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, September 2007

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 2007 1-Month	69.8°F (21.0°C)	66.2°F (19.0°C)	3.6°F (2.0°C)	113th Coolest	Coolest since: 2006	1918
	69.8°F (21.0°C)	66.2°F (19.0°C)	3.6°F (2.0°C)	16th Warmest	Warmest since: 2005	1925, 1933
	Ties: 1927
Aug–Sep 2007 2-Month	74.0°F (23.3°C)	69.8°F (21.0°C)	4.2°F (2.3°C)	126th Coolest	Coolest since: 2006	1967
Aug–Sep 2007 2-Month	74.0°F (23.3°C)	69.8°F (21.0°C)	4.2°F (2.3°C)	3rd Warmest	Warmest since: 1947	1936
Jul–Sep 2007 3-Month	73.8°F (23.2°C)	71.7°F (22.1°C)	2.1°F (1.1°C)	112th Coolest	Coolest since: 2006	1967
	73.8°F (23.2°C)	71.7°F (22.1°C)	2.1°F (1.1°C)	17th Warmest	Warmest since: 2005	1936
	Ties: 1901, 1913
Jun–Sep 2007 4-Month	73.5°F (23.1°C)	71.7°F (22.1°C)	1.8°F (1.0°C)	110th Coolest	Coolest since: 2006	1915, 1924
	73.5°F (23.1°C)	71.7°F (22.1°C)	1.8°F (1.0°C)	19th Warmest	Warmest since: 2005	1936
	Ties: 1914, 2021
May–Sep 2007 5-Month	72.3°F (22.4°C)	69.7°F (20.9°C)	2.6°F (1.5°C)	123rd Coolest	Coolest since: 2006	1924
	72.3°F (22.4°C)	69.7°F (20.9°C)	2.6°F (1.5°C)	6th Warmest	Warmest since: 1988	1936
	Ties: 1988
Apr–Sep 2007 6-Month	68.6°F (20.3°C)	66.7°F (19.3°C)	1.9°F (1.0°C)	112th Coolest	Coolest since: 2006	1907
Apr–Sep 2007 6-Month	68.6°F (20.3°C)	66.7°F (19.3°C)	1.9°F (1.0°C)	17th Warmest	Warmest since: 2005	2010
Mar–Sep 2007 7-Month	65.7°F (18.7°C)	62.9°F (17.2°C)	2.8°F (1.5°C)	123rd Coolest	Coolest since: 2006	1924
	65.7°F (18.7°C)	62.9°F (17.2°C)	2.8°F (1.5°C)	6th Warmest	Warmest since: 1991	2012
	Ties: 1977
Feb–Sep 2007 8-Month	60.2°F (15.7°C)	58.7°F (14.8°C)	1.5°F (0.9°C)	111th Coolest	Coolest since: 2006	1904
	60.2°F (15.7°C)	58.7°F (14.8°C)	1.5°F (0.9°C)	18th Warmest	Warmest since: 2005	2012
	Ties: 1922, 1931, 1953, 1986, 1999, 2002, 2018
Jan–Sep 2007 9-Month	56.9°F (13.8°C)	54.9°F (12.7°C)	2.0°F (1.1°C)	113th Coolest	Coolest since: 2004	1904, 1912
	56.9°F (13.8°C)	54.9°F (12.7°C)	2.0°F (1.1°C)	16th Warmest	Warmest since: 2006	2012
	Ties: 1925, 1953, 2000
Dec 2006–Sep 2007 10-Month	54.7°F (12.6°C)	52.4°F (11.3°C)	2.3°F (1.3°C)	117th Coolest	Coolest since: 2006	1904
Dec 2006–Sep 2007 10-Month	54.7°F (12.6°C)	52.4°F (11.3°C)	2.3°F (1.3°C)	11th Warmest	Warmest since: 2005	2012
Nov 2006–Sep 2007 11-Month	53.8°F (12.1°C)	51.4°F (10.8°C)	2.4°F (1.3°C)	117th Coolest	Coolest since: 2006	1904
Nov 2006–Sep 2007 11-Month	53.8°F (12.1°C)	51.4°F (10.8°C)	2.4°F (1.3°C)	11th Warmest	Warmest since: 2005	2012
Oct 2006–Sep 2007 12-Month	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F (1.1°C)	114th Coolest	Coolest since: 2006	1904
	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F (1.1°C)	14th Warmest	Warmest since: 2006	2012
	Ties: 2006
Apr 2006–Sep 2007 18-Month	58.3°F (14.6°C)	56.7°F (13.7°C)	1.6°F (0.9°C)	115th Coolest	Coolest since: 2005	1904, 1918
	58.3°F (14.6°C)	56.7°F (13.7°C)	1.6°F (0.9°C)	13th Warmest	Warmest since: 2006	2012
	Ties: 1922, 1934, 2005
Oct 2005–Sep 2007 24-Month	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F (1.1°C)	115th Coolest	Coolest since: 2005	1979
	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F (1.1°C)	12th Warmest	Warmest since: 2006	2017
	Ties: 1954
Oct 2004–Sep 2007 36-Month	53.8°F (12.1°C)	51.6°F (10.9°C)	2.2°F (1.2°C)	123rd Coolest	Coolest since: 2006	1979
	53.8°F (12.1°C)	51.6°F (10.9°C)	2.2°F (1.2°C)	3rd Warmest	Warmest since: 2000	2018
	Ties: 2012, 2017
Oct 2003–Sep 2007 48-Month	53.5°F (11.9°C)	51.6°F (10.9°C)	1.9°F (1.0°C)	122nd Coolest	Coolest since: 2006	1905
Oct 2003–Sep 2007 48-Month	53.5°F (11.9°C)	51.6°F (10.9°C)	1.9°F (1.0°C)	3rd Warmest	Warmest to Date	2019
Oct 2002–Sep 2007 60-Month	53.0°F (11.7°C)	51.6°F (10.9°C)	1.4°F (0.8°C)	115th Coolest	Coolest since: 2005	1906
Oct 2002–Sep 2007 60-Month	53.0°F (11.7°C)	51.6°F (10.9°C)	1.4°F (0.8°C)	9th Warmest	Warmest since: 2006	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings