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 1931

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1931 1-Month	72.6°F (22.6°C)	67.4°F (19.7°C)	5.2°F (2.9°C)	125th Coolest	Coolest since: 1930	1918
September 1931 1-Month	72.6°F (22.6°C)	67.4°F (19.7°C)	5.2°F (2.9°C)	4th Warmest	Warmest since: 1925	1925
Aug–Sep 1931 2-Month	73.4°F (23.0°C)	70.8°F (21.6°C)	2.6°F (1.4°C)	112th Coolest	Coolest since: 1930	1967
	73.4°F (23.0°C)	70.8°F (21.6°C)	2.6°F (1.4°C)	17th Warmest	Warmest since: 1925	1936
	Ties: 1906, 1955
Jul–Sep 1931 3-Month	75.4°F (24.1°C)	72.7°F (22.6°C)	2.7°F (1.5°C)	122nd Coolest	Coolest since: 1930	1967
	75.4°F (24.1°C)	72.7°F (22.6°C)	2.7°F (1.5°C)	7th Warmest	Warmest to Date	1936
	Ties: 1933
Jun–Sep 1931 4-Month	75.4°F (24.1°C)	72.6°F (22.6°C)	2.8°F (1.5°C)	123rd Coolest	Coolest since: 1930	1967
	75.4°F (24.1°C)	72.6°F (22.6°C)	2.8°F (1.5°C)	6th Warmest	Warmest since: 1921	1936
	Ties: 2010
May–Sep 1931 5-Month	72.2°F (22.3°C)	70.7°F (21.5°C)	1.5°F (0.8°C)	102nd Coolest	Coolest since: 1929	1924
May–Sep 1931 5-Month	72.2°F (22.3°C)	70.7°F (21.5°C)	1.5°F (0.8°C)	27th Warmest	Warmest since: 1930	1936
Apr–Sep 1931 6-Month	69.1°F (20.6°C)	67.7°F (19.8°C)	1.4°F (0.8°C)	99th Coolest	Coolest since: 1929	1907
	69.1°F (20.6°C)	67.7°F (19.8°C)	1.4°F (0.8°C)	30th Warmest	Warmest since: 1930	2010
	Ties: 1953, 2011, 2019
Mar–Sep 1931 7-Month	64.5°F (18.1°C)	64.0°F (17.8°C)	0.5°F (0.3°C)	80th Coolest	Coolest since: 1929	1924
	64.5°F (18.1°C)	64.0°F (17.8°C)	0.5°F (0.3°C)	49th Warmest	Warmest since: 1930	2012
	Ties: 1948, 1999, 2001, 2015
Feb–Sep 1931 8-Month	61.1°F (16.2°C)	59.9°F (15.5°C)	1.2°F (0.7°C)	98th Coolest	Coolest since: 1929	1904, 1924
Feb–Sep 1931 8-Month	61.1°F (16.2°C)	59.9°F (15.5°C)	1.2°F (0.7°C)	31st Warmest	Warmest since: 1930	2012
Jan–Sep 1931 9-Month	58.0°F (14.4°C)	56.4°F (13.6°C)	1.6°F (0.8°C)	106th Coolest	Coolest since: 1930	1979
	58.0°F (14.4°C)	56.4°F (13.6°C)	1.6°F (0.8°C)	23rd Warmest	Warmest since: 1925	2012
	Ties: 1932
Dec 1930–Sep 1931 10-Month	55.3°F (12.9°C)	53.9°F (12.2°C)	1.4°F (0.7°C)	100th Coolest	Coolest since: 1930	1904
	55.3°F (12.9°C)	53.9°F (12.2°C)	1.4°F (0.7°C)	28th Warmest	Warmest since: 1925	2012
	Ties: 1941, 1952
Nov 1930–Sep 1931 11-Month	54.2°F (12.3°C)	52.9°F (11.6°C)	1.3°F (0.7°C)	102nd Coolest	Coolest since: 1930	1904
	54.2°F (12.3°C)	52.9°F (11.6°C)	1.3°F (0.7°C)	26th Warmest	Warmest since: 1925	2012
	Ties: 1925, 1939, 1949, 2021, 2022
Oct 1930–Sep 1931 12-Month	54.1°F (12.3°C)	53.1°F (11.7°C)	1.0°F (0.6°C)	95th Coolest	Coolest since: 1930	1904
	54.1°F (12.3°C)	53.1°F (11.7°C)	1.0°F (0.6°C)	33rd Warmest	Warmest since: 1925	2012
	Ties: 1934, 1949, 1957, 1972, 2004
Apr 1930–Sep 1931 18-Month	59.2°F (15.1°C)	57.9°F (14.4°C)	1.3°F (0.7°C)	103rd Coolest	Coolest since: 1930	1918
	59.2°F (15.1°C)	57.9°F (14.4°C)	1.3°F (0.7°C)	25th Warmest	Warmest since: 1922	2012
	Ties: 1933, 1935, 1939, 1988
Oct 1929–Sep 1931 24-Month	53.8°F (12.1°C)	53.1°F (11.7°C)	0.7°F (0.4°C)	93rd Coolest	Coolest since: 1930	1979
	53.8°F (12.1°C)	53.1°F (11.7°C)	0.7°F (0.4°C)	34th Warmest	Warmest since: 1922	2017
	Ties: 1943, 1986, 1998, 2001, 2020
Oct 1928–Sep 1931 36-Month	53.4°F (11.9°C)	53.1°F (11.7°C)	0.3°F (0.2°C)	77th Coolest	Coolest since: 1930	1979
	53.4°F (11.9°C)	53.1°F (11.7°C)	0.3°F (0.2°C)	49th Warmest	Warmest since: 1923	2018
	Ties: 1915, 1940, 1976, 1990
Oct 1927–Sep 1931 48-Month	53.1°F (11.7°C)	53.0°F (11.7°C)	0.1°F (0.0°C)	53rd Coolest	Coolest since: 1930	1980
	53.1°F (11.7°C)	53.0°F (11.7°C)	0.1°F (0.0°C)	72nd Warmest	Warmest since: 1925	2019
	Ties: 1914, 1948, 1952, 2016
Oct 1926–Sep 1931 60-Month	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	50th Coolest	Coolest since: 1930	1982
	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1925	2020
	Ties: 1917, 1951, 1974, 1977, 1986, 1996

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