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Statewide Rankings

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Illinois

February 1977 Average Temperature Rankings

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
February 1977 1-Month	28.6°F (-1.9°C)	29.2°F (-1.6°C)	-0.6°F	54th Coolest	Coolest since: 1975	1978
	28.6°F (-1.9°C)	29.2°F (-1.6°C)	-0.6°F	78th Warmest	Warmest since: 1976	2017
	Ties: 1907, 1965, 1975
Jan–Feb 1977 2-Month	19.4°F (-7.0°C)	27.3°F (-2.6°C)	-7.9°F	8th Coolest	Coolest since: 1963	1979
Jan–Feb 1977 2-Month	19.4°F (-7.0°C)	27.3°F (-2.6°C)	-7.9°F	124th Warmest	Warmest since: 1976	2017
Dec 1976–Feb 1977 3-Month	20.7°F (-6.3°C)	28.0°F (-2.2°C)	-7.3°F	5th Coolest	Coolest since: 1936	1978
Dec 1976–Feb 1977 3-Month	20.7°F (-6.3°C)	28.0°F (-2.2°C)	-7.3°F	126th Warmest	Warmest since: 1976	1932
Nov 1976–Feb 1977 4-Month	23.9°F (-4.5°C)	31.2°F (-0.4°C)	-7.3°F	1st Coolest	Coolest to Date	1977
Nov 1976–Feb 1977 4-Month	23.9°F (-4.5°C)	31.2°F (-0.4°C)	-7.3°F	130th Warmest	Warmest since: 1976	1932
Oct 1976–Feb 1977 5-Month	28.8°F (-1.8°C)	35.9°F (2.2°C)	-7.1°F	1st Coolest	Coolest to Date	1977
Oct 1976–Feb 1977 5-Month	28.8°F (-1.8°C)	35.9°F (2.2°C)	-7.1°F	130th Warmest	Warmest since: 1976	1932
Sep 1976–Feb 1977 6-Month	34.6°F (1.4°C)	41.0°F (5.0°C)	-6.4°F	1st Coolest	Coolest to Date	1977
Sep 1976–Feb 1977 6-Month	34.6°F (1.4°C)	41.0°F (5.0°C)	-6.4°F	130th Warmest	Warmest since: 1976	1932
Aug 1976–Feb 1977 7-Month	39.7°F (4.3°C)	45.6°F (7.6°C)	-5.9°F	1st Coolest	Coolest to Date	1977
Aug 1976–Feb 1977 7-Month	39.7°F (4.3°C)	45.6°F (7.6°C)	-5.9°F	130th Warmest	Warmest since: 1976	1932
Jul 1976–Feb 1977 8-Month	44.2°F (6.8°C)	49.4°F (9.7°C)	-5.2°F	1st Coolest	Coolest to Date	1977
Jul 1976–Feb 1977 8-Month	44.2°F (6.8°C)	49.4°F (9.7°C)	-5.2°F	130th Warmest	Warmest since: 1976	1932
Jun 1976–Feb 1977 9-Month	47.1°F (8.4°C)	51.8°F (11.0°C)	-4.7°F	1st Coolest	Coolest to Date	1977
Jun 1976–Feb 1977 9-Month	47.1°F (8.4°C)	51.8°F (11.0°C)	-4.7°F	130th Warmest	Warmest since: 1976	1932
May 1976–Feb 1977 10-Month	48.3°F (9.1°C)	52.8°F (11.6°C)	-4.5°F	2nd Coolest	Coolest since: 1918	1918
May 1976–Feb 1977 10-Month	48.3°F (9.1°C)	52.8°F (11.6°C)	-4.5°F	129th Warmest	Warmest since: 1976	1932
Apr 1976–Feb 1977 11-Month	48.8°F (9.3°C)	52.7°F (11.5°C)	-3.9°F	2nd Coolest	Coolest since: 1918	1918
Apr 1976–Feb 1977 11-Month	48.8°F (9.3°C)	52.7°F (11.5°C)	-3.9°F	129th Warmest	Warmest since: 1976	1932
Mar 1976–Feb 1977 12-Month	48.5°F (9.2°C)	51.6°F (10.9°C)	-3.1°F	2nd Coolest	Coolest since: 1918	1918
	48.5°F (9.2°C)	51.6°F (10.9°C)	-3.1°F	129th Warmest	Warmest since: 1976	2017
	Ties: 1905
Sep 1975–Feb 1977 18-Month	46.6°F (8.1°C)	48.1°F (8.9°C)	-1.5°F	9th Coolest	Coolest since: 1970	1905
Sep 1975–Feb 1977 18-Month	46.6°F (8.1°C)	48.1°F (8.9°C)	-1.5°F	121st Warmest	Warmest since: 1976	2017
Mar 1975–Feb 1977 24-Month	50.4°F (10.2°C)	51.6°F (10.9°C)	-1.2°F	12th Coolest	Coolest since: 1963	1905
Mar 1975–Feb 1977 24-Month	50.4°F (10.2°C)	51.6°F (10.9°C)	-1.2°F	118th Warmest	Warmest since: 1976	2017
Mar 1974–Feb 1977 36-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F	15th Coolest	Coolest since: 1970	1979
	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F	114th Warmest	Warmest since: 1976	2013, 2018
	Ties: 1912, 1927
Mar 1973–Feb 1977 48-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F	34th Coolest	Coolest since: 1973	1905
Mar 1973–Feb 1977 48-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F	94th Warmest	Warmest since: 1976	2025
Mar 1972–Feb 1977 60-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F	35th Coolest	Coolest since: 1973	1905
Mar 1972–Feb 1977 60-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F	92nd Warmest	Warmest since: 1976	2025

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 26, 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 1977 Average Temperature Rankings

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