Statewide 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

Average Temperature Rankings, July 1987

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
July 1987 1-Month	77.3°F (25.2°C)	75.6°F (24.2°C)	1.7°F (1.0°C)	102nd Coolest	Coolest since: 1985	2009, 2014
	77.3°F (25.2°C)	75.6°F (24.2°C)	1.7°F (1.0°C)	27th Warmest	Warmest since: 1986	1936
	Ties: 1952, 2020
Jun–Jul 1987 2-Month	75.9°F (24.4°C)	73.4°F (23.0°C)	2.5°F (1.4°C)	113th Coolest	Coolest since: 1986	1915
	75.9°F (24.4°C)	73.4°F (23.0°C)	2.5°F (1.4°C)	16th Warmest	Warmest since: 1954	1934
	Ties: 1949
May–Jul 1987 3-Month	73.4°F (23.0°C)	69.7°F (20.9°C)	3.7°F (2.1°C)	124th Coolest	Coolest since: 1986	1924
May–Jul 1987 3-Month	73.4°F (23.0°C)	69.7°F (20.9°C)	3.7°F (2.1°C)	5th Warmest	Warmest since: 1936	1934
Apr–Jul 1987 4-Month	68.3°F (20.2°C)	65.1°F (18.4°C)	3.2°F (1.8°C)	122nd Coolest	Coolest since: 1986	1907
	68.3°F (20.2°C)	65.1°F (18.4°C)	3.2°F (1.8°C)	7th Warmest	Warmest since: 1977	1934
	Ties: 1896
Mar–Jul 1987 5-Month	63.5°F (17.5°C)	60.0°F (15.6°C)	3.5°F (1.9°C)	123rd Coolest	Coolest since: 1986	1960
Mar–Jul 1987 5-Month	63.5°F (17.5°C)	60.0°F (15.6°C)	3.5°F (1.9°C)	6th Warmest	Warmest since: 1977	2012
Feb–Jul 1987 6-Month	58.9°F (14.9°C)	55.0°F (12.8°C)	3.9°F (2.1°C)	125th Coolest	Coolest since: 1986	1947
Feb–Jul 1987 6-Month	58.9°F (14.9°C)	55.0°F (12.8°C)	3.9°F (2.1°C)	4th Warmest	Warmest since: 1921	2012
Jan–Jul 1987 7-Month	54.3°F (12.4°C)	50.7°F (10.4°C)	3.6°F (2.0°C)	125th Coolest	Coolest since: 1986	1912
Jan–Jul 1987 7-Month	54.3°F (12.4°C)	50.7°F (10.4°C)	3.6°F (2.0°C)	4th Warmest	Warmest since: 1921	2012
Dec 1986–Jul 1987 8-Month	51.5°F (10.8°C)	48.1°F (8.9°C)	3.4°F (1.9°C)	123rd Coolest	Coolest since: 1986	1904
Dec 1986–Jul 1987 8-Month	51.5°F (10.8°C)	48.1°F (8.9°C)	3.4°F (1.9°C)	5th Warmest	Warmest since: 1921	2012
Nov 1986–Jul 1987 9-Month	49.9°F (9.9°C)	47.2°F (8.4°C)	2.7°F (1.5°C)	117th Coolest	Coolest since: 1986	1904
	49.9°F (9.9°C)	47.2°F (8.4°C)	2.7°F (1.5°C)	11th Warmest	Warmest since: 1932	2012
	Ties: 2006
Oct 1986–Jul 1987 10-Month	50.5°F (10.3°C)	48.0°F (8.9°C)	2.5°F (1.4°C)	118th Coolest	Coolest since: 1986	1904
	50.5°F (10.3°C)	48.0°F (8.9°C)	2.5°F (1.4°C)	10th Warmest	Warmest since: 1954	2012
	Ties: 1954, 1998, 2006
Sep 1986–Jul 1987 11-Month	52.2°F (11.2°C)	49.7°F (9.8°C)	2.5°F (1.4°C)	119th Coolest	Coolest since: 1986	1904
	52.2°F (11.2°C)	49.7°F (9.8°C)	2.5°F (1.4°C)	9th Warmest	Warmest since: 1932	2012
	Ties: 2002
Aug 1986–Jul 1987 12-Month	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F (1.1°C)	116th Coolest	Coolest since: 1986	1904
	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F (1.1°C)	12th Warmest	Warmest since: 1954	2012
	Ties: 2000
Feb 1986–Jul 1987 18-Month	54.8°F (12.7°C)	52.7°F (11.5°C)	2.1°F (1.2°C)	119th Coolest	Coolest since: 1986	1918
	54.8°F (12.7°C)	52.7°F (11.5°C)	2.1°F (1.2°C)	9th Warmest	Warmest since: 1954	2012
	Ties: 1939, 1954, 1992
Aug 1985–Jul 1987 24-Month	52.9°F (11.6°C)	51.6°F (10.9°C)	1.3°F (0.7°C)	108th Coolest	Coolest since: 1986	1905
	52.9°F (11.6°C)	51.6°F (10.9°C)	1.3°F (0.7°C)	19th Warmest	Warmest since: 1955	2017
	Ties: 1934, 1988, 1991, 2016
Aug 1984–Jul 1987 36-Month	52.6°F (11.4°C)	51.6°F (10.9°C)	1.0°F (0.5°C)	101st Coolest	Coolest since: 1986	1979
	52.6°F (11.4°C)	51.6°F (10.9°C)	1.0°F (0.5°C)	25th Warmest	Warmest since: 1956	2018
	Ties: 1935, 1939, 1989, 1991, 2020, 2021
Aug 1983–Jul 1987 48-Month	52.2°F (11.2°C)	51.6°F (10.9°C)	0.6°F (0.3°C)	85th Coolest	Coolest since: 1986	1905, 1980
	52.2°F (11.2°C)	51.6°F (10.9°C)	0.6°F (0.3°C)	40th Warmest	Warmest since: 1957	2019
	Ties: 1940, 1999, 2011
Aug 1982–Jul 1987 60-Month	52.3°F (11.3°C)	51.6°F (10.9°C)	0.7°F (0.4°C)	89th Coolest	Coolest since: 1986	1906
	52.3°F (11.3°C)	51.6°F (10.9°C)	0.7°F (0.4°C)	35th Warmest	Warmest since: 1958	2020
	Ties: 1932, 1941, 1943, 1958, 1999, 2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings