Statewide 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

Average Temperature Rankings, October 2011

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
October 2011 1-Month	55.2°F (12.9°C)	54.6°F (12.6°C)	0.6°F (0.3°C)	76th Coolest	Coolest since: 2009	1925
	55.2°F (12.9°C)	54.6°F (12.6°C)	0.6°F (0.3°C)	53rd Warmest	Warmest since: 2010	1963
	Ties: 1986
Sep–Oct 2011 2-Month	59.4°F (15.2°C)	60.4°F (15.8°C)	-1.0°F (-0.6°C)	39th Coolest	Coolest since: 2009	1917
	59.4°F (15.2°C)	60.4°F (15.8°C)	-1.0°F (-0.6°C)	90th Warmest	Warmest since: 2010	1897, 2016
	Ties: 1903, 1951, 1995
Aug–Oct 2011 3-Month	64.5°F (18.1°C)	64.7°F (18.2°C)	-0.2°F (-0.1°C)	55th Coolest	Coolest since: 2009	1917
	64.5°F (18.1°C)	64.7°F (18.2°C)	-0.2°F (-0.1°C)	74th Warmest	Warmest since: 2010	1947
	Ties: 1918, 1946, 1948, 1985
Jul–Oct 2011 4-Month	68.4°F (20.2°C)	67.5°F (19.7°C)	0.9°F (0.5°C)	92nd Coolest	Coolest since: 2009	1917
	68.4°F (20.2°C)	67.5°F (19.7°C)	0.9°F (0.5°C)	37th Warmest	Warmest since: 2010	1936
	Ties: 1913, 1935, 1956, 2017
Jun–Oct 2011 5-Month	69.3°F (20.7°C)	68.3°F (20.2°C)	1.0°F (0.5°C)	95th Coolest	Coolest since: 2009	1917
	69.3°F (20.7°C)	68.3°F (20.2°C)	1.0°F (0.5°C)	34th Warmest	Warmest since: 2010	1936
	Ties: 1940, 2019
May–Oct 2011 6-Month	68.1°F (20.1°C)	67.2°F (19.6°C)	0.9°F (0.5°C)	91st Coolest	Coolest since: 2009	1917
	68.1°F (20.1°C)	67.2°F (19.6°C)	0.9°F (0.5°C)	38th Warmest	Warmest since: 2010	1936
	Ties: 1897, 1899, 1930, 1971, 1977, 1980, 1986, 2022
Apr–Oct 2011 7-Month	65.9°F (18.8°C)	64.9°F (18.3°C)	1.0°F (0.5°C)	94th Coolest	Coolest since: 2009	1917
	65.9°F (18.8°C)	64.9°F (18.3°C)	1.0°F (0.5°C)	35th Warmest	Warmest since: 2010	2010
	Ties: 1899, 1919, 1947, 2002, 2019
Mar–Oct 2011 8-Month	62.9°F (17.2°C)	61.8°F (16.6°C)	1.1°F (0.6°C)	99th Coolest	Coolest since: 2009	1917
	62.9°F (17.2°C)	61.8°F (16.6°C)	1.1°F (0.6°C)	30th Warmest	Warmest since: 2010	2012
	Ties: 1931, 1959
Feb–Oct 2011 9-Month	59.3°F (15.2°C)	58.2°F (14.6°C)	1.1°F (0.6°C)	100th Coolest	Coolest since: 2009	1917
	59.3°F (15.2°C)	58.2°F (14.6°C)	1.1°F (0.6°C)	29th Warmest	Warmest since: 2010	2012
	Ties: 1919, 1933, 1983, 2002
Jan–Oct 2011 10-Month	55.6°F (13.1°C)	54.9°F (12.7°C)	0.7°F (0.4°C)	85th Coolest	Coolest since: 2009	1904
Jan–Oct 2011 10-Month	55.6°F (13.1°C)	54.9°F (12.7°C)	0.7°F (0.4°C)	44th Warmest	Warmest since: 2010	2012
Dec 2010–Oct 2011 11-Month	52.7°F (11.5°C)	52.6°F (11.4°C)	0.1°F (0.1°C)	66th Coolest	Coolest since: 2009	1904
	52.7°F (11.5°C)	52.6°F (11.4°C)	0.1°F (0.1°C)	62nd Warmest	Warmest since: 2010	2012
	Ties: 1898, 1927, 1976
Nov 2010–Oct 2011 12-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	79th Coolest	Coolest since: 2009	1904
	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	49th Warmest	Warmest since: 2010	2012
	Ties: 1908, 1930, 1935, 1990
May 2010–Oct 2011 18-Month	57.8°F (14.3°C)	56.8°F (13.8°C)	1.0°F (0.5°C)	97th Coolest	Coolest since: 2010	1904
	57.8°F (14.3°C)	56.8°F (13.8°C)	1.0°F (0.5°C)	31st Warmest	Warmest since: 2007	2012
	Ties: 1941, 1988, 2013, 2018, 2020
Nov 2009–Oct 2011 24-Month	52.8°F (11.6°C)	51.6°F (10.9°C)	1.2°F (0.7°C)	104th Coolest	Coolest since: 2010	1905
	52.8°F (11.6°C)	51.6°F (10.9°C)	1.2°F (0.7°C)	23rd Warmest	Warmest since: 2008	2017
	Ties: 1931, 2003, 2008
Nov 2008–Oct 2011 36-Month	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F (0.3°C)	84th Coolest	Coolest since: 2010	1904, 1979
	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F (0.3°C)	42nd Warmest	Warmest since: 2009	2018
	Ties: 1931, 1990, 2009
Nov 2007–Oct 2011 48-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F (0.2°C)	72nd Coolest	Coolest since: 1997	1905
	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F (0.2°C)	53rd Warmest	Warmest since: 2010	2019
	Ties: 1937, 1938, 1947, 1976
Nov 2006–Oct 2011 60-Month	52.4°F (11.3°C)	51.6°F (10.9°C)	0.8°F (0.4°C)	92nd Coolest	Coolest since: 1999	1905, 1906
	52.4°F (11.3°C)	51.6°F (10.9°C)	0.8°F (0.4°C)	32nd Warmest	Warmest since: 2010	2002, 2020
	Ties: 1955, 1990

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings