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 1984

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1984 1-Month	65.0°F (18.3°C)	67.4°F (19.7°C)	-2.4°F (-1.4°C)	21st Coolest	Coolest since: 1976	1918
	65.0°F (18.3°C)	67.4°F (19.7°C)	-2.4°F (-1.4°C)	108th Warmest	Warmest since: 1983	1925
	Ties: 2011
Aug–Sep 1984 2-Month	70.0°F (21.1°C)	70.8°F (21.6°C)	-0.8°F (-0.5°C)	42nd Coolest	Coolest since: 1982	1967
	70.0°F (21.1°C)	70.8°F (21.6°C)	-0.8°F (-0.5°C)	87th Warmest	Warmest since: 1983	1936
	Ties: 1996, 2006, 2012
Jul–Sep 1984 3-Month	71.3°F (21.8°C)	72.6°F (22.6°C)	-1.3°F (-0.8°C)	26th Coolest	Coolest since: 1982	1967
	71.3°F (21.8°C)	72.6°F (22.6°C)	-1.3°F (-0.8°C)	103rd Warmest	Warmest since: 1983	1936
	Ties: 1985, 1996
Jun–Sep 1984 4-Month	72.6°F (22.6°C)	72.6°F (22.6°C)	0.0°F (0.0°C)	59th Coolest	Coolest since: 1982	1967
	72.6°F (22.6°C)	72.6°F (22.6°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 1983	1936
	Ties: 2006
May–Sep 1984 5-Month	70.1°F (21.2°C)	70.7°F (21.5°C)	-0.6°F (-0.3°C)	40th Coolest	Coolest since: 1982	1924
	70.1°F (21.2°C)	70.7°F (21.5°C)	-0.6°F (-0.3°C)	89th Warmest	Warmest since: 1983	1936
	Ties: 1912, 1968, 1969, 1971, 2008
Apr–Sep 1984 6-Month	66.9°F (19.4°C)	67.7°F (19.8°C)	-0.8°F (-0.4°C)	34th Coolest	Coolest since: 1982	1907
	66.9°F (19.4°C)	67.7°F (19.8°C)	-0.8°F (-0.4°C)	95th Warmest	Warmest since: 1983	2010
	Ties: 1990
Mar–Sep 1984 7-Month	62.3°F (16.8°C)	64.0°F (17.8°C)	-1.7°F (-1.0°C)	11th Coolest	Coolest since: 1960	1924
Mar–Sep 1984 7-Month	62.3°F (16.8°C)	64.0°F (17.8°C)	-1.7°F (-1.0°C)	118th Warmest	Warmest since: 1983	2012
Feb–Sep 1984 8-Month	59.1°F (15.1°C)	59.9°F (15.5°C)	-0.8°F (-0.4°C)	31st Coolest	Coolest since: 1982	1904, 1924
	59.1°F (15.1°C)	59.9°F (15.5°C)	-0.8°F (-0.4°C)	98th Warmest	Warmest since: 1983	2012
	Ties: 1910, 1916, 1937, 1969, 1971, 2015
Jan–Sep 1984 9-Month	55.2°F (12.9°C)	56.4°F (13.6°C)	-1.2°F (-0.7°C)	24th Coolest	Coolest since: 1982	1979
	55.2°F (12.9°C)	56.4°F (13.6°C)	-1.2°F (-0.7°C)	105th Warmest	Warmest since: 1983	2012
	Ties: 1915, 1929, 1971
Dec 1983–Sep 1984 10-Month	51.6°F (10.9°C)	53.8°F (12.1°C)	-2.2°F (-1.2°C)	8th Coolest	Coolest since: 1982	1904
Dec 1983–Sep 1984 10-Month	51.6°F (10.9°C)	53.8°F (12.1°C)	-2.2°F (-1.2°C)	120th Warmest	Warmest since: 1983	2012
Nov 1983–Sep 1984 11-Month	51.1°F (10.6°C)	52.8°F (11.6°C)	-1.7°F (-1.0°C)	13th Coolest	Coolest since: 1982	1904
	51.1°F (10.6°C)	52.8°F (11.6°C)	-1.7°F (-1.0°C)	115th Warmest	Warmest since: 1983	2012
	Ties: 1940
Oct 1983–Sep 1984 12-Month	51.5°F (10.8°C)	53.0°F (11.7°C)	-1.5°F (-0.9°C)	12th Coolest	Coolest since: 1982	1904
	51.5°F (10.8°C)	53.0°F (11.7°C)	-1.5°F (-0.9°C)	116th Warmest	Warmest since: 1983	2012
	Ties: 1917, 1920, 1926, 1958, 1977, 1996
Apr 1983–Sep 1984 18-Month	57.0°F (13.9°C)	58.0°F (14.4°C)	-1.0°F (-0.5°C)	20th Coolest	Coolest since: 1982	1918
	57.0°F (13.9°C)	58.0°F (14.4°C)	-1.0°F (-0.5°C)	108th Warmest	Warmest since: 1983	2012
	Ties: 1928, 1958, 1962, 1970, 1996, 1997
Oct 1982–Sep 1984 24-Month	53.1°F (11.7°C)	53.1°F (11.7°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1983	1979
	53.1°F (11.7°C)	53.1°F (11.7°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1976	2017
	Ties: 1915, 1926, 1940, 1941, 1945, 1990
Oct 1981–Sep 1984 36-Month	52.4°F (11.3°C)	53.0°F (11.7°C)	-0.6°F (-0.4°C)	24th Coolest	Coolest since: 1982	1979
	52.4°F (11.3°C)	53.0°F (11.7°C)	-0.6°F (-0.4°C)	102nd Warmest	Warmest since: 1983	2018
	Ties: 1968
Oct 1980–Sep 1984 48-Month	52.5°F (11.4°C)	53.0°F (11.7°C)	-0.5°F (-0.3°C)	24th Coolest	Coolest since: 1982	1980
	52.5°F (11.4°C)	53.0°F (11.7°C)	-0.5°F (-0.3°C)	101st Warmest	Warmest since: 1983	2019
	Ties: 1927, 1962
Oct 1979–Sep 1984 60-Month	52.6°F (11.4°C)	53.0°F (11.7°C)	-0.4°F (-0.3°C)	27th Coolest	Coolest since: 1983	1982
	52.6°F (11.4°C)	53.0°F (11.7°C)	-0.4°F (-0.3°C)	97th Warmest	Warmest since: 1977	2020
	Ties: 1900, 1909, 1910, 1927, 1961, 1965, 1997

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings