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 3. West

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	56.8°F (13.8°C)	51.3°F (10.7°C)	5.5°F (3.1°C)	119th Coolest	Coolest since: 1984	2018
April 1985 1-Month	56.8°F (13.8°C)	51.3°F (10.7°C)	5.5°F (3.1°C)	10th Warmest	Warmest since: 1981	2010
Mar–Apr 1985 2-Month	50.4°F (10.2°C)	45.3°F (7.4°C)	5.1°F (2.8°C)	121st Coolest	Coolest since: 1984	1960
Mar–Apr 1985 2-Month	50.4°F (10.2°C)	45.3°F (7.4°C)	5.1°F (2.8°C)	8th Warmest	Warmest since: 1977	2012
Feb–Apr 1985 3-Month	41.4°F (5.2°C)	39.5°F (4.2°C)	1.9°F (1.0°C)	98th Coolest	Coolest since: 1984	1899
	41.4°F (5.2°C)	39.5°F (4.2°C)	1.9°F (1.0°C)	31st Warmest	Warmest since: 1981	2012
	Ties: 1935, 1955, 1957, 1986
Jan–Apr 1985 4-Month	35.2°F (1.8°C)	35.6°F (2.0°C)	-0.4°F (-0.2°C)	56th Coolest	Coolest since: 1984	1912
	35.2°F (1.8°C)	35.6°F (2.0°C)	-0.4°F (-0.2°C)	73rd Warmest	Warmest since: 1984	2012
	Ties: 1914, 1984, 1997
Dec 1984–Apr 1985 5-Month	34.9°F (1.6°C)	34.2°F (1.2°C)	0.7°F (0.4°C)	77th Coolest	Coolest since: 1984	1978
	34.9°F (1.6°C)	34.2°F (1.2°C)	0.7°F (0.4°C)	51st Warmest	Warmest since: 1983	2012
	Ties: 1945, 1989
Nov 1984–Apr 1985 6-Month	35.9°F (2.2°C)	35.2°F (1.8°C)	0.7°F (0.4°C)	77th Coolest	Coolest since: 1984	1904, 1912, 1978
	35.9°F (2.2°C)	35.2°F (1.8°C)	0.7°F (0.4°C)	51st Warmest	Warmest since: 1983	2012
	Ties: 1903
Oct 1984–Apr 1985 7-Month	38.9°F (3.8°C)	38.0°F (3.3°C)	0.9°F (0.5°C)	89th Coolest	Coolest since: 1984	1912
	38.9°F (3.8°C)	38.0°F (3.3°C)	0.9°F (0.5°C)	39th Warmest	Warmest since: 1983	2012
	Ties: 1928, 1966, 2021
Sep 1984–Apr 1985 8-Month	42.0°F (5.6°C)	41.5°F (5.3°C)	0.5°F (0.3°C)	76th Coolest	Coolest since: 1984	1904, 1978
	42.0°F (5.6°C)	41.5°F (5.3°C)	0.5°F (0.3°C)	52nd Warmest	Warmest since: 1983	2017
	Ties: 1908
Aug 1984–Apr 1985 9-Month	45.6°F (7.6°C)	45.0°F (7.2°C)	0.6°F (0.4°C)	75th Coolest	Coolest since: 1984	1978
	45.6°F (7.6°C)	45.0°F (7.2°C)	0.6°F (0.4°C)	53rd Warmest	Warmest since: 1983	2017
	Ties: 1915
Jul 1984–Apr 1985 10-Month	48.4°F (9.1°C)	48.1°F (8.9°C)	0.3°F (0.2°C)	73rd Coolest	Coolest since: 1984	1904
	48.4°F (9.1°C)	48.1°F (8.9°C)	0.3°F (0.2°C)	55th Warmest	Warmest since: 1983	2012
	Ties: 1907, 1908, 1972, 1988, 2013
Jun 1984–Apr 1985 11-Month	50.7°F (10.4°C)	50.2°F (10.1°C)	0.5°F (0.3°C)	77th Coolest	Coolest since: 1984	1904
	50.7°F (10.4°C)	50.2°F (10.1°C)	0.5°F (0.3°C)	51st Warmest	Warmest since: 1983	2017
	Ties: 1946, 1949, 1950, 1983
May 1984–Apr 1985 12-Month	51.4°F (10.8°C)	51.2°F (10.7°C)	0.2°F (0.1°C)	67th Coolest	Coolest since: 1984	1918
	51.4°F (10.8°C)	51.2°F (10.7°C)	0.2°F (0.1°C)	61st Warmest	Warmest since: 1983	2017
	Ties: 1907
Nov 1983–Apr 1985 18-Month	45.3°F (7.4°C)	45.8°F (7.7°C)	-0.5°F (-0.3°C)	36th Coolest	Coolest since: 1982	1979
	45.3°F (7.4°C)	45.8°F (7.7°C)	-0.5°F (-0.3°C)	91st Warmest	Warmest since: 1984	2017
	Ties: 1926, 1927, 1975
May 1983–Apr 1985 24-Month	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	50th Coolest	Coolest since: 1983	1905
	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	77th Warmest	Warmest since: 1984	2017
	Ties: 1902, 1907, 1916, 1928, 1936, 2011
May 1982–Apr 1985 36-Month	51.5°F (10.8°C)	51.2°F (10.7°C)	0.3°F (0.1°C)	73rd Coolest	Coolest since: 1984	1979
	51.5°F (10.8°C)	51.2°F (10.7°C)	0.3°F (0.1°C)	53rd Warmest	Warmest since: 1976	2018
	Ties: 1898, 1947, 1958, 1966
May 1981–Apr 1985 48-Month	50.9°F (10.5°C)	51.3°F (10.7°C)	-0.4°F (-0.2°C)	36th Coolest	Coolest since: 1982	1980
	50.9°F (10.5°C)	51.3°F (10.7°C)	-0.4°F (-0.2°C)	89th Warmest	Warmest since: 1984	1935
	Ties: 1901, 1926, 1930, 1953, 1977, 1998
May 1980–Apr 1985 60-Month	51.3°F (10.7°C)	51.2°F (10.7°C)	0.1°F (0.0°C)	56th Coolest	Coolest since: 1984	1906, 1979
	51.3°F (10.7°C)	51.2°F (10.7°C)	0.1°F (0.0°C)	68th Warmest	Warmest since: 1976	1935
	Ties: 1926, 1931, 1967, 1994

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings