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

Statewide Rankings

Parameter:

Year:

Month:

State:

Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Illinois

January 1921 Average Temperature Rankings

View Period (Months):

All

Download:

CSV JSON XML

Record Coolest

Bottom ⅒

Bottom ⅓

Normal

Top ⅓

Top ⅒

Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
January 1921 1-Month	32.4°F (0.2°C)	25.3°F (-3.7°C)	7.1°F	122nd Coolest	Coolest since: 1920	1977
January 1921 1-Month	32.4°F (0.2°C)	25.3°F (-3.7°C)	7.1°F	10th Warmest	Warmest since: 1914	2006
Dec 1920–Jan 1921 2-Month	31.9°F (-0.1°C)	27.5°F (-2.5°C)	4.4°F	110th Coolest	Coolest since: 1920	1918
Dec 1920–Jan 1921 2-Month	31.9°F (-0.1°C)	27.5°F (-2.5°C)	4.4°F	21st Warmest	Warmest since: 1919	1932
Nov 1920–Jan 1921 3-Month	34.1°F (1.2°C)	31.9°F (-0.1°C)	2.2°F	95th Coolest	Coolest since: 1920	1977
Nov 1920–Jan 1921 3-Month	34.1°F (1.2°C)	31.9°F (-0.1°C)	2.2°F	36th Warmest	Warmest since: 1919	1932
Oct 1920–Jan 1921 4-Month	40.4°F (4.7°C)	37.6°F (3.1°C)	2.8°F	109th Coolest	Coolest since: 1920	1977
Oct 1920–Jan 1921 4-Month	40.4°F (4.7°C)	37.6°F (3.1°C)	2.8°F	22nd Warmest	Warmest since: 1919	1932
Sep 1920–Jan 1921 5-Month	46.0°F (7.8°C)	43.3°F (6.3°C)	2.7°F	114th Coolest	Coolest since: 1920	1977
Sep 1920–Jan 1921 5-Month	46.0°F (7.8°C)	43.3°F (6.3°C)	2.7°F	17th Warmest	Warmest since: 1914	1932
Aug 1920–Jan 1921 6-Month	50.2°F (10.1°C)	48.4°F (9.1°C)	1.8°F	106th Coolest	Coolest since: 1920	1977
Aug 1920–Jan 1921 6-Month	50.2°F (10.1°C)	48.4°F (9.1°C)	1.8°F	25th Warmest	Warmest since: 1919	1932
Jul 1920–Jan 1921 7-Month	53.6°F (12.0°C)	52.2°F (11.2°C)	1.4°F	98th Coolest	Coolest since: 1920	1977
Jul 1920–Jan 1921 7-Month	53.6°F (12.0°C)	52.2°F (11.2°C)	1.4°F	33rd Warmest	Warmest since: 1914	1932
Jun 1920–Jan 1921 8-Month	55.8°F (13.2°C)	54.6°F (12.6°C)	1.2°F	93rd Coolest	Coolest since: 1920	1918, 1977
Jun 1920–Jan 1921 8-Month	55.8°F (13.2°C)	54.6°F (12.6°C)	1.2°F	38th Warmest	Warmest since: 1919	1932
May 1920–Jan 1921 9-Month	56.3°F (13.5°C)	55.5°F (13.1°C)	0.8°F	87th Coolest	Coolest since: 1920	1918
May 1920–Jan 1921 9-Month	56.3°F (13.5°C)	55.5°F (13.1°C)	0.8°F	44th Warmest	Warmest since: 1919	1932
Apr 1920–Jan 1921 10-Month	55.3°F (12.9°C)	55.1°F (12.8°C)	0.2°F	62nd Coolest	Coolest since: 1920	1918
Apr 1920–Jan 1921 10-Month	55.3°F (12.9°C)	55.1°F (12.8°C)	0.2°F	69th Warmest	Warmest since: 1919	1932
Mar 1920–Jan 1921 11-Month	54.0°F (12.2°C)	53.7°F (12.1°C)	0.3°F	74th Coolest	Coolest since: 1920	1918
Mar 1920–Jan 1921 11-Month	54.0°F (12.2°C)	53.7°F (12.1°C)	0.3°F	57th Warmest	Warmest since: 1919	2013
Feb 1920–Jan 1921 12-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F	68th Coolest	Coolest since: 1920	1918
Feb 1920–Jan 1921 12-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F	63rd Warmest	Warmest since: 1919	2013
Aug 1919–Jan 1921 18-Month	50.1°F (10.1°C)	50.5°F (10.3°C)	-0.4°F	34th Coolest	Coolest since: 1919	1905, 1918
Aug 1919–Jan 1921 18-Month	50.1°F (10.1°C)	50.5°F (10.3°C)	-0.4°F	96th Warmest	Warmest since: 1920	2017
Feb 1919–Jan 1921 24-Month	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F	53rd Coolest	Coolest since: 1919	1918
Feb 1919–Jan 1921 24-Month	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F	77th Warmest	Warmest since: 1920	2013
Feb 1918–Jan 1921 36-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F	78th Coolest	Coolest since: 1920	1905
Feb 1918–Jan 1921 36-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F	51st Warmest	Warmest to Date	2013
Feb 1917–Jan 1921 48-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F	17th Coolest	Coolest since: 1920	1905
Feb 1917–Jan 1921 48-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F	111th Warmest	Warmest since: 1917	2025
Feb 1916–Jan 1921 60-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F	11th Coolest	Coolest since: 1920	1906
Feb 1916–Jan 1921 60-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F	116th Warmest	Warmest since: 1917	2025

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 22, 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 1921 Average Temperature Rankings

Citing This Page

Success

Error