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 5. East

Average Temperature Rankings, May 2017

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 2017
1-Month
60.5°F
(15.8°C)
61.0°F
(16.1°C)
-0.5°F
(-0.3°C)
53rd Coolest
Coolest since:
1895
76th Warmest
Warmest since:
2018
Apr–May 2017
2-Month
58.0°F
(14.4°C)
55.4°F
(13.0°C)
2.6°F
(1.4°C)
106th Coolest
Coolest since:
1907
23rd Warmest
Warmest since:
1977
Ties: 2006
Mar–May 2017
3-Month
52.5°F
(11.4°C)
49.7°F
(9.8°C)
2.8°F
(1.6°C)
113th Coolest
Coolest since:
1960
16th Warmest
Warmest since:
2012
Ties: 1896, 1938
Feb–May 2017
4-Month
49.4°F
(9.7°C)
44.2°F
(6.8°C)
5.2°F
(2.9°C)
126th Coolest
Coolest since:
1978
3rd Warmest
Warmest since:
2012
Jan–May 2017
5-Month
45.8°F
(7.7°C)
40.1°F
(4.5°C)
5.7°F
(3.2°C)
127th Coolest
Coolest since:
1978
2nd Warmest
Warmest since:
2012
Dec 2016–May 2017
6-Month
42.8°F
(6.0°C)
38.1°F
(3.4°C)
4.7°F
(2.6°C)
124th Coolest
Coolest since:
1978
4th Warmest
Warmest since:
2012
Ties: 1921
Nov 2016–May 2017
7-Month
43.4°F
(6.3°C)
38.3°F
(3.5°C)
5.1°F
(2.8°C)
126th Coolest
Coolest since:
1904
2nd Warmest
Warmest since:
2012
Oct 2016–May 2017
8-Month
45.4°F
(7.4°C)
40.2°F
(4.6°C)
5.2°F
(2.8°C)
126th Coolest
Coolest since:
1904
2nd Warmest
Warmest since:
2012
Sep 2016–May 2017
9-Month
48.2°F
(9.0°C)
43.0°F
(6.1°C)
5.2°F
(2.9°C)
126th Coolest
Coolest since:
1904
2nd Warmest
Warmest since:
2012
Aug 2016–May 2017
10-Month
50.8°F
(10.4°C)
45.9°F
(7.7°C)
4.9°F
(2.7°C)
126th Coolest
Coolest since:
1904
2nd Warmest
Warmest since:
2012
Jul 2016–May 2017
11-Month
53.0°F
(11.7°C)
48.5°F
(9.2°C)
4.5°F
(2.5°C)
126th Coolest
Coolest since:
1904
2nd Warmest
Warmest since:
2012
Jun 2016–May 2017
12-Month
54.7°F
(12.6°C)
50.3°F
(10.2°C)
4.4°F
(2.4°C)
126th Coolest
Coolest since:
1904
2nd Warmest
Warmest since:
2012
Dec 2015–May 2017
18-Month
50.7°F
(10.4°C)
46.2°F
(7.9°C)
4.5°F
(2.5°C)
126th Coolest
Coolest since:
1905
1st Warmest
Warmest to Date
2017
Jun 2015–May 2017
24-Month
54.1°F
(12.3°C)
50.3°F
(10.2°C)
3.8°F
(2.1°C)
126th Coolest
Coolest since:
1905
1st Warmest
Warmest to Date
2017
Jun 2014–May 2017
36-Month
52.5°F
(11.4°C)
50.3°F
(10.2°C)
2.2°F
(1.2°C)
122nd Coolest
Coolest since:
1905, 1906
4th Warmest
Warmest since:
2018
Jun 2013–May 2017
48-Month
51.5°F
(10.8°C)
50.3°F
(10.2°C)
1.2°F
(0.6°C)
103rd Coolest
Coolest since:
1905
22nd Warmest
Warmest since:
2019
Ties: 1933, 1988, 1991, 2014
Jun 2012–May 2017
60-Month
51.5°F
(10.8°C)
50.3°F
(10.2°C)
1.2°F
(0.6°C)
105th Coolest
Coolest since:
1905, 1906, 1908
19th Warmest
Warmest since:
2020
Ties: 1934, 2000, 2010, 2016

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