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 2003

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 2003 1-Month	60.0°F (15.6°C)	61.0°F (16.1°C)	-1.0°F (-0.5°C)	47th Coolest	Coolest since: 2002	1907
May 2003 1-Month	60.0°F (15.6°C)	61.0°F (16.1°C)	-1.0°F (-0.5°C)	82nd Warmest	Warmest since: 2001	2018
Apr–May 2003 2-Month	56.4°F (13.6°C)	55.5°F (13.1°C)	0.9°F (0.5°C)	82nd Coolest	Coolest since: 2002	1907
	56.4°F (13.6°C)	55.5°F (13.1°C)	0.9°F (0.5°C)	47th Warmest	Warmest since: 2001	1977
	Ties: 1948, 2019, 2022
Mar–May 2003 3-Month	51.2°F (10.7°C)	49.7°F (9.8°C)	1.5°F (0.9°C)	92nd Coolest	Coolest since: 2002	1960
	51.2°F (10.7°C)	49.7°F (9.8°C)	1.5°F (0.9°C)	37th Warmest	Warmest since: 2001	2012
	Ties: 1959, 1999, 2015
Feb–May 2003 4-Month	44.5°F (6.9°C)	44.1°F (6.7°C)	0.4°F (0.2°C)	72nd Coolest	Coolest since: 1997	1978
	44.5°F (6.9°C)	44.1°F (6.7°C)	0.4°F (0.2°C)	57th Warmest	Warmest since: 2002	2012
	Ties: 1995
Jan–May 2003 5-Month	39.6°F (4.2°C)	40.1°F (4.5°C)	-0.5°F (-0.3°C)	46th Coolest	Coolest since: 1997	1978
	39.6°F (4.2°C)	40.1°F (4.5°C)	-0.5°F (-0.3°C)	83rd Warmest	Warmest since: 2002	2012
	Ties: 1914, 1948, 1961
Dec 2002–May 2003 6-Month	38.1°F (3.4°C)	38.1°F (3.4°C)	0.0°F (0.0°C)	58th Coolest	Coolest since: 2001	1978
	38.1°F (3.4°C)	38.1°F (3.4°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 2002	2012
	Ties: 1913, 1948, 1967
Nov 2002–May 2003 7-Month	38.2°F (3.4°C)	38.3°F (3.5°C)	-0.1°F (-0.1°C)	51st Coolest	Coolest since: 2001	1904
	38.2°F (3.4°C)	38.3°F (3.5°C)	-0.1°F (-0.1°C)	77th Warmest	Warmest since: 2002	2012
	Ties: 1910, 1929, 1952
Oct 2002–May 2003 8-Month	39.8°F (4.3°C)	40.2°F (4.6°C)	-0.4°F (-0.3°C)	42nd Coolest	Coolest since: 1997	1904
	39.8°F (4.3°C)	40.2°F (4.6°C)	-0.4°F (-0.3°C)	86th Warmest	Warmest since: 2002	2012
	Ties: 1900, 1915, 1923, 1959
Sep 2002–May 2003 9-Month	43.0°F (6.1°C)	43.0°F (6.1°C)	0.0°F (0.0°C)	56th Coolest	Coolest since: 1997	1904
	43.0°F (6.1°C)	43.0°F (6.1°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 2002	2012
	Ties: 1923, 1925, 1966, 1989
Aug 2002–May 2003 10-Month	46.0°F (7.8°C)	45.9°F (7.7°C)	0.1°F (0.1°C)	61st Coolest	Coolest since: 1997	1904
	46.0°F (7.8°C)	45.9°F (7.7°C)	0.1°F (0.1°C)	67th Warmest	Warmest since: 2002	2012
	Ties: 1927
Jul 2002–May 2003 11-Month	48.8°F (9.3°C)	48.5°F (9.2°C)	0.3°F (0.1°C)	70th Coolest	Coolest since: 2001	1904
	48.8°F (9.3°C)	48.5°F (9.2°C)	0.3°F (0.1°C)	58th Warmest	Warmest since: 2002	2012
	Ties: 1909, 1933
Jun 2002–May 2003 12-Month	50.9°F (10.5°C)	50.4°F (10.2°C)	0.5°F (0.3°C)	79th Coolest	Coolest since: 2001	1904
	50.9°F (10.5°C)	50.4°F (10.2°C)	0.5°F (0.3°C)	49th Warmest	Warmest since: 2002	2012
	Ties: 1898, 1938, 1983
Dec 2001–May 2003 18-Month	47.6°F (8.7°C)	46.2°F (7.9°C)	1.4°F (0.8°C)	100th Coolest	Coolest since: 2002	1905
Dec 2001–May 2003 18-Month	47.6°F (8.7°C)	46.2°F (7.9°C)	1.4°F (0.8°C)	27th Warmest	Warmest since: 2000	2017
Jun 2001–May 2003 24-Month	51.6°F (10.9°C)	50.3°F (10.2°C)	1.3°F (0.7°C)	106th Coolest	Coolest since: 2002	1905
	51.6°F (10.9°C)	50.3°F (10.2°C)	1.3°F (0.7°C)	21st Warmest	Warmest since: 2000	2017
	Ties: 2005
Jun 2000–May 2003 36-Month	51.2°F (10.7°C)	50.3°F (10.2°C)	0.9°F (0.5°C)	90th Coolest	Coolest since: 1998	1905, 1906
	51.2°F (10.7°C)	50.3°F (10.2°C)	0.9°F (0.5°C)	36th Warmest	Warmest since: 2002	2018
	Ties: 1974
Jun 1999–May 2003 48-Month	51.6°F (10.9°C)	50.3°F (10.2°C)	1.3°F (0.7°C)	106th Coolest	Coolest since: 1999	1905
	51.6°F (10.9°C)	50.3°F (10.2°C)	1.3°F (0.7°C)	19th Warmest	Warmest since: 2002	2019
	Ties: 1955, 2005
Jun 1998–May 2003 60-Month	51.9°F (11.1°C)	50.3°F (10.2°C)	1.6°F (0.9°C)	120th Coolest	Coolest since: 2001	1905, 1906, 1908
	51.9°F (11.1°C)	50.3°F (10.2°C)	1.6°F (0.9°C)	4th Warmest	Warmest since: 2002	2020
	Ties: 1935, 2006, 2008, 2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings