, 1923
Jun 2008–May 2009
12-Month
50.4°F
(10.2°C)
50.3°F
(10.2°C)
0.1°F
(0.0°C)
62nd Coolest
Coolest since:
1904
66th Warmest
Warmest since:
2012
Ties: 1946
Dec 2007–May 2009
18-Month
46.1°F
(7.8°C)
46.2°F
(7.9°C)
-0.1°F
(-0.1°C)
55th Coolest
Coolest since:
1905
72nd Warmest
Warmest since:
2017
Ties: 1941, 1948
Jun 2007–May 2009
24-Month
50.8°F
(10.4°C)
50.3°F
(10.2°C)
0.5°F
(0.2°C)
79th Coolest
Coolest since:
1905
48th Warmest
Warmest since:
2017
Ties: 1943, 1972, 1975, 1976, 1985, 1998
Jun 2006–May 2009
36-Month
51.1°F
(10.6°C)
50.3°F
(10.2°C)
0.8°F
(0.4°C)
88th Coolest
Coolest since:
1905, 1906
38th Warmest
Warmest since:
2018
Ties: 1950, 1976, 1990
Jun 2005–May 2009
48-Month
51.7°F
(10.9°C)
50.3°F
(10.2°C)
1.4°F
(0.7°C)
108th Coolest
Coolest since:
1905
17th Warmest
Warmest since:
2019
Ties: 1957
Jun 2004–May 2009
60-Month
51.6°F
(10.9°C)
50.2°F
(10.1°C)
1.4°F
(0.8°C)
110th Coolest
Coolest since:
1905, 1906, 1908
14th Warmest
Warmest since:
2020
Ties: 1991, 2001, 2004, 2022

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