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, October 2018

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
October 2018
1-Month 		56.2°F
(13.4°C)		 55.7°F
(13.2°C)		 0.5°F
(0.2°C)		 75th Coolest
Coolest since:
 1925
54th Warmest
Warmest since:
 1963
Ties: 1901, 1986
Sep–Oct 2018
2-Month 		64.1°F
(17.8°C)		 61.6°F
(16.4°C)		 2.5°F
(1.4°C)		 107th Coolest
Coolest since:
 1917
22nd Warmest
Warmest since:
 1971, 2016
Ties: 1933, 2005
Aug–Oct 2018
3-Month 		67.7°F
(19.8°C)		 65.8°F
(18.8°C)		 1.9°F
(1.0°C)		 110th Coolest
Coolest since:
 1976
19th Warmest
Warmest since:
 1947, 2007
Ties: 1922, 1939, 1953
Jul–Oct 2018
4-Month 		69.7°F
(20.9°C)		 68.4°F
(20.2°C)		 1.3°F
(0.7°C)		 99th Coolest
Coolest since:
 1967
30th Warmest
Warmest since:
 1936
Ties: 1930, 1991
Jun–Oct 2018
5-Month 		70.9°F
(21.6°C)		 69.2°F
(20.7°C)		 1.7°F
(0.9°C)		 108th Coolest
Coolest since:
 1917
21st Warmest
Warmest since:
 1936
Ties: 1913, 1991, 1998
May–Oct 2018
6-Month 		71.2°F
(21.8°C)		 68.2°F
(20.1°C)		 3.0°F
(1.7°C)		 126th Coolest
Coolest since:
 1917
3rd Warmest
Warmest since:
 1936
Apr–Oct 2018
7-Month 		67.7°F
(19.8°C)		 66.0°F
(18.9°C)		 1.7°F
(0.9°C)		 113th Coolest
Coolest since:
 1907
16th Warmest
Warmest since:
 2010
Ties: 1931, 1955
Mar–Oct 2018
8-Month 		64.3°F
(17.9°C)		 63.0°F
(17.2°C)		 1.3°F
(0.7°C)		 106th Coolest
Coolest since:
 1917
23rd Warmest
Warmest since:
 2012
Ties: 1914, 1987, 2011
Feb–Oct 2018
9-Month 		61.1°F
(16.2°C)		 59.5°F
(15.3°C)		 1.6°F
(0.9°C)		 113th Coolest
Coolest since:
 1917
16th Warmest
Warmest since:
 2012
Jan–Oct 2018
10-Month 		57.5°F
(14.2°C)		 56.3°F
(13.5°C)		 1.2°F
(0.7°C)		 96th Coolest
Coolest since:
 1979
33rd Warmest
Warmest since:
 2012
Ties: 1999
Dec 2017–Oct 2018
11-Month 		55.2°F
(12.9°C)		 54.0°F
(12.2°C)		 1.2°F
(0.7°C)		 94th Coolest
Coolest since:
 1904
34th Warmest
Warmest since:
 2012
Ties: 1973, 2019
Nov 2017–Oct 2018
12-Month 		54.3°F
(12.4°C)		 53.1°F
(11.7°C)		 1.2°F
(0.7°C)		 97th Coolest
Coolest since:
 1904
31st Warmest
Warmest since:
 2012
May 2017–Oct 2018
18-Month 		59.2°F
(15.1°C)		 58.1°F
(14.5°C)		 1.1°F
(0.6°C)		 99th Coolest
Coolest since:
 1904
29th Warmest
Warmest since:
 2012
Ties: 1933, 1992
Nov 2016–Oct 2018
24-Month 		55.2°F
(12.9°C)		 53.1°F
(11.7°C)		 2.1°F
(1.2°C)		 121st Coolest
Coolest since:
 1979
6th Warmest
Warmest since:
 2017
Ties: 1999
Nov 2015–Oct 2018
36-Month 		55.7°F
(13.2°C)		 53.0°F
(11.7°C)		 2.7°F
(1.5°C)		 125th Coolest
Coolest since:
 1979
1st Warmest
Warmest to Date
 2018
Nov 2014–Oct 2018
48-Month 		54.9°F
(12.7°C)		 53.0°F
(11.7°C)		 1.9°F
(1.0°C)		 122nd Coolest
Coolest since:
 1905, 1980
3rd Warmest
Warmest since:
 2019
Ties: 2013
Nov 2013–Oct 2018
60-Month 		54.0°F
(12.2°C)		 53.0°F
(11.7°C)		 1.0°F
(0.5°C)		 102nd Coolest
Coolest since:
 1982
22nd Warmest
Warmest since:
 2020
Ties: 1992, 2001, 2004, 2005, 2011, 2014

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