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 3. West

Average Temperature Rankings, April 2001

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
April 2001 1-Month	57.2°F (14.0°C)	51.3°F (10.7°C)	5.9°F (3.3°C)	122nd Coolest	Coolest since: 2000	2018
	57.2°F (14.0°C)	51.3°F (10.7°C)	5.9°F (3.3°C)	7th Warmest	Warmest since: 1981	2010
	Ties: 1981
Mar–Apr 2001 2-Month	46.6°F (8.1°C)	45.3°F (7.4°C)	1.3°F (0.7°C)	90th Coolest	Coolest since: 1999	1960
	46.6°F (8.1°C)	45.3°F (7.4°C)	1.3°F (0.7°C)	39th Warmest	Warmest since: 2000	2012
	Ties: 1896, 1994
Feb–Apr 2001 3-Month	40.3°F (4.6°C)	39.5°F (4.2°C)	0.8°F (0.4°C)	81st Coolest	Coolest since: 1996	1899
	40.3°F (4.6°C)	39.5°F (4.2°C)	0.8°F (0.4°C)	48th Warmest	Warmest since: 2000	2012
	Ties: 2011
Jan–Apr 2001 4-Month	36.4°F (2.4°C)	35.6°F (2.0°C)	0.8°F (0.4°C)	79th Coolest	Coolest since: 1997	1912
	36.4°F (2.4°C)	35.6°F (2.0°C)	0.8°F (0.4°C)	50th Warmest	Warmest since: 2000	2012
	Ties: 2007
Dec 2000–Apr 2001 5-Month	32.2°F (0.1°C)	34.2°F (1.2°C)	-2.0°F (-1.1°C)	22nd Coolest	Coolest since: 1984	1978
	32.2°F (0.1°C)	34.2°F (1.2°C)	-2.0°F (-1.1°C)	106th Warmest	Warmest since: 2000	2012
	Ties: 1900
Nov 2000–Apr 2001 6-Month	33.0°F (0.6°C)	35.2°F (1.8°C)	-2.2°F (-1.2°C)	18th Coolest	Coolest since: 1996	1904, 1912, 1978
	33.0°F (0.6°C)	35.2°F (1.8°C)	-2.2°F (-1.2°C)	110th Warmest	Warmest since: 2000	2012
	Ties: 1940, 1970
Oct 2000–Apr 2001 7-Month	36.5°F (2.5°C)	38.0°F (3.3°C)	-1.5°F (-0.8°C)	24th Coolest	Coolest since: 1996	1912
	36.5°F (2.5°C)	38.0°F (3.3°C)	-1.5°F (-0.8°C)	104th Warmest	Warmest since: 2000	2012
	Ties: 1958, 1993, 2015
Sep 2000–Apr 2001 8-Month	40.3°F (4.6°C)	41.5°F (5.3°C)	-1.2°F (-0.7°C)	32nd Coolest	Coolest since: 1997	1904, 1978
Sep 2000–Apr 2001 8-Month	40.3°F (4.6°C)	41.5°F (5.3°C)	-1.2°F (-0.7°C)	96th Warmest	Warmest since: 2000	2017
Aug 2000–Apr 2001 9-Month	44.1°F (6.7°C)	45.0°F (7.2°C)	-0.9°F (-0.5°C)	31st Coolest	Coolest since: 1997	1978
	44.1°F (6.7°C)	45.0°F (7.2°C)	-0.9°F (-0.5°C)	97th Warmest	Warmest since: 2000	2017
	Ties: 1897, 1940, 1944
Jul 2000–Apr 2001 10-Month	47.1°F (8.4°C)	48.1°F (8.9°C)	-1.0°F (-0.5°C)	28th Coolest	Coolest since: 1997	1904
	47.1°F (8.4°C)	48.1°F (8.9°C)	-1.0°F (-0.5°C)	100th Warmest	Warmest since: 2000	2012
	Ties: 1916, 1959
Jun 2000–Apr 2001 11-Month	49.1°F (9.5°C)	50.2°F (10.1°C)	-1.1°F (-0.6°C)	25th Coolest	Coolest since: 1997	1904
Jun 2000–Apr 2001 11-Month	49.1°F (9.5°C)	50.2°F (10.1°C)	-1.1°F (-0.6°C)	103rd Warmest	Warmest since: 2000	2017
May 2000–Apr 2001 12-Month	50.4°F (10.2°C)	51.2°F (10.7°C)	-0.8°F (-0.5°C)	27th Coolest	Coolest since: 1997	1918
	50.4°F (10.2°C)	51.2°F (10.7°C)	-0.8°F (-0.5°C)	101st Warmest	Warmest since: 2000	2017
	Ties: 1917
Nov 1999–Apr 2001 18-Month	47.0°F (8.3°C)	45.9°F (7.7°C)	1.1°F (0.6°C)	100th Coolest	Coolest since: 1998	1979
	47.0°F (8.3°C)	45.9°F (7.7°C)	1.1°F (0.6°C)	27th Warmest	Warmest since: 2000	2017
	Ties: 1914, 1934
May 1999–Apr 2001 24-Month	52.1°F (11.2°C)	51.3°F (10.7°C)	0.8°F (0.5°C)	99th Coolest	Coolest since: 1998	1905
	52.1°F (11.2°C)	51.3°F (10.7°C)	0.8°F (0.5°C)	28th Warmest	Warmest since: 2000	2017
	Ties: 1914, 2008
May 1998–Apr 2001 36-Month	52.6°F (11.4°C)	51.2°F (10.7°C)	1.4°F (0.7°C)	110th Coolest	Coolest since: 1999	1979
	52.6°F (11.4°C)	51.2°F (10.7°C)	1.4°F (0.7°C)	16th Warmest	Warmest since: 2000	2018
	Ties: 1956, 2002
May 1997–Apr 2001 48-Month	52.5°F (11.4°C)	51.2°F (10.7°C)	1.3°F (0.7°C)	116th Coolest	Coolest since: 2000	1980
	52.5°F (11.4°C)	51.2°F (10.7°C)	1.3°F (0.7°C)	9th Warmest	Warmest since: 1957	1935
	Ties: 1933, 1956, 2018
May 1996–Apr 2001 60-Month	52.0°F (11.1°C)	51.2°F (10.7°C)	0.8°F (0.4°C)	97th Coolest	Coolest since: 2000	1906, 1979
	52.0°F (11.1°C)	51.2°F (10.7°C)	0.8°F (0.4°C)	27th Warmest	Warmest since: 1992	1935
	Ties: 1924, 1932, 1990, 2012, 2013

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings