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Statewide Rankings

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Illinois

February 1949 Average Temperature Rankings

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
February 1949 1-Month	30.4°F (-0.9°C)	29.2°F (-1.6°C)	1.2°F	79th Coolest	Coolest since: 1948	1978
February 1949 1-Month	30.4°F (-0.9°C)	29.2°F (-1.6°C)	1.2°F	53rd Warmest	Warmest since: 1946	2017
Jan–Feb 1949 2-Month	29.5°F (-1.4°C)	27.3°F (-2.6°C)	2.2°F	91st Coolest	Coolest since: 1948	1979
	29.5°F (-1.4°C)	27.3°F (-2.6°C)	2.2°F	41st Warmest	Warmest since: 1946	2017
	Ties: 1925
Dec 1948–Feb 1949 3-Month	30.5°F (-0.8°C)	28°F (-2.2°C)	2.5°F	103rd Coolest	Coolest since: 1948	1978
Dec 1948–Feb 1949 3-Month	30.5°F (-0.8°C)	28°F (-2.2°C)	2.5°F	28th Warmest	Warmest since: 1939	1932
Nov 1948–Feb 1949 4-Month	33.7°F (0.9°C)	31.2°F (-0.4°C)	2.5°F	105th Coolest	Coolest since: 1948	1977
Nov 1948–Feb 1949 4-Month	33.7°F (0.9°C)	31.2°F (-0.4°C)	2.5°F	26th Warmest	Warmest since: 1932	1932
Oct 1948–Feb 1949 5-Month	37.3°F (2.9°C)	35.9°F (2.2°C)	1.4°F	91st Coolest	Coolest since: 1948	1977
Oct 1948–Feb 1949 5-Month	37.3°F (2.9°C)	35.9°F (2.2°C)	1.4°F	40th Warmest	Warmest since: 1947	1932
Sep 1948–Feb 1949 6-Month	42.4°F (5.8°C)	41°F (5.0°C)	1.4°F	92nd Coolest	Coolest since: 1948	1977
Sep 1948–Feb 1949 6-Month	42.4°F (5.8°C)	41°F (5.0°C)	1.4°F	39th Warmest	Warmest since: 1947	1932
Aug 1948–Feb 1949 7-Month	46.9°F (8.3°C)	45.6°F (7.6°C)	1.3°F	97th Coolest	Coolest since: 1948	1977
Aug 1948–Feb 1949 7-Month	46.9°F (8.3°C)	45.6°F (7.6°C)	1.3°F	34th Warmest	Warmest since: 1942	1932
Jul 1948–Feb 1949 8-Month	50.4°F (10.2°C)	49.4°F (9.7°C)	1°F	88th Coolest	Coolest since: 1948	1977
Jul 1948–Feb 1949 8-Month	50.4°F (10.2°C)	49.4°F (9.7°C)	1°F	43rd Warmest	Warmest since: 1942	1932
Jun 1948–Feb 1949 9-Month	52.7°F (11.5°C)	51.8°F (11.0°C)	0.9°F	88th Coolest	Coolest since: 1948	1977
Jun 1948–Feb 1949 9-Month	52.7°F (11.5°C)	51.8°F (11.0°C)	0.9°F	43rd Warmest	Warmest since: 1942	1932
May 1948–Feb 1949 10-Month	53.5°F (11.9°C)	52.8°F (11.6°C)	0.7°F	80th Coolest	Coolest since: 1948	1918
May 1948–Feb 1949 10-Month	53.5°F (11.9°C)	52.8°F (11.6°C)	0.7°F	51st Warmest	Warmest since: 1942	1932
Apr 1948–Feb 1949 11-Month	53.7°F (12.1°C)	52.7°F (11.5°C)	1°F	93rd Coolest	Coolest since: 1948	1918
Apr 1948–Feb 1949 11-Month	53.7°F (12.1°C)	52.7°F (11.5°C)	1°F	38th Warmest	Warmest since: 1942	1932
Mar 1948–Feb 1949 12-Month	52.5°F (11.4°C)	51.6°F (10.9°C)	0.9°F	89th Coolest	Coolest since: 1948	1918
Mar 1948–Feb 1949 12-Month	52.5°F (11.4°C)	51.6°F (10.9°C)	0.9°F	42nd Warmest	Warmest since: 1947	2017
Sep 1947–Feb 1949 18-Month	48.7°F (9.3°C)	48.1°F (8.9°C)	0.6°F	83rd Coolest	Coolest since: 1948	1905
Sep 1947–Feb 1949 18-Month	48.7°F (9.3°C)	48.1°F (8.9°C)	0.6°F	47th Warmest	Warmest since: 1947	2017
Mar 1947–Feb 1949 24-Month	51.7°F (10.9°C)	51.6°F (10.9°C)	0.1°F	59th Coolest	Coolest since: 1946	1905
	51.7°F (10.9°C)	51.6°F (10.9°C)	0.1°F	71st Warmest	Warmest since: 1948	2017
	Ties: 1897, 1901, 1921, 1944
Mar 1946–Feb 1949 36-Month	52.2°F (11.2°C)	51.6°F (10.9°C)	0.6°F	82nd Coolest	Coolest since: 1948	1979
	52.2°F (11.2°C)	51.6°F (10.9°C)	0.6°F	47th Warmest	Warmest since: 1944	2013, 2018
	Ties: 1942
Mar 1945–Feb 1949 48-Month	52°F (11.1°C)	51.6°F (10.9°C)	0.4°F	74th Coolest	Coolest since: 1948	1905
Mar 1945–Feb 1949 48-Month	52°F (11.1°C)	51.6°F (10.9°C)	0.4°F	54th Warmest	Warmest since: 1945	2025
Mar 1944–Feb 1949 60-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	69th Coolest	Coolest since: 1948	1905
Mar 1944–Feb 1949 60-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	58th Warmest	Warmest since: 1947	2025

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published September 2025, retrieved on September 18, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings

Climate at a Glance Statewide Rankings

Statewide Rankings

Illinois

February 1949 Average Temperature Rankings

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