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

Statewide Rankings

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Illinois

January 1926 Average Temperature Rankings

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
January 1926 1-Month	27.4°F (-2.6°C)	25.3°F (-3.7°C)	2.1°F	79th Coolest	Coolest since: 1925	1977
January 1926 1-Month	27.4°F (-2.6°C)	25.3°F (-3.7°C)	2.1°F	53rd Warmest	Warmest since: 1923	2006
Dec 1925–Jan 1926 2-Month	26.7°F (-2.9°C)	27.5°F (-2.5°C)	-0.8°F	45th Coolest	Coolest since: 1925	1918
Dec 1925–Jan 1926 2-Month	26.7°F (-2.9°C)	27.5°F (-2.5°C)	-0.8°F	86th Warmest	Warmest since: 1924	1932
Nov 1925–Jan 1926 3-Month	30.4°F (-0.9°C)	31.9°F (-0.1°C)	-1.5°F	37th Coolest	Coolest since: 1925	1977
Nov 1925–Jan 1926 3-Month	30.4°F (-0.9°C)	31.9°F (-0.1°C)	-1.5°F	94th Warmest	Warmest since: 1924	1932
Oct 1925–Jan 1926 4-Month	34.1°F (1.2°C)	37.6°F (3.1°C)	-3.5°F	6th Coolest	Coolest since: 1918	1977
Oct 1925–Jan 1926 4-Month	34.1°F (1.2°C)	37.6°F (3.1°C)	-3.5°F	125th Warmest	Warmest since: 1925	1932
Sep 1925–Jan 1926 5-Month	41.7°F (5.4°C)	43.3°F (6.3°C)	-1.6°F	25th Coolest	Coolest since: 1920	1977
	41.7°F (5.4°C)	43.3°F (6.3°C)	-1.6°F	106th Warmest	Warmest since: 1925	1932
	Ties: 1910
Aug 1925–Jan 1926 6-Month	47.0°F (8.3°C)	48.4°F (9.1°C)	-1.4°F	22nd Coolest	Coolest since: 1920	1977
Aug 1925–Jan 1926 6-Month	47.0°F (8.3°C)	48.4°F (9.1°C)	-1.4°F	109th Warmest	Warmest since: 1925	1932
Jul 1925–Jan 1926 7-Month	51.0°F (10.6°C)	52.2°F (11.2°C)	-1.2°F	26th Coolest	Coolest since: 1925	1977
Jul 1925–Jan 1926 7-Month	51.0°F (10.6°C)	52.2°F (11.2°C)	-1.2°F	105th Warmest	Warmest since: 1924	1932
Jun 1925–Jan 1926 8-Month	53.9°F (12.2°C)	54.6°F (12.6°C)	-0.7°F	38th Coolest	Coolest since: 1925	1918, 1977
	53.9°F (12.2°C)	54.6°F (12.6°C)	-0.7°F	93rd Warmest	Warmest since: 1924	1932
	Ties: 1903, 1916
May 1925–Jan 1926 9-Month	54.4°F (12.4°C)	55.5°F (13.1°C)	-1.1°F	24th Coolest	Coolest since: 1925	1918
May 1925–Jan 1926 9-Month	54.4°F (12.4°C)	55.5°F (13.1°C)	-1.1°F	107th Warmest	Warmest since: 1924	1932
Apr 1925–Jan 1926 10-Month	54.7°F (12.6°C)	55.1°F (12.8°C)	-0.4°F	43rd Coolest	Coolest since: 1925	1918
Apr 1925–Jan 1926 10-Month	54.7°F (12.6°C)	55.1°F (12.8°C)	-0.4°F	88th Warmest	Warmest since: 1924	1932
Mar 1925–Jan 1926 11-Month	53.6°F (12.0°C)	53.7°F (12.1°C)	-0.1°F	57th Coolest	Coolest since: 1925	1918
Mar 1925–Jan 1926 11-Month	53.6°F (12.0°C)	53.7°F (12.1°C)	-0.1°F	74th Warmest	Warmest since: 1923	2013
Feb 1925–Jan 1926 12-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F	75th Coolest	Coolest since: 1925	1918
Feb 1925–Jan 1926 12-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F	56th Warmest	Warmest since: 1923	2013
Aug 1924–Jan 1926 18-Month	50.4°F (10.2°C)	50.5°F (10.3°C)	-0.1°F	49th Coolest	Coolest since: 1925	1905, 1918
Aug 1924–Jan 1926 18-Month	50.4°F (10.2°C)	50.5°F (10.3°C)	-0.1°F	81st Warmest	Warmest since: 1924	2017
Feb 1924–Jan 1926 24-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F	21st Coolest	Coolest since: 1925	1918
Feb 1924–Jan 1926 24-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F	109th Warmest	Warmest since: 1924	2013
Feb 1923–Jan 1926 36-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F	16th Coolest	Coolest since: 1920	1905
Feb 1923–Jan 1926 36-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F	113th Warmest	Warmest since: 1925	2013
Feb 1922–Jan 1926 48-Month	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F	49th Coolest	Coolest since: 1921	1905
Feb 1922–Jan 1926 48-Month	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F	79th Warmest	Warmest since: 1925	2025
Feb 1921–Jan 1926 60-Month	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F	77th Coolest	Coolest since: 1925	1906
Feb 1921–Jan 1926 60-Month	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F	50th Warmest	Warmest since: 1924	2025

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 23, 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 1926 Average Temperature Rankings

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