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 2012

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 2012 1-Month	34.5°F (1.4°C)	28.3°F (-2.1°C)	6.2°F (3.5°C)	116th Coolest	Coolest since: 2011	1983
	34.5°F (1.4°C)	28.3°F (-2.1°C)	6.2°F (3.5°C)	13th Warmest	Warmest since: 2001	2015
	Ties: 1994
Nov–Dec 2012 2-Month	37.8°F (3.2°C)	34.3°F (1.3°C)	3.5°F (1.9°C)	107th Coolest	Coolest since: 2010	2000
	37.8°F (3.2°C)	34.3°F (1.3°C)	3.5°F (1.9°C)	22nd Warmest	Warmest since: 2011	1931
	Ties: 1971
Oct–Dec 2012 3-Month	42.5°F (5.8°C)	41.0°F (5.0°C)	1.5°F (0.8°C)	91st Coolest	Coolest since: 2010	1976
	42.5°F (5.8°C)	41.0°F (5.0°C)	1.5°F (0.8°C)	38th Warmest	Warmest since: 2011	1931
	Ties: 1934
Sep–Dec 2012 4-Month	47.9°F (8.8°C)	47.3°F (8.5°C)	0.6°F (0.3°C)	73rd Coolest	Coolest since: 2010	1976
Sep–Dec 2012 4-Month	47.9°F (8.8°C)	47.3°F (8.5°C)	0.6°F (0.3°C)	56th Warmest	Warmest since: 2011	1931
Aug–Dec 2012 5-Month	53.0°F (11.7°C)	52.6°F (11.4°C)	0.4°F (0.3°C)	72nd Coolest	Coolest since: 2009	1976
	53.0°F (11.7°C)	52.6°F (11.4°C)	0.4°F (0.3°C)	57th Warmest	Warmest since: 2011	1931
	Ties: 1928, 2004
Jul–Dec 2012 6-Month	57.7°F (14.3°C)	56.4°F (13.6°C)	1.3°F (0.7°C)	104th Coolest	Coolest since: 2010	1976
	57.7°F (14.3°C)	56.4°F (13.6°C)	1.3°F (0.7°C)	25th Warmest	Warmest since: 2011	1931
	Ties: 1922, 1940, 2005
Jun–Dec 2012 7-Month	59.8°F (15.4°C)	58.6°F (14.8°C)	1.2°F (0.6°C)	98th Coolest	Coolest since: 2010	1976
	59.8°F (15.4°C)	58.6°F (14.8°C)	1.2°F (0.6°C)	31st Warmest	Warmest since: 2011	1931
	Ties: 1899, 1914, 1988
May–Dec 2012 8-Month	60.7°F (15.9°C)	59.0°F (15.0°C)	1.7°F (0.9°C)	108th Coolest	Coolest since: 2011	1917
	60.7°F (15.9°C)	59.0°F (15.0°C)	1.7°F (0.9°C)	21st Warmest	Warmest since: 2011	1931
	Ties: 1922, 2011
Apr–Dec 2012 9-Month	60.0°F (15.6°C)	58.2°F (14.6°C)	1.8°F (1.0°C)	116th Coolest	Coolest since: 2011	1917
	60.0°F (15.6°C)	58.2°F (14.6°C)	1.8°F (1.0°C)	13th Warmest	Warmest since: 2010	1931
	Ties: 2010
Mar–Dec 2012 10-Month	59.4°F (15.2°C)	56.2°F (13.4°C)	3.2°F (1.8°C)	128th Coolest	Coolest since: 2011	1917
Mar–Dec 2012 10-Month	59.4°F (15.2°C)	56.2°F (13.4°C)	3.2°F (1.8°C)	1st Warmest	Warmest to Date	2012
Feb–Dec 2012 11-Month	57.2°F (14.0°C)	53.7°F (12.1°C)	3.5°F (1.9°C)	128th Coolest	Coolest since: 2011	1917
Feb–Dec 2012 11-Month	57.2°F (14.0°C)	53.7°F (12.1°C)	3.5°F (1.9°C)	1st Warmest	Warmest to Date	2012
Jan–Dec 2012 12-Month	55.0°F (12.8°C)	51.3°F (10.7°C)	3.7°F (2.1°C)	128th Coolest	Coolest since: 2011	1917
Jan–Dec 2012 12-Month	55.0°F (12.8°C)	51.3°F (10.7°C)	3.7°F (2.1°C)	1st Warmest	Warmest to Date	2012
Jul 2011–Dec 2012 18-Month	56.2°F (13.4°C)	53.0°F (11.7°C)	3.2°F (1.7°C)	127th Coolest	Coolest since: 2011	1904
Jul 2011–Dec 2012 18-Month	56.2°F (13.4°C)	53.0°F (11.7°C)	3.2°F (1.7°C)	1st Warmest	Warmest to Date	2012
Jan 2011–Dec 2012 24-Month	53.6°F (12.0°C)	51.2°F (10.7°C)	2.4°F (1.3°C)	123rd Coolest	Coolest since: 2011	1979
	53.6°F (12.0°C)	51.2°F (10.7°C)	2.4°F (1.3°C)	5th Warmest	Warmest since: 1999	2017
	Ties: 1939
Jan 2010–Dec 2012 36-Month	53.1°F (11.7°C)	51.2°F (10.7°C)	1.9°F (1.0°C)	122nd Coolest	Coolest since: 2011	1905
Jan 2010–Dec 2012 36-Month	53.1°F (11.7°C)	51.2°F (10.7°C)	1.9°F (1.0°C)	5th Warmest	Warmest since: 2007	2017
Jan 2009–Dec 2012 48-Month	52.5°F (11.4°C)	51.3°F (10.7°C)	1.2°F (0.7°C)	116th Coolest	Coolest since: 2011	1905
	52.5°F (11.4°C)	51.3°F (10.7°C)	1.2°F (0.7°C)	10th Warmest	Warmest since: 2007	1934
	Ties: 2002, 2006
Jan 2008–Dec 2012 60-Month	52.0°F (11.1°C)	51.2°F (10.7°C)	0.8°F (0.4°C)	100th Coolest	Coolest since: 2011	1905
	52.0°F (11.1°C)	51.2°F (10.7°C)	0.8°F (0.4°C)	25th Warmest	Warmest since: 2009	1934
	Ties: 1931, 1932, 1938, 1939, 1955, 2004, 2013, 2016

Citing This Page

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