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 1955

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1955 1-Month	70.2°F (21.2°C)	67.4°F (19.7°C)	2.8°F (1.5°C)	102nd Coolest	Coolest since: 1953	1918
	70.2°F (21.2°C)	67.4°F (19.7°C)	2.8°F (1.5°C)	27th Warmest	Warmest since: 1954	1925
	Ties: 1978
Aug–Sep 1955 2-Month	73.4°F (23.0°C)	70.8°F (21.6°C)	2.6°F (1.4°C)	112th Coolest	Coolest since: 1953	1967
	73.4°F (23.0°C)	70.8°F (21.6°C)	2.6°F (1.4°C)	17th Warmest	Warmest since: 1954	1936
	Ties: 1906, 1931
Jul–Sep 1955 3-Month	75.7°F (24.3°C)	72.6°F (22.6°C)	3.1°F (1.7°C)	126th Coolest	Coolest since: 1953	1967
	75.7°F (24.3°C)	72.6°F (22.6°C)	3.1°F (1.7°C)	3rd Warmest	Warmest since: 1954	1936
	Ties: 1983
Jun–Sep 1955 4-Month	73.8°F (23.2°C)	72.6°F (22.6°C)	1.2°F (0.6°C)	94th Coolest	Coolest since: 1951	1967
	73.8°F (23.2°C)	72.6°F (22.6°C)	1.2°F (0.6°C)	35th Warmest	Warmest since: 1954	1936
	Ties: 2011
May–Sep 1955 5-Month	72.1°F (22.3°C)	70.8°F (21.6°C)	1.3°F (0.7°C)	101st Coolest	Coolest since: 1952	1924
	72.1°F (22.3°C)	70.8°F (21.6°C)	1.3°F (0.7°C)	28th Warmest	Warmest since: 1954	1936
	Ties: 1900, 1901, 1922, 1939
Apr–Sep 1955 6-Month	69.9°F (21.1°C)	67.8°F (19.9°C)	2.1°F (1.2°C)	118th Coolest	Coolest since: 1953	1907
Apr–Sep 1955 6-Month	69.9°F (21.1°C)	67.8°F (19.9°C)	2.1°F (1.2°C)	11th Warmest	Warmest since: 1954	2010
Mar–Sep 1955 7-Month	65.8°F (18.8°C)	64.0°F (17.8°C)	1.8°F (1.0°C)	115th Coolest	Coolest since: 1953	1924
	65.8°F (18.8°C)	64.0°F (17.8°C)	1.8°F (1.0°C)	14th Warmest	Warmest since: 1954	2012
	Ties: 1988, 1998
Feb–Sep 1955 8-Month	61.7°F (16.5°C)	59.9°F (15.5°C)	1.8°F (1.0°C)	113th Coolest	Coolest since: 1952	1904, 1924
	61.7°F (16.5°C)	59.9°F (15.5°C)	1.8°F (1.0°C)	16th Warmest	Warmest since: 1954	2012
	Ties: 1933, 2002, 2018
Jan–Sep 1955 9-Month	58.1°F (14.5°C)	56.4°F (13.6°C)	1.7°F (0.9°C)	109th Coolest	Coolest since: 1952	1979
	58.1°F (14.5°C)	56.4°F (13.6°C)	1.7°F (0.9°C)	20th Warmest	Warmest since: 1954	2012
	Ties: 1952, 2010
Dec 1954–Sep 1955 10-Month	55.6°F (13.1°C)	53.9°F (12.2°C)	1.7°F (0.9°C)	111th Coolest	Coolest since: 1952	1904
	55.6°F (13.1°C)	53.9°F (12.2°C)	1.7°F (0.9°C)	17th Warmest	Warmest since: 1954	2012
	Ties: 1983, 1999, 2006
Nov 1954–Sep 1955 11-Month	54.4°F (12.4°C)	52.8°F (11.6°C)	1.6°F (0.8°C)	106th Coolest	Coolest since: 1952	1904
	54.4°F (12.4°C)	52.8°F (11.6°C)	1.6°F (0.8°C)	22nd Warmest	Warmest since: 1954	2012
	Ties: 1914
Oct 1954–Sep 1955 12-Month	54.6°F (12.6°C)	53.1°F (11.7°C)	1.5°F (0.9°C)	108th Coolest	Coolest since: 1952	1904
	54.6°F (12.6°C)	53.1°F (11.7°C)	1.5°F (0.9°C)	20th Warmest	Warmest since: 1954	2012
	Ties: 1925, 1939, 1983
Apr 1954–Sep 1955 18-Month	59.9°F (15.5°C)	57.9°F (14.4°C)	2.0°F (1.1°C)	121st Coolest	Coolest since: 1953	1918
	59.9°F (15.5°C)	57.9°F (14.4°C)	2.0°F (1.1°C)	7th Warmest	Warmest since: 1954	2012
	Ties: 1999
Oct 1953–Sep 1955 24-Month	55.2°F (12.9°C)	53.1°F (11.7°C)	2.1°F (1.2°C)	119th Coolest	Coolest since: 1953	1979
	55.2°F (12.9°C)	53.1°F (11.7°C)	2.1°F (1.2°C)	8th Warmest	Warmest since: 1954	2017
	Ties: 1999
Oct 1952–Sep 1955 36-Month	55.0°F (12.8°C)	53.0°F (11.7°C)	2.0°F (1.1°C)	121st Coolest	Coolest since: 1954	1979
	55.0°F (12.8°C)	53.0°F (11.7°C)	2.0°F (1.1°C)	5th Warmest	Warmest to Date	2018
	Ties: 2017
Oct 1951–Sep 1955 48-Month	54.7°F (12.6°C)	53.0°F (11.7°C)	1.7°F (0.9°C)	120th Coolest	Coolest since: 1954	1980
	54.7°F (12.6°C)	53.0°F (11.7°C)	1.7°F (0.9°C)	5th Warmest	Warmest since: 1934	2019
	Ties: 1934, 2002, 2008, 2012
Oct 1950–Sep 1955 60-Month	54.0°F (12.2°C)	53.0°F (11.7°C)	1.0°F (0.5°C)	101st Coolest	Coolest since: 1954	1982
	54.0°F (12.2°C)	53.0°F (11.7°C)	1.0°F (0.5°C)	23rd Warmest	Warmest since: 1936	2020
	Ties: 1923, 2004, 2014, 2016, 2018

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings