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, July 2017

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
July 2017
1-Month 		74.6°F
(23.7°C)		 74.4°F
(23.6°C)		 0.2°F
(0.1°C)		 81st Coolest
Coolest since:
 2014
48th Warmest
Warmest since:
 1936
Ties: 1973, 1989
Jun–Jul 2017
2-Month 		73.5°F
(23.1°C)		 72.4°F
(22.4°C)		 1.1°F
(0.7°C)		 94th Coolest
Coolest since:
 1958
35th Warmest
Warmest since:
 1934
Ties: 1923
May–Jul 2017
3-Month 		69.2°F
(20.7°C)		 68.6°F
(20.3°C)		 0.6°F
(0.4°C)		 78th Coolest
Coolest since:
 1924
51st Warmest
Warmest since:
 1934
Ties: 1942, 1956, 1982, 1995, 2001, 2002
Apr–Jul 2017
4-Month 		65.8°F
(18.8°C)		 63.9°F
(17.7°C)		 1.9°F
(1.1°C)		 108th Coolest
Coolest since:
 1907
21st Warmest
Warmest since:
 1991
Ties: 1998, 2011
Mar–Jul 2017
5-Month 		60.9°F
(16.1°C)		 58.8°F
(14.9°C)		 2.1°F
(1.2°C)		 118th Coolest
Coolest since:
 1960
11th Warmest
Warmest since:
 2012
Ties: 1946, 1985, 1988
Feb–Jul 2017
6-Month 		57.4°F
(14.1°C)		 53.5°F
(11.9°C)		 3.9°F
(2.2°C)		 124th Coolest
Coolest since:
 1904, 1947
5th Warmest
Warmest since:
 2012
Jan–Jul 2017
7-Month 		53.7°F
(12.1°C)		 49.3°F
(9.6°C)		 4.4°F
(2.5°C)		 126th Coolest
Coolest since:
 1912
3rd Warmest
Warmest since:
 2012
Dec 2016–Jul 2017
8-Month 		50.5°F
(10.3°C)		 46.7°F
(8.2°C)		 3.8°F
(2.1°C)		 123rd Coolest
Coolest since:
 1904
5th Warmest
Warmest since:
 2012
Nov 2016–Jul 2017
9-Month 		50.1°F
(10.1°C)		 45.9°F
(7.7°C)		 4.2°F
(2.4°C)		 126th Coolest
Coolest since:
 1904
2nd Warmest
Warmest since:
 2012
Oct 2016–Jul 2017
10-Month 		51.0°F
(10.6°C)		 46.6°F
(8.1°C)		 4.4°F
(2.5°C)		 126th Coolest
Coolest since:
 1904
2nd Warmest
Warmest since:
 2012
Sep 2016–Jul 2017
11-Month 		52.8°F
(11.6°C)		 48.4°F
(9.1°C)		 4.4°F
(2.5°C)		 126th Coolest
Coolest since:
 1904
2nd Warmest
Warmest since:
 2012
Aug 2016–Jul 2017
12-Month 		54.6°F
(12.6°C)		 50.3°F
(10.2°C)		 4.3°F
(2.4°C)		 126th Coolest
Coolest since:
 1904
2nd Warmest
Warmest since:
 2012
Feb 2016–Jul 2017
18-Month 		55.2°F
(12.9°C)		 51.4°F
(10.8°C)		 3.8°F
(2.1°C)		 127th Coolest
Coolest since:
 1918
1st Warmest
Warmest since:
 2012, 2017
Ties: 2012
Aug 2015–Jul 2017
24-Month 		54.2°F
(12.3°C)		 50.3°F
(10.2°C)		 3.9°F
(2.1°C)		 126th Coolest
Coolest since:
 1905
1st Warmest
Warmest to Date
 2017
Aug 2014–Jul 2017
36-Month 		52.6°F
(11.4°C)		 50.2°F
(10.1°C)		 2.4°F
(1.3°C)		 123rd Coolest
Coolest since:
 1904, 1905, 1906
3rd Warmest
Warmest since:
 2018
Ties: 2012
Aug 2013–Jul 2017
48-Month 		51.5°F
(10.8°C)		 50.2°F
(10.1°C)		 1.3°F
(0.7°C)		 104th Coolest
Coolest since:
 1905
21st Warmest
Warmest since:
 2019
Ties: 1988, 1991, 2009
Aug 2012–Jul 2017
60-Month 		51.4°F
(10.8°C)		 50.3°F
(10.2°C)		 1.1°F
(0.6°C)		 99th Coolest
Coolest since:
 1906
25th Warmest
Warmest since:
 2020
Ties: 1989, 2000, 2014

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