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 1911

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1911 1-Month	70.8°F (21.6°C)	67.4°F (19.7°C)	3.4°F (1.9°C)	110th Coolest	Coolest since: 1910	1918
	70.8°F (21.6°C)	67.4°F (19.7°C)	3.4°F (1.9°C)	19th Warmest	Warmest since: 1897	1925
	Ties: 1986
Aug–Sep 1911 2-Month	72.4°F (22.4°C)	70.8°F (21.6°C)	1.6°F (0.8°C)	94th Coolest	Coolest since: 1910	1967
Aug–Sep 1911 2-Month	72.4°F (22.4°C)	70.8°F (21.6°C)	1.6°F (0.8°C)	35th Warmest	Warmest since: 1908	1936
Jul–Sep 1911 3-Month	73.7°F (23.2°C)	72.7°F (22.6°C)	1.0°F (0.6°C)	92nd Coolest	Coolest since: 1910	1967
	73.7°F (23.2°C)	72.7°F (22.6°C)	1.0°F (0.6°C)	37th Warmest	Warmest since: 1908	1936
	Ties: 1908, 1995
Jun–Sep 1911 4-Month	74.1°F (23.4°C)	72.6°F (22.6°C)	1.5°F (0.8°C)	104th Coolest	Coolest since: 1910	1967
	74.1°F (23.4°C)	72.6°F (22.6°C)	1.5°F (0.8°C)	25th Warmest	Warmest since: 1901	1936
	Ties: 1991, 1998
May–Sep 1911 5-Month	72.9°F (22.7°C)	70.7°F (21.5°C)	2.2°F (1.2°C)	114th Coolest	Coolest since: 1910	1924
	72.9°F (22.7°C)	70.7°F (21.5°C)	2.2°F (1.2°C)	15th Warmest	Warmest to Date	1936
	Ties: 1988, 1998
Apr–Sep 1911 6-Month	69.2°F (20.7°C)	67.8°F (19.9°C)	1.4°F (0.8°C)	103rd Coolest	Coolest since: 1910	1907
	69.2°F (20.7°C)	67.8°F (19.9°C)	1.4°F (0.8°C)	26th Warmest	Warmest since: 1896	2010
	Ties: 1896, 1922, 1944
Mar–Sep 1911 7-Month	65.2°F (18.4°C)	64.0°F (17.8°C)	1.2°F (0.6°C)	98th Coolest	Coolest since: 1910	1924
	65.2°F (18.4°C)	64.0°F (17.8°C)	1.2°F (0.6°C)	31st Warmest	Warmest to Date	2012
	Ties: 2022
Feb–Sep 1911 8-Month	61.5°F (16.4°C)	59.9°F (15.5°C)	1.6°F (0.9°C)	105th Coolest	Coolest since: 1910	1904, 1924
	61.5°F (16.4°C)	59.9°F (15.5°C)	1.6°F (0.9°C)	24th Warmest	Warmest to Date	2012
	Ties: 2011
Jan–Sep 1911 9-Month	58.2°F (14.6°C)	56.4°F (13.6°C)	1.8°F (1.0°C)	111th Coolest	Coolest since: 1910	1979
	58.2°F (14.6°C)	56.4°F (13.6°C)	1.8°F (1.0°C)	18th Warmest	Warmest to Date	2012
	Ties: 1986
Dec 1910–Sep 1911 10-Month	55.1°F (12.8°C)	53.9°F (12.2°C)	1.2°F (0.6°C)	95th Coolest	Coolest since: 1910	1904
	55.1°F (12.8°C)	53.9°F (12.2°C)	1.2°F (0.6°C)	33rd Warmest	Warmest to Date	2012
	Ties: 1914, 1949, 2018, 2019
Nov 1910–Sep 1911 11-Month	53.5°F (11.9°C)	52.9°F (11.6°C)	0.6°F (0.3°C)	86th Coolest	Coolest since: 1910	1904
	53.5°F (11.9°C)	52.9°F (11.6°C)	0.6°F (0.3°C)	42nd Warmest	Warmest to Date	2012
	Ties: 1944, 1952, 1957, 2019
Oct 1910–Sep 1911 12-Month	53.8°F (12.1°C)	53.1°F (11.7°C)	0.7°F (0.4°C)	84th Coolest	Coolest since: 1910	1904
	53.8°F (12.1°C)	53.1°F (11.7°C)	0.7°F (0.4°C)	44th Warmest	Warmest since: 1898	2012
	Ties: 1898, 1935, 1952, 1964
Apr 1910–Sep 1911 18-Month	57.8°F (14.3°C)	58.0°F (14.4°C)	-0.2°F (-0.1°C)	49th Coolest	Coolest since: 1910	1918
	57.8°F (14.3°C)	58.0°F (14.4°C)	-0.2°F (-0.1°C)	79th Warmest	Warmest since: 1909	2012
	Ties: 1971
Oct 1909–Sep 1911 24-Month	52.9°F (11.6°C)	53.0°F (11.7°C)	-0.1°F (-0.1°C)	49th Coolest	Coolest since: 1910	1979
	52.9°F (11.6°C)	53.0°F (11.7°C)	-0.1°F (-0.1°C)	78th Warmest	Warmest since: 1909	2017
	Ties: 1925, 1983
Oct 1908–Sep 1911 36-Month	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	53rd Coolest	Coolest since: 1910	1979
	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1898	2018
	Ties: 1898, 1925, 1959, 1986, 1998
Oct 1907–Sep 1911 48-Month	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	51st Coolest	Coolest since: 1910	1980
	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	74th Warmest	Warmest to Date	2019
	Ties: 1977
Oct 1906–Sep 1911 60-Month	52.8°F (11.6°C)	53.0°F (11.7°C)	-0.2°F (-0.1°C)	43rd Coolest	Coolest since: 1910	1982
	52.8°F (11.6°C)	53.0°F (11.7°C)	-0.2°F (-0.1°C)	81st Warmest	Warmest since: 1901	2020
	Ties: 1901, 1916

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