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 2. Northeast

Average Temperature Rankings, May 2018

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 2018 1-Month	66.2°F (19.0°C)	59.0°F (15.0°C)	7.2°F (4.0°C)	126th Coolest	Coolest since: 2017	1907
May 2018 1-Month	66.2°F (19.0°C)	59.0°F (15.0°C)	7.2°F (4.0°C)	3rd Warmest	Warmest since: 1977	1977
Apr–May 2018 2-Month	53.2°F (11.8°C)	53.3°F (11.8°C)	-0.1°F (0.0°C)	49th Coolest	Coolest since: 2011	1907
	53.2°F (11.8°C)	53.3°F (11.8°C)	-0.1°F (0.0°C)	80th Warmest	Warmest since: 2017	1896, 1977
	Ties: 1951, 1968, 2003, 2011, 2019
Mar–May 2018 3-Month	47.5°F (8.6°C)	47.5°F (8.6°C)	0.0°F (0.0°C)	61st Coolest	Coolest since: 2014	1926
	47.5°F (8.6°C)	47.5°F (8.6°C)	0.0°F (0.0°C)	68th Warmest	Warmest since: 2017	2012
	Ties: 1982
Feb–May 2018 4-Month	42.2°F (5.7°C)	41.9°F (5.5°C)	0.3°F (0.2°C)	74th Coolest	Coolest since: 2015	1904, 1947
	42.2°F (5.7°C)	41.9°F (5.5°C)	0.3°F (0.2°C)	55th Warmest	Warmest since: 2017	2012
	Ties: 1908, 1919, 1941, 2011, 2021
Jan–May 2018 5-Month	38.0°F (3.3°C)	37.7°F (3.2°C)	0.3°F (0.1°C)	69th Coolest	Coolest since: 2015	1912
	38.0°F (3.3°C)	37.7°F (3.2°C)	0.3°F (0.1°C)	60th Warmest	Warmest since: 2017	2012
	Ties: 1906, 1910
Dec 2017–May 2018 6-Month	36.0°F (2.2°C)	35.8°F (2.1°C)	0.2°F (0.1°C)	64th Coolest	Coolest since: 2015	1904
	36.0°F (2.2°C)	35.8°F (2.1°C)	0.2°F (0.1°C)	64th Warmest	Warmest since: 2017	2012
	Ties: 1909, 1913, 1964, 2019
Nov 2017–May 2018 7-Month	36.2°F (2.3°C)	36.1°F (2.3°C)	0.1°F (0.0°C)	65th Coolest	Coolest since: 2015	1904
	36.2°F (2.3°C)	36.1°F (2.3°C)	0.1°F (0.0°C)	63rd Warmest	Warmest since: 2017	2012
	Ties: 1945
Oct 2017–May 2018 8-Month	38.7°F (3.7°C)	38.1°F (3.4°C)	0.6°F (0.3°C)	81st Coolest	Coolest since: 2015	1904
	38.7°F (3.7°C)	38.1°F (3.4°C)	0.6°F (0.3°C)	47th Warmest	Warmest since: 2017	2012
	Ties: 1981
Sep 2017–May 2018 9-Month	41.9°F (5.5°C)	41.0°F (5.0°C)	0.9°F (0.5°C)	91st Coolest	Coolest since: 2015	1904
	41.9°F (5.5°C)	41.0°F (5.0°C)	0.9°F (0.5°C)	37th Warmest	Warmest since: 2017	2012
	Ties: 1896, 1949, 1972
Aug 2017–May 2018 10-Month	44.6°F (7.0°C)	44.0°F (6.7°C)	0.6°F (0.3°C)	83rd Coolest	Coolest since: 2015	1904
	44.6°F (7.0°C)	44.0°F (6.7°C)	0.6°F (0.3°C)	45th Warmest	Warmest since: 2017	2012
	Ties: 1934, 1948, 1953, 1989, 1990
Jul 2017–May 2018 11-Month	47.1°F (8.4°C)	46.6°F (8.1°C)	0.5°F (0.3°C)	78th Coolest	Coolest since: 2015	1904
	47.1°F (8.4°C)	46.6°F (8.1°C)	0.5°F (0.3°C)	50th Warmest	Warmest since: 2017	2012
	Ties: 1900, 1911, 1956, 1957, 2003
Jun 2017–May 2018 12-Month	49.1°F (9.5°C)	48.5°F (9.2°C)	0.6°F (0.3°C)	80th Coolest	Coolest since: 2015	1904
	49.1°F (9.5°C)	48.5°F (9.2°C)	0.6°F (0.3°C)	48th Warmest	Warmest since: 2017	2012
	Ties: 1938, 1957, 1981, 2003
Dec 2016–May 2018 18-Month	45.9°F (7.7°C)	44.2°F (6.8°C)	1.7°F (0.9°C)	108th Coolest	Coolest since: 2015	1905, 1918
	45.9°F (7.7°C)	44.2°F (6.8°C)	1.7°F (0.9°C)	19th Warmest	Warmest since: 2017	2017
	Ties: 1942, 1987
Jun 2016–May 2018 24-Month	50.7°F (10.4°C)	48.4°F (9.1°C)	2.3°F (1.3°C)	118th Coolest	Coolest since: 2016	1905
Jun 2016–May 2018 24-Month	50.7°F (10.4°C)	48.4°F (9.1°C)	2.3°F (1.3°C)	9th Warmest	Warmest since: 2017	2017
Jun 2015–May 2018 36-Month	51.0°F (10.6°C)	48.4°F (9.1°C)	2.6°F (1.5°C)	124th Coolest	Coolest since: 2017	1918
Jun 2015–May 2018 36-Month	51.0°F (10.6°C)	48.4°F (9.1°C)	2.6°F (1.5°C)	2nd Warmest	Warmest since: 2000	2000
Jun 2014–May 2018 48-Month	50.1°F (10.1°C)	48.4°F (9.1°C)	1.7°F (1.0°C)	117th Coolest	Coolest since: 2017	1907
	50.1°F (10.1°C)	48.4°F (9.1°C)	1.7°F (1.0°C)	8th Warmest	Warmest since: 2013	2001
	Ties: 2006, 2020, 2022
Jun 2013–May 2018 60-Month	49.3°F (9.6°C)	48.4°F (9.1°C)	0.9°F (0.5°C)	94th Coolest	Coolest since: 2015	1908
	49.3°F (9.6°C)	48.4°F (9.1°C)	0.9°F (0.5°C)	30th Warmest	Warmest since: 2017	2002
	Ties: 1923, 1942, 1958, 1987, 1988

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings