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 5. East

Average Temperature Rankings, July 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
July 2018 1-Month	73.7°F (23.2°C)	74.4°F (23.6°C)	-0.7°F (-0.4°C)	55th Coolest	Coolest since: 2015	2014
	73.7°F (23.2°C)	74.4°F (23.6°C)	-0.7°F (-0.4°C)	74th Warmest	Warmest since: 2017	1936
	Ties: 1896, 1903, 1937
Jun–Jul 2018 2-Month	73.8°F (23.2°C)	72.4°F (22.4°C)	1.4°F (0.8°C)	95th Coolest	Coolest since: 2017	1958
Jun–Jul 2018 2-Month	73.8°F (23.2°C)	72.4°F (22.4°C)	1.4°F (0.8°C)	34th Warmest	Warmest since: 2016	1934
May–Jul 2018 3-Month	72.5°F (22.5°C)	68.6°F (20.3°C)	3.9°F (2.2°C)	125th Coolest	Coolest since: 2017	1924
May–Jul 2018 3-Month	72.5°F (22.5°C)	68.6°F (20.3°C)	3.9°F (2.2°C)	4th Warmest	Warmest since: 2012	1934
Apr–Jul 2018 4-Month	65.3°F (18.5°C)	63.9°F (17.7°C)	1.4°F (0.8°C)	96th Coolest	Coolest since: 2016	1907
Apr–Jul 2018 4-Month	65.3°F (18.5°C)	63.9°F (17.7°C)	1.4°F (0.8°C)	33rd Warmest	Warmest since: 2017	1991
Mar–Jul 2018 5-Month	59.6°F (15.3°C)	58.8°F (14.9°C)	0.8°F (0.4°C)	82nd Coolest	Coolest since: 2015	1960
	59.6°F (15.3°C)	58.8°F (14.9°C)	0.8°F (0.4°C)	47th Warmest	Warmest since: 2017	2012
	Ties: 1919, 1995
Feb–Jul 2018 6-Month	54.8°F (12.7°C)	53.6°F (12.0°C)	1.2°F (0.7°C)	94th Coolest	Coolest since: 2015	1904, 1947
	54.8°F (12.7°C)	53.6°F (12.0°C)	1.2°F (0.7°C)	35th Warmest	Warmest since: 2017	2012
	Ties: 1896, 1931, 1934, 2002
Jan–Jul 2018 7-Month	50.1°F (10.1°C)	49.3°F (9.6°C)	0.8°F (0.5°C)	80th Coolest	Coolest since: 2015	1912
	50.1°F (10.1°C)	49.3°F (9.6°C)	0.8°F (0.5°C)	49th Warmest	Warmest since: 2017	2012
	Ties: 1974, 2021
Dec 2017–Jul 2018 8-Month	47.4°F (8.6°C)	46.7°F (8.2°C)	0.7°F (0.4°C)	76th Coolest	Coolest since: 2015	1904
Dec 2017–Jul 2018 8-Month	47.4°F (8.6°C)	46.7°F (8.2°C)	0.7°F (0.4°C)	52nd Warmest	Warmest since: 2017	2012
Nov 2017–Jul 2018 9-Month	46.6°F (8.1°C)	45.9°F (7.7°C)	0.7°F (0.4°C)	82nd Coolest	Coolest since: 2015	1904
	46.6°F (8.1°C)	45.9°F (7.7°C)	0.7°F (0.4°C)	46th Warmest	Warmest since: 2017	2012
	Ties: 1952
Oct 2017–Jul 2018 10-Month	47.7°F (8.7°C)	46.7°F (8.2°C)	1.0°F (0.5°C)	89th Coolest	Coolest since: 2015	1904
	47.7°F (8.7°C)	46.7°F (8.2°C)	1.0°F (0.5°C)	39th Warmest	Warmest since: 2017	2012
	Ties: 1941, 1974, 1988
Sep 2017–Jul 2018 11-Month	49.6°F (9.8°C)	48.3°F (9.1°C)	1.3°F (0.7°C)	100th Coolest	Coolest since: 2015	1904
	49.6°F (9.8°C)	48.3°F (9.1°C)	1.3°F (0.7°C)	28th Warmest	Warmest since: 2017	2012
	Ties: 1931
Aug 2017–Jul 2018 12-Month	51.2°F (10.7°C)	50.3°F (10.2°C)	0.9°F (0.5°C)	88th Coolest	Coolest since: 2015	1904
	51.2°F (10.7°C)	50.3°F (10.2°C)	0.9°F (0.5°C)	40th Warmest	Warmest since: 2017	2012
	Ties: 1941, 1948, 1957, 2011
Feb 2017–Jul 2018 18-Month	53.3°F (11.8°C)	51.4°F (10.8°C)	1.9°F (1.0°C)	110th Coolest	Coolest since: 2015	1918
Feb 2017–Jul 2018 18-Month	53.3°F (11.8°C)	51.4°F (10.8°C)	1.9°F (1.0°C)	18th Warmest	Warmest since: 2017	2012, 2017
Aug 2016–Jul 2018 24-Month	52.9°F (11.6°C)	50.3°F (10.2°C)	2.6°F (1.4°C)	123rd Coolest	Coolest since: 2016	1905
	52.9°F (11.6°C)	50.3°F (10.2°C)	2.6°F (1.4°C)	4th Warmest	Warmest since: 2017	2017
	Ties: 2013
Aug 2015–Jul 2018 36-Month	53.2°F (11.8°C)	50.3°F (10.2°C)	2.9°F (1.6°C)	125th Coolest	Coolest since: 2017	1904, 1905, 1906
Aug 2015–Jul 2018 36-Month	53.2°F (11.8°C)	50.3°F (10.2°C)	2.9°F (1.6°C)	1st Warmest	Warmest to Date	2018
Aug 2014–Jul 2018 48-Month	52.3°F (11.3°C)	50.3°F (10.2°C)	2.0°F (1.1°C)	123rd Coolest	Coolest since: 2017	1905
Aug 2014–Jul 2018 48-Month	52.3°F (11.3°C)	50.3°F (10.2°C)	2.0°F (1.1°C)	2nd Warmest	Warmest to Date	2019
Aug 2013–Jul 2018 60-Month	51.5°F (10.8°C)	50.3°F (10.2°C)	1.2°F (0.6°C)	106th Coolest	Coolest since: 2017	1906
	51.5°F (10.8°C)	50.3°F (10.2°C)	1.2°F (0.6°C)	18th Warmest	Warmest since: 2016	2020
	Ties: 1956, 1992, 2004, 2005, 2010, 2016

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings