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 2002

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
August 2002
1-Month 		78.0°F
(25.6°C)		 76.0°F
(24.4°C)		 2.0°F
(1.2°C)		 105th Coolest
Coolest since:
 1915
24th Warmest
Warmest since:
 1936
Ties: 1955
Jul–Aug 2002
2-Month 		79.3°F
(26.3°C)		 77.0°F
(25.0°C)		 2.3°F
(1.3°C)		 113th Coolest
Coolest since:
 1967
16th Warmest
Warmest since:
 1936
Ties: 1938, 1943, 2007
Jun–Aug 2002
3-Month 		78.3°F
(25.7°C)		 75.9°F
(24.4°C)		 2.4°F
(1.3°C)		 116th Coolest
Coolest since:
 1915, 1927
13th Warmest
Warmest since:
 1936
Ties: 1943, 1983, 2016
May–Aug 2002
4-Month 		74.4°F
(23.6°C)		 73.2°F
(22.9°C)		 1.2°F
(0.7°C)		 96th Coolest
Coolest since:
 1967
33rd Warmest
Warmest since:
 1936
Ties: 1896, 1922, 2005
Apr–Aug 2002
5-Month 		71.2°F
(21.8°C)		 69.6°F
(20.9°C)		 1.6°F
(0.9°C)		 108th Coolest
Coolest since:
 1907
21st Warmest
Warmest since:
 2010
Ties: 1932, 1964, 1980
Mar–Aug 2002
6-Month 		66.4°F
(19.1°C)		 65.5°F
(18.6°C)		 0.9°F
(0.5°C)		 92nd Coolest
Coolest since:
 1904
37th Warmest
Warmest since:
 2012
Ties: 1911, 1995, 2000, 2001
Feb–Aug 2002
7-Month 		62.4°F
(16.9°C)		 61.1°F
(16.2°C)		 1.3°F
(0.7°C)		 98th Coolest
Coolest since:
 1904
31st Warmest
Warmest since:
 2012
Ties: 1922
Jan–Aug 2002
8-Month 		59.2°F
(15.1°C)		 57.3°F
(14.1°C)		 1.9°F
(1.0°C)		 108th Coolest
Coolest since:
 1912
21st Warmest
Warmest since:
 2012
Ties: 1986
Dec 2001–Aug 2002
9-Month 		57.0°F
(13.9°C)		 54.8°F
(12.7°C)		 2.2°F
(1.2°C)		 114th Coolest
Coolest since:
 1904
14th Warmest
Warmest since:
 2012
Ties: 1938
Nov 2001–Aug 2002
10-Month 		56.5°F
(13.6°C)		 53.8°F
(12.1°C)		 2.7°F
(1.5°C)		 122nd Coolest
Coolest since:
 1904
6th Warmest
Warmest since:
 2012
Ties: 1991
Oct 2001–Aug 2002
11-Month 		56.5°F
(13.6°C)		 54.1°F
(12.3°C)		 2.4°F
(1.3°C)		 121st Coolest
Coolest since:
 1904
7th Warmest
Warmest since:
 2012
Ties: 1954
Sep 2001–Aug 2002
12-Month 		57.4°F
(14.1°C)		 55.4°F
(13.0°C)		 2.0°F
(1.1°C)		 116th Coolest
Coolest since:
 1904
12th Warmest
Warmest since:
 2012
Ties: 2005, 2022
Mar 2001–Aug 2002
18-Month 		60.4°F
(15.8°C)		 58.7°F
(14.8°C)		 1.7°F
(1.0°C)		 115th Coolest
Coolest since:
 1904
13th Warmest
Warmest since:
 2012
Ties: 1939, 1955, 1987, 2000, 2007
Sep 2000–Aug 2002
24-Month 		56.2°F
(13.4°C)		 55.4°F
(13.0°C)		 0.8°F
(0.4°C)		 93rd Coolest
Coolest since:
 1979
34th Warmest
Warmest since:
 2017
Ties: 1943
Sep 1999–Aug 2002
36-Month 		56.7°F
(13.7°C)		 55.4°F
(13.0°C)		 1.3°F
(0.7°C)		 108th Coolest
Coolest since:
 1979
18th Warmest
Warmest since:
 2018
Sep 1998–Aug 2002
48-Month 		56.9°F
(13.8°C)		 55.3°F
(12.9°C)		 1.6°F
(0.9°C)		 115th Coolest
Coolest since:
 1980
10th Warmest
Warmest since:
 2019
Sep 1997–Aug 2002
60-Month 		56.9°F
(13.8°C)		 55.3°F
(12.9°C)		 1.6°F
(0.9°C)		 121st Coolest
Coolest since:
 1906
3rd Warmest
Warmest since:
 2020
Ties: 1934, 1935, 2021

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