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Statewide Rankings

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Illinois

December 1946 Average Temperature Rankings

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
December 1946 1-Month	34.7°F (1.5°C)	29.4°F (-1.4°C)	5.3°F	109th Coolest	Coolest since: 1945	1983
December 1946 1-Month	34.7°F (1.5°C)	29.4°F (-1.4°C)	5.3°F	22nd Warmest	Warmest since: 1941	2015
Nov–Dec 1946 2-Month	39.0°F (3.9°C)	35.1°F (1.7°C)	3.9°F	109th Coolest	Coolest since: 1945	1950
Nov–Dec 1946 2-Month	39.0°F (3.9°C)	35.1°F (1.7°C)	3.9°F	22nd Warmest	Warmest since: 1941	2015
Oct–Dec 1946 3-Month	45.4°F (7.4°C)	41.6°F (5.3°C)	3.8°F	119th Coolest	Coolest since: 1945	1976
Oct–Dec 1946 3-Month	45.4°F (7.4°C)	41.6°F (5.3°C)	3.8°F	12th Warmest	Warmest since: 1931	1931
Sep–Dec 1946 4-Month	50.5°F (10.3°C)	47.8°F (8.8°C)	2.7°F	119th Coolest	Coolest since: 1945	1976
Sep–Dec 1946 4-Month	50.5°F (10.3°C)	47.8°F (8.8°C)	2.7°F	12th Warmest	Warmest since: 1941	1931
Aug–Dec 1946 5-Month	54.3°F (12.4°C)	52.9°F (11.6°C)	1.4°F	101st Coolest	Coolest since: 1945	1976
	54.3°F (12.4°C)	52.9°F (11.6°C)	1.4°F	30th Warmest	Warmest since: 1941	1931
	Ties: 1918
Jul–Dec 1946 6-Month	57.9°F (14.4°C)	56.7°F (13.7°C)	1.2°F	100th Coolest	Coolest since: 1945	1976
Jul–Dec 1946 6-Month	57.9°F (14.4°C)	56.7°F (13.7°C)	1.2°F	31st Warmest	Warmest since: 1941	1931
Jun–Dec 1946 7-Month	59.8°F (15.4°C)	58.8°F (14.9°C)	1.0°F	93rd Coolest	Coolest since: 1945	1917
Jun–Dec 1946 7-Month	59.8°F (15.4°C)	58.8°F (14.9°C)	1.0°F	38th Warmest	Warmest since: 1941	1931
May–Dec 1946 8-Month	59.7°F (15.4°C)	59.2°F (15.1°C)	0.5°F	71st Coolest	Coolest since: 1945	1917
	59.7°F (15.4°C)	59.2°F (15.1°C)	0.5°F	60th Warmest	Warmest since: 1944	1931
	Ties: 1940
Apr–Dec 1946 9-Month	59.1°F (15.1°C)	58.3°F (14.6°C)	0.8°F	82nd Coolest	Coolest since: 1945	1917
Apr–Dec 1946 9-Month	59.1°F (15.1°C)	58.3°F (14.6°C)	0.8°F	49th Warmest	Warmest since: 1941	1931
Mar–Dec 1946 10-Month	58.3°F (14.6°C)	56.5°F (13.6°C)	1.8°F	112th Coolest	Coolest since: 1945	1917
Mar–Dec 1946 10-Month	58.3°F (14.6°C)	56.5°F (13.6°C)	1.8°F	19th Warmest	Warmest since: 1941	2012
Feb–Dec 1946 11-Month	56.0°F (13.3°C)	54.0°F (12.2°C)	2.0°F	117th Coolest	Coolest since: 1945	1917
Feb–Dec 1946 11-Month	56.0°F (13.3°C)	54.0°F (12.2°C)	2.0°F	14th Warmest	Warmest since: 1938	2024
Jan–Dec 1946 12-Month	53.7°F (12.1°C)	51.6°F (10.9°C)	2.1°F	118th Coolest	Coolest since: 1945	1917
Jan–Dec 1946 12-Month	53.7°F (12.1°C)	51.6°F (10.9°C)	2.1°F	13th Warmest	Warmest since: 1938	2012
Jul 1945–Dec 1946 18-Month	54.0°F (12.2°C)	53.3°F (11.8°C)	0.7°F	92nd Coolest	Coolest since: 1945	1904
Jul 1945–Dec 1946 18-Month	54.0°F (12.2°C)	53.3°F (11.8°C)	0.7°F	38th Warmest	Warmest since: 1942	2012
Jan 1945–Dec 1946 24-Month	52.2°F (11.2°C)	51.6°F (10.9°C)	0.6°F	86th Coolest	Coolest since: 1945	1904, 1979
Jan 1945–Dec 1946 24-Month	52.2°F (11.2°C)	51.6°F (10.9°C)	0.6°F	44th Warmest	Warmest since: 1942	2024
Jan 1944–Dec 1946 36-Month	52.2°F (11.2°C)	51.6°F (10.9°C)	0.6°F	87th Coolest	Coolest since: 1945	1905
Jan 1944–Dec 1946 36-Month	52.2°F (11.2°C)	51.6°F (10.9°C)	0.6°F	42nd Warmest	Warmest since: 1941	2024
Jan 1943–Dec 1946 48-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	71st Coolest	Coolest since: 1945	1905
	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	57th Warmest	Warmest since: 1944	2024
	Ties: 1938
Jan 1942–Dec 1946 60-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	68th Coolest	Coolest since: 1945	1905
Jan 1942–Dec 1946 60-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	59th Warmest	Warmest since: 1943	2024

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 30, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings

Climate at a Glance Statewide Rankings

Statewide Rankings

Illinois

December 1946 Average Temperature Rankings

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