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, October 1900

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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
October 1900 1-Month	60.6°F (15.9°C)	54.6°F (12.6°C)	6.0°F (3.3°C)	125th Coolest	Coolest since: 1899	1925
October 1900 1-Month	60.6°F (15.9°C)	54.6°F (12.6°C)	6.0°F (3.3°C)	4th Warmest	Warmest to Date	1963
Sep–Oct 1900 2-Month	64.5°F (18.1°C)	60.5°F (15.8°C)	4.0°F (2.3°C)	120th Coolest	Coolest since: 1899	1917
Sep–Oct 1900 2-Month	64.5°F (18.1°C)	60.5°F (15.8°C)	4.0°F (2.3°C)	9th Warmest	Warmest since: 1897	1897
Aug–Oct 1900 3-Month	69.2°F (20.7°C)	64.8°F (18.2°C)	4.4°F (2.5°C)	126th Coolest	Coolest since: 1899	1917
Aug–Oct 1900 3-Month	69.2°F (20.7°C)	64.8°F (18.2°C)	4.4°F (2.5°C)	3rd Warmest	Warmest to Date	1947
Jul–Oct 1900 4-Month	70.6°F (21.4°C)	67.5°F (19.7°C)	3.1°F (1.7°C)	126th Coolest	Coolest since: 1899	1917
	70.6°F (21.4°C)	67.5°F (19.7°C)	3.1°F (1.7°C)	3rd Warmest	Warmest to Date	1936
	Ties: 1931
Jun–Oct 1900 5-Month	70.5°F (21.4°C)	68.2°F (20.1°C)	2.3°F (1.3°C)	117th Coolest	Coolest since: 1899	1917
	70.5°F (21.4°C)	68.2°F (20.1°C)	2.3°F (1.3°C)	12th Warmest	Warmest to Date	1936
	Ties: 1983
May–Oct 1900 6-Month	69.4°F (20.8°C)	67.2°F (19.6°C)	2.2°F (1.2°C)	118th Coolest	Coolest since: 1899	1917
May–Oct 1900 6-Month	69.4°F (20.8°C)	67.2°F (19.6°C)	2.2°F (1.2°C)	11th Warmest	Warmest to Date	1936
Apr–Oct 1900 7-Month	67.0°F (19.4°C)	65.0°F (18.3°C)	2.0°F (1.1°C)	117th Coolest	Coolest since: 1899	1917
Apr–Oct 1900 7-Month	67.0°F (19.4°C)	65.0°F (18.3°C)	2.0°F (1.1°C)	12th Warmest	Warmest to Date	2010
Mar–Oct 1900 8-Month	62.8°F (17.1°C)	61.8°F (16.6°C)	1.0°F (0.5°C)	94th Coolest	Coolest since: 1899	1917
	62.8°F (17.1°C)	61.8°F (16.6°C)	1.0°F (0.5°C)	35th Warmest	Warmest to Date	2012
	Ties: 1911, 1985
Feb–Oct 1900 9-Month	58.3°F (14.6°C)	58.2°F (14.6°C)	0.1°F (0.0°C)	67th Coolest	Coolest since: 1899	1917
	58.3°F (14.6°C)	58.2°F (14.6°C)	0.1°F (0.0°C)	62nd Warmest	Warmest since: 1897	2012
	Ties: 1896, 1914, 1935, 1970, 1976, 1981
Jan–Oct 1900 10-Month	55.5°F (13.1°C)	54.9°F (12.7°C)	0.6°F (0.4°C)	84th Coolest	Coolest since: 1899	1904
	55.5°F (13.1°C)	54.9°F (12.7°C)	0.6°F (0.4°C)	45th Warmest	Warmest to Date	2012
	Ties: 1995, 2001
Dec 1899–Oct 1900 11-Month	52.9°F (11.6°C)	52.6°F (11.4°C)	0.3°F (0.2°C)	74th Coolest	Coolest since: 1899	1904
	52.9°F (11.6°C)	52.6°F (11.4°C)	0.3°F (0.2°C)	54th Warmest	Warmest since: 1897	2012
	Ties: 1947
Nov 1899–Oct 1900 12-Month	52.3°F (11.3°C)	51.6°F (10.9°C)	0.7°F (0.4°C)	88th Coolest	Coolest since: 1899	1904
Nov 1899–Oct 1900 12-Month	52.3°F (11.3°C)	51.6°F (10.9°C)	0.7°F (0.4°C)	40th Warmest	Warmest to Date	2012
May 1899–Oct 1900 18-Month	57.6°F (14.2°C)	56.8°F (13.8°C)	0.8°F (0.4°C)	87th Coolest	Coolest since: 1899	1904
	57.6°F (14.2°C)	56.8°F (13.8°C)	0.8°F (0.4°C)	41st Warmest	Warmest to Date	2012
	Ties: 2008, 2010
Nov 1898–Oct 1900 24-Month	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	33rd Coolest	Coolest since: 1899	1905
	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	94th Warmest	Warmest since: 1898	2017
	Ties: 1960, 1967
Nov 1897–Oct 1900 36-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	38th Coolest	Coolest since: 1899	1904, 1979
	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	88th Warmest	Warmest since: 1898	2018
	Ties: 1901, 1908, 1909, 1930, 1965, 1972, 1984, 1994
Nov 1896–Oct 1900 48-Month	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	47th Coolest	Coolest since: 1899	1905
	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: 1959, 1984, 1985
Nov 1895–Oct 1900 60-Month	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	48th Coolest	Coolest to Date	1905, 1906
	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	76th Warmest	Warmest to Date	2002, 2020
	Ties: 1901, 1911, 1984, 1985

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published June 2023, retrieved on June 9, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings