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, April 1985

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
April 1985 1-Month	59.1°F (15.1°C)	55.3°F (12.9°C)	3.8°F (2.2°C)	114th Coolest	Coolest since: 1984	1907
	59.1°F (15.1°C)	55.3°F (12.9°C)	3.8°F (2.2°C)	15th Warmest	Warmest since: 1981	1896
	Ties: 1941, 1986, 2011
Mar–Apr 1985 2-Month	54.0°F (12.2°C)	49.9°F (9.9°C)	4.1°F (2.3°C)	116th Coolest	Coolest since: 1984	1926, 1960
	54.0°F (12.2°C)	49.9°F (9.9°C)	4.1°F (2.3°C)	13th Warmest	Warmest since: 1977	2012
	Ties: 1991, 2006
Feb–Apr 1985 3-Month	45.9°F (7.7°C)	44.9°F (7.2°C)	1.0°F (0.5°C)	80th Coolest	Coolest since: 1984	1899
	45.9°F (7.7°C)	44.9°F (7.2°C)	1.0°F (0.5°C)	49th Warmest	Warmest since: 1981	2012
	Ties: 1896, 1994
Jan–Apr 1985 4-Month	40.2°F (4.6°C)	41.5°F (5.3°C)	-1.3°F (-0.7°C)	35th Coolest	Coolest since: 1984	1978
	40.2°F (4.6°C)	41.5°F (5.3°C)	-1.3°F (-0.7°C)	94th Warmest	Warmest since: 1983	2012
	Ties: 1926, 1937, 1951, 2018
Dec 1984–Apr 1985 5-Month	40.5°F (4.7°C)	40.1°F (4.5°C)	0.4°F (0.2°C)	67th Coolest	Coolest since: 1984	1978
Dec 1984–Apr 1985 5-Month	40.5°F (4.7°C)	40.1°F (4.5°C)	0.4°F (0.2°C)	61st Warmest	Warmest since: 1983	2012
Nov 1984–Apr 1985 6-Month	41.0°F (5.0°C)	40.8°F (4.9°C)	0.2°F (0.1°C)	56th Coolest	Coolest since: 1984	1912
	41.0°F (5.0°C)	40.8°F (4.9°C)	0.2°F (0.1°C)	72nd Warmest	Warmest since: 1983	2012
	Ties: 1898, 1930, 1943, 1952, 1973, 2008
Oct 1984–Apr 1985 7-Month	43.9°F (6.6°C)	43.3°F (6.3°C)	0.6°F (0.3°C)	80th Coolest	Coolest since: 1984	1899, 1978
	43.9°F (6.6°C)	43.3°F (6.3°C)	0.6°F (0.3°C)	48th Warmest	Warmest since: 1983	2012
	Ties: 1923
Sep 1984–Apr 1985 8-Month	46.7°F (8.2°C)	46.4°F (8.0°C)	0.3°F (0.2°C)	61st Coolest	Coolest since: 1984	1918
	46.7°F (8.2°C)	46.4°F (8.0°C)	0.3°F (0.2°C)	67th Warmest	Warmest since: 1983	2017
	Ties: 1903, 1908, 1911, 2018
Aug 1984–Apr 1985 9-Month	50.0°F (10.0°C)	49.7°F (9.8°C)	0.3°F (0.2°C)	68th Coolest	Coolest since: 1984	1918
	50.0°F (10.0°C)	49.7°F (9.8°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 1983	2017
	Ties: 1950, 1983, 2013
Jul 1984–Apr 1985 10-Month	52.6°F (11.4°C)	52.6°F (11.4°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1984	1918
	52.6°F (11.4°C)	52.6°F (11.4°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1983	2012
	Ties: 1903, 1988, 2009, 2018
Jun 1984–Apr 1985 11-Month	54.8°F (12.7°C)	54.5°F (12.5°C)	0.3°F (0.2°C)	69th Coolest	Coolest since: 1984	1918
	54.8°F (12.7°C)	54.5°F (12.5°C)	0.3°F (0.2°C)	59th Warmest	Warmest since: 1981	2012, 2017
	Ties: 1910, 1949, 1964, 1986, 1988, 1990
May 1984–Apr 1985 12-Month	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1984	1918
	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1983	2012, 2017
	Ties: 1897, 1900, 1925, 1956, 1990, 2009
Nov 1983–Apr 1985 18-Month	49.6°F (9.8°C)	50.5°F (10.3°C)	-0.9°F (-0.5°C)	22nd Coolest	Coolest since: 1980	1979
	49.6°F (9.8°C)	50.5°F (10.3°C)	-0.9°F (-0.5°C)	105th Warmest	Warmest since: 1984	2017
	Ties: 1903, 1941, 1951, 1959
May 1983–Apr 1985 24-Month	55.0°F (12.8°C)	55.4°F (13.0°C)	-0.4°F (-0.2°C)	32nd Coolest	Coolest since: 1983	1978
	55.0°F (12.8°C)	55.4°F (13.0°C)	-0.4°F (-0.2°C)	95th Warmest	Warmest since: 1984	2017
	Ties: 1911, 1926, 1937
May 1982–Apr 1985 36-Month	55.2°F (12.9°C)	55.4°F (13.0°C)	-0.2°F (-0.1°C)	44th Coolest	Coolest since: 1984	1979
	55.2°F (12.9°C)	55.4°F (13.0°C)	-0.2°F (-0.1°C)	82nd Warmest	Warmest since: 1983	2018
	Ties: 1902, 1931, 1959, 1986
May 1981–Apr 1985 48-Month	54.8°F (12.7°C)	55.4°F (13.0°C)	-0.6°F (-0.3°C)	22nd Coolest	Coolest since: 1982	1980
	54.8°F (12.7°C)	55.4°F (13.0°C)	-0.6°F (-0.3°C)	103rd Warmest	Warmest since: 1984	2019
	Ties: 1964, 1996
May 1980–Apr 1985 60-Month	55.2°F (12.9°C)	55.4°F (13.0°C)	-0.2°F (-0.1°C)	47th Coolest	Coolest since: 1984	1980, 1981
	55.2°F (12.9°C)	55.4°F (13.0°C)	-0.2°F (-0.1°C)	77th Warmest	Warmest since: 1976	2020
	Ties: 1916, 1931, 1998

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