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 2019

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
October 2019 1-Month	53.7°F (12.1°C)	54.6°F (12.6°C)	-0.9°F (-0.5°C)	46th Coolest	Coolest since: 2012	1925
	53.7°F (12.1°C)	54.6°F (12.6°C)	-0.9°F (-0.5°C)	83rd Warmest	Warmest since: 2018	1963
	Ties: 1904, 1908
Sep–Oct 2019 2-Month	62.6°F (17.0°C)	60.4°F (15.8°C)	2.2°F (1.2°C)	105th Coolest	Coolest since: 2018	1917
Sep–Oct 2019 2-Month	62.6°F (17.0°C)	60.4°F (15.8°C)	2.2°F (1.2°C)	24th Warmest	Warmest since: 2017	1897, 2016
Aug–Oct 2019 3-Month	66.0°F (18.9°C)	64.7°F (18.2°C)	1.3°F (0.7°C)	98th Coolest	Coolest since: 2017	1917
	66.0°F (18.9°C)	64.7°F (18.2°C)	1.3°F (0.7°C)	31st Warmest	Warmest since: 2018	1947
	Ties: 1906, 1940
Jul–Oct 2019 4-Month	68.9°F (20.5°C)	67.5°F (19.7°C)	1.4°F (0.8°C)	104th Coolest	Coolest since: 2018	1917
Jul–Oct 2019 4-Month	68.9°F (20.5°C)	67.5°F (19.7°C)	1.4°F (0.8°C)	25th Warmest	Warmest since: 2016	1936
Jun–Oct 2019 5-Month	69.3°F (20.7°C)	68.3°F (20.2°C)	1.0°F (0.5°C)	95th Coolest	Coolest since: 2017	1917
	69.3°F (20.7°C)	68.3°F (20.2°C)	1.0°F (0.5°C)	34th Warmest	Warmest since: 2018	1936
	Ties: 1940, 2011
May–Oct 2019 6-Month	68.2°F (20.1°C)	67.3°F (19.6°C)	0.9°F (0.5°C)	96th Coolest	Coolest since: 2017	1917
	68.2°F (20.1°C)	67.3°F (19.6°C)	0.9°F (0.5°C)	33rd Warmest	Warmest since: 2018	1936
	Ties: 1913, 1919, 1963, 2015
Apr–Oct 2019 7-Month	65.9°F (18.8°C)	65.0°F (18.3°C)	0.9°F (0.5°C)	94th Coolest	Coolest since: 2014	1917
	65.9°F (18.8°C)	65.0°F (18.3°C)	0.9°F (0.5°C)	35th Warmest	Warmest since: 2018	2010
	Ties: 1899, 1919, 1947, 2002, 2011
Mar–Oct 2019 8-Month	62.3°F (16.8°C)	61.8°F (16.6°C)	0.5°F (0.2°C)	78th Coolest	Coolest since: 2014	1917
	62.3°F (16.8°C)	61.8°F (16.6°C)	0.5°F (0.2°C)	51st Warmest	Warmest since: 2018	2012
	Ties: 1908, 1925
Feb–Oct 2019 9-Month	58.7°F (14.8°C)	58.2°F (14.6°C)	0.5°F (0.2°C)	82nd Coolest	Coolest since: 2015	1917
	58.7°F (14.8°C)	58.2°F (14.6°C)	0.5°F (0.2°C)	47th Warmest	Warmest since: 2018	2012
	Ties: 1927, 1949, 1988
Jan–Oct 2019 10-Month	55.3°F (12.9°C)	54.9°F (12.7°C)	0.4°F (0.2°C)	78th Coolest	Coolest since: 2015	1904
	55.3°F (12.9°C)	54.9°F (12.7°C)	0.4°F (0.2°C)	51st Warmest	Warmest since: 2018	2012
	Ties: 1896, 1927, 1959
Dec 2018–Oct 2019 11-Month	53.4°F (11.9°C)	52.6°F (11.4°C)	0.8°F (0.5°C)	86th Coolest	Coolest since: 2015	1904
Dec 2018–Oct 2019 11-Month	53.4°F (11.9°C)	52.6°F (11.4°C)	0.8°F (0.5°C)	42nd Warmest	Warmest since: 2018	2012
Nov 2018–Oct 2019 12-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F (0.2°C)	74th Coolest	Coolest since: 2015	1904
	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F (0.2°C)	54th Warmest	Warmest since: 2018	2012
	Ties: 1925
May 2018–Oct 2019 18-Month	58.0°F (14.4°C)	56.9°F (13.8°C)	1.1°F (0.6°C)	100th Coolest	Coolest since: 2018	1904
May 2018–Oct 2019 18-Month	58.0°F (14.4°C)	56.9°F (13.8°C)	1.1°F (0.6°C)	28th Warmest	Warmest since: 2017	2012
Nov 2017–Oct 2019 24-Month	52.3°F (11.3°C)	51.6°F (10.9°C)	0.7°F (0.4°C)	90th Coolest	Coolest since: 2015	1905
	52.3°F (11.3°C)	51.6°F (10.9°C)	0.7°F (0.4°C)	37th Warmest	Warmest since: 2018	2017
	Ties: 1947, 2020
Nov 2016–Oct 2019 36-Month	53.1°F (11.7°C)	51.6°F (10.9°C)	1.5°F (0.8°C)	113th Coolest	Coolest since: 2016	1904, 1979
Nov 2016–Oct 2019 36-Month	53.1°F (11.7°C)	51.6°F (10.9°C)	1.5°F (0.8°C)	13th Warmest	Warmest since: 2018	2018
Nov 2015–Oct 2019 48-Month	53.8°F (12.1°C)	51.6°F (10.9°C)	2.2°F (1.2°C)	124th Coolest	Coolest since: 2018	1905
Nov 2015–Oct 2019 48-Month	53.8°F (12.1°C)	51.6°F (10.9°C)	2.2°F (1.2°C)	1st Warmest	Warmest to Date	2019
Nov 2014–Oct 2019 60-Month	53.3°F (11.8°C)	51.6°F (10.9°C)	1.7°F (0.9°C)	121st Coolest	Coolest since: 2018	1905, 1906
Nov 2014–Oct 2019 60-Month	53.3°F (11.8°C)	51.6°F (10.9°C)	1.7°F (0.9°C)	3rd Warmest	Warmest since: 2002	2002, 2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 3, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings