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, February 2009

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
February 2009 1-Month	32.0°F (0.0°C)	28.1°F (-2.2°C)	3.9°F (2.2°C)	98th Coolest	Coolest since: 2008	1936
	32.0°F (0.0°C)	28.1°F (-2.2°C)	3.9°F (2.2°C)	31st Warmest	Warmest since: 2005	2017
	Ties: 1997
Jan–Feb 2009 2-Month	25.7°F (-3.5°C)	25.9°F (-3.4°C)	-0.2°F (-0.1°C)	55th Coolest	Coolest since: 2008	1979
	25.7°F (-3.5°C)	25.9°F (-3.4°C)	-0.2°F (-0.1°C)	74th Warmest	Warmest since: 2006	2017
	Ties: 1995
Dec 2008–Feb 2009 3-Month	25.3°F (-3.7°C)	26.7°F (-2.9°C)	-1.4°F (-0.8°C)	35th Coolest	Coolest since: 2001	1936
Dec 2008–Feb 2009 3-Month	25.3°F (-3.7°C)	26.7°F (-2.9°C)	-1.4°F (-0.8°C)	93rd Warmest	Warmest since: 2008	1932
Nov 2008–Feb 2009 4-Month	29.3°F (-1.5°C)	30.1°F (-1.1°C)	-0.8°F (-0.4°C)	40th Coolest	Coolest since: 2001	1936
	29.3°F (-1.5°C)	30.1°F (-1.1°C)	-0.8°F (-0.4°C)	88th Warmest	Warmest since: 2008	1932
	Ties: 1930, 1971, 1984
Oct 2008–Feb 2009 5-Month	34.1°F (1.2°C)	35.0°F (1.7°C)	-0.9°F (-0.5°C)	37th Coolest	Coolest since: 2003	1977
	34.1°F (1.2°C)	35.0°F (1.7°C)	-0.9°F (-0.5°C)	91st Warmest	Warmest since: 2008	1932
	Ties: 1930, 1945, 1960, 1969
Sep 2008–Feb 2009 6-Month	39.4°F (4.1°C)	40.2°F (4.6°C)	-0.8°F (-0.5°C)	37th Coolest	Coolest since: 2001	1977
	39.4°F (4.1°C)	40.2°F (4.6°C)	-0.8°F (-0.5°C)	91st Warmest	Warmest since: 2008	1932
	Ties: 1903, 1926, 1956
Aug 2008–Feb 2009 7-Month	44.0°F (6.7°C)	45.0°F (7.2°C)	-1.0°F (-0.5°C)	31st Coolest	Coolest since: 2001	1977
	44.0°F (6.7°C)	45.0°F (7.2°C)	-1.0°F (-0.5°C)	97th Warmest	Warmest since: 2008	1932
	Ties: 1917
Jul 2008–Feb 2009 8-Month	47.8°F (8.8°C)	48.9°F (9.4°C)	-1.1°F (-0.6°C)	29th Coolest	Coolest since: 2001	1977
	47.8°F (8.8°C)	48.9°F (9.4°C)	-1.1°F (-0.6°C)	99th Warmest	Warmest since: 2008	1932
	Ties: 1903, 1925, 1969
Jun 2008–Feb 2009 9-Month	50.5°F (10.3°C)	51.4°F (10.8°C)	-0.9°F (-0.5°C)	33rd Coolest	Coolest since: 2001	1977
	50.5°F (10.3°C)	51.4°F (10.8°C)	-0.9°F (-0.5°C)	95th Warmest	Warmest since: 2008	1932
	Ties: 1952, 1975
May 2008–Feb 2009 10-Month	51.3°F (10.7°C)	52.4°F (11.3°C)	-1.1°F (-0.6°C)	30th Coolest	Coolest since: 2001	1918
	51.3°F (10.7°C)	52.4°F (11.3°C)	-1.1°F (-0.6°C)	98th Warmest	Warmest since: 2008	1932
	Ties: 1912
Apr 2008–Feb 2009 11-Month	51.3°F (10.7°C)	52.4°F (11.3°C)	-1.1°F (-0.6°C)	29th Coolest	Coolest since: 2001	1918
Apr 2008–Feb 2009 11-Month	51.3°F (10.7°C)	52.4°F (11.3°C)	-1.1°F (-0.6°C)	99th Warmest	Warmest since: 2008	1932
Mar 2008–Feb 2009 12-Month	50.2°F (10.1°C)	51.3°F (10.7°C)	-1.1°F (-0.6°C)	26th Coolest	Coolest since: 1997	1918
	50.2°F (10.1°C)	51.3°F (10.7°C)	-1.1°F (-0.6°C)	102nd Warmest	Warmest since: 2008	2017
	Ties: 1912, 1916, 1961, 1982
Sep 2007–Feb 2009 18-Month	47.1°F (8.4°C)	47.5°F (8.6°C)	-0.4°F (-0.2°C)	38th Coolest	Coolest since: 1997	1905
	47.1°F (8.4°C)	47.5°F (8.6°C)	-0.4°F (-0.2°C)	89th Warmest	Warmest since: 2008	2017
	Ties: 1902, 1946, 1983
Mar 2007–Feb 2009 24-Month	51.5°F (10.8°C)	51.2°F (10.7°C)	0.3°F (0.1°C)	75th Coolest	Coolest since: 2004	1905
	51.5°F (10.8°C)	51.2°F (10.7°C)	0.3°F (0.1°C)	52nd Warmest	Warmest since: 2008	2017
	Ties: 1921, 1941, 1975, 1991
Mar 2006–Feb 2009 36-Month	51.7°F (10.9°C)	51.2°F (10.7°C)	0.5°F (0.2°C)	81st Coolest	Coolest since: 2005	1979
	51.7°F (10.9°C)	51.2°F (10.7°C)	0.5°F (0.2°C)	45th Warmest	Warmest since: 2008	2018
	Ties: 1916, 1958, 1966, 1976, 2005
Mar 2005–Feb 2009 48-Month	52.2°F (11.2°C)	51.2°F (10.7°C)	1.0°F (0.5°C)	102nd Coolest	Coolest since: 2006	1905, 1980
	52.2°F (11.2°C)	51.2°F (10.7°C)	1.0°F (0.5°C)	23rd Warmest	Warmest since: 2008	1934, 1935, 2019
	Ties: 2003, 2005, 2006, 2014
Mar 2004–Feb 2009 60-Month	52.3°F (11.3°C)	51.2°F (10.7°C)	1.1°F (0.6°C)	112th Coolest	Coolest since: 2007	1905
	52.3°F (11.3°C)	51.2°F (10.7°C)	1.1°F (0.6°C)	12th Warmest	Warmest since: 2008	1935
	Ties: 1941, 1942, 1943, 1991, 2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings