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, January 2021

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
January 2021
1-Month		31.3°F
(-0.4°C)		27.7°F
(-2.4°C)		3.6°F
(2.0°C)		93rd Coolest
Coolest since:
1977
37th Warmest
Warmest since:
2006
Ties: 1964
Dec 2020–Jan 2021
2-Month		33.0°F
(0.6°C)		29.7°F
(-1.3°C)		3.3°F
(1.9°C)		97th Coolest
Coolest since:
1918
32nd Warmest
Warmest since:
1932
Nov 2020–Jan 2021
3-Month		38.0°F
(3.3°C)		33.9°F
(1.1°C)		4.1°F
(2.2°C)		116th Coolest
Coolest since:
1977
13th Warmest
Warmest since:
1932
Oct 2020–Jan 2021
4-Month		42.0°F
(5.6°C)		39.4°F
(4.1°C)		2.6°F
(1.5°C)		107th Coolest
Coolest since:
1977
22nd Warmest
Warmest since:
1932
Ties: 1941, 2007
Sep 2020–Jan 2021
5-Month		47.0°F
(8.3°C)		45.0°F
(7.2°C)		2.0°F
(1.1°C)		103rd Coolest
Coolest since:
1977
26th Warmest
Warmest since:
1932
Ties: 1954
Aug 2020–Jan 2021
6-Month		51.3°F
(10.7°C)		49.9°F
(9.9°C)		1.4°F
(0.8°C)		95th Coolest
Coolest since:
1977
34th Warmest
Warmest since:
1932
Ties: 1900, 1907, 2007
Jul 2020–Jan 2021
7-Month		55.0°F
(12.8°C)		53.6°F
(12.0°C)		1.4°F
(0.8°C)		96th Coolest
Coolest since:
1977
33rd Warmest
Warmest since:
1932
Ties: 2007
Jun 2020–Jan 2021
8-Month		57.4°F
(14.1°C)		56.0°F
(13.3°C)		1.4°F
(0.8°C)		99th Coolest
Coolest since:
1977
30th Warmest
Warmest since:
1932
Ties: 1941, 1947
May 2020–Jan 2021
9-Month		57.8°F
(14.3°C)		56.8°F
(13.8°C)		1.0°F
(0.5°C)		92nd Coolest
Coolest since:
1918, 1977
37th Warmest
Warmest since:
1932
Ties: 1995, 2011
Apr 2020–Jan 2021
10-Month		57.1°F
(13.9°C)		56.4°F
(13.6°C)		0.7°F
(0.3°C)		81st Coolest
Coolest since:
1918
48th Warmest
Warmest since:
1932
Ties: 1909, 1915
Mar 2020–Jan 2021
11-Month		56.1°F
(13.4°C)		55.0°F
(12.8°C)		1.1°F
(0.6°C)		93rd Coolest
Coolest since:
1918
36th Warmest
Warmest since:
2013
Ties: 1901, 1909, 1931, 1949, 1960, 1995
Feb 2020–Jan 2021
12-Month		54.3°F
(12.4°C)		53.1°F
(11.7°C)		1.2°F
(0.7°C)		100th Coolest
Coolest since:
1918
29th Warmest
Warmest since:
2013
Ties: 1937, 1974, 2019, 2020
Aug 2019–Jan 2021
18-Month		53.4°F
(11.9°C)		52.0°F
(11.1°C)		1.4°F
(0.8°C)		107th Coolest
Coolest since:
1905
21st Warmest
Warmest since:
2013
Ties: 1914, 1934, 1935, 1939, 2022
Feb 2019–Jan 2021
24-Month		54.3°F
(12.4°C)		53.1°F
(11.7°C)		1.2°F
(0.7°C)		100th Coolest
Coolest since:
1918
28th Warmest
Warmest since:
2013
Ties: 1940, 2020
Feb 2018–Jan 2021
36-Month		54.3°F
(12.4°C)		53.0°F
(11.7°C)		1.3°F
(0.7°C)		105th Coolest
Coolest since:
1905
22nd Warmest
Warmest since:
2013
Ties: 1935, 1957, 2022
Feb 2017–Jan 2021
48-Month		54.5°F
(12.5°C)		53.0°F
(11.7°C)		1.5°F
(0.8°C)		116th Coolest
Coolest since:
1905
10th Warmest
Warmest since:
1934, 2013, 2020
Ties: 1957, 2007
Feb 2016–Jan 2021
60-Month		54.8°F
(12.7°C)		53.0°F
(11.7°C)		1.8°F
(1.0°C)		124th Coolest
Coolest since:
1981
1st Warmest
Warmest since:
1935, 2020, 2021
Ties: 1935, 2020

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