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, September 2016

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 2016
1-Month 		71.3°F
(21.8°C)		 67.4°F
(19.7°C)		 3.9°F
(2.1°C)		 116th Coolest
Coolest since:
 1918
13th Warmest
Warmest since:
 1925
Aug–Sep 2016
2-Month 		73.9°F
(23.3°C)		 70.9°F
(21.6°C)		 3.0°F
(1.7°C)		 122nd Coolest
Coolest since:
 1967
7th Warmest
Warmest since:
 1936
Ties: 1954, 1983
Jul–Sep 2016
3-Month 		74.6°F
(23.7°C)		 72.7°F
(22.6°C)		 1.9°F
(1.1°C)		 111th Coolest
Coolest since:
 1967
18th Warmest
Warmest since:
 1936
Ties: 1901
Jun–Sep 2016
4-Month 		74.9°F
(23.8°C)		 72.6°F
(22.6°C)		 2.3°F
(1.2°C)		 116th Coolest
Coolest since:
 1967
13th Warmest
Warmest since:
 1936
Ties: 1983
May–Sep 2016
5-Month 		72.4°F
(22.4°C)		 70.7°F
(21.5°C)		 1.7°F
(0.9°C)		 105th Coolest
Coolest since:
 1924
24th Warmest
Warmest since:
 1936
Apr–Sep 2016
6-Month 		69.4°F
(20.8°C)		 67.8°F
(19.9°C)		 1.6°F
(0.9°C)		 105th Coolest
Coolest since:
 1907
24th Warmest
Warmest since:
 2010
Ties: 1959
Mar–Sep 2016
7-Month 		66.5°F
(19.2°C)		 64.0°F
(17.8°C)		 2.5°F
(1.4°C)		 121st Coolest
Coolest since:
 1924
8th Warmest
Warmest since:
 2012
Feb–Sep 2016
8-Month 		62.6°F
(17.0°C)		 60.0°F
(15.6°C)		 2.6°F
(1.4°C)		 123rd Coolest
Coolest since:
 1904, 1924
6th Warmest
Warmest since:
 2012
Ties: 1987, 2017
Jan–Sep 2016
9-Month 		58.8°F
(14.9°C)		 56.4°F
(13.6°C)		 2.4°F
(1.3°C)		 121st Coolest
Coolest since:
 1979
8th Warmest
Warmest since:
 2012
Dec 2015–Sep 2016
10-Month 		57.2°F
(14.0°C)		 53.9°F
(12.2°C)		 3.3°F
(1.8°C)		 125th Coolest
Coolest since:
 1904
3rd Warmest
Warmest since:
 2012
Nov 2015–Sep 2016
11-Month 		56.4°F
(13.6°C)		 52.9°F
(11.6°C)		 3.5°F
(2.0°C)		 126th Coolest
Coolest since:
 1904
2nd Warmest
Warmest since:
 2012
Oct 2015–Sep 2016
12-Month 		56.4°F
(13.6°C)		 53.1°F
(11.7°C)		 3.3°F
(1.9°C)		 125th Coolest
Coolest since:
 1904
3rd Warmest
Warmest since:
 2012
Apr 2015–Sep 2016
18-Month 		60.5°F
(15.8°C)		 57.9°F
(14.4°C)		 2.6°F
(1.4°C)		 125th Coolest
Coolest since:
 1918
3rd Warmest
Warmest since:
 2012
Oct 2014–Sep 2016
24-Month 		54.3°F
(12.4°C)		 53.0°F
(11.7°C)		 1.3°F
(0.7°C)		 107th Coolest
Coolest since:
 1979
20th Warmest
Warmest since:
 2017
Ties: 1934, 1939, 1988, 2002
Oct 2013–Sep 2016
36-Month 		53.1°F
(11.7°C)		 53.0°F
(11.7°C)		 0.1°F
(0.0°C)		 59th Coolest
Coolest since:
 1979
67th Warmest
Warmest since:
 2018
Ties: 1916, 1947, 1966
Oct 2012–Sep 2016
48-Month 		53.1°F
(11.7°C)		 53.0°F
(11.7°C)		 0.1°F
(0.0°C)		 53rd Coolest
Coolest since:
 1980
72nd Warmest
Warmest since:
 2019
Ties: 1914, 1931, 1948, 1952
Oct 2011–Sep 2016
60-Month 		54.0°F
(12.2°C)		 53.0°F
(11.7°C)		 1.0°F
(0.5°C)		 101st Coolest
Coolest since:
 1982
23rd Warmest
Warmest since:
 2020
Ties: 1923, 1955, 2004, 2014, 2018

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