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 7. East Southeast

Average Temperature Rankings, August 2020

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
August 2020
1-Month 		72.8°F
(22.7°C)		 74.2°F
(23.4°C)		 -1.4°F
(-0.7°C)		 33rd Coolest
Coolest since:
 1915
96th Warmest
Warmest since:
 1947
Ties: 1903, 1974, 1999
Jul–Aug 2020
2-Month 		75.1°F
(23.9°C)		 75.3°F
(24.1°C)		 -0.2°F
(-0.2°C)		 64th Coolest
Coolest since:
 1915, 1967
65th Warmest
Warmest since:
 1936
Ties: 1911
Jun–Aug 2020
3-Month 		74.7°F
(23.7°C)		 74.4°F
(23.6°C)		 0.3°F
(0.1°C)		 78th Coolest
Coolest since:
 1927
51st Warmest
Warmest since:
 1936
Ties: 1938, 1947, 1968
May–Aug 2020
4-Month 		71.3°F
(21.8°C)		 71.5°F
(21.9°C)		 -0.2°F
(-0.1°C)		 53rd Coolest
Coolest since:
 1915
76th Warmest
Warmest since:
 1936
Ties: 1895, 1906, 1908, 1940, 2017
Apr–Aug 2020
5-Month 		67.2°F
(19.6°C)		 67.8°F
(19.9°C)		 -0.6°F
(-0.3°C)		 38th Coolest
Coolest since:
 1907
91st Warmest
Warmest since:
 2010
Ties: 1898, 1940, 1974
Mar–Aug 2020
6-Month 		63.7°F
(17.6°C)		 63.5°F
(17.5°C)		 0.2°F
(0.1°C)		 73rd Coolest
Coolest since:
 1960
56th Warmest
Warmest since:
 2012
Ties: 1901, 1943, 1981, 2003, 2009
Feb–Aug 2020
7-Month 		59.5°F
(15.3°C)		 58.9°F
(14.9°C)		 0.6°F
(0.4°C)		 79th Coolest
Coolest since:
 1904
50th Warmest
Warmest since:
 2012
Ties: 1931, 1942, 2004, 2009
Jan–Aug 2020
8-Month 		56.3°F
(13.5°C)		 55.0°F
(12.8°C)		 1.3°F
(0.7°C)		 98th Coolest
Coolest since:
 1978
31st Warmest
Warmest since:
 2012
Dec 2019–Aug 2020
9-Month 		54.2°F
(12.3°C)		 52.4°F
(11.3°C)		 1.8°F
(1.0°C)		 108th Coolest
Coolest since:
 1904
20th Warmest
Warmest since:
 2012
Ties: 1938, 1983, 1995, 2000
Nov 2019–Aug 2020
10-Month 		52.5°F
(11.4°C)		 51.4°F
(10.8°C)		 1.1°F
(0.6°C)		 95th Coolest
Coolest since:
 1904
33rd Warmest
Warmest since:
 2012
Ties: 1942
Oct 2019–Aug 2020
11-Month 		52.8°F
(11.6°C)		 51.8°F
(11.0°C)		 1.0°F
(0.6°C)		 94th Coolest
Coolest since:
 1904
34th Warmest
Warmest since:
 2012
Ties: 1986, 2004, 2021
Sep 2019–Aug 2020
12-Month 		54.5°F
(12.5°C)		 53.1°F
(11.7°C)		 1.4°F
(0.8°C)		 107th Coolest
Coolest since:
 1904
21st Warmest
Warmest since:
 2012
Ties: 1922, 1953, 2007
Mar 2019–Aug 2020
18-Month 		57.4°F
(14.1°C)		 56.5°F
(13.6°C)		 0.9°F
(0.5°C)		 92nd Coolest
Coolest since:
 1904
36th Warmest
Warmest since:
 2012
Ties: 1931, 1986
Sep 2018–Aug 2020
24-Month 		54.0°F
(12.2°C)		 53.0°F
(11.7°C)		 1.0°F
(0.5°C)		 96th Coolest
Coolest since:
 1979
31st Warmest
Warmest since:
 2017
Ties: 1939, 1953, 2019
Sep 2017–Aug 2020
36-Month 		54.1°F
(12.3°C)		 53.0°F
(11.7°C)		 1.1°F
(0.6°C)		 103rd Coolest
Coolest since:
 1979
23rd Warmest
Warmest since:
 2018
Ties: 1922, 1935, 1943, 1999
Sep 2016–Aug 2020
48-Month 		54.7°F
(12.6°C)		 53.0°F
(11.7°C)		 1.7°F
(0.9°C)		 121st Coolest
Coolest since:
 1980
4th Warmest
Warmest since:
 2019
Ties: 1935, 2002, 2007, 2008, 2013, 2018
Sep 2015–Aug 2020
60-Month 		55.0°F
(12.8°C)		 53.0°F
(11.7°C)		 2.0°F
(1.1°C)		 123rd Coolest
Coolest since:
 1906, 1981, 1982
1st Warmest
Warmest to Date
 2020

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