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 7. East Southeast

Average Temperature Rankings, May 1979

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1979 1-Month	61.6°F (16.4°C)	63.2°F (17.3°C)	-1.6°F (-0.9°C)	40th Coolest	Coolest since: 1978	1924
	61.6°F (16.4°C)	63.2°F (17.3°C)	-1.6°F (-0.9°C)	89th Warmest	Warmest since: 1977	2018
	Ties: 2021
Apr–May 1979 2-Month	56.3°F (13.5°C)	58.0°F (14.4°C)	-1.7°F (-0.9°C)	27th Coolest	Coolest since: 1973	1907
	56.3°F (13.5°C)	58.0°F (14.4°C)	-1.7°F (-0.9°C)	102nd Warmest	Warmest since: 1978	1896
	Ties: 1989
Mar–May 1979 3-Month	51.5°F (10.8°C)	52.5°F (11.4°C)	-1.0°F (-0.6°C)	39th Coolest	Coolest since: 1978	1960
	51.5°F (10.8°C)	52.5°F (11.4°C)	-1.0°F (-0.6°C)	90th Warmest	Warmest since: 1977	2012
	Ties: 1915, 1975
Feb–May 1979 4-Month	43.4°F (6.3°C)	47.3°F (8.5°C)	-3.9°F (-2.2°C)	5th Coolest	Coolest since: 1978	1978
Feb–May 1979 4-Month	43.4°F (6.3°C)	47.3°F (8.5°C)	-3.9°F (-2.2°C)	124th Warmest	Warmest since: 1977	2012
Jan–May 1979 5-Month	37.8°F (3.2°C)	43.4°F (6.3°C)	-5.6°F (-3.1°C)	2nd Coolest	Coolest since: 1978	1978
Jan–May 1979 5-Month	37.8°F (3.2°C)	43.4°F (6.3°C)	-5.6°F (-3.1°C)	127th Warmest	Warmest since: 1977	2012
Dec 1978–May 1979 6-Month	37.0°F (2.8°C)	41.4°F (5.2°C)	-4.4°F (-2.4°C)	3rd Coolest	Coolest since: 1978	1978
Dec 1978–May 1979 6-Month	37.0°F (2.8°C)	41.4°F (5.2°C)	-4.4°F (-2.4°C)	125th Warmest	Warmest since: 1977	2012
Nov 1978–May 1979 7-Month	38.2°F (3.4°C)	41.5°F (5.3°C)	-3.3°F (-1.9°C)	5th Coolest	Coolest since: 1978	1978
Nov 1978–May 1979 7-Month	38.2°F (3.4°C)	41.5°F (5.3°C)	-3.3°F (-1.9°C)	123rd Warmest	Warmest since: 1977	2012
Oct 1978–May 1979 8-Month	40.1°F (4.5°C)	43.3°F (6.3°C)	-3.2°F (-1.8°C)	6th Coolest	Coolest since: 1978	1978
Oct 1978–May 1979 8-Month	40.1°F (4.5°C)	43.3°F (6.3°C)	-3.2°F (-1.8°C)	122nd Warmest	Warmest since: 1977	2012
Sep 1978–May 1979 9-Month	43.4°F (6.3°C)	45.9°F (7.7°C)	-2.5°F (-1.4°C)	5th Coolest	Coolest since: 1978	1978
	43.4°F (6.3°C)	45.9°F (7.7°C)	-2.5°F (-1.4°C)	123rd Warmest	Warmest since: 1977	2012
	Ties: 1912, 1977
Aug 1978–May 1979 10-Month	46.4°F (8.0°C)	48.8°F (9.3°C)	-2.4°F (-1.3°C)	6th Coolest	Coolest since: 1978	1978
	46.4°F (8.0°C)	48.8°F (9.3°C)	-2.4°F (-1.3°C)	122nd Warmest	Warmest since: 1976	2012
	Ties: 1912
Jul 1978–May 1979 11-Month	49.1°F (9.5°C)	51.3°F (10.7°C)	-2.2°F (-1.2°C)	7th Coolest	Coolest since: 1978	1904
	49.1°F (9.5°C)	51.3°F (10.7°C)	-2.2°F (-1.2°C)	121st Warmest	Warmest since: 1976	2012
	Ties: 1912, 1951
Jun 1978–May 1979 12-Month	51.1°F (10.6°C)	53.1°F (11.7°C)	-2.0°F (-1.1°C)	8th Coolest	Coolest since: 1978	1904
	51.1°F (10.6°C)	53.1°F (11.7°C)	-2.0°F (-1.1°C)	120th Warmest	Warmest since: 1976	2012
	Ties: 1905, 2014
Dec 1977–May 1979 18-Month	45.9°F (7.7°C)	49.2°F (9.6°C)	-3.3°F (-1.9°C)	1st Coolest	Coolest since: 1979	1979
Dec 1977–May 1979 18-Month	45.9°F (7.7°C)	49.2°F (9.6°C)	-3.3°F (-1.9°C)	126th Warmest	Warmest since: 1978	2017
Jun 1977–May 1979 24-Month	50.6°F (10.3°C)	53.1°F (11.7°C)	-2.5°F (-1.4°C)	3rd Coolest	Coolest since: 1978	1905, 1978
Jun 1977–May 1979 24-Month	50.6°F (10.3°C)	53.1°F (11.7°C)	-2.5°F (-1.4°C)	124th Warmest	Warmest since: 1977	2017
Jun 1976–May 1979 36-Month	50.6°F (10.3°C)	53.0°F (11.7°C)	-2.4°F (-1.4°C)	1st Coolest	Coolest since: 1979	1979
Jun 1976–May 1979 36-Month	50.6°F (10.3°C)	53.0°F (11.7°C)	-2.4°F (-1.4°C)	125th Warmest	Warmest since: 1978	2018
Jun 1975–May 1979 48-Month	51.5°F (10.8°C)	53.0°F (11.7°C)	-1.5°F (-0.9°C)	2nd Coolest	Coolest since: 1907	1980
	51.5°F (10.8°C)	53.0°F (11.7°C)	-1.5°F (-0.9°C)	123rd Warmest	Warmest since: 1978	2019
	Ties: 1907
Jun 1974–May 1979 60-Month	51.7°F (10.9°C)	53.0°F (11.7°C)	-1.3°F (-0.8°C)	3rd Coolest	Coolest since: 1908	1981
	51.7°F (10.9°C)	53.0°F (11.7°C)	-1.3°F (-0.8°C)	121st Warmest	Warmest since: 1978	2020
	Ties: 1908, 1982

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings