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 1987

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1987 1-Month	69.8°F (21.0°C)	63.2°F (17.3°C)	6.6°F (3.7°C)	125th Coolest	Coolest since: 1986	1924
May 1987 1-Month	69.8°F (21.0°C)	63.2°F (17.3°C)	6.6°F (3.7°C)	4th Warmest	Warmest since: 1962	2018
Apr–May 1987 2-Month	61.7°F (16.5°C)	58.0°F (14.4°C)	3.7°F (2.1°C)	119th Coolest	Coolest since: 1986	1907
	61.7°F (16.5°C)	58.0°F (14.4°C)	3.7°F (2.1°C)	10th Warmest	Warmest since: 1977	1896
	Ties: 2004
Mar–May 1987 3-Month	56.4°F (13.6°C)	52.6°F (11.4°C)	3.8°F (2.2°C)	120th Coolest	Coolest since: 1986	1960
Mar–May 1987 3-Month	56.4°F (13.6°C)	52.6°F (11.4°C)	3.8°F (2.2°C)	9th Warmest	Warmest since: 1977	2012
Feb–May 1987 4-Month	51.4°F (10.8°C)	47.3°F (8.5°C)	4.1°F (2.3°C)	123rd Coolest	Coolest since: 1986	1978
Feb–May 1987 4-Month	51.4°F (10.8°C)	47.3°F (8.5°C)	4.1°F (2.3°C)	6th Warmest	Warmest since: 1938	2012
Jan–May 1987 5-Month	46.6°F (8.1°C)	43.4°F (6.3°C)	3.2°F (1.8°C)	119th Coolest	Coolest since: 1986	1978
Jan–May 1987 5-Month	46.6°F (8.1°C)	43.4°F (6.3°C)	3.2°F (1.8°C)	10th Warmest	Warmest since: 1946	2012
Dec 1986–May 1987 6-Month	44.3°F (6.8°C)	41.4°F (5.2°C)	2.9°F (1.6°C)	118th Coolest	Coolest since: 1986	1978
Dec 1986–May 1987 6-Month	44.3°F (6.8°C)	41.4°F (5.2°C)	2.9°F (1.6°C)	10th Warmest	Warmest since: 1932	2012
Nov 1986–May 1987 7-Month	43.6°F (6.4°C)	41.5°F (5.3°C)	2.1°F (1.1°C)	108th Coolest	Coolest since: 1986	1978
	43.6°F (6.4°C)	41.5°F (5.3°C)	2.1°F (1.1°C)	20th Warmest	Warmest since: 1976	2012
	Ties: 1954
Oct 1986–May 1987 8-Month	45.2°F (7.3°C)	43.3°F (6.3°C)	1.9°F (1.0°C)	105th Coolest	Coolest since: 1986	1978
	45.2°F (7.3°C)	43.3°F (6.3°C)	1.9°F (1.0°C)	23rd Warmest	Warmest since: 1976	2012
	Ties: 1974
Sep 1986–May 1987 9-Month	48.0°F (8.9°C)	46.0°F (7.8°C)	2.0°F (1.1°C)	113th Coolest	Coolest since: 1986	1978
	48.0°F (8.9°C)	46.0°F (7.8°C)	2.0°F (1.1°C)	15th Warmest	Warmest since: 1972	2012
	Ties: 1942, 1972, 1992
Aug 1986–May 1987 10-Month	50.3°F (10.2°C)	48.8°F (9.3°C)	1.5°F (0.9°C)	105th Coolest	Coolest since: 1986	1978
	50.3°F (10.2°C)	48.8°F (9.3°C)	1.5°F (0.9°C)	23rd Warmest	Warmest since: 1976	2012
	Ties: 2007, 2020
Jul 1986–May 1987 11-Month	52.9°F (11.6°C)	51.3°F (10.7°C)	1.6°F (0.9°C)	107th Coolest	Coolest since: 1986	1904
Jul 1986–May 1987 11-Month	52.9°F (11.6°C)	51.3°F (10.7°C)	1.6°F (0.9°C)	21st Warmest	Warmest since: 1974	2012
Jun 1986–May 1987 12-Month	54.7°F (12.6°C)	53.1°F (11.7°C)	1.6°F (0.9°C)	111th Coolest	Coolest since: 1986	1904
	54.7°F (12.6°C)	53.1°F (11.7°C)	1.6°F (0.9°C)	17th Warmest	Warmest since: 1955	2012
	Ties: 1935
Dec 1985–May 1987 18-Month	50.5°F (10.3°C)	49.2°F (9.6°C)	1.3°F (0.7°C)	103rd Coolest	Coolest since: 1986	1979
	50.5°F (10.3°C)	49.2°F (9.6°C)	1.3°F (0.7°C)	24th Warmest	Warmest since: 1974	2017
	Ties: 1950, 1953, 1974, 1988, 2003, 2020, 2021
Jun 1985–May 1987 24-Month	54.0°F (12.2°C)	53.1°F (11.7°C)	0.9°F (0.5°C)	98th Coolest	Coolest since: 1986	1905, 1978
	54.0°F (12.2°C)	53.1°F (11.7°C)	0.9°F (0.5°C)	29th Warmest	Warmest since: 1956	2017
	Ties: 1915, 1934, 1938, 2001, 2004
Jun 1984–May 1987 36-Month	54.0°F (12.2°C)	53.0°F (11.7°C)	1.0°F (0.5°C)	97th Coolest	Coolest since: 1986	1979
	54.0°F (12.2°C)	53.0°F (11.7°C)	1.0°F (0.5°C)	29th Warmest	Warmest since: 1957	2018
	Ties: 1991, 1993, 2005, 2021
Jun 1983–May 1987 48-Month	53.6°F (12.0°C)	53.0°F (11.7°C)	0.6°F (0.3°C)	83rd Coolest	Coolest since: 1986	1980
	53.6°F (12.0°C)	53.0°F (11.7°C)	0.6°F (0.3°C)	42nd Warmest	Warmest since: 1958	2019
	Ties: 1940, 1950, 1958, 1994, 1999
Jun 1982–May 1987 60-Month	53.5°F (11.9°C)	53.0°F (11.7°C)	0.5°F (0.2°C)	71st Coolest	Coolest since: 1986	1981
	53.5°F (11.9°C)	53.0°F (11.7°C)	0.5°F (0.2°C)	53rd Warmest	Warmest since: 1976	2020
	Ties: 1932, 1944, 1950, 1954

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings