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, February 2018

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2023)		 Warmest/Coolest
Since		 Record
February 2018
1-Month 		35.8°F
(2.1°C)		 31.5°F
(-0.3°C)		 4.3°F
(2.4°C)		 103rd Coolest
Coolest since:
 1978
27th Warmest
Warmest since:
 2017
Ties: 2002
Jan–Feb 2018
2-Month 		30.6°F
(-0.8°C)		 29.6°F
(-1.3°C)		 1.0°F
(0.5°C)		 73rd Coolest
Coolest since:
 1979
57th Warmest
Warmest since:
 2017
Ties: 1956
Dec 2017–Feb 2018
3-Month 		31.0°F
(-0.6°C)		 30.3°F
(-0.9°C)		 0.7°F
(0.3°C)		 66th Coolest
Coolest since:
 1978
63rd Warmest
Warmest since:
 1932
Ties: 1930, 1943, 1974
Nov 2017–Feb 2018
4-Month 		34.3°F
(1.3°C)		 33.3°F
(0.7°C)		 1.0°F
(0.6°C)		 79th Coolest
Coolest since:
 1977
50th Warmest
Warmest since:
 1932
Ties: 1928
Oct 2017–Feb 2018
5-Month 		39.2°F
(4.0°C)		 37.8°F
(3.2°C)		 1.4°F
(0.8°C)		 92nd Coolest
Coolest since:
 1977
37th Warmest
Warmest since:
 1932
Ties: 1923, 1928, 1941, 1990
Sep 2017–Feb 2018
6-Month 		44.3°F
(6.8°C)		 42.7°F
(5.9°C)		 1.6°F
(0.9°C)		 95th Coolest
Coolest since:
 1977
34th Warmest
Warmest since:
 1932
Ties: 1934, 1947
Aug 2017–Feb 2018
7-Month 		48.1°F
(8.9°C)		 47.2°F
(8.4°C)		 0.9°F
(0.5°C)		 81st Coolest
Coolest since:
 1977
48th Warmest
Warmest since:
 1932
Jul 2017–Feb 2018
8-Month 		51.8°F
(11.0°C)		 50.9°F
(10.5°C)		 0.9°F
(0.5°C)		 86th Coolest
Coolest since:
 1977
43rd Warmest
Warmest since:
 1932
Ties: 1941
Jun 2017–Feb 2018
9-Month 		54.1°F
(12.3°C)		 53.3°F
(11.8°C)		 0.8°F
(0.5°C)		 84th Coolest
Coolest since:
 1977
45th Warmest
Warmest since:
 1932
Ties: 1901, 1983, 1987
May 2017–Feb 2018
10-Month 		55.1°F
(12.8°C)		 54.3°F
(12.4°C)		 0.8°F
(0.4°C)		 84th Coolest
Coolest since:
 1977
45th Warmest
Warmest since:
 1932
Ties: 1988
Apr 2017–Feb 2018
11-Month 		55.3°F
(12.9°C)		 54.1°F
(12.3°C)		 1.2°F
(0.6°C)		 97th Coolest
Coolest since:
 1918
32nd Warmest
Warmest since:
 1932
Ties: 1915, 2019
Mar 2017–Feb 2018
12-Month 		54.5°F
(12.5°C)		 53.1°F
(11.7°C)		 1.4°F
(0.8°C)		 103rd Coolest
Coolest since:
 1918
26th Warmest
Warmest since:
 2017
Ties: 1931, 1974, 1987
Sep 2016–Feb 2018
18-Month 		52.4°F
(11.3°C)		 49.6°F
(9.8°C)		 2.8°F
(1.5°C)		 124th Coolest
Coolest since:
 1905
4th Warmest
Warmest since:
 2017
Mar 2016–Feb 2018
24-Month 		55.7°F
(13.2°C)		 53.1°F
(11.7°C)		 2.6°F
(1.5°C)		 125th Coolest
Coolest since:
 1905
3rd Warmest
Warmest since:
 2013, 2017
Mar 2015–Feb 2018
36-Month 		55.5°F
(13.1°C)		 53.0°F
(11.7°C)		 2.5°F
(1.4°C)		 125th Coolest
Coolest since:
 1979
2nd Warmest
Warmest since:
 2013
Mar 2014–Feb 2018
48-Month 		54.5°F
(12.5°C)		 53.0°F
(11.7°C)		 1.5°F
(0.8°C)		 118th Coolest
Coolest since:
 1980
8th Warmest
Warmest since:
 2019
Ties: 1956, 1957, 2014, 2023
Mar 2013–Feb 2018
60-Month 		53.8°F
(12.1°C)		 53.0°F
(11.7°C)		 0.8°F
(0.4°C)		 90th Coolest
Coolest since:
 1981
35th Warmest
Warmest since:
 2020
Ties: 1924, 2001

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