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 1981

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
April 1981 1-Month	57.2°F (14.0°C)	51.3°F (10.7°C)	5.9°F (3.3°C)	122nd Coolest	Coolest since: 1980	2018
	57.2°F (14.0°C)	51.3°F (10.7°C)	5.9°F (3.3°C)	7th Warmest	Warmest since: 1977	2010
	Ties: 2001
Mar–Apr 1981 2-Month	49.4°F (9.7°C)	45.3°F (7.4°C)	4.1°F (2.3°C)	116th Coolest	Coolest since: 1980	1960
	49.4°F (9.7°C)	45.3°F (7.4°C)	4.1°F (2.3°C)	13th Warmest	Warmest since: 1977	2012
	Ties: 2016
Feb–Apr 1981 3-Month	42.9°F (6.1°C)	39.5°F (4.2°C)	3.4°F (1.9°C)	109th Coolest	Coolest since: 1980	1899
	42.9°F (6.1°C)	39.5°F (4.2°C)	3.4°F (1.9°C)	20th Warmest	Warmest since: 1977	2012
	Ties: 1990, 1992
Jan–Apr 1981 4-Month	38.6°F (3.7°C)	35.6°F (2.0°C)	3.0°F (1.7°C)	110th Coolest	Coolest since: 1980	1912
	38.6°F (3.7°C)	35.6°F (2.0°C)	3.0°F (1.7°C)	19th Warmest	Warmest since: 1976	2012
	Ties: 1991
Dec 1980–Apr 1981 5-Month	36.8°F (2.7°C)	34.2°F (1.2°C)	2.6°F (1.5°C)	106th Coolest	Coolest since: 1980	1978
Dec 1980–Apr 1981 5-Month	36.8°F (2.7°C)	34.2°F (1.2°C)	2.6°F (1.5°C)	22nd Warmest	Warmest since: 1976	2012
Nov 1980–Apr 1981 6-Month	37.6°F (3.1°C)	35.2°F (1.8°C)	2.4°F (1.3°C)	107th Coolest	Coolest since: 1980	1904, 1912, 1978
	37.6°F (3.1°C)	35.2°F (1.8°C)	2.4°F (1.3°C)	21st Warmest	Warmest since: 1976	2012
	Ties: 2004
Oct 1980–Apr 1981 7-Month	39.4°F (4.1°C)	37.9°F (3.3°C)	1.5°F (0.8°C)	98th Coolest	Coolest since: 1980	1912
	39.4°F (4.1°C)	37.9°F (3.3°C)	1.5°F (0.8°C)	30th Warmest	Warmest since: 1976	2012
	Ties: 1938, 1957
Sep 1980–Apr 1981 8-Month	42.9°F (6.1°C)	41.4°F (5.2°C)	1.5°F (0.9°C)	101st Coolest	Coolest since: 1980	1904, 1978
	42.9°F (6.1°C)	41.4°F (5.2°C)	1.5°F (0.9°C)	27th Warmest	Warmest since: 1976	2017
	Ties: 2004, 2022
Aug 1980–Apr 1981 9-Month	46.7°F (8.2°C)	45.0°F (7.2°C)	1.7°F (1.0°C)	106th Coolest	Coolest since: 1980	1978
	46.7°F (8.2°C)	45.0°F (7.2°C)	1.7°F (1.0°C)	22nd Warmest	Warmest since: 1976	2017
	Ties: 1987
Jul 1980–Apr 1981 10-Month	50.0°F (10.0°C)	48.1°F (8.9°C)	1.9°F (1.1°C)	113th Coolest	Coolest since: 1980	1904
	50.0°F (10.0°C)	48.1°F (8.9°C)	1.9°F (1.1°C)	15th Warmest	Warmest since: 1976	2012
	Ties: 1914
Jun 1980–Apr 1981 11-Month	51.9°F (11.1°C)	50.3°F (10.2°C)	1.6°F (0.9°C)	109th Coolest	Coolest since: 1980	1904
	51.9°F (11.1°C)	50.3°F (10.2°C)	1.6°F (0.9°C)	19th Warmest	Warmest since: 1976	2017
	Ties: 1922, 1987
May 1980–Apr 1981 12-Month	52.9°F (11.6°C)	51.3°F (10.7°C)	1.6°F (0.9°C)	109th Coolest	Coolest since: 1980	1918
	52.9°F (11.6°C)	51.3°F (10.7°C)	1.6°F (0.9°C)	19th Warmest	Warmest since: 1976	2017
	Ties: 1922, 1937, 1987
Nov 1979–Apr 1981 18-Month	46.7°F (8.2°C)	45.9°F (7.7°C)	0.8°F (0.5°C)	93rd Coolest	Coolest since: 1980	1979
	46.7°F (8.2°C)	45.9°F (7.7°C)	0.8°F (0.5°C)	34th Warmest	Warmest since: 1976	2017
	Ties: 1923, 2002, 2011
May 1979–Apr 1981 24-Month	51.7°F (10.9°C)	51.2°F (10.7°C)	0.5°F (0.2°C)	83rd Coolest	Coolest since: 1980	1905
	51.7°F (10.9°C)	51.2°F (10.7°C)	0.5°F (0.2°C)	44th Warmest	Warmest since: 1957	2017
	Ties: 1950
May 1978–Apr 1981 36-Month	50.8°F (10.4°C)	51.3°F (10.7°C)	-0.5°F (-0.3°C)	37th Coolest	Coolest since: 1980	1979
	50.8°F (10.4°C)	51.3°F (10.7°C)	-0.5°F (-0.3°C)	89th Warmest	Warmest since: 1976	2018
	Ties: 1964, 1968, 1982
May 1977–Apr 1981 48-Month	50.3°F (10.2°C)	51.2°F (10.7°C)	-0.9°F (-0.5°C)	11th Coolest	Coolest since: 1980	1980
	50.3°F (10.2°C)	51.2°F (10.7°C)	-0.9°F (-0.5°C)	114th Warmest	Warmest since: 1977	1935
	Ties: 1904, 1920, 1962, 1982, 1996
May 1976–Apr 1981 60-Month	50.0°F (10.0°C)	51.2°F (10.7°C)	-1.2°F (-0.7°C)	3rd Coolest	Coolest since: 1979	1906, 1979
	50.0°F (10.0°C)	51.2°F (10.7°C)	-1.2°F (-0.7°C)	121st Warmest	Warmest since: 1980	1935
	Ties: 1908, 1982

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