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 1901

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
July 1901 1-Month	81.5°F (27.5°C)	75.6°F (24.2°C)	5.9°F (3.3°C)	126th Coolest	Coolest since: 1900	2009, 2014
July 1901 1-Month	81.5°F (27.5°C)	75.6°F (24.2°C)	5.9°F (3.3°C)	3rd Warmest	Warmest to Date	1936
Jun–Jul 1901 2-Month	77.8°F (25.4°C)	73.5°F (23.1°C)	4.3°F (2.3°C)	127th Coolest	Coolest since: 1900	1915, 1958
Jun–Jul 1901 2-Month	77.8°F (25.4°C)	73.5°F (23.1°C)	4.3°F (2.3°C)	2nd Warmest	Warmest to Date	1934
May–Jul 1901 3-Month	72.1°F (22.3°C)	69.7°F (20.9°C)	2.4°F (1.4°C)	115th Coolest	Coolest since: 1900	1924
	72.1°F (22.3°C)	69.7°F (20.9°C)	2.4°F (1.4°C)	14th Warmest	Warmest to Date	1934
	Ties: 1949
Apr–Jul 1901 4-Month	66.4°F (19.1°C)	65.2°F (18.4°C)	1.2°F (0.7°C)	99th Coolest	Coolest since: 1900	1907
	66.4°F (19.1°C)	65.2°F (18.4°C)	1.2°F (0.7°C)	30th Warmest	Warmest since: 1896	1934
	Ties: 1922, 1932, 1959, 2016, 2018
Mar–Jul 1901 5-Month	60.7°F (15.9°C)	60.1°F (15.6°C)	0.6°F (0.3°C)	77th Coolest	Coolest since: 1900	1960
	60.7°F (15.9°C)	60.1°F (15.6°C)	0.6°F (0.3°C)	52nd Warmest	Warmest since: 1896	2012
	Ties: 1918, 2015
Feb–Jul 1901 6-Month	54.1°F (12.3°C)	55.0°F (12.8°C)	-0.9°F (-0.5°C)	40th Coolest	Coolest since: 1900	1947
	54.1°F (12.3°C)	55.0°F (12.8°C)	-0.9°F (-0.5°C)	89th Warmest	Warmest since: 1898	2012
	Ties: 1929, 1961, 1971
Jan–Jul 1901 7-Month	50.4°F (10.2°C)	50.7°F (10.4°C)	-0.3°F (-0.2°C)	56th Coolest	Coolest since: 1900	1912
	50.4°F (10.2°C)	50.7°F (10.4°C)	-0.3°F (-0.2°C)	73rd Warmest	Warmest since: 1898	2012
	Ties: 1903, 1945, 1975
Dec 1900–Jul 1901 8-Month	48.0°F (8.9°C)	48.1°F (8.9°C)	-0.1°F (0.0°C)	61st Coolest	Coolest since: 1900	1904
	48.0°F (8.9°C)	48.1°F (8.9°C)	-0.1°F (0.0°C)	67th Warmest	Warmest since: 1898	2012
	Ties: 1972
Nov 1900–Jul 1901 9-Month	47.0°F (8.3°C)	47.2°F (8.4°C)	-0.2°F (-0.1°C)	52nd Coolest	Coolest since: 1900	1904
	47.0°F (8.3°C)	47.2°F (8.4°C)	-0.2°F (-0.1°C)	76th Warmest	Warmest since: 1898	2012
	Ties: 1910, 1916, 1943, 1959, 1965
Oct 1900–Jul 1901 10-Month	48.4°F (9.1°C)	48.0°F (8.9°C)	0.4°F (0.2°C)	74th Coolest	Coolest since: 1900	1904
	48.4°F (9.1°C)	48.0°F (8.9°C)	0.4°F (0.2°C)	54th Warmest	Warmest since: 1898	2012
	Ties: 1913, 1944, 1981
Sep 1900–Jul 1901 11-Month	50.2°F (10.1°C)	49.7°F (9.8°C)	0.5°F (0.3°C)	80th Coolest	Coolest since: 1900	1904
	50.2°F (10.1°C)	49.7°F (9.8°C)	0.5°F (0.3°C)	48th Warmest	Warmest since: 1898	2012
	Ties: 1896, 1981, 1988, 2008
Aug 1900–Jul 1901 12-Month	52.6°F (11.4°C)	51.6°F (10.9°C)	1.0°F (0.5°C)	94th Coolest	Coolest since: 1900	1904
	52.6°F (11.4°C)	51.6°F (10.9°C)	1.0°F (0.5°C)	34th Warmest	Warmest to Date	2012
	Ties: 1941, 1983, 2011
Feb 1900–Jul 1901 18-Month	52.7°F (11.5°C)	52.7°F (11.5°C)	0.0°F (0.0°C)	59th Coolest	Coolest since: 1900	1918
	52.7°F (11.5°C)	52.7°F (11.5°C)	0.0°F (0.0°C)	69th Warmest	Warmest since: 1898	2012
	Ties: 1945
Aug 1899–Jul 1901 24-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	78th Coolest	Coolest since: 1900	1905
	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	49th Warmest	Warmest to Date	2017
	Ties: 1973, 1976, 1989, 1998
Aug 1898–Jul 1901 36-Month	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	32nd Coolest	Coolest since: 1900	1979
	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	94th Warmest	Warmest since: 1898	2018
	Ties: 1908, 1929, 1997
Aug 1897–Jul 1901 48-Month	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	47th Coolest	Coolest since: 1900	1905, 1980
	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	78th Warmest	Warmest to Date	2019
	Ties: 1914, 1947, 1959, 1966, 1983
Aug 1896–Jul 1901 60-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	34th Coolest	Coolest since: 1900	1906
	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	90th Warmest	Warmest since: 1900	2020
	Ties: 1900, 1910, 1960, 1965, 1968, 1973

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings