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 8. Southwest

Average Temperature Rankings, April 1955

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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
April 1955 1-Month	61.1°F (16.2°C)	55.3°F (12.9°C)	5.8°F (3.3°C)	121st Coolest	Coolest since: 1953	1907
April 1955 1-Month	61.1°F (16.2°C)	55.3°F (12.9°C)	5.8°F (3.3°C)	8th Warmest	Warmest since: 1954	1896
Mar–Apr 1955 2-Month	53.2°F (11.8°C)	50.0°F (10.0°C)	3.2°F (1.8°C)	106th Coolest	Coolest since: 1954	1960
	53.2°F (11.8°C)	50.0°F (10.0°C)	3.2°F (1.8°C)	23rd Warmest	Warmest since: 1946	2012
	Ties: 2021
Feb–Apr 1955 3-Month	47.3°F (8.5°C)	44.9°F (7.2°C)	2.4°F (1.3°C)	102nd Coolest	Coolest since: 1953	1899
	47.3°F (8.5°C)	44.9°F (7.2°C)	2.4°F (1.3°C)	27th Warmest	Warmest since: 1954	2012
	Ties: 2004, 2011
Jan–Apr 1955 4-Month	43.7°F (6.5°C)	41.5°F (5.3°C)	2.2°F (1.2°C)	102nd Coolest	Coolest since: 1952	1978
Jan–Apr 1955 4-Month	43.7°F (6.5°C)	41.5°F (5.3°C)	2.2°F (1.2°C)	27th Warmest	Warmest since: 1954	2012
Dec 1954–Apr 1955 5-Month	42.1°F (5.6°C)	40.1°F (4.5°C)	2.0°F (1.1°C)	102nd Coolest	Coolest since: 1952	1978
	42.1°F (5.6°C)	40.1°F (4.5°C)	2.0°F (1.1°C)	26th Warmest	Warmest since: 1954	2012
	Ties: 1995
Nov 1954–Apr 1955 6-Month	42.6°F (5.9°C)	40.9°F (4.9°C)	1.7°F (1.0°C)	100th Coolest	Coolest since: 1952	1912
	42.6°F (5.9°C)	40.9°F (4.9°C)	1.7°F (1.0°C)	28th Warmest	Warmest since: 1954	2012
	Ties: 2022
Oct 1954–Apr 1955 7-Month	44.8°F (7.1°C)	43.2°F (6.2°C)	1.6°F (0.9°C)	99th Coolest	Coolest since: 1953	1899, 1978
	44.8°F (7.1°C)	43.2°F (6.2°C)	1.6°F (0.9°C)	29th Warmest	Warmest since: 1954	2012
	Ties: 2007
Sep 1954–Apr 1955 8-Month	48.3°F (9.1°C)	46.5°F (8.1°C)	1.8°F (1.0°C)	107th Coolest	Coolest since: 1953	1918
	48.3°F (9.1°C)	46.5°F (8.1°C)	1.8°F (1.0°C)	21st Warmest	Warmest since: 1954	2017
	Ties: 1942
Aug 1954–Apr 1955 9-Month	51.8°F (11.0°C)	49.8°F (9.9°C)	2.0°F (1.1°C)	116th Coolest	Coolest since: 1953	1918
	51.8°F (11.0°C)	49.8°F (9.9°C)	2.0°F (1.1°C)	12th Warmest	Warmest since: 1954	2017
	Ties: 1974, 1992, 2020, 2022
Jul 1954–Apr 1955 10-Month	54.8°F (12.7°C)	52.6°F (11.4°C)	2.2°F (1.3°C)	120th Coolest	Coolest since: 1954	1918
	54.8°F (12.7°C)	52.6°F (11.4°C)	2.2°F (1.3°C)	8th Warmest	Warmest since: 1954	2012
	Ties: 1954
Jun 1954–Apr 1955 11-Month	56.9°F (13.8°C)	54.5°F (12.5°C)	2.4°F (1.3°C)	120th Coolest	Coolest since: 1953	1918
	56.9°F (13.8°C)	54.5°F (12.5°C)	2.4°F (1.3°C)	8th Warmest	Warmest since: 1954	2012, 2017
	Ties: 1999
May 1954–Apr 1955 12-Month	57.2°F (14.0°C)	55.4°F (13.0°C)	1.8°F (1.0°C)	116th Coolest	Coolest since: 1953	1918
	57.2°F (14.0°C)	55.4°F (13.0°C)	1.8°F (1.0°C)	12th Warmest	Warmest since: 1954	2012, 2017
	Ties: 2002
Nov 1953–Apr 1955 18-Month	52.7°F (11.5°C)	50.5°F (10.3°C)	2.2°F (1.2°C)	117th Coolest	Coolest since: 1953	1905, 1979
Nov 1953–Apr 1955 18-Month	52.7°F (11.5°C)	50.5°F (10.3°C)	2.2°F (1.2°C)	10th Warmest	Warmest since: 1954	2017
May 1953–Apr 1955 24-Month	57.6°F (14.2°C)	55.4°F (13.0°C)	2.2°F (1.2°C)	122nd Coolest	Coolest since: 1954	1978
	57.6°F (14.2°C)	55.4°F (13.0°C)	2.2°F (1.2°C)	5th Warmest	Warmest since: 1932	2017
	Ties: 1932
May 1952–Apr 1955 36-Month	57.3°F (14.1°C)	55.4°F (13.0°C)	1.9°F (1.1°C)	122nd Coolest	Coolest since: 1954	1979
	57.3°F (14.1°C)	55.4°F (13.0°C)	1.9°F (1.1°C)	4th Warmest	Warmest to Date	2018
	Ties: 2019
May 1951–Apr 1955 48-Month	56.7°F (13.7°C)	55.3°F (12.9°C)	1.4°F (0.8°C)	112th Coolest	Coolest since: 1954	1980
	56.7°F (13.7°C)	55.3°F (12.9°C)	1.4°F (0.8°C)	13th Warmest	Warmest since: 1935	2019
	Ties: 2012, 2014
May 1950–Apr 1955 60-Month	56.1°F (13.4°C)	55.3°F (12.9°C)	0.8°F (0.5°C)	92nd Coolest	Coolest since: 1954	1980, 1981
	56.1°F (13.4°C)	55.3°F (12.9°C)	0.8°F (0.5°C)	32nd Warmest	Warmest since: 1942	2020
	Ties: 1925, 1937, 1941, 1991, 2000, 2005, 2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 24, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings