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, September 1921

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1921 1-Month	72.0°F (22.2°C)	67.4°F (19.7°C)	4.6°F (2.5°C)	123rd Coolest	Coolest since: 1920	1918
September 1921 1-Month	72.0°F (22.2°C)	67.4°F (19.7°C)	4.6°F (2.5°C)	6th Warmest	Warmest to Date	1925
Aug–Sep 1921 2-Month	72.8°F (22.7°C)	70.8°F (21.6°C)	2.0°F (1.1°C)	101st Coolest	Coolest since: 1920	1967
	72.8°F (22.7°C)	70.8°F (21.6°C)	2.0°F (1.1°C)	28th Warmest	Warmest since: 1913	1936
	Ties: 1908, 1926
Jul–Sep 1921 3-Month	75.3°F (24.1°C)	72.7°F (22.6°C)	2.6°F (1.5°C)	120th Coolest	Coolest since: 1920	1967
Jul–Sep 1921 3-Month	75.3°F (24.1°C)	72.7°F (22.6°C)	2.6°F (1.5°C)	9th Warmest	Warmest to Date	1936
Jun–Sep 1921 4-Month	75.6°F (24.2°C)	72.5°F (22.5°C)	3.1°F (1.7°C)	125th Coolest	Coolest since: 1920	1967
Jun–Sep 1921 4-Month	75.6°F (24.2°C)	72.5°F (22.5°C)	3.1°F (1.7°C)	4th Warmest	Warmest to Date	1936
May–Sep 1921 5-Month	73.4°F (23.0°C)	70.7°F (21.5°C)	2.7°F (1.5°C)	124th Coolest	Coolest since: 1920	1924
	73.4°F (23.0°C)	70.7°F (21.5°C)	2.7°F (1.5°C)	5th Warmest	Warmest to Date	1936
	Ties: 2007, 2010
Apr–Sep 1921 6-Month	70.4°F (21.3°C)	67.7°F (19.8°C)	2.7°F (1.5°C)	124th Coolest	Coolest since: 1920	1907
Apr–Sep 1921 6-Month	70.4°F (21.3°C)	67.7°F (19.8°C)	2.7°F (1.5°C)	5th Warmest	Warmest to Date	2010
Mar–Sep 1921 7-Month	67.6°F (19.8°C)	64.0°F (17.8°C)	3.6°F (2.0°C)	127th Coolest	Coolest since: 1920	1924
Mar–Sep 1921 7-Month	67.6°F (19.8°C)	64.0°F (17.8°C)	3.6°F (2.0°C)	2nd Warmest	Warmest to Date	2012
Feb–Sep 1921 8-Month	63.8°F (17.7°C)	59.9°F (15.5°C)	3.9°F (2.2°C)	127th Coolest	Coolest since: 1920	1904, 1924
Feb–Sep 1921 8-Month	63.8°F (17.7°C)	59.9°F (15.5°C)	3.9°F (2.2°C)	2nd Warmest	Warmest to Date	2012
Jan–Sep 1921 9-Month	60.5°F (15.8°C)	56.3°F (13.5°C)	4.2°F (2.3°C)	127th Coolest	Coolest since: 1920	1979
Jan–Sep 1921 9-Month	60.5°F (15.8°C)	56.3°F (13.5°C)	4.2°F (2.3°C)	2nd Warmest	Warmest to Date	2012
Dec 1920–Sep 1921 10-Month	57.8°F (14.3°C)	53.9°F (12.2°C)	3.9°F (2.1°C)	126th Coolest	Coolest since: 1920	1904
Dec 1920–Sep 1921 10-Month	57.8°F (14.3°C)	53.9°F (12.2°C)	3.9°F (2.1°C)	2nd Warmest	Warmest to Date	2012
Nov 1920–Sep 1921 11-Month	56.2°F (13.4°C)	52.9°F (11.6°C)	3.3°F (1.8°C)	125th Coolest	Coolest since: 1920	1904
Nov 1920–Sep 1921 11-Month	56.2°F (13.4°C)	52.9°F (11.6°C)	3.3°F (1.8°C)	3rd Warmest	Warmest to Date	2012
Oct 1920–Sep 1921 12-Month	56.5°F (13.6°C)	53.1°F (11.7°C)	3.4°F (1.9°C)	126th Coolest	Coolest since: 1920	1904
Oct 1920–Sep 1921 12-Month	56.5°F (13.6°C)	53.1°F (11.7°C)	3.4°F (1.9°C)	2nd Warmest	Warmest to Date	2012
Apr 1920–Sep 1921 18-Month	59.7°F (15.4°C)	58.0°F (14.4°C)	1.7°F (1.0°C)	118th Coolest	Coolest since: 1920	1918
	59.7°F (15.4°C)	58.0°F (14.4°C)	1.7°F (1.0°C)	10th Warmest	Warmest to Date	2012
	Ties: 1922, 1987
Oct 1919–Sep 1921 24-Month	54.0°F (12.2°C)	53.1°F (11.7°C)	0.9°F (0.5°C)	95th Coolest	Coolest since: 1920	1979
	54.0°F (12.2°C)	53.1°F (11.7°C)	0.9°F (0.5°C)	32nd Warmest	Warmest since: 1914	2017
	Ties: 1935
Oct 1918–Sep 1921 36-Month	54.3°F (12.4°C)	53.1°F (11.7°C)	1.2°F (0.7°C)	108th Coolest	Coolest since: 1920	1979
	54.3°F (12.4°C)	53.1°F (11.7°C)	1.2°F (0.7°C)	18th Warmest	Warmest to Date	2018
	Ties: 1956, 1988, 2022
Oct 1917–Sep 1921 48-Month	53.3°F (11.8°C)	53.1°F (11.7°C)	0.2°F (0.1°C)	67th Coolest	Coolest since: 1920	1980
	53.3°F (11.8°C)	53.1°F (11.7°C)	0.2°F (0.1°C)	58th Warmest	Warmest since: 1916	2019
	Ties: 1916, 1925, 1974, 1995
Oct 1916–Sep 1921 60-Month	52.9°F (11.6°C)	53.0°F (11.7°C)	-0.1°F (-0.1°C)	46th Coolest	Coolest since: 1920	1982
	52.9°F (11.6°C)	53.0°F (11.7°C)	-0.1°F (-0.1°C)	78th Warmest	Warmest since: 1917	2020
	Ties: 1914, 1915, 1926

Citing This Page

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