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 2002

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 2002
1-Month 		67.2°F
(19.6°C)		 63.7°F
(17.6°C)		 3.5°F
(2.0°C)		 109th Coolest
Coolest since:
 1918
20th Warmest
Warmest since:
 1897
Aug–Sep 2002
2-Month 		70.0°F
(21.1°C)		 67.4°F
(19.7°C)		 2.6°F
(1.4°C)		 112th Coolest
Coolest since:
 1902
17th Warmest
Warmest since:
 1947
Ties: 1978
Jul–Sep 2002
3-Month 		72.1°F
(22.3°C)		 69.3°F
(20.7°C)		 2.8°F
(1.6°C)		 120th Coolest
Coolest since:
 1924
9th Warmest
Warmest since:
 1936
Jun–Sep 2002
4-Month 		71.9°F
(22.2°C)		 69.2°F
(20.7°C)		 2.7°F
(1.5°C)		 120th Coolest
Coolest since:
 1915
9th Warmest
Warmest since:
 2005
May–Sep 2002
5-Month 		68.5°F
(20.3°C)		 67.1°F
(19.5°C)		 1.4°F
(0.8°C)		 99th Coolest
Coolest since:
 1924
30th Warmest
Warmest since:
 1921, 1988
Ties: 1977, 1999, 2020
Apr–Sep 2002
6-Month 		65.4°F
(18.6°C)		 63.9°F
(17.7°C)		 1.5°F
(0.9°C)		 106th Coolest
Coolest since:
 1907
23rd Warmest
Warmest since:
 1921
Ties: 1922, 1925, 1931, 2001
Mar–Sep 2002
7-Month 		60.9°F
(16.1°C)		 59.9°F
(15.5°C)		 1.0°F
(0.6°C)		 91st Coolest
Coolest since:
 1924
38th Warmest
Warmest since:
 2012
Ties: 1895, 1896, 1910, 2001
Feb–Sep 2002
8-Month 		57.2°F
(14.0°C)		 55.5°F
(13.1°C)		 1.7°F
(0.9°C)		 110th Coolest
Coolest since:
 1904, 1917
19th Warmest
Warmest since:
 2012
Ties: 1911, 2020, 2021
Jan–Sep 2002
9-Month 		54.3°F
(12.4°C)		 51.7°F
(10.9°C)		 2.6°F
(1.5°C)		 119th Coolest
Coolest since:
 1904, 1912
10th Warmest
Warmest since:
 2012
Ties: 2010
Dec 2001–Sep 2002
10-Month 		52.2°F
(11.2°C)		 49.1°F
(9.5°C)		 3.1°F
(1.7°C)		 122nd Coolest
Coolest since:
 1904
6th Warmest
Warmest since:
 2012
Nov 2001–Sep 2002
11-Month 		51.8°F
(11.0°C)		 48.1°F
(8.9°C)		 3.7°F
(2.1°C)		 124th Coolest
Coolest since:
 1904
4th Warmest
Warmest since:
 2012
Oct 2001–Sep 2002
12-Month 		51.8°F
(11.0°C)		 48.5°F
(9.2°C)		 3.3°F
(1.8°C)		 124th Coolest
Coolest since:
 1904
4th Warmest
Warmest since:
 2012
Ties: 1998
Apr 2001–Sep 2002
18-Month 		56.3°F
(13.5°C)		 53.6°F
(12.0°C)		 2.7°F
(1.5°C)		 124th Coolest
Coolest since:
 1904
4th Warmest
Warmest to Date
 2012
Oct 2000–Sep 2002
24-Month 		50.2°F
(10.1°C)		 48.5°F
(9.2°C)		 1.7°F
(0.9°C)		 109th Coolest
Coolest since:
 1918
18th Warmest
Warmest since:
 2017
Ties: 2016
Oct 1999–Sep 2002
36-Month 		50.5°F
(10.3°C)		 48.4°F
(9.1°C)		 2.1°F
(1.2°C)		 119th Coolest
Coolest since:
 1979
7th Warmest
Warmest since:
 2000
Ties: 2013
Oct 1998–Sep 2002
48-Month 		50.6°F
(10.3°C)		 48.4°F
(9.1°C)		 2.2°F
(1.2°C)		 124th Coolest
Coolest since:
 1905, 1918
1st Warmest
Warmest since:
 2001, 2002, 2019
Ties: 2001, 2019
Oct 1997–Sep 2002
60-Month 		50.9°F
(10.5°C)		 48.4°F
(9.1°C)		 2.5°F
(1.4°C)		 123rd Coolest
Coolest since:
 1905, 1906
1st Warmest
Warmest to Date
 2002

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