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 2. Northeast

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 		68.9°F
(20.5°C)		 63.7°F
(17.6°C)		 5.2°F
(2.9°C)		 125th Coolest
Coolest since:
 1918
4th Warmest
Warmest since:
 1897
Ties: 1925
Aug–Sep 2016
2-Month 		71.6°F
(22.0°C)		 67.4°F
(19.7°C)		 4.2°F
(2.3°C)		 127th Coolest
Coolest since:
 1902
2nd Warmest
Warmest since:
 1947
Jul–Sep 2016
3-Month 		72.4°F
(22.4°C)		 69.3°F
(20.7°C)		 3.1°F
(1.7°C)		 124th Coolest
Coolest since:
 1924
5th Warmest
Warmest since:
 1936
Ties: 2005
Jun–Sep 2016
4-Month 		72.1°F
(22.3°C)		 69.2°F
(20.7°C)		 2.9°F
(1.6°C)		 123rd Coolest
Coolest since:
 1915
6th Warmest
Warmest since:
 2005
Ties: 2021
May–Sep 2016
5-Month 		69.6°F
(20.9°C)		 67.1°F
(19.5°C)		 2.5°F
(1.4°C)		 117th Coolest
Coolest since:
 1924
12th Warmest
Warmest since:
 1921, 1988
Ties: 1987, 2010
Apr–Sep 2016
6-Month 		66.1°F
(18.9°C)		 63.9°F
(17.7°C)		 2.2°F
(1.2°C)		 116th Coolest
Coolest since:
 1907
13th Warmest
Warmest since:
 1921
Ties: 1959, 1977
Mar–Sep 2016
7-Month 		62.8°F
(17.1°C)		 59.9°F
(15.5°C)		 2.9°F
(1.6°C)		 123rd Coolest
Coolest since:
 1924
6th Warmest
Warmest since:
 2012
Ties: 1977, 1987
Feb–Sep 2016
8-Month 		58.7°F
(14.8°C)		 55.5°F
(13.1°C)		 3.2°F
(1.7°C)		 123rd Coolest
Coolest since:
 1904, 1917
6th Warmest
Warmest since:
 2012
Ties: 2010
Jan–Sep 2016
9-Month 		54.8°F
(12.7°C)		 51.7°F
(10.9°C)		 3.1°F
(1.8°C)		 124th Coolest
Coolest since:
 1904, 1912
5th Warmest
Warmest since:
 2012
Dec 2015–Sep 2016
10-Month 		53.2°F
(11.8°C)		 49.1°F
(9.5°C)		 4.1°F
(2.3°C)		 124th Coolest
Coolest since:
 1904
4th Warmest
Warmest since:
 2012
Nov 2015–Sep 2016
11-Month 		52.3°F
(11.3°C)		 48.1°F
(8.9°C)		 4.2°F
(2.4°C)		 126th Coolest
Coolest since:
 1904
2nd Warmest
Warmest since:
 2012
Oct 2015–Sep 2016
12-Month 		52.4°F
(11.3°C)		 48.4°F
(9.1°C)		 4.0°F
(2.2°C)		 125th Coolest
Coolest since:
 1904
3rd Warmest
Warmest since:
 2012
Apr 2015–Sep 2016
18-Month 		56.6°F
(13.7°C)		 53.6°F
(12.0°C)		 3.0°F
(1.7°C)		 126th Coolest
Coolest since:
 1904
2nd Warmest
Warmest since:
 2012
Oct 2014–Sep 2016
24-Month 		50.1°F
(10.1°C)		 48.4°F
(9.1°C)		 1.7°F
(1.0°C)		 108th Coolest
Coolest since:
 1918
19th Warmest
Warmest since:
 2017
Ties: 1954
Oct 2013–Sep 2016
36-Month 		48.7°F
(9.3°C)		 48.5°F
(9.2°C)		 0.2°F
(0.1°C)		 73rd Coolest
Coolest since:
 1979
53rd Warmest
Warmest since:
 2000
Ties: 1931, 1949, 1973, 1983
Oct 2012–Sep 2016
48-Month 		48.8°F
(9.3°C)		 48.4°F
(9.1°C)		 0.4°F
(0.2°C)		 76th Coolest
Coolest since:
 1905, 1918
49th Warmest
Warmest since:
 2001, 2002, 2019
Ties: 1995
Oct 2011–Sep 2016
60-Month 		49.7°F
(9.8°C)		 48.4°F
(9.1°C)		 1.3°F
(0.7°C)		 108th Coolest
Coolest since:
 1905, 1906
16th Warmest
Warmest since:
 2002
Ties: 1934, 1935, 2009

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