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 8. Southwest

Average Temperature Rankings, June 1988

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
June 1988 1-Month	75.2°F (24.0°C)	73.9°F (23.3°C)	1.3°F (0.7°C)	87th Coolest	Coolest since: 1985	1903
	75.2°F (24.0°C)	73.9°F (23.3°C)	1.3°F (0.7°C)	42nd Warmest	Warmest since: 1987	1952
	Ties: 1964, 1981, 1998
May–Jun 1988 2-Month	70.7°F (21.5°C)	69.5°F (20.8°C)	1.2°F (0.7°C)	86th Coolest	Coolest since: 1985	1907
	70.7°F (21.5°C)	69.5°F (20.8°C)	1.2°F (0.7°C)	43rd Warmest	Warmest since: 1987	2018
	Ties: 1898
Apr–Jun 1988 3-Month	65.7°F (18.7°C)	64.7°F (18.2°C)	1.0°F (0.5°C)	82nd Coolest	Coolest since: 1985	1907
	65.7°F (18.7°C)	64.7°F (18.2°C)	1.0°F (0.5°C)	47th Warmest	Warmest since: 1987	2010
	Ties: 1895, 1970, 2009
Mar–Jun 1988 4-Month	60.5°F (15.8°C)	59.7°F (15.4°C)	0.8°F (0.4°C)	82nd Coolest	Coolest since: 1984	1960
	60.5°F (15.8°C)	59.7°F (15.4°C)	0.8°F (0.4°C)	47th Warmest	Warmest since: 1987	2012
	Ties: 2020
Feb–Jun 1988 5-Month	54.8°F (12.7°C)	54.7°F (12.6°C)	0.1°F (0.1°C)	60th Coolest	Coolest since: 1984	1912, 1960, 1978
	54.8°F (12.7°C)	54.7°F (12.6°C)	0.1°F (0.1°C)	69th Warmest	Warmest since: 1987	2012
	Ties: 1931, 1943, 1972
Jan–Jun 1988 6-Month	50.5°F (10.3°C)	50.8°F (10.4°C)	-0.3°F (-0.1°C)	53rd Coolest	Coolest since: 1985	1912
	50.5°F (10.3°C)	50.8°F (10.4°C)	-0.3°F (-0.1°C)	76th Warmest	Warmest since: 1987	2012
	Ties: 1994
Dec 1987–Jun 1988 7-Month	48.7°F (9.3°C)	48.5°F (9.2°C)	0.2°F (0.1°C)	63rd Coolest	Coolest since: 1985	1978
	48.7°F (9.3°C)	48.5°F (9.2°C)	0.2°F (0.1°C)	65th Warmest	Warmest since: 1987	2012
	Ties: 1973, 1975, 2015
Nov 1987–Jun 1988 8-Month	48.7°F (9.3°C)	48.0°F (8.9°C)	0.7°F (0.4°C)	77th Coolest	Coolest since: 1985	1912
	48.7°F (9.3°C)	48.0°F (8.9°C)	0.7°F (0.4°C)	51st Warmest	Warmest since: 1987	2012
	Ties: 1990, 2009
Oct 1987–Jun 1988 9-Month	49.1°F (9.5°C)	49.1°F (9.5°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1984	1912, 1978
	49.1°F (9.5°C)	49.1°F (9.5°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1987	2012
	Ties: 1901, 1913, 1965
Sep 1987–Jun 1988 10-Month	51.2°F (10.7°C)	51.1°F (10.6°C)	0.1°F (0.1°C)	59th Coolest	Coolest since: 1985	1978
	51.2°F (10.7°C)	51.1°F (10.6°C)	0.1°F (0.1°C)	69th Warmest	Warmest since: 1987	2012
	Ties: 1913, 1916, 1983
Aug 1987–Jun 1988 11-Month	53.6°F (12.0°C)	53.3°F (11.8°C)	0.3°F (0.2°C)	67th Coolest	Coolest since: 1985	1904, 1978
	53.6°F (12.0°C)	53.3°F (11.8°C)	0.3°F (0.2°C)	61st Warmest	Warmest since: 1987	2012
	Ties: 1950, 1990
Jul 1987–Jun 1988 12-Month	55.6°F (13.1°C)	55.4°F (13.0°C)	0.2°F (0.1°C)	67th Coolest	Coolest since: 1985	1904, 1918, 1978
	55.6°F (13.1°C)	55.4°F (13.0°C)	0.2°F (0.1°C)	61st Warmest	Warmest since: 1987	2012
	Ties: 1896, 1927, 1967, 1990, 2009
Jan 1987–Jun 1988 18-Month	54.9°F (12.7°C)	53.9°F (12.2°C)	1.0°F (0.5°C)	99th Coolest	Coolest since: 1986	1979
	54.9°F (12.7°C)	53.9°F (12.2°C)	1.0°F (0.5°C)	29th Warmest	Warmest since: 1987	2017
	Ties: 1935, 1974
Jul 1986–Jun 1988 24-Month	56.2°F (13.4°C)	55.4°F (13.0°C)	0.8°F (0.4°C)	95th Coolest	Coolest since: 1986	1978, 1979
	56.2°F (13.4°C)	55.4°F (13.0°C)	0.8°F (0.4°C)	32nd Warmest	Warmest since: 1987	2017
	Ties: 1943, 1953, 2003
Jul 1985–Jun 1988 36-Month	56.2°F (13.4°C)	55.4°F (13.0°C)	0.8°F (0.4°C)	97th Coolest	Coolest since: 1987	1979
	56.2°F (13.4°C)	55.4°F (13.0°C)	0.8°F (0.4°C)	29th Warmest	Warmest since: 1957	2018
	Ties: 1922, 1943, 1999, 2005
Jul 1984–Jun 1988 48-Month	56.0°F (13.3°C)	55.3°F (12.9°C)	0.7°F (0.4°C)	90th Coolest	Coolest since: 1987	1980
	56.0°F (13.3°C)	55.3°F (12.9°C)	0.7°F (0.4°C)	35th Warmest	Warmest since: 1957	2019
	Ties: 1937, 1940, 1941, 1989, 1991, 2004, 2011
Jul 1983–Jun 1988 60-Month	55.8°F (13.2°C)	55.3°F (12.9°C)	0.5°F (0.3°C)	77th Coolest	Coolest since: 1987	1980, 1981
	55.8°F (13.2°C)	55.3°F (12.9°C)	0.5°F (0.3°C)	47th Warmest	Warmest since: 1976	2020
	Ties: 1924, 1976, 1993, 1995, 1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on April 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings