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

Statewide Rankings

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Illinois

January 1955 Average Temperature Rankings

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
January 1955 1-Month	26.5°F (-3.1°C)	25.3°F (-3.7°C)	1.2°F	72nd Coolest	Coolest since: 1951	1977
January 1955 1-Month	26.5°F (-3.1°C)	25.3°F (-3.7°C)	1.2°F	60th Warmest	Warmest since: 1954	2006
Dec 1954–Jan 1955 2-Month	29.0°F (-1.7°C)	27.5°F (-2.5°C)	1.5°F	73rd Coolest	Coolest since: 1952	1918
Dec 1954–Jan 1955 2-Month	29.0°F (-1.7°C)	27.5°F (-2.5°C)	1.5°F	58th Warmest	Warmest since: 1954	1932
Nov 1954–Jan 1955 3-Month	33.2°F (0.7°C)	31.9°F (-0.1°C)	1.3°F	76th Coolest	Coolest since: 1952	1977
Nov 1954–Jan 1955 3-Month	33.2°F (0.7°C)	31.9°F (-0.1°C)	1.3°F	55th Warmest	Warmest since: 1954	1932
Oct 1954–Jan 1955 4-Month	38.7°F (3.7°C)	37.6°F (3.1°C)	1.1°F	79th Coolest	Coolest since: 1953	1977
Oct 1954–Jan 1955 4-Month	38.7°F (3.7°C)	37.6°F (3.1°C)	1.1°F	52nd Warmest	Warmest since: 1954	1932
Sep 1954–Jan 1955 5-Month	44.8°F (7.1°C)	43.3°F (6.3°C)	1.5°F	92nd Coolest	Coolest since: 1953	1977
Sep 1954–Jan 1955 5-Month	44.8°F (7.1°C)	43.3°F (6.3°C)	1.5°F	39th Warmest	Warmest since: 1954	1932
Aug 1954–Jan 1955 6-Month	49.8°F (9.9°C)	48.4°F (9.1°C)	1.4°F	95th Coolest	Coolest since: 1953	1977
	49.8°F (9.9°C)	48.4°F (9.1°C)	1.4°F	36th Warmest	Warmest since: 1954	1932
	Ties: 1931
Jul 1954–Jan 1955 7-Month	53.9°F (12.2°C)	52.2°F (11.2°C)	1.7°F	106th Coolest	Coolest since: 1953	1977
Jul 1954–Jan 1955 7-Month	53.9°F (12.2°C)	52.2°F (11.2°C)	1.7°F	25th Warmest	Warmest since: 1954	1932
Jun 1954–Jan 1955 8-Month	56.6°F (13.7°C)	54.6°F (12.6°C)	2.0°F	111th Coolest	Coolest since: 1953	1918, 1977
Jun 1954–Jan 1955 8-Month	56.6°F (13.7°C)	54.6°F (12.6°C)	2.0°F	20th Warmest	Warmest since: 1954	1932
May 1954–Jan 1955 9-Month	56.8°F (13.8°C)	55.5°F (13.1°C)	1.3°F	99th Coolest	Coolest since: 1953	1918
May 1954–Jan 1955 9-Month	56.8°F (13.8°C)	55.5°F (13.1°C)	1.3°F	32nd Warmest	Warmest since: 1954	1932
Apr 1954–Jan 1955 10-Month	56.8°F (13.8°C)	55.1°F (12.8°C)	1.7°F	108th Coolest	Coolest since: 1954	1918
Apr 1954–Jan 1955 10-Month	56.8°F (13.8°C)	55.1°F (12.8°C)	1.7°F	23rd Warmest	Warmest since: 1942	1932
Mar 1954–Jan 1955 11-Month	55.0°F (12.8°C)	53.7°F (12.1°C)	1.3°F	100th Coolest	Coolest since: 1953	1918
Mar 1954–Jan 1955 11-Month	55.0°F (12.8°C)	53.7°F (12.1°C)	1.3°F	31st Warmest	Warmest since: 1954	2013
Feb 1954–Jan 1955 12-Month	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F	114th Coolest	Coolest since: 1954	1918
	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F	17th Warmest	Warmest since: 1947	2013
	Ties: 1923, 1931
Aug 1953–Jan 1955 18-Month	52.5°F (11.4°C)	50.5°F (10.3°C)	2.0°F	116th Coolest	Coolest since: 1954	1905, 1918
Aug 1953–Jan 1955 18-Month	52.5°F (11.4°C)	50.5°F (10.3°C)	2.0°F	14th Warmest	Warmest since: 1933	2017
Feb 1953–Jan 1955 24-Month	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F	119th Coolest	Coolest since: 1954	1918
Feb 1953–Jan 1955 24-Month	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F	11th Warmest	Warmest since: 1933	2013
Feb 1952–Jan 1955 36-Month	53.3°F (11.8°C)	51.6°F (10.9°C)	1.7°F	117th Coolest	Coolest since: 1954	1905
Feb 1952–Jan 1955 36-Month	53.3°F (11.8°C)	51.6°F (10.9°C)	1.7°F	12th Warmest	Warmest since: 1934	2013
Feb 1951–Jan 1955 48-Month	52.5°F (11.4°C)	51.6°F (10.9°C)	0.9°F	96th Coolest	Coolest since: 1954	1905
Feb 1951–Jan 1955 48-Month	52.5°F (11.4°C)	51.6°F (10.9°C)	0.9°F	32nd Warmest	Warmest since: 1942	2025
Feb 1950–Jan 1955 60-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	70th Coolest	Coolest since: 1954	1906
Feb 1950–Jan 1955 60-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	57th Warmest	Warmest since: 1950	2025

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 28, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings

Climate at a Glance Statewide Rankings

Statewide Rankings

Illinois

January 1955 Average Temperature Rankings

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