Divisional Rankings

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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, May 2018

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Record Coolest

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 2018 1-Month	72.4°F (22.4°C)	63.2°F (17.3°C)	9.2°F (5.1°C)	128th Coolest	Coolest since: 2017	1924
May 2018 1-Month	72.4°F (22.4°C)	63.2°F (17.3°C)	9.2°F (5.1°C)	1st Warmest	Warmest to Date	2018
Apr–May 2018 2-Month	59.5°F (15.3°C)	58.0°F (14.4°C)	1.5°F (0.9°C)	94th Coolest	Coolest since: 2016	1907
Apr–May 2018 2-Month	59.5°F (15.3°C)	58.0°F (14.4°C)	1.5°F (0.9°C)	35th Warmest	Warmest since: 2017	1896
Mar–May 2018 3-Month	53.2°F (11.8°C)	52.5°F (11.4°C)	0.7°F (0.4°C)	74th Coolest	Coolest since: 2014	1960
	53.2°F (11.8°C)	52.5°F (11.4°C)	0.7°F (0.4°C)	55th Warmest	Warmest since: 2017	2012
	Ties: 1970
Feb–May 2018 4-Month	48.8°F (9.3°C)	47.2°F (8.4°C)	1.6°F (0.9°C)	93rd Coolest	Coolest since: 2015	1978
	48.8°F (9.3°C)	47.2°F (8.4°C)	1.6°F (0.9°C)	36th Warmest	Warmest since: 2017	2012
	Ties: 1953, 1985
Jan–May 2018 5-Month	44.1°F (6.7°C)	43.3°F (6.3°C)	0.8°F (0.4°C)	78th Coolest	Coolest since: 2015	1978
	44.1°F (6.7°C)	43.3°F (6.3°C)	0.8°F (0.4°C)	51st Warmest	Warmest since: 2017	2012
	Ties: 1931, 1950, 1967, 1995
Dec 2017–May 2018 6-Month	42.1°F (5.6°C)	41.4°F (5.2°C)	0.7°F (0.4°C)	75th Coolest	Coolest since: 2015	1978
	42.1°F (5.6°C)	41.4°F (5.2°C)	0.7°F (0.4°C)	53rd Warmest	Warmest since: 2017	2012
	Ties: 1967, 2010
Nov 2017–May 2018 7-Month	42.4°F (5.8°C)	41.6°F (5.3°C)	0.8°F (0.5°C)	83rd Coolest	Coolest since: 2015	1978
	42.4°F (5.8°C)	41.6°F (5.3°C)	0.8°F (0.5°C)	45th Warmest	Warmest since: 2017	2012
	Ties: 1925, 1967, 2013
Oct 2017–May 2018 8-Month	44.4°F (6.9°C)	43.3°F (6.3°C)	1.1°F (0.6°C)	87th Coolest	Coolest since: 2015	1978
	44.4°F (6.9°C)	43.3°F (6.3°C)	1.1°F (0.6°C)	41st Warmest	Warmest since: 2017	2012
	Ties: 2021
Sep 2017–May 2018 9-Month	47.2°F (8.4°C)	45.9°F (7.7°C)	1.3°F (0.7°C)	98th Coolest	Coolest since: 2015	1978
Sep 2017–May 2018 9-Month	47.2°F (8.4°C)	45.9°F (7.7°C)	1.3°F (0.7°C)	30th Warmest	Warmest since: 2017	2012
Aug 2017–May 2018 10-Month	49.7°F (9.8°C)	48.9°F (9.4°C)	0.8°F (0.4°C)	92nd Coolest	Coolest since: 2015	1978
	49.7°F (9.8°C)	48.9°F (9.4°C)	0.8°F (0.4°C)	36th Warmest	Warmest since: 2017	2012
	Ties: 1934, 1938, 1953
Jul 2017–May 2018 11-Month	52.2°F (11.2°C)	51.4°F (10.8°C)	0.8°F (0.4°C)	92nd Coolest	Coolest since: 2015	1904
	52.2°F (11.2°C)	51.4°F (10.8°C)	0.8°F (0.4°C)	36th Warmest	Warmest since: 2017	2012
	Ties: 1919, 1941, 1950, 2011
Jun 2017–May 2018 12-Month	53.9°F (12.2°C)	53.1°F (11.7°C)	0.8°F (0.5°C)	89th Coolest	Coolest since: 2015	1904
	53.9°F (12.2°C)	53.1°F (11.7°C)	0.8°F (0.5°C)	39th Warmest	Warmest since: 2017	2012
	Ties: 1985, 2005, 2013
Dec 2016–May 2018 18-Month	51.2°F (10.7°C)	49.2°F (9.6°C)	2.0°F (1.1°C)	115th Coolest	Coolest since: 2016	1979
Dec 2016–May 2018 18-Month	51.2°F (10.7°C)	49.2°F (9.6°C)	2.0°F (1.1°C)	12th Warmest	Warmest since: 2017	2017
Jun 2016–May 2018 24-Month	55.4°F (13.0°C)	53.0°F (11.7°C)	2.4°F (1.3°C)	123rd Coolest	Coolest since: 2016	1905, 1978
	55.4°F (13.0°C)	53.0°F (11.7°C)	2.4°F (1.3°C)	4th Warmest	Warmest since: 2017	2017
	Ties: 1955, 2000
Jun 2015–May 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: 2017	1979
Jun 2015–May 2018 36-Month	55.5°F (13.1°C)	53.0°F (11.7°C)	2.5°F (1.4°C)	1st Warmest	Warmest to Date	2018
Jun 2014–May 2018 48-Month	54.6°F (12.6°C)	53.1°F (11.7°C)	1.5°F (0.9°C)	120th Coolest	Coolest since: 2017	1980
	54.6°F (12.6°C)	53.1°F (11.7°C)	1.5°F (0.9°C)	5th Warmest	Warmest since: 2013	2019
	Ties: 1934, 1956, 2007, 2012
Jun 2013–May 2018 60-Month	53.9°F (12.2°C)	53.1°F (11.7°C)	0.8°F (0.5°C)	97th Coolest	Coolest since: 2017	1981
	53.9°F (12.2°C)	53.1°F (11.7°C)	0.8°F (0.5°C)	27th Warmest	Warmest since: 2017	2020
	Ties: 2000, 2017

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings