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 1989

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1989 1-Month	64.7°F (18.2°C)	67.4°F (19.7°C)	-2.7°F (-1.5°C)	17th Coolest	Coolest since: 1976	1918
	64.7°F (18.2°C)	67.4°F (19.7°C)	-2.7°F (-1.5°C)	112th Warmest	Warmest since: 1988	1925
	Ties: 1995, 2003
Aug–Sep 1989 2-Month	69.4°F (20.8°C)	70.9°F (21.6°C)	-1.5°F (-0.8°C)	27th Coolest	Coolest since: 1982	1967
Aug–Sep 1989 2-Month	69.4°F (20.8°C)	70.9°F (21.6°C)	-1.5°F (-0.8°C)	102nd Warmest	Warmest since: 1988	1936
Jul–Sep 1989 3-Month	71.5°F (21.9°C)	72.6°F (22.6°C)	-1.1°F (-0.7°C)	31st Coolest	Coolest since: 1985	1967
	71.5°F (21.9°C)	72.6°F (22.6°C)	-1.1°F (-0.7°C)	98th Warmest	Warmest since: 1988	1936
	Ties: 1928, 1929
Jun–Sep 1989 4-Month	71.6°F (22.0°C)	72.5°F (22.5°C)	-0.9°F (-0.5°C)	34th Coolest	Coolest since: 1985	1967
	71.6°F (22.0°C)	72.5°F (22.5°C)	-0.9°F (-0.5°C)	95th Warmest	Warmest since: 1988	1936
	Ties: 1963, 1997, 2000
May–Sep 1989 5-Month	69.3°F (20.7°C)	70.7°F (21.5°C)	-1.4°F (-0.8°C)	18th Coolest	Coolest since: 1981	1924
	69.3°F (20.7°C)	70.7°F (21.5°C)	-1.4°F (-0.8°C)	111th Warmest	Warmest since: 1988	1936
	Ties: 1958, 1981
Apr–Sep 1989 6-Month	66.5°F (19.2°C)	67.7°F (19.8°C)	-1.2°F (-0.6°C)	22nd Coolest	Coolest since: 1982	1907
	66.5°F (19.2°C)	67.7°F (19.8°C)	-1.2°F (-0.6°C)	107th Warmest	Warmest since: 1988	2010
	Ties: 1909, 1915
Mar–Sep 1989 7-Month	63.1°F (17.3°C)	64.0°F (17.8°C)	-0.9°F (-0.5°C)	32nd Coolest	Coolest since: 1984	1924
	63.1°F (17.3°C)	64.0°F (17.8°C)	-0.9°F (-0.5°C)	97th Warmest	Warmest since: 1988	2012
	Ties: 1927
Feb–Sep 1989 8-Month	58.5°F (14.7°C)	59.9°F (15.5°C)	-1.4°F (-0.8°C)	20th Coolest	Coolest since: 1982	1904, 1924
Feb–Sep 1989 8-Month	58.5°F (14.7°C)	59.9°F (15.5°C)	-1.4°F (-0.8°C)	109th Warmest	Warmest since: 1988	2012
Jan–Sep 1989 9-Month	56.1°F (13.4°C)	56.4°F (13.6°C)	-0.3°F (-0.2°C)	55th Coolest	Coolest since: 1985	1979
	56.1°F (13.4°C)	56.4°F (13.6°C)	-0.3°F (-0.2°C)	74th Warmest	Warmest since: 1988	2012
	Ties: 1901, 1906, 1909
Dec 1988–Sep 1989 10-Month	53.8°F (12.1°C)	53.9°F (12.2°C)	-0.1°F (-0.1°C)	58th Coolest	Coolest since: 1984	1904
	53.8°F (12.1°C)	53.9°F (12.2°C)	-0.1°F (-0.1°C)	70th Warmest	Warmest since: 1988	2012
	Ties: 1901, 1937, 1956, 1980
Nov 1988–Sep 1989 11-Month	52.8°F (11.6°C)	52.8°F (11.6°C)	0.0°F (0.0°C)	57th Coolest	Coolest since: 1985	1904
	52.8°F (11.6°C)	52.8°F (11.6°C)	0.0°F (0.0°C)	71st Warmest	Warmest since: 1988	2012
	Ties: 1903, 1916, 1936, 1975, 1981, 1985
Oct 1988–Sep 1989 12-Month	52.6°F (11.4°C)	53.1°F (11.7°C)	-0.5°F (-0.3°C)	40th Coolest	Coolest since: 1984	1904
	52.6°F (11.4°C)	53.1°F (11.7°C)	-0.5°F (-0.3°C)	88th Warmest	Warmest since: 1988	2012
	Ties: 1937, 1945, 1956, 1962
Apr 1988–Sep 1989 18-Month	58.3°F (14.6°C)	58.0°F (14.4°C)	0.3°F (0.2°C)	74th Coolest	Coolest since: 1985	1918
	58.3°F (14.6°C)	58.0°F (14.4°C)	0.3°F (0.2°C)	54th Warmest	Warmest since: 1988	2012
	Ties: 1943, 1956, 1964
Oct 1987–Sep 1989 24-Month	53.2°F (11.8°C)	53.1°F (11.7°C)	0.1°F (0.1°C)	71st Coolest	Coolest since: 1985	1979
	53.2°F (11.8°C)	53.1°F (11.7°C)	0.1°F (0.1°C)	56th Warmest	Warmest since: 1988	2017
	Ties: 1909, 1920, 1965, 1972, 1975, 1993, 1996, 2004, 2009
Oct 1986–Sep 1989 36-Month	53.7°F (12.1°C)	53.0°F (11.7°C)	0.7°F (0.4°C)	89th Coolest	Coolest since: 1986	1979
	53.7°F (12.1°C)	53.0°F (11.7°C)	0.7°F (0.4°C)	37th Warmest	Warmest since: 1988	2018
	Ties: 1936, 1939, 1944, 2011
Oct 1985–Sep 1989 48-Month	53.9°F (12.2°C)	53.1°F (11.7°C)	0.8°F (0.5°C)	98th Coolest	Coolest since: 1987	1980
	53.9°F (12.2°C)	53.1°F (11.7°C)	0.8°F (0.5°C)	27th Warmest	Warmest since: 1988	2019
	Ties: 1936, 1944, 1954, 1991, 1992, 1993, 2017
Oct 1984–Sep 1989 60-Month	53.8°F (12.1°C)	53.1°F (11.7°C)	0.7°F (0.4°C)	92nd Coolest	Coolest since: 1988	1982
	53.8°F (12.1°C)	53.1°F (11.7°C)	0.7°F (0.4°C)	32nd Warmest	Warmest since: 1957	2020
	Ties: 1942, 1990, 1995, 1999, 2000, 2017

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published February 2023, retrieved on February 9, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings