Divisional Rankings

Divisional Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Illinois, Climate Division 2. Northeast

Average Temperature Rankings, May 2009

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  • Record Coolest
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 2009
1-Month
59.9°F
(15.5°C)
58.9°F
(14.9°C)
1.0°F
(0.6°C)
77th Coolest
Coolest since:
1907
52nd Warmest
Warmest since:
1977
Ties: 1933
Apr–May 2009
2-Month
53.6°F
(12.0°C)
53.3°F
(11.8°C)
0.3°F
(0.2°C)
68th Coolest
Coolest since:
1907
61st Warmest
Warmest since:
1896, 1977
Ties: 1936, 1939, 1974
Mar–May 2009
3-Month
48.7°F
(9.3°C)
47.5°F
(8.6°C)
1.2°F
(0.7°C)
86th Coolest
Coolest since:
1926
43rd Warmest
Warmest since:
2012
Ties: 1981
Feb–May 2009
4-Month
43.5°F
(6.4°C)
41.9°F
(5.5°C)
1.6°F
(0.9°C)
95th Coolest
Coolest since:
1904, 1947
34th Warmest
Warmest since:
2012
Jan–May 2009
5-Month
37.7°F
(3.2°C)
37.7°F
(3.2°C)
0.0°F
(0.0°C)
57th Coolest
Coolest since:
1912
72nd Warmest
Warmest since:
2012
Ties: 1909, 1914, 1961, 2011
Dec 2008–May 2009
6-Month
35.0°F
(1.7°C)
35.8°F
(2.1°C)
-0.8°F
(-0.4°C)
37th Coolest
Coolest since:
1904
91st Warmest
Warmest since:
2012
Ties: 1900, 1907, 1948, 2008
Nov 2008–May 2009
7-Month
35.6°F
(2.0°C)
36.1°F
(2.3°C)
-0.5°F
(-0.3°C)
41st Coolest
Coolest since:
1904
87th Warmest
Warmest since:
2012
Ties: 1916
Oct 2008–May 2009
8-Month
37.6°F
(3.1°C)
38.2°F
(3.4°C)
-0.6°F
(-0.3°C)
42nd Coolest
Coolest since:
1904
86th Warmest
Warmest since:
2012
Sep 2008–May 2009
9-Month
40.6°F
(4.8°C)
40.9°F
(4.9°C)
-0.3°F
(-0.1°C)
44th Coolest
Coolest since:
1904
84th Warmest
Warmest since:
2012
Ties: 1907, 1916, 1947
Aug 2008–May 2009
10-Month
43.6°F
(6.4°C)
43.9°F
(6.6°C)
-0.3°F
(-0.2°C)
43rd Coolest
Coolest since:
1904
85th Warmest
Warmest since:
2012
Ties: 1927, 1950
Jul 2008–May 2009
11-Month
46.3°F
(7.9°C)
46.7°F
(8.2°C)
-0.4°F
(-0.3°C)
43rd Coolest
Coolest since:
1904
85th Warmest
Warmest since:
2012
Ties: 1908, 1967, 1980
Jun 2008–May 2009
12-Month
48.3°F
(9.1°C)
48.5°F
(9.2°C)
-0.2°F
(-0.1°C)
50th Coolest
Coolest since:
1904
78th Warmest
Warmest since:
2012
Dec 2007–May 2009
18-Month
43.8°F
(6.6°C)
44.2°F
(6.8°C)
-0.4°F
(-0.2°C)
39th Coolest
Coolest since:
1905, 1918
88th Warmest
Warmest since:
2017
Ties: 1900, 1903, 1948, 1994
Jun 2007–May 2009
24-Month
48.7°F
(9.3°C)
48.4°F
(9.1°C)
0.3°F
(0.2°C)
68th Coolest
Coolest since:
1905
59th Warmest
Warmest since:
2017
Ties: 1901, 1941, 1943, 1972, 1981
Jun 2006–May 2009
36-Month
49.1°F
(9.5°C)
48.4°F
(9.1°C)
0.7°F
(0.4°C)
86th Coolest
Coolest since:
1918
40th Warmest
Warmest since:
2000
Ties: 1954, 1974, 1985
Jun 2005–May 2009
48-Month
49.8°F
(9.9°C)
48.4°F
(9.1°C)
1.4°F
(0.8°C)
107th Coolest
Coolest since:
1907
18th Warmest
Warmest since:
2001
Jun 2004–May 2009
60-Month
49.8°F
(9.9°C)
48.4°F
(9.1°C)
1.4°F
(0.8°C)
111th Coolest
Coolest since:
1908
13th Warmest
Warmest since:
2002
Ties: 1935, 1991, 1992, 2000, 2012

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