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 1943

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1943 1-Month	63.7°F (17.6°C)	67.4°F (19.7°C)	-3.7°F (-2.1°C)	10th Coolest	Coolest since: 1928	1918
September 1943 1-Month	63.7°F (17.6°C)	67.4°F (19.7°C)	-3.7°F (-2.1°C)	119th Warmest	Warmest since: 1942	1925
Aug–Sep 1943 2-Month	70.6°F (21.4°C)	70.9°F (21.6°C)	-0.3°F (-0.2°C)	56th Coolest	Coolest since: 1942	1967
	70.6°F (21.4°C)	70.9°F (21.6°C)	-0.3°F (-0.2°C)	73rd Warmest	Warmest since: 1941	1936
	Ties: 1945, 1964, 1986, 2000, 2001, 2008, 2017
Jul–Sep 1943 3-Month	73.0°F (22.8°C)	72.7°F (22.6°C)	0.3°F (0.2°C)	75th Coolest	Coolest since: 1942	1967
	73.0°F (22.8°C)	72.7°F (22.6°C)	0.3°F (0.2°C)	54th Warmest	Warmest since: 1941	1936
	Ties: 1932, 1961, 1999
Jun–Sep 1943 4-Month	73.6°F (23.1°C)	72.5°F (22.5°C)	1.1°F (0.6°C)	90th Coolest	Coolest since: 1942	1967
	73.6°F (23.1°C)	72.5°F (22.5°C)	1.1°F (0.6°C)	39th Warmest	Warmest since: 1941	1936
	Ties: 1922
May–Sep 1943 5-Month	71.5°F (21.9°C)	70.7°F (21.5°C)	0.8°F (0.4°C)	88th Coolest	Coolest since: 1942	1924
	71.5°F (21.9°C)	70.7°F (21.5°C)	0.8°F (0.4°C)	41st Warmest	Warmest since: 1941	1936
	Ties: 1926, 1970
Apr–Sep 1943 6-Month	68.1°F (20.1°C)	67.7°F (19.8°C)	0.4°F (0.3°C)	73rd Coolest	Coolest since: 1942	1907
	68.1°F (20.1°C)	67.7°F (19.8°C)	0.4°F (0.3°C)	56th Warmest	Warmest since: 1942	2010
	Ties: 1942, 1995
Mar–Sep 1943 7-Month	63.7°F (17.6°C)	64.0°F (17.8°C)	-0.3°F (-0.2°C)	47th Coolest	Coolest since: 1940	1924
	63.7°F (17.6°C)	64.0°F (17.8°C)	-0.3°F (-0.2°C)	82nd Warmest	Warmest since: 1942	2012
	Ties: 1932, 1962
Feb–Sep 1943 8-Month	60.1°F (15.6°C)	59.9°F (15.5°C)	0.2°F (0.1°C)	67th Coolest	Coolest since: 1940	1904, 1924
	60.1°F (15.6°C)	59.9°F (15.5°C)	0.2°F (0.1°C)	62nd Warmest	Warmest since: 1942	2012
	Ties: 1927, 1945, 1956, 1981
Jan–Sep 1943 9-Month	56.7°F (13.7°C)	56.3°F (13.5°C)	0.4°F (0.2°C)	71st Coolest	Coolest since: 1942	1979
	56.7°F (13.7°C)	56.3°F (13.5°C)	0.4°F (0.2°C)	58th Warmest	Warmest since: 1942	2012
	Ties: 1942, 1976
Dec 1942–Sep 1943 10-Month	53.9°F (12.2°C)	53.9°F (12.2°C)	0.0°F (0.0°C)	68th Coolest	Coolest since: 1940	1904
	53.9°F (12.2°C)	53.9°F (12.2°C)	0.0°F (0.0°C)	60th Warmest	Warmest since: 1942	2012
	Ties: 1909, 1936, 1948, 1981, 1985
Nov 1942–Sep 1943 11-Month	53.1°F (11.7°C)	52.9°F (11.6°C)	0.2°F (0.1°C)	68th Coolest	Coolest since: 1940	1904
Nov 1942–Sep 1943 11-Month	53.1°F (11.7°C)	52.9°F (11.6°C)	0.2°F (0.1°C)	60th Warmest	Warmest since: 1942	2012
Oct 1942–Sep 1943 12-Month	53.3°F (11.8°C)	53.0°F (11.7°C)	0.3°F (0.1°C)	66th Coolest	Coolest since: 1940	1904
	53.3°F (11.8°C)	53.0°F (11.7°C)	0.3°F (0.1°C)	62nd Warmest	Warmest since: 1942	2012
	Ties: 1948, 1973
Apr 1942–Sep 1943 18-Month	58.3°F (14.6°C)	58.0°F (14.4°C)	0.3°F (0.2°C)	74th Coolest	Coolest since: 1940	1918
	58.3°F (14.6°C)	58.0°F (14.4°C)	0.3°F (0.2°C)	54th Warmest	Warmest since: 1942	2012
	Ties: 1956, 1964, 1989
Oct 1941–Sep 1943 24-Month	53.8°F (12.1°C)	53.1°F (11.7°C)	0.7°F (0.4°C)	93rd Coolest	Coolest since: 1941	1979
	53.8°F (12.1°C)	53.1°F (11.7°C)	0.7°F (0.4°C)	34th Warmest	Warmest since: 1942	2017
	Ties: 1931, 1986, 1998, 2001, 2020
Oct 1940–Sep 1943 36-Month	54.0°F (12.2°C)	53.0°F (11.7°C)	1.0°F (0.5°C)	97th Coolest	Coolest since: 1942	1979
	54.0°F (12.2°C)	53.0°F (11.7°C)	1.0°F (0.5°C)	29th Warmest	Warmest since: 1935	2018
	Ties: 1991, 1993, 2021
Oct 1939–Sep 1943 48-Month	53.4°F (11.9°C)	53.0°F (11.7°C)	0.4°F (0.2°C)	75th Coolest	Coolest since: 1940	1980
	53.4°F (11.9°C)	53.0°F (11.7°C)	0.4°F (0.2°C)	50th Warmest	Warmest since: 1942	2019
	Ties: 1937, 1938, 1945, 1950, 1975, 1976, 1986
Oct 1938–Sep 1943 60-Month	53.7°F (12.1°C)	53.1°F (11.7°C)	0.6°F (0.4°C)	85th Coolest	Coolest since: 1941	1982
	53.7°F (12.1°C)	53.1°F (11.7°C)	0.6°F (0.4°C)	39th Warmest	Warmest since: 1942	2020
	Ties: 1932, 1954, 1958, 1987, 1993

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings