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 2020

View Period (Months):
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  • Record Coolest
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  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 2020
1-Month
58.4°F
(14.7°C)
59.0°F
(15.0°C)
-0.6°F
(-0.3°C)
52nd Coolest
Coolest since:
1907
77th Warmest
Warmest since:
1977
Ties: 1904
Apr–May 2020
2-Month
52.4°F
(11.3°C)
53.4°F
(11.9°C)
-1.0°F
(-0.6°C)
36th Coolest
Coolest since:
1907
93rd Warmest
Warmest since:
1896, 1977
Mar–May 2020
3-Month
48.3°F
(9.1°C)
47.5°F
(8.6°C)
0.8°F
(0.5°C)
79th Coolest
Coolest since:
1926
50th Warmest
Warmest since:
2012
Ties: 1898, 1934, 1962, 1974
Feb–May 2020
4-Month
43.3°F
(6.3°C)
41.9°F
(5.5°C)
1.4°F
(0.8°C)
92nd Coolest
Coolest since:
1904, 1947
37th Warmest
Warmest since:
2012
Ties: 1915
Jan–May 2020
5-Month
40.4°F
(4.7°C)
37.8°F
(3.2°C)
2.6°F
(1.5°C)
113th Coolest
Coolest since:
1912
16th Warmest
Warmest since:
2012
Ties: 1999
Dec 2019–May 2020
6-Month
39.1°F
(3.9°C)
35.8°F
(2.1°C)
3.3°F
(1.8°C)
117th Coolest
Coolest since:
1904
11th Warmest
Warmest since:
2012
Nov 2019–May 2020
7-Month
38.3°F
(3.5°C)
36.1°F
(2.3°C)
2.2°F
(1.2°C)
107th Coolest
Coolest since:
1904
21st Warmest
Warmest since:
2012
Ties: 1954
Oct 2019–May 2020
8-Month
39.9°F
(4.4°C)
38.1°F
(3.4°C)
1.8°F
(1.0°C)
101st Coolest
Coolest since:
1904
27th Warmest
Warmest since:
2012
Ties: 1939
Sep 2019–May 2020
9-Month
43.0°F
(6.1°C)
40.9°F
(4.9°C)
2.1°F
(1.2°C)
110th Coolest
Coolest since:
1904
18th Warmest
Warmest since:
2012
Aug 2019–May 2020
10-Month
45.8°F
(7.7°C)
44.0°F
(6.7°C)
1.8°F
(1.0°C)
111th Coolest
Coolest since:
1904
17th Warmest
Warmest since:
2012
Ties: 2005
Jul 2019–May 2020
11-Month
48.5°F
(9.2°C)
46.6°F
(8.1°C)
1.9°F
(1.1°C)
112th Coolest
Coolest since:
1904
16th Warmest
Warmest since:
2012
Ties: 2004
Jun 2019–May 2020
12-Month
50.2°F
(10.1°C)
48.5°F
(9.2°C)
1.7°F
(0.9°C)
109th Coolest
Coolest since:
1904
19th Warmest
Warmest since:
2012
Dec 2018–May 2020
18-Month
45.5°F
(7.5°C)
44.3°F
(6.8°C)
1.2°F
(0.7°C)
98th Coolest
Coolest since:
1905, 1918
29th Warmest
Warmest since:
2017
Ties: 1934, 2011
Jun 2018–May 2020
24-Month
49.5°F
(9.7°C)
48.5°F
(9.2°C)
1.0°F
(0.5°C)
102nd Coolest
Coolest since:
1905
25th Warmest
Warmest since:
2017
Ties: 1935, 2004, 2008, 2016
Jun 2017–May 2020
36-Month
49.3°F
(9.6°C)
48.4°F
(9.1°C)
0.9°F
(0.5°C)
94th Coolest
Coolest since:
1918
32nd Warmest
Warmest since:
2000
Ties: 1921, 1957, 1976, 1990
Jun 2016–May 2020
48-Month
50.1°F
(10.1°C)
48.4°F
(9.1°C)
1.7°F
(1.0°C)
117th Coolest
Coolest since:
1907
8th Warmest
Warmest since:
2001
Ties: 2006, 2018
Jun 2015–May 2020
60-Month
50.4°F
(10.2°C)
48.4°F
(9.1°C)
2.0°F
(1.1°C)
122nd Coolest
Coolest since:
1908
2nd Warmest
Warmest since:
2002

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