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, May 1990

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1990 1-Month	58.1°F (14.5°C)	61.0°F (16.1°C)	-2.9°F (-1.6°C)	29th Coolest	Coolest since: 1983	1907
May 1990 1-Month	58.1°F (14.5°C)	61.0°F (16.1°C)	-2.9°F (-1.6°C)	100th Warmest	Warmest since: 1989	2018
Apr–May 1990 2-Month	54.0°F (12.2°C)	55.4°F (13.0°C)	-1.4°F (-0.8°C)	29th Coolest	Coolest since: 1984	1907
	54.0°F (12.2°C)	55.4°F (13.0°C)	-1.4°F (-0.8°C)	100th Warmest	Warmest since: 1989	1977
	Ties: 1898
Mar–May 1990 3-Month	50.6°F (10.3°C)	49.7°F (9.8°C)	0.9°F (0.5°C)	82nd Coolest	Coolest since: 1989	1960
	50.6°F (10.3°C)	49.7°F (9.8°C)	0.9°F (0.5°C)	47th Warmest	Warmest since: 1988	2012
	Ties: 1911, 1962
Feb–May 1990 4-Month	46.5°F (8.1°C)	44.2°F (6.8°C)	2.3°F (1.3°C)	106th Coolest	Coolest since: 1989	1978
	46.5°F (8.1°C)	44.2°F (6.8°C)	2.3°F (1.3°C)	23rd Warmest	Warmest since: 1987	2012
	Ties: 1927, 1986
Jan–May 1990 5-Month	44.3°F (6.8°C)	40.1°F (4.5°C)	4.2°F (2.3°C)	123rd Coolest	Coolest since: 1989	1978
Jan–May 1990 5-Month	44.3°F (6.8°C)	40.1°F (4.5°C)	4.2°F (2.3°C)	6th Warmest	Warmest since: 1921	2012
Dec 1989–May 1990 6-Month	39.6°F (4.2°C)	38.1°F (3.4°C)	1.5°F (0.8°C)	93rd Coolest	Coolest since: 1989	1978
	39.6°F (4.2°C)	38.1°F (3.4°C)	1.5°F (0.8°C)	35th Warmest	Warmest since: 1987	2012
	Ties: 1941, 1973
Nov 1989–May 1990 7-Month	39.5°F (4.2°C)	38.3°F (3.5°C)	1.2°F (0.7°C)	90th Coolest	Coolest since: 1989	1904
	39.5°F (4.2°C)	38.3°F (3.5°C)	1.2°F (0.7°C)	38th Warmest	Warmest since: 1988	2012
	Ties: 1914, 1931
Oct 1989–May 1990 8-Month	41.4°F (5.2°C)	40.2°F (4.6°C)	1.2°F (0.6°C)	92nd Coolest	Coolest since: 1989	1904
	41.4°F (5.2°C)	40.2°F (4.6°C)	1.2°F (0.6°C)	36th Warmest	Warmest since: 1987	2012
	Ties: 1922, 1941, 2013
Sep 1989–May 1990 9-Month	43.7°F (6.5°C)	42.9°F (6.1°C)	0.8°F (0.4°C)	81st Coolest	Coolest since: 1989	1904
Sep 1989–May 1990 9-Month	43.7°F (6.5°C)	42.9°F (6.1°C)	0.8°F (0.4°C)	47th Warmest	Warmest since: 1987	2012
Aug 1989–May 1990 10-Month	46.5°F (8.1°C)	45.9°F (7.7°C)	0.6°F (0.4°C)	80th Coolest	Coolest since: 1989	1904
	46.5°F (8.1°C)	45.9°F (7.7°C)	0.6°F (0.4°C)	48th Warmest	Warmest since: 1989	2012
	Ties: 1964, 1986, 1988, 1989, 2019
Jul 1989–May 1990 11-Month	49.1°F (9.5°C)	48.5°F (9.2°C)	0.6°F (0.3°C)	79th Coolest	Coolest since: 1986	1904
	49.1°F (9.5°C)	48.5°F (9.2°C)	0.6°F (0.3°C)	49th Warmest	Warmest since: 1989	2012
	Ties: 1948, 1956, 2011
Jun 1989–May 1990 12-Month	50.8°F (10.4°C)	50.3°F (10.2°C)	0.5°F (0.2°C)	75th Coolest	Coolest since: 1986	1904
	50.8°F (10.4°C)	50.3°F (10.2°C)	0.5°F (0.2°C)	53rd Warmest	Warmest since: 1989	2012
	Ties: 1896, 1933, 1945, 1964
Dec 1988–May 1990 18-Month	46.8°F (8.2°C)	46.3°F (7.9°C)	0.5°F (0.3°C)	80th Coolest	Coolest since: 1985	1905
	46.8°F (8.2°C)	46.3°F (7.9°C)	0.5°F (0.3°C)	47th Warmest	Warmest since: 1989	2017
	Ties: 1923, 1972, 1995
Jun 1988–May 1990 24-Month	51.1°F (10.6°C)	50.3°F (10.2°C)	0.8°F (0.4°C)	91st Coolest	Coolest since: 1986	1905
	51.1°F (10.6°C)	50.3°F (10.2°C)	0.8°F (0.4°C)	36th Warmest	Warmest since: 1989	2017
	Ties: 1938, 1949, 1986, 2019
Jun 1987–May 1990 36-Month	51.1°F (10.6°C)	50.3°F (10.2°C)	0.8°F (0.4°C)	88th Coolest	Coolest since: 1986	1905, 1906
	51.1°F (10.6°C)	50.3°F (10.2°C)	0.8°F (0.4°C)	38th Warmest	Warmest since: 1989	2018
	Ties: 1950, 1976, 2009
Jun 1986–May 1990 48-Month	51.4°F (10.8°C)	50.2°F (10.1°C)	1.2°F (0.7°C)	98th Coolest	Coolest since: 1989	1905
	51.4°F (10.8°C)	50.2°F (10.1°C)	1.2°F (0.7°C)	27th Warmest	Warmest since: 1988	2019
	Ties: 2021
Jun 1985–May 1990 60-Month	51.2°F (10.7°C)	50.2°F (10.1°C)	1.0°F (0.6°C)	92nd Coolest	Coolest since: 1988	1905, 1906, 1908
	51.2°F (10.7°C)	50.2°F (10.1°C)	1.0°F (0.6°C)	32nd Warmest	Warmest since: 1989	2020
	Ties: 1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings