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 8. Southwest

Average Temperature Rankings, April 2006

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
April 2006
1-Month 		61.4°F
(16.3°C)		 55.3°F
(12.9°C)		 6.1°F
(3.4°C)		 123rd Coolest
Coolest since:
 1907
6th Warmest
Warmest since:
 1896
Ties: 2010
Mar–Apr 2006
2-Month 		54.1°F
(12.3°C)		 50.0°F
(10.0°C)		 4.1°F
(2.3°C)		 116th Coolest
Coolest since:
 1960
13th Warmest
Warmest since:
 2012
Ties: 1985
Feb–Apr 2006
3-Month 		47.7°F
(8.7°C)		 44.9°F
(7.2°C)		 2.8°F
(1.5°C)		 108th Coolest
Coolest since:
 1899
21st Warmest
Warmest since:
 2012
Ties: 1999
Jan–Apr 2006
4-Month 		46.4°F
(8.0°C)		 41.5°F
(5.3°C)		 4.9°F
(2.7°C)		 124th Coolest
Coolest since:
 1978
5th Warmest
Warmest since:
 2012
Dec 2005–Apr 2006
5-Month 		43.5°F
(6.4°C)		 40.1°F
(4.5°C)		 3.4°F
(1.9°C)		 120th Coolest
Coolest since:
 1978
8th Warmest
Warmest since:
 2012
Nov 2005–Apr 2006
6-Month 		44.4°F
(6.9°C)		 40.9°F
(4.9°C)		 3.5°F
(2.0°C)		 121st Coolest
Coolest since:
 1912
7th Warmest
Warmest since:
 2012
Oct 2005–Apr 2006
7-Month 		46.4°F
(8.0°C)		 43.2°F
(6.2°C)		 3.2°F
(1.8°C)		 121st Coolest
Coolest since:
 1899, 1978
7th Warmest
Warmest since:
 2012
Sep 2005–Apr 2006
8-Month 		49.7°F
(9.8°C)		 46.5°F
(8.1°C)		 3.2°F
(1.7°C)		 123rd Coolest
Coolest since:
 1918
5th Warmest
Warmest since:
 2017
Ties: 2000
Aug 2005–Apr 2006
9-Month 		52.9°F
(11.6°C)		 49.8°F
(9.9°C)		 3.1°F
(1.7°C)		 123rd Coolest
Coolest since:
 1918
5th Warmest
Warmest since:
 2017
Jul 2005–Apr 2006
10-Month 		55.5°F
(13.1°C)		 52.6°F
(11.4°C)		 2.9°F
(1.7°C)		 123rd Coolest
Coolest since:
 1918
5th Warmest
Warmest since:
 2012
Jun 2005–Apr 2006
11-Month 		57.3°F
(14.1°C)		 54.5°F
(12.5°C)		 2.8°F
(1.6°C)		 123rd Coolest
Coolest since:
 1918
5th Warmest
Warmest since:
 2012, 2017
May 2005–Apr 2006
12-Month 		57.9°F
(14.4°C)		 55.4°F
(13.0°C)		 2.5°F
(1.4°C)		 122nd Coolest
Coolest since:
 1918
6th Warmest
Warmest since:
 2012, 2017
Ties: 1954
Nov 2004–Apr 2006
18-Month 		53.2°F
(11.8°C)		 50.5°F
(10.3°C)		 2.7°F
(1.5°C)		 124th Coolest
Coolest since:
 1905, 1979
3rd Warmest
Warmest to Date
 2017
Ties: 2012
May 2004–Apr 2006
24-Month 		57.3°F
(14.1°C)		 55.4°F
(13.0°C)		 1.9°F
(1.1°C)		 119th Coolest
Coolest since:
 1978
8th Warmest
Warmest since:
 2017
Ties: 1933, 1935, 1954
May 2003–Apr 2006
36-Month 		56.9°F
(13.8°C)		 55.4°F
(13.0°C)		 1.5°F
(0.8°C)		 114th Coolest
Coolest since:
 1979
12th Warmest
Warmest since:
 2018
Ties: 1956, 2001
May 2002–Apr 2006
48-Month 		56.6°F
(13.7°C)		 55.3°F
(12.9°C)		 1.3°F
(0.8°C)		 109th Coolest
Coolest since:
 1980
16th Warmest
Warmest since:
 2019
Ties: 2000, 2001, 2009
May 2001–Apr 2006
60-Month 		56.7°F
(13.7°C)		 55.3°F
(12.9°C)		 1.4°F
(0.8°C)		 117th Coolest
Coolest since:
 1980, 1981
7th Warmest
Warmest since:
 2020
Ties: 2002, 2003, 2009, 2012, 2013

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