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, August 2006

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
August 2006
1-Month 		78.1°F
(25.6°C)		 76.0°F
(24.4°C)		 2.1°F
(1.2°C)		 107th Coolest
Coolest since:
 1915
22nd Warmest
Warmest since:
 1936
Ties: 2000
Jul–Aug 2006
2-Month 		78.4°F
(25.8°C)		 77.0°F
(25.0°C)		 1.4°F
(0.8°C)		 99th Coolest
Coolest since:
 1967
30th Warmest
Warmest since:
 1936
Ties: 1926
Jun–Aug 2006
3-Month 		77.1°F
(25.1°C)		 75.9°F
(24.4°C)		 1.2°F
(0.7°C)		 97th Coolest
Coolest since:
 1915, 1927
32nd Warmest
Warmest since:
 1936
Ties: 1944, 1995
May–Aug 2006
4-Month 		74.1°F
(23.4°C)		 73.2°F
(22.9°C)		 0.9°F
(0.5°C)		 90th Coolest
Coolest since:
 1967
39th Warmest
Warmest since:
 1936
Ties: 1937, 1938, 1986, 1993
Apr–Aug 2006
5-Month 		71.5°F
(21.9°C)		 69.6°F
(20.9°C)		 1.9°F
(1.0°C)		 115th Coolest
Coolest since:
 1907
14th Warmest
Warmest since:
 2010
Mar–Aug 2006
6-Month 		67.4°F
(19.7°C)		 65.5°F
(18.6°C)		 1.9°F
(1.1°C)		 116th Coolest
Coolest since:
 1904
13th Warmest
Warmest since:
 2012
Ties: 1954
Feb–Aug 2006
7-Month 		62.8°F
(17.1°C)		 61.1°F
(16.2°C)		 1.7°F
(0.9°C)		 109th Coolest
Coolest since:
 1904
20th Warmest
Warmest since:
 2012
Ties: 1952, 1986
Jan–Aug 2006
8-Month 		60.2°F
(15.7°C)		 57.3°F
(14.1°C)		 2.9°F
(1.6°C)		 125th Coolest
Coolest since:
 1912
4th Warmest
Warmest since:
 2012
Ties: 1938
Dec 2005–Aug 2006
9-Month 		57.1°F
(13.9°C)		 54.8°F
(12.7°C)		 2.3°F
(1.2°C)		 117th Coolest
Coolest since:
 1904
11th Warmest
Warmest since:
 2012
Ties: 1934, 2000
Nov 2005–Aug 2006
10-Month 		56.3°F
(13.5°C)		 53.8°F
(12.1°C)		 2.5°F
(1.4°C)		 119th Coolest
Coolest since:
 1904
9th Warmest
Warmest since:
 2012
Oct 2005–Aug 2006
11-Month 		56.4°F
(13.6°C)		 54.1°F
(12.3°C)		 2.3°F
(1.3°C)		 119th Coolest
Coolest since:
 1904
9th Warmest
Warmest since:
 2012
Ties: 1991, 2005
Sep 2005–Aug 2006
12-Month 		57.8°F
(14.3°C)		 55.4°F
(13.0°C)		 2.4°F
(1.3°C)		 122nd Coolest
Coolest since:
 1904
6th Warmest
Warmest since:
 2012
Mar 2005–Aug 2006
18-Month 		60.7°F
(15.9°C)		 58.7°F
(14.8°C)		 2.0°F
(1.1°C)		 122nd Coolest
Coolest since:
 1904
6th Warmest
Warmest since:
 2012
Ties: 1999, 2011
Sep 2004–Aug 2006
24-Month 		57.6°F
(14.2°C)		 55.4°F
(13.0°C)		 2.2°F
(1.2°C)		 122nd Coolest
Coolest since:
 1979
5th Warmest
Warmest since:
 2017
Ties: 1933
Sep 2003–Aug 2006
36-Month 		57.1°F
(13.9°C)		 55.4°F
(13.0°C)		 1.7°F
(0.9°C)		 117th Coolest
Coolest since:
 1979
9th Warmest
Warmest since:
 2018
Ties: 1955
Sep 2002–Aug 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: 1957, 2000, 2017
Sep 2001–Aug 2006
60-Month 		56.7°F
(13.7°C)		 55.3°F
(12.9°C)		 1.4°F
(0.8°C)		 114th Coolest
Coolest since:
 1906
10th Warmest
Warmest since:
 2020
Ties: 2009, 2013, 2022

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