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, January 2000

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Warmest/Coolest Since	Record
January 2000 1-Month	26.3°F (-3.2°C)	23.8°F (-4.6°C)	2.5°F (1.4°C)	81st Coolest	Coolest since: 1999	1977
January 2000 1-Month	26.3°F (-3.2°C)	23.8°F (-4.6°C)	2.5°F (1.4°C)	49th Warmest	Warmest since: 1998	2006
Dec 1999–Jan 2000 2-Month	28.8°F (-1.8°C)	26.1°F (-3.3°C)	2.7°F (1.5°C)	92nd Coolest	Coolest since: 1999	1918
	28.8°F (-1.8°C)	26.1°F (-3.3°C)	2.7°F (1.5°C)	37th Warmest	Warmest since: 1998	1932
	Ties: 1954, 1975
Nov 1999–Jan 2000 3-Month	35.2°F (1.8°C)	30.8°F (-0.7°C)	4.4°F (2.5°C)	120th Coolest	Coolest since: 1999	1977
	35.2°F (1.8°C)	30.8°F (-0.7°C)	4.4°F (2.5°C)	9th Warmest	Warmest since: 1989	2002
	Ties: 2006
Oct 1999–Jan 2000 4-Month	40.0°F (4.4°C)	36.8°F (2.7°C)	3.2°F (1.7°C)	115th Coolest	Coolest since: 1999	1977
	40.0°F (4.4°C)	36.8°F (2.7°C)	3.2°F (1.7°C)	14th Warmest	Warmest since: 1983	1932
	Ties: 1923, 1983
Sep 1999–Jan 2000 5-Month	44.8°F (7.1°C)	42.6°F (5.9°C)	2.2°F (1.2°C)	108th Coolest	Coolest since: 1998	1977
	44.8°F (7.1°C)	42.6°F (5.9°C)	2.2°F (1.2°C)	21st Warmest	Warmest since: 1999	1932
	Ties: 1901, 1995
Aug 1999–Jan 2000 6-Month	49.3°F (9.6°C)	47.8°F (8.8°C)	1.5°F (0.8°C)	101st Coolest	Coolest since: 1998	1977
	49.3°F (9.6°C)	47.8°F (8.8°C)	1.5°F (0.8°C)	28th Warmest	Warmest since: 1999	1932
	Ties: 1955, 1983, 2023
Jul 1999–Jan 2000 7-Month	53.5°F (11.9°C)	51.8°F (11.0°C)	1.7°F (0.9°C)	109th Coolest	Coolest since: 1998	1977
	53.5°F (11.9°C)	51.8°F (11.0°C)	1.7°F (0.9°C)	20th Warmest	Warmest since: 1999	1932
	Ties: 1900, 1950, 1955, 2008
Jun 1999–Jan 2000 8-Month	55.8°F (13.2°C)	54.3°F (12.4°C)	1.5°F (0.8°C)	103rd Coolest	Coolest since: 1998	1977
	55.8°F (13.2°C)	54.3°F (12.4°C)	1.5°F (0.8°C)	26th Warmest	Warmest since: 1999	1932
	Ties: 1919
May 1999–Jan 2000 9-Month	56.7°F (13.7°C)	55.2°F (12.9°C)	1.5°F (0.8°C)	102nd Coolest	Coolest since: 1998	1918, 1977
	56.7°F (13.7°C)	55.2°F (12.9°C)	1.5°F (0.8°C)	27th Warmest	Warmest since: 1999	1932
	Ties: 2019
Apr 1999–Jan 2000 10-Month	56.4°F (13.6°C)	54.8°F (12.7°C)	1.6°F (0.9°C)	106th Coolest	Coolest since: 1998	1918
	56.4°F (13.6°C)	54.8°F (12.7°C)	1.6°F (0.9°C)	23rd Warmest	Warmest since: 1999	1932
	Ties: 1954, 1955, 2007, 2008
Mar 1999–Jan 2000 11-Month	54.7°F (12.6°C)	53.4°F (11.9°C)	1.3°F (0.7°C)	99th Coolest	Coolest since: 1998	1918
Mar 1999–Jan 2000 11-Month	54.7°F (12.6°C)	53.4°F (11.9°C)	1.3°F (0.7°C)	30th Warmest	Warmest since: 1999	1932, 2013, 2017
Feb 1999–Jan 2000 12-Month	53.3°F (11.8°C)	51.2°F (10.7°C)	2.1°F (1.1°C)	116th Coolest	Coolest since: 1998	1918
	53.3°F (11.8°C)	51.2°F (10.7°C)	2.1°F (1.1°C)	13th Warmest	Warmest since: 1999	1932
	Ties: 1923
Aug 1998–Jan 2000 18-Month	52.3°F (11.3°C)	50.1°F (10.1°C)	2.2°F (1.2°C)	121st Coolest	Coolest since: 1999	1905, 1918
	52.3°F (11.3°C)	50.1°F (10.1°C)	2.2°F (1.2°C)	7th Warmest	Warmest since: 1933	2017
	Ties: 2006, 2007
Feb 1998–Jan 2000 24-Month	53.6°F (12.0°C)	51.2°F (10.7°C)	2.4°F (1.3°C)	123rd Coolest	Coolest since: 1999	1918
Feb 1998–Jan 2000 24-Month	53.6°F (12.0°C)	51.2°F (10.7°C)	2.4°F (1.3°C)	5th Warmest	Warmest since: 1932	1932
Feb 1997–Jan 2000 36-Month	52.8°F (11.6°C)	51.2°F (10.7°C)	1.6°F (0.9°C)	116th Coolest	Coolest since: 1999	1905
	52.8°F (11.6°C)	51.2°F (10.7°C)	1.6°F (0.9°C)	11th Warmest	Warmest since: 1989	1933
	Ties: 1955
Feb 1996–Jan 2000 48-Month	51.9°F (11.1°C)	51.2°F (10.7°C)	0.7°F (0.4°C)	88th Coolest	Coolest since: 1999	1905
	51.9°F (11.1°C)	51.2°F (10.7°C)	0.7°F (0.4°C)	38th Warmest	Warmest since: 1992	1934
	Ties: 1943, 2004
Feb 1995–Jan 2000 60-Month	51.6°F (10.9°C)	51.2°F (10.7°C)	0.4°F (0.2°C)	75th Coolest	Coolest since: 1999	1906, 1907
	51.6°F (10.9°C)	51.2°F (10.7°C)	0.4°F (0.2°C)	50th Warmest	Warmest since: 1993	1935
	Ties: 1945, 2011, 2012

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings