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 7. East Southeast

Average Temperature Rankings, August 2021

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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
August 2021 1-Month	76.2°F (24.6°C)	74.2°F (23.4°C)	2.0°F (1.2°C)	102nd Coolest	Coolest since: 2020	1915
	76.2°F (24.6°C)	74.2°F (23.4°C)	2.0°F (1.2°C)	27th Warmest	Warmest since: 2016	1947
	Ties: 1906
Jul–Aug 2021 2-Month	75.7°F (24.3°C)	75.3°F (24.1°C)	0.4°F (0.2°C)	79th Coolest	Coolest since: 2020	1915
	75.7°F (24.3°C)	75.3°F (24.1°C)	0.4°F (0.2°C)	50th Warmest	Warmest since: 2016	1936
	Ties: 1977, 1998, 2001, 2003
Jun–Aug 2021 3-Month	75.2°F (24.0°C)	74.3°F (23.5°C)	0.9°F (0.5°C)	91st Coolest	Coolest since: 2020	1927
	75.2°F (24.0°C)	74.3°F (23.5°C)	0.9°F (0.5°C)	38th Warmest	Warmest since: 2018	1936
	Ties: 1911
May–Aug 2021 4-Month	71.8°F (22.1°C)	71.6°F (22.0°C)	0.2°F (0.1°C)	72nd Coolest	Coolest since: 2020	1915
	71.8°F (22.1°C)	71.6°F (22.0°C)	0.2°F (0.1°C)	57th Warmest	Warmest since: 2019	1936
	Ties: 1902, 1937
Apr–Aug 2021 5-Month	68.1°F (20.1°C)	67.8°F (19.9°C)	0.3°F (0.2°C)	70th Coolest	Coolest since: 2020	1907
	68.1°F (20.1°C)	67.8°F (19.9°C)	0.3°F (0.2°C)	59th Warmest	Warmest since: 2019	2010
	Ties: 1918, 1919, 1981
Mar–Aug 2021 6-Month	64.8°F (18.2°C)	63.4°F (17.4°C)	1.4°F (0.8°C)	107th Coolest	Coolest since: 2020	1960
	64.8°F (18.2°C)	63.4°F (17.4°C)	1.4°F (0.8°C)	22nd Warmest	Warmest since: 2016	2012
	Ties: 1913, 1922, 1933, 1998
Feb–Aug 2021 7-Month	59.0°F (15.0°C)	58.9°F (14.9°C)	0.1°F (0.1°C)	59th Coolest	Coolest since: 2015	1904
	59.0°F (15.0°C)	58.9°F (14.9°C)	0.1°F (0.1°C)	70th Warmest	Warmest since: 2020	2012
	Ties: 1898, 1908, 1939, 1945, 1992
Jan–Aug 2021 8-Month	55.5°F (13.1°C)	55.0°F (12.8°C)	0.5°F (0.3°C)	73rd Coolest	Coolest since: 2019	1978
	55.5°F (13.1°C)	55.0°F (12.8°C)	0.5°F (0.3°C)	56th Warmest	Warmest since: 2020	2012
	Ties: 1957, 2022
Dec 2020–Aug 2021 9-Month	53.2°F (11.8°C)	52.4°F (11.3°C)	0.8°F (0.5°C)	83rd Coolest	Coolest since: 2019	1904
	53.2°F (11.8°C)	52.4°F (11.3°C)	0.8°F (0.5°C)	45th Warmest	Warmest since: 2020	2012
	Ties: 2004, 2018, 2019
Nov 2020–Aug 2021 10-Month	52.7°F (11.5°C)	51.4°F (10.8°C)	1.3°F (0.7°C)	101st Coolest	Coolest since: 2020	1904
	52.7°F (11.5°C)	51.4°F (10.8°C)	1.3°F (0.7°C)	27th Warmest	Warmest since: 2017	2012
	Ties: 1922
Oct 2020–Aug 2021 11-Month	52.8°F (11.6°C)	51.8°F (11.0°C)	1.0°F (0.6°C)	94th Coolest	Coolest since: 2020	1904
	52.8°F (11.6°C)	51.8°F (11.0°C)	1.0°F (0.6°C)	34th Warmest	Warmest since: 2020	2012
	Ties: 1986, 2004, 2020
Sep 2020–Aug 2021 12-Month	54.0°F (12.2°C)	53.1°F (11.7°C)	0.9°F (0.5°C)	94th Coolest	Coolest since: 2019	1904
	54.0°F (12.2°C)	53.1°F (11.7°C)	0.9°F (0.5°C)	34th Warmest	Warmest since: 2020	2012
	Ties: 1913, 1919, 1986, 2011
Mar 2020–Aug 2021 18-Month	57.2°F (14.0°C)	56.5°F (13.6°C)	0.7°F (0.4°C)	87th Coolest	Coolest since: 2019	1904
	57.2°F (14.0°C)	56.5°F (13.6°C)	0.7°F (0.4°C)	41st Warmest	Warmest since: 2020	2012
	Ties: 1923, 1943, 2019
Sep 2019–Aug 2021 24-Month	54.2°F (12.3°C)	53.1°F (11.7°C)	1.1°F (0.6°C)	104th Coolest	Coolest since: 2020	1979
	54.2°F (12.3°C)	53.1°F (11.7°C)	1.1°F (0.6°C)	23rd Warmest	Warmest since: 2018	2017
	Ties: 1914, 2011
Sep 2018–Aug 2021 36-Month	54.0°F (12.2°C)	53.0°F (11.7°C)	1.0°F (0.5°C)	98th Coolest	Coolest since: 2016	1979
	54.0°F (12.2°C)	53.0°F (11.7°C)	1.0°F (0.5°C)	28th Warmest	Warmest since: 2020	2018
	Ties: 1987, 1991, 2004
Sep 2017–Aug 2021 48-Month	54.1°F (12.3°C)	53.0°F (11.7°C)	1.1°F (0.6°C)	104th Coolest	Coolest since: 2017	1980
	54.1°F (12.3°C)	53.0°F (11.7°C)	1.1°F (0.6°C)	21st Warmest	Warmest since: 2020	2019
	Ties: 1922
Sep 2016–Aug 2021 60-Month	54.6°F (12.6°C)	53.0°F (11.7°C)	1.6°F (0.9°C)	121st Coolest	Coolest since: 2019	1906, 1981, 1982
Sep 2016–Aug 2021 60-Month	54.6°F (12.6°C)	53.0°F (11.7°C)	1.6°F (0.9°C)	3rd Warmest	Warmest since: 2020	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings