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 2009

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
January 2009 1-Month	19.4°F (-7.0°C)	23.8°F (-4.6°C)	-4.4°F (-2.4°C)	26th Coolest	Coolest since: 1997	1977
	19.4°F (-7.0°C)	23.8°F (-4.6°C)	-4.4°F (-2.4°C)	103rd Warmest	Warmest since: 2008	2006
	Ties: 1957
Dec 2008–Jan 2009 2-Month	22.0°F (-5.6°C)	26.1°F (-3.3°C)	-4.1°F (-2.3°C)	20th Coolest	Coolest since: 2001	1918
	22.0°F (-5.6°C)	26.1°F (-3.3°C)	-4.1°F (-2.3°C)	108th Warmest	Warmest since: 2008	1932
	Ties: 1930
Nov 2008–Jan 2009 3-Month	28.4°F (-2.0°C)	30.8°F (-0.7°C)	-2.4°F (-1.3°C)	25th Coolest	Coolest since: 2001	1977
Nov 2008–Jan 2009 3-Month	28.4°F (-2.0°C)	30.8°F (-0.7°C)	-2.4°F (-1.3°C)	103rd Warmest	Warmest since: 2008	2002
Oct 2008–Jan 2009 4-Month	34.6°F (1.4°C)	36.7°F (2.6°C)	-2.1°F (-1.2°C)	21st Coolest	Coolest since: 2001	1977
	34.6°F (1.4°C)	36.7°F (2.6°C)	-2.1°F (-1.2°C)	107th Warmest	Warmest since: 2008	1932
	Ties: 1973
Sep 2008–Jan 2009 5-Month	40.9°F (4.9°C)	42.6°F (5.9°C)	-1.7°F (-1.0°C)	22nd Coolest	Coolest since: 2001	1977
Sep 2008–Jan 2009 5-Month	40.9°F (4.9°C)	42.6°F (5.9°C)	-1.7°F (-1.0°C)	106th Warmest	Warmest since: 2008	1932
Aug 2008–Jan 2009 6-Month	46.0°F (7.8°C)	47.8°F (8.8°C)	-1.8°F (-1.0°C)	18th Coolest	Coolest since: 2001	1977
	46.0°F (7.8°C)	47.8°F (8.8°C)	-1.8°F (-1.0°C)	110th Warmest	Warmest since: 2008	1932
	Ties: 1899, 1905, 1986, 2001
Jul 2008–Jan 2009 7-Month	50.0°F (10.0°C)	51.8°F (11.0°C)	-1.8°F (-1.0°C)	18th Coolest	Coolest since: 2001	1977
	50.0°F (10.0°C)	51.8°F (11.0°C)	-1.8°F (-1.0°C)	110th Warmest	Warmest since: 2008	1932
	Ties: 1925, 1986, 2001
Jun 2008–Jan 2009 8-Month	52.8°F (11.6°C)	54.3°F (12.4°C)	-1.5°F (-0.8°C)	26th Coolest	Coolest since: 2001	1977
Jun 2008–Jan 2009 8-Month	52.8°F (11.6°C)	54.3°F (12.4°C)	-1.5°F (-0.8°C)	102nd Warmest	Warmest since: 2008	1932
May 2008–Jan 2009 9-Month	53.5°F (11.9°C)	55.2°F (12.9°C)	-1.7°F (-1.0°C)	14th Coolest	Coolest since: 1997	1918, 1977
	53.5°F (11.9°C)	55.2°F (12.9°C)	-1.7°F (-1.0°C)	114th Warmest	Warmest since: 2008	1932
	Ties: 1962, 1979, 1993, 1994
Apr 2008–Jan 2009 10-Month	53.2°F (11.8°C)	54.8°F (12.7°C)	-1.6°F (-0.9°C)	16th Coolest	Coolest since: 1997	1918
	53.2°F (11.8°C)	54.8°F (12.7°C)	-1.6°F (-0.9°C)	112th Warmest	Warmest since: 2008	1932
	Ties: 1908, 1970, 2014
Mar 2008–Jan 2009 11-Month	51.8°F (11.0°C)	53.3°F (11.8°C)	-1.5°F (-0.8°C)	17th Coolest	Coolest since: 1997	1918
	51.8°F (11.0°C)	53.3°F (11.8°C)	-1.5°F (-0.8°C)	111th Warmest	Warmest since: 2008	1932, 2013, 2017
	Ties: 1961
Feb 2008–Jan 2009 12-Month	49.5°F (9.7°C)	51.3°F (10.7°C)	-1.8°F (-1.0°C)	15th Coolest	Coolest since: 1997	1918
	49.5°F (9.7°C)	51.3°F (10.7°C)	-1.8°F (-1.0°C)	113th Warmest	Warmest since: 2008	1932
	Ties: 1961, 1970
Aug 2007–Jan 2009 18-Month	49.7°F (9.8°C)	50.1°F (10.1°C)	-0.4°F (-0.3°C)	36th Coolest	Coolest since: 1998	1905, 1918
	49.7°F (9.8°C)	50.1°F (10.1°C)	-0.4°F (-0.3°C)	91st Warmest	Warmest since: 2008	2017
	Ties: 1911, 1912, 1921, 1945, 1976, 1985, 1986
Feb 2007–Jan 2009 24-Month	51.1°F (10.6°C)	51.2°F (10.7°C)	-0.1°F (-0.1°C)	53rd Coolest	Coolest since: 1998	1918
	51.1°F (10.6°C)	51.2°F (10.7°C)	-0.1°F (-0.1°C)	74th Warmest	Warmest since: 2008	1932
	Ties: 1897, 1909, 1910, 1912, 1916, 1937, 1944, 1984, 1985
Feb 2006–Jan 2009 36-Month	51.7°F (10.9°C)	51.2°F (10.7°C)	0.5°F (0.2°C)	82nd Coolest	Coolest since: 2005	1905
	51.7°F (10.9°C)	51.2°F (10.7°C)	0.5°F (0.2°C)	44th Warmest	Warmest since: 2008	1933
	Ties: 1916, 1947
Feb 2005–Jan 2009 48-Month	52.3°F (11.3°C)	51.2°F (10.7°C)	1.1°F (0.6°C)	108th Coolest	Coolest since: 2006	1905
	52.3°F (11.3°C)	51.2°F (10.7°C)	1.1°F (0.6°C)	17th Warmest	Warmest since: 2008	1934
	Ties: 1922, 1958, 1989, 2014, 2018
Feb 2004–Jan 2009 60-Month	52.3°F (11.3°C)	51.2°F (10.7°C)	1.1°F (0.6°C)	108th Coolest	Coolest since: 2005	1906
	52.3°F (11.3°C)	51.2°F (10.7°C)	1.1°F (0.6°C)	16th Warmest	Warmest since: 2008	1935
	Ties: 1942

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings