Climate at a Glance | Statewide Rankings | National Centers for Environmental Information (NCEI)

Statewide Rankings

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Illinois

April 1950 Average Temperature Rankings

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
April 1950 1-Month	45.8°F (7.7°C)	51.5°F (10.8°C)	-5.7°F	5th Coolest	Coolest since: 1926	1907
April 1950 1-Month	45.8°F (7.7°C)	51.5°F (10.8°C)	-5.7°F	126th Warmest	Warmest since: 1949	2010
Mar–Apr 1950 2-Month	40.9°F (4.9°C)	45.7°F (7.6°C)	-4.8°F	3rd Coolest	Coolest since: 1926	1926
Mar–Apr 1950 2-Month	40.9°F (4.9°C)	45.7°F (7.6°C)	-4.8°F	128th Warmest	Warmest since: 1949	2012
Feb–Apr 1950 3-Month	37.1°F (2.8°C)	40.2°F (4.6°C)	-3.1°F	19th Coolest	Coolest since: 1947	1978
Feb–Apr 1950 3-Month	37.1°F (2.8°C)	40.2°F (4.6°C)	-3.1°F	112th Warmest	Warmest since: 1949	2012
Jan–Apr 1950 4-Month	35.8°F (2.1°C)	36.5°F (2.5°C)	-0.7°F	52nd Coolest	Coolest since: 1947	1912
Jan–Apr 1950 4-Month	35.8°F (2.1°C)	36.5°F (2.5°C)	-0.7°F	79th Warmest	Warmest since: 1949	2012
Dec 1949–Apr 1950 5-Month	35.5°F (1.9°C)	35.1°F (1.7°C)	0.4°F	70th Coolest	Coolest since: 1948	1978
Dec 1949–Apr 1950 5-Month	35.5°F (1.9°C)	35.1°F (1.7°C)	0.4°F	60th Warmest	Warmest since: 1949	2012
Nov 1949–Apr 1950 6-Month	36.6°F (2.6°C)	36.0°F (2.2°C)	0.6°F	73rd Coolest	Coolest since: 1948	1904
Nov 1949–Apr 1950 6-Month	36.6°F (2.6°C)	36.0°F (2.2°C)	0.6°F	57th Warmest	Warmest since: 1949	2012
Oct 1949–Apr 1950 7-Month	39.6°F (4.2°C)	38.7°F (3.7°C)	0.9°F	88th Coolest	Coolest since: 1949	1904
Oct 1949–Apr 1950 7-Month	39.6°F (4.2°C)	38.7°F (3.7°C)	0.9°F	42nd Warmest	Warmest since: 1949	2012
Sep 1949–Apr 1950 8-Month	42.2°F (5.7°C)	42.1°F (5.6°C)	0.1°F	54th Coolest	Coolest since: 1944	1904
Sep 1949–Apr 1950 8-Month	42.2°F (5.7°C)	42.1°F (5.6°C)	0.1°F	76th Warmest	Warmest since: 1949	2017
Aug 1949–Apr 1950 9-Month	45.7°F (7.6°C)	45.6°F (7.6°C)	0.1°F	57th Coolest	Coolest since: 1947	1904
Aug 1949–Apr 1950 9-Month	45.7°F (7.6°C)	45.6°F (7.6°C)	0.1°F	73rd Warmest	Warmest since: 1949	2017
Jul 1949–Apr 1950 10-Month	48.9°F (9.4°C)	48.6°F (9.2°C)	0.3°F	70th Coolest	Coolest since: 1947	1904
Jul 1949–Apr 1950 10-Month	48.9°F (9.4°C)	48.6°F (9.2°C)	0.3°F	60th Warmest	Warmest since: 1949	2012
Jun 1949–Apr 1950 11-Month	51.2°F (10.7°C)	50.7°F (10.4°C)	0.5°F	75th Coolest	Coolest since: 1947	1904
Jun 1949–Apr 1950 11-Month	51.2°F (10.7°C)	50.7°F (10.4°C)	0.5°F	55th Warmest	Warmest since: 1949	2017
May 1949–Apr 1950 12-Month	52.3°F (11.3°C)	51.6°F (10.9°C)	0.7°F	79th Coolest	Coolest since: 1949	1918
May 1949–Apr 1950 12-Month	52.3°F (11.3°C)	51.6°F (10.9°C)	0.7°F	51st Warmest	Warmest since: 1945	2012, 2017
Nov 1948–Apr 1950 18-Month	47.3°F (8.5°C)	46.4°F (8.0°C)	0.9°F	92nd Coolest	Coolest since: 1949	1905
	47.3°F (8.5°C)	46.4°F (8.0°C)	0.9°F	37th Warmest	Warmest since: 1942	2017
	Ties: 1923, 1931, 1934
May 1948–Apr 1950 24-Month	52.2°F (11.2°C)	51.6°F (10.9°C)	0.6°F	84th Coolest	Coolest since: 1949	1905
May 1948–Apr 1950 24-Month	52.2°F (11.2°C)	51.6°F (10.9°C)	0.6°F	45th Warmest	Warmest since: 1946	2017
May 1947–Apr 1950 36-Month	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F	79th Coolest	Coolest since: 1949	1979
	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F	49th Warmest	Warmest since: 1944	2018, 2024
	Ties: 1941, 1944
May 1946–Apr 1950 48-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	70th Coolest	Coolest since: 1949	1980
May 1946–Apr 1950 48-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	57th Warmest	Warmest since: 1948	2019
May 1945–Apr 1950 60-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F	66th Coolest	Coolest since: 1948	1906
May 1945–Apr 1950 60-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F	60th Warmest	Warmest since: 1949	2020, 2024

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on April 2, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings

Climate at a Glance Statewide Rankings

Statewide Rankings

Illinois

April 1950 Average Temperature Rankings

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