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 5. East

Average Temperature Rankings, May 1980

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1980 1-Month	63.0°F (17.2°C)	61.0°F (16.1°C)	2.0°F (1.1°C)	88th Coolest	Coolest since: 1979	1907
	63.0°F (17.2°C)	61.0°F (16.1°C)	2.0°F (1.1°C)	41st Warmest	Warmest since: 1977	2018
	Ties: 1993
Apr–May 1980 2-Month	55.6°F (13.1°C)	55.4°F (13.0°C)	0.2°F (0.1°C)	56th Coolest	Coolest since: 1979	1907
	55.6°F (13.1°C)	55.4°F (13.0°C)	0.2°F (0.1°C)	73rd Warmest	Warmest since: 1977	1977
	Ties: 1913, 1952, 1956, 1960, 1976, 1993
Mar–May 1980 3-Month	48.4°F (9.1°C)	49.7°F (9.8°C)	-1.3°F (-0.7°C)	33rd Coolest	Coolest since: 1978	1960
	48.4°F (9.1°C)	49.7°F (9.8°C)	-1.3°F (-0.7°C)	96th Warmest	Warmest since: 1979	2012
	Ties: 1951, 2002
Feb–May 1980 4-Month	41.5°F (5.3°C)	44.1°F (6.7°C)	-2.6°F (-1.4°C)	14th Coolest	Coolest since: 1979	1978
	41.5°F (5.3°C)	44.1°F (6.7°C)	-2.6°F (-1.4°C)	115th Warmest	Warmest since: 1977	2012
	Ties: 1907, 1924
Jan–May 1980 5-Month	38.2°F (3.4°C)	40.1°F (4.5°C)	-1.9°F (-1.1°C)	20th Coolest	Coolest since: 1979	1978
	38.2°F (3.4°C)	40.1°F (4.5°C)	-1.9°F (-1.1°C)	109th Warmest	Warmest since: 1977	2012
	Ties: 1966, 1984
Dec 1979–May 1980 6-Month	37.3°F (2.9°C)	38.1°F (3.4°C)	-0.8°F (-0.5°C)	36th Coolest	Coolest since: 1979	1978
	37.3°F (2.9°C)	38.1°F (3.4°C)	-0.8°F (-0.5°C)	92nd Warmest	Warmest since: 1977	2012
	Ties: 1897, 1971
Nov 1979–May 1980 7-Month	37.6°F (3.1°C)	38.3°F (3.5°C)	-0.7°F (-0.4°C)	37th Coolest	Coolest since: 1979	1904
	37.6°F (3.1°C)	38.3°F (3.5°C)	-0.7°F (-0.4°C)	91st Warmest	Warmest since: 1976	2012
	Ties: 1924, 1948
Oct 1979–May 1980 8-Month	39.6°F (4.2°C)	40.3°F (4.6°C)	-0.7°F (-0.4°C)	35th Coolest	Coolest since: 1979	1904
	39.6°F (4.2°C)	40.3°F (4.6°C)	-0.7°F (-0.4°C)	93rd Warmest	Warmest since: 1976	2012
	Ties: 1906, 1962, 1971
Sep 1979–May 1980 9-Month	42.4°F (5.8°C)	43.0°F (6.1°C)	-0.6°F (-0.3°C)	34th Coolest	Coolest since: 1979	1904
	42.4°F (5.8°C)	43.0°F (6.1°C)	-0.6°F (-0.3°C)	94th Warmest	Warmest since: 1976	2012
	Ties: 1900, 1969
Aug 1979–May 1980 10-Month	45.3°F (7.4°C)	45.9°F (7.7°C)	-0.6°F (-0.3°C)	33rd Coolest	Coolest since: 1979	1904
	45.3°F (7.4°C)	45.9°F (7.7°C)	-0.6°F (-0.3°C)	95th Warmest	Warmest since: 1976	2012
	Ties: 1908, 1967, 1993
Jul 1979–May 1980 11-Month	47.7°F (8.7°C)	48.5°F (9.2°C)	-0.8°F (-0.5°C)	30th Coolest	Coolest since: 1979	1904
	47.7°F (8.7°C)	48.5°F (9.2°C)	-0.8°F (-0.5°C)	98th Warmest	Warmest since: 1976	2012
	Ties: 1993, 1996
Jun 1979–May 1980 12-Month	49.7°F (9.8°C)	50.3°F (10.2°C)	-0.6°F (-0.4°C)	34th Coolest	Coolest since: 1979	1904
	49.7°F (9.8°C)	50.3°F (10.2°C)	-0.6°F (-0.4°C)	94th Warmest	Warmest since: 1976	2012
	Ties: 1907, 1930, 1960
Dec 1978–May 1980 18-Month	44.3°F (6.8°C)	46.2°F (7.9°C)	-1.9°F (-1.1°C)	6th Coolest	Coolest since: 1979	1905
	44.3°F (6.8°C)	46.2°F (7.9°C)	-1.9°F (-1.1°C)	121st Warmest	Warmest since: 1977	2017
	Ties: 2015
Jun 1978–May 1980 24-Month	49.1°F (9.5°C)	50.3°F (10.2°C)	-1.2°F (-0.7°C)	12th Coolest	Coolest since: 1979	1905
	49.1°F (9.5°C)	50.3°F (10.2°C)	-1.2°F (-0.7°C)	115th Warmest	Warmest since: 1977	2017
	Ties: 1919
Jun 1977–May 1980 36-Month	48.5°F (9.2°C)	50.3°F (10.2°C)	-1.8°F (-1.0°C)	6th Coolest	Coolest since: 1979	1905, 1906
Jun 1977–May 1980 36-Month	48.5°F (9.2°C)	50.3°F (10.2°C)	-1.8°F (-1.0°C)	120th Warmest	Warmest since: 1978	2018
Jun 1976–May 1980 48-Month	48.5°F (9.2°C)	50.3°F (10.2°C)	-1.8°F (-1.0°C)	4th Coolest	Coolest since: 1907	1905
Jun 1976–May 1980 48-Month	48.5°F (9.2°C)	50.3°F (10.2°C)	-1.8°F (-1.0°C)	121st Warmest	Warmest since: 1979	2019
Jun 1975–May 1980 60-Month	49.2°F (9.6°C)	50.3°F (10.2°C)	-1.1°F (-0.6°C)	9th Coolest	Coolest since: 1979	1905, 1906, 1908
	49.2°F (9.6°C)	50.3°F (10.2°C)	-1.1°F (-0.6°C)	115th Warmest	Warmest since: 1979	2020
	Ties: 1979

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings