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, December 2005

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 2005 1-Month	24.9°F (-3.9°C)	28.3°F (-2.1°C)	-3.4°F (-1.8°C)	29th Coolest	Coolest since: 2000	1983
December 2005 1-Month	24.9°F (-3.9°C)	28.3°F (-2.1°C)	-3.4°F (-1.8°C)	100th Warmest	Warmest since: 2004	2015
Nov–Dec 2005 2-Month	34.4°F (1.3°C)	34.3°F (1.3°C)	0.1°F (0.0°C)	61st Coolest	Coolest since: 2000	2000
	34.4°F (1.3°C)	34.3°F (1.3°C)	0.1°F (0.0°C)	68th Warmest	Warmest since: 2004	1931
	Ties: 1978
Oct–Dec 2005 3-Month	41.3°F (5.2°C)	41.0°F (5.0°C)	0.3°F (0.2°C)	70th Coolest	Coolest since: 2002	1976
	41.3°F (5.2°C)	41.0°F (5.0°C)	0.3°F (0.2°C)	59th Warmest	Warmest since: 2004	1931
	Ties: 1958, 1997
Sep–Dec 2005 4-Month	48.6°F (9.2°C)	47.3°F (8.5°C)	1.3°F (0.7°C)	90th Coolest	Coolest since: 2003	1976
	48.6°F (9.2°C)	47.3°F (8.5°C)	1.3°F (0.7°C)	39th Warmest	Warmest since: 2004	1931
	Ties: 1897, 1915, 1923, 1936
Aug–Dec 2005 5-Month	53.9°F (12.2°C)	52.5°F (11.4°C)	1.4°F (0.8°C)	103rd Coolest	Coolest since: 2004	1976
	53.9°F (12.2°C)	52.5°F (11.4°C)	1.4°F (0.8°C)	26th Warmest	Warmest since: 2001	1931
	Ties: 1946, 1975, 1999
Jul–Dec 2005 6-Month	57.7°F (14.3°C)	56.4°F (13.6°C)	1.3°F (0.7°C)	104th Coolest	Coolest since: 2004	1976
	57.7°F (14.3°C)	56.4°F (13.6°C)	1.3°F (0.7°C)	25th Warmest	Warmest since: 2001	1931
	Ties: 1922, 1940, 2012
Jun–Dec 2005 7-Month	60.2°F (15.7°C)	58.6°F (14.8°C)	1.6°F (0.9°C)	108th Coolest	Coolest since: 2004	1976
	60.2°F (15.7°C)	58.6°F (14.8°C)	1.6°F (0.9°C)	21st Warmest	Warmest since: 2001	1931
	Ties: 1947, 2007
May–Dec 2005 8-Month	60.4°F (15.8°C)	59.1°F (15.1°C)	1.3°F (0.7°C)	102nd Coolest	Coolest since: 2004	1917
	60.4°F (15.8°C)	59.1°F (15.1°C)	1.3°F (0.7°C)	27th Warmest	Warmest since: 2001	1931
	Ties: 1914, 1930, 1954, 1965, 1971, 1999
Apr–Dec 2005 9-Month	59.8°F (15.4°C)	58.2°F (14.6°C)	1.6°F (0.8°C)	111th Coolest	Coolest since: 2004	1917
	59.8°F (15.4°C)	58.2°F (14.6°C)	1.6°F (0.8°C)	18th Warmest	Warmest since: 2001	1931
	Ties: 1930, 1933, 1953, 2007
Mar–Dec 2005 10-Month	57.7°F (14.3°C)	56.3°F (13.5°C)	1.4°F (0.8°C)	105th Coolest	Coolest since: 2004	1917
	57.7°F (14.3°C)	56.3°F (13.5°C)	1.4°F (0.8°C)	24th Warmest	Warmest since: 2001	2012
	Ties: 1930, 2006
Feb–Dec 2005 11-Month	55.7°F (13.2°C)	53.7°F (12.1°C)	2.0°F (1.1°C)	116th Coolest	Coolest since: 2004	1917
	55.7°F (13.2°C)	53.7°F (12.1°C)	2.0°F (1.1°C)	13th Warmest	Warmest since: 1999	2012
	Ties: 1941, 1999
Jan–Dec 2005 12-Month	53.3°F (11.8°C)	51.2°F (10.7°C)	2.1°F (1.1°C)	115th Coolest	Coolest since: 2004	1917
	53.3°F (11.8°C)	51.2°F (10.7°C)	2.1°F (1.1°C)	14th Warmest	Warmest since: 1998	2012
	Ties: 1953, 1954
Jul 2004–Dec 2005 18-Month	54.3°F (12.4°C)	53.0°F (11.7°C)	1.3°F (0.7°C)	108th Coolest	Coolest since: 2004	1904
	54.3°F (12.4°C)	53.0°F (11.7°C)	1.3°F (0.7°C)	20th Warmest	Warmest since: 2002	2012
	Ties: 1953, 1991, 2021
Jan 2004–Dec 2005 24-Month	52.6°F (11.4°C)	51.2°F (10.7°C)	1.4°F (0.7°C)	108th Coolest	Coolest since: 2004	1979
	52.6°F (11.4°C)	51.2°F (10.7°C)	1.4°F (0.7°C)	20th Warmest	Warmest since: 2002	2017
	Ties: 1955, 2002, 2013
Jan 2003–Dec 2005 36-Month	52.1°F (11.2°C)	51.3°F (10.7°C)	0.8°F (0.5°C)	97th Coolest	Coolest since: 2004	1905
	52.1°F (11.2°C)	51.3°F (10.7°C)	0.8°F (0.5°C)	30th Warmest	Warmest since: 2003	2017
	Ties: 2003, 2022
Jan 2002–Dec 2005 48-Month	52.2°F (11.2°C)	51.2°F (10.7°C)	1.0°F (0.5°C)	103rd Coolest	Coolest since: 2004	1905
	52.2°F (11.2°C)	51.2°F (10.7°C)	1.0°F (0.5°C)	23rd Warmest	Warmest since: 2002	1934
	Ties: 1990, 2017
Jan 2001–Dec 2005 60-Month	52.3°F (11.3°C)	51.2°F (10.7°C)	1.1°F (0.6°C)	110th Coolest	Coolest since: 2004	1905
	52.3°F (11.3°C)	51.2°F (10.7°C)	1.1°F (0.6°C)	15th Warmest	Warmest since: 2002	1934
	Ties: 2008

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings