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 3. West

Average Temperature Rankings, February 2021

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
February 2021 1-Month	18.3°F (-7.6°C)	28.1°F (-2.2°C)	-9.8°F (-5.4°C)	8th Coolest	Coolest since: 2014	1936
February 2021 1-Month	18.3°F (-7.6°C)	28.1°F (-2.2°C)	-9.8°F (-5.4°C)	121st Warmest	Warmest since: 2020	2017
Jan–Feb 2021 2-Month	23.0°F (-5.0°C)	25.9°F (-3.4°C)	-2.9°F (-1.6°C)	26th Coolest	Coolest since: 2015	1979
	23.0°F (-5.0°C)	25.9°F (-3.4°C)	-2.9°F (-1.6°C)	103rd Warmest	Warmest since: 2020	2017
	Ties: 1917
Dec 2020–Feb 2021 3-Month	25.9°F (-3.4°C)	26.8°F (-2.9°C)	-0.9°F (-0.5°C)	42nd Coolest	Coolest since: 2015	1936
Dec 2020–Feb 2021 3-Month	25.9°F (-3.4°C)	26.8°F (-2.9°C)	-0.9°F (-0.5°C)	86th Warmest	Warmest since: 2020	1932
Nov 2020–Feb 2021 4-Month	31.1°F (-0.5°C)	30.1°F (-1.1°C)	1.0°F (0.6°C)	83rd Coolest	Coolest since: 2019	1936
	31.1°F (-0.5°C)	30.1°F (-1.1°C)	1.0°F (0.6°C)	45th Warmest	Warmest since: 2020	1932
	Ties: 1908, 1913, 1933, 1941, 1967, 2022
Oct 2020–Feb 2021 5-Month	35.0°F (1.7°C)	35.0°F (1.7°C)	0.0°F (0.0°C)	56th Coolest	Coolest since: 2019	1977
	35.0°F (1.7°C)	35.0°F (1.7°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 2020	1932
	Ties: 1903, 1907, 1938
Sep 2020–Feb 2021 6-Month	39.9°F (4.4°C)	40.2°F (4.6°C)	-0.3°F (-0.2°C)	53rd Coolest	Coolest since: 2019	1977
	39.9°F (4.4°C)	40.2°F (4.6°C)	-0.3°F (-0.2°C)	75th Warmest	Warmest since: 2020	1932
	Ties: 1952, 1984
Aug 2020–Feb 2021 7-Month	44.6°F (7.0°C)	45.0°F (7.2°C)	-0.4°F (-0.2°C)	48th Coolest	Coolest since: 2015	1977
	44.6°F (7.0°C)	45.0°F (7.2°C)	-0.4°F (-0.2°C)	80th Warmest	Warmest since: 2020	1932
	Ties: 1940, 1946
Jul 2020–Feb 2021 8-Month	48.6°F (9.2°C)	48.8°F (9.3°C)	-0.2°F (-0.1°C)	47th Coolest	Coolest since: 2019	1977
	48.6°F (9.2°C)	48.8°F (9.3°C)	-0.2°F (-0.1°C)	81st Warmest	Warmest since: 2020	1932
	Ties: 1927, 1940, 1943, 1967, 2003, 2019
Jun 2020–Feb 2021 9-Month	51.4°F (10.8°C)	51.3°F (10.7°C)	0.1°F (0.1°C)	54th Coolest	Coolest since: 2015	1977
	51.4°F (10.8°C)	51.3°F (10.7°C)	0.1°F (0.1°C)	74th Warmest	Warmest since: 2020	1932
	Ties: 1956, 1965, 2003
May 2020–Feb 2021 10-Month	52.3°F (11.3°C)	52.5°F (11.4°C)	-0.2°F (-0.1°C)	52nd Coolest	Coolest since: 2015	1918
May 2020–Feb 2021 10-Month	52.3°F (11.3°C)	52.5°F (11.4°C)	-0.2°F (-0.1°C)	76th Warmest	Warmest since: 2020	1932
Apr 2020–Feb 2021 11-Month	52.0°F (11.1°C)	52.4°F (11.3°C)	-0.4°F (-0.2°C)	48th Coolest	Coolest since: 2015	1918
Apr 2020–Feb 2021 11-Month	52.0°F (11.1°C)	52.4°F (11.3°C)	-0.4°F (-0.2°C)	80th Warmest	Warmest since: 2020	1932
Mar 2020–Feb 2021 12-Month	51.3°F (10.7°C)	51.3°F (10.7°C)	0.0°F (0.0°C)	60th Coolest	Coolest since: 2015	1918
	51.3°F (10.7°C)	51.3°F (10.7°C)	0.0°F (0.0°C)	68th Warmest	Warmest since: 2020	2017
	Ties: 1990
Sep 2019–Feb 2021 18-Month	48.3°F (9.1°C)	47.6°F (8.7°C)	0.7°F (0.4°C)	91st Coolest	Coolest since: 2020	1905
	48.3°F (9.1°C)	47.6°F (8.7°C)	0.7°F (0.4°C)	36th Warmest	Warmest since: 2018	2017
	Ties: 1949, 1965, 2016
Mar 2019–Feb 2021 24-Month	51.7°F (10.9°C)	51.3°F (10.7°C)	0.4°F (0.2°C)	80th Coolest	Coolest since: 2016	1905
Mar 2019–Feb 2021 24-Month	51.7°F (10.9°C)	51.3°F (10.7°C)	0.4°F (0.2°C)	47th Warmest	Warmest since: 2020	2017
Mar 2018–Feb 2021 36-Month	51.6°F (10.9°C)	51.2°F (10.7°C)	0.4°F (0.2°C)	75th Coolest	Coolest since: 2016	1979
	51.6°F (10.9°C)	51.2°F (10.7°C)	0.4°F (0.2°C)	51st Warmest	Warmest since: 2020	2018
	Ties: 1898, 1936, 1999
Mar 2017–Feb 2021 48-Month	51.8°F (11.0°C)	51.2°F (10.7°C)	0.6°F (0.3°C)	88th Coolest	Coolest since: 2017	1905, 1980
	51.8°F (11.0°C)	51.2°F (10.7°C)	0.6°F (0.3°C)	37th Warmest	Warmest since: 2020	1934, 1935, 2019
	Ties: 1944
Mar 2016–Feb 2021 60-Month	52.4°F (11.3°C)	51.2°F (10.7°C)	1.2°F (0.6°C)	113th Coolest	Coolest since: 2019	1905
Mar 2016–Feb 2021 60-Month	52.4°F (11.3°C)	51.2°F (10.7°C)	1.2°F (0.6°C)	11th Warmest	Warmest since: 2020	1935

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings