Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. 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, Climate Division 3. West

Average Temperature Rankings, January 1979

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
January 1979 1-Month	10.2°F (-12.1°C)	23.8°F (-4.6°C)	-13.6°F (-7.5°C)	3rd Coolest	Coolest since: 1977	1977
January 1979 1-Month	10.2°F (-12.1°C)	23.8°F (-4.6°C)	-13.6°F (-7.5°C)	126th Warmest	Warmest since: 1978	2006
Dec 1978–Jan 1979 2-Month	18.6°F (-7.4°C)	26.1°F (-3.3°C)	-7.5°F (-4.1°C)	3rd Coolest	Coolest since: 1977	1918
Dec 1978–Jan 1979 2-Month	18.6°F (-7.4°C)	26.1°F (-3.3°C)	-7.5°F (-4.1°C)	125th Warmest	Warmest since: 1978	1932
Nov 1978–Jan 1979 3-Month	26.4°F (-3.1°C)	30.8°F (-0.7°C)	-4.4°F (-2.4°C)	10th Coolest	Coolest since: 1978	1977
Nov 1978–Jan 1979 3-Month	26.4°F (-3.1°C)	30.8°F (-0.7°C)	-4.4°F (-2.4°C)	118th Warmest	Warmest since: 1976	2002
Oct 1978–Jan 1979 4-Month	32.8°F (0.4°C)	36.7°F (2.6°C)	-3.9°F (-2.2°C)	7th Coolest	Coolest since: 1978	1977
Oct 1978–Jan 1979 4-Month	32.8°F (0.4°C)	36.7°F (2.6°C)	-3.9°F (-2.2°C)	121st Warmest	Warmest since: 1976	1932
Sep 1978–Jan 1979 5-Month	40.3°F (4.6°C)	42.6°F (5.9°C)	-2.3°F (-1.3°C)	13th Coolest	Coolest since: 1978	1977
	40.3°F (4.6°C)	42.6°F (5.9°C)	-2.3°F (-1.3°C)	115th Warmest	Warmest since: 1976	1932
	Ties: 1982, 2014
Aug 1978–Jan 1979 6-Month	45.7°F (7.6°C)	47.8°F (8.8°C)	-2.1°F (-1.2°C)	12th Coolest	Coolest since: 1978	1977
	45.7°F (7.6°C)	47.8°F (8.8°C)	-2.1°F (-1.2°C)	116th Warmest	Warmest since: 1976	1932
	Ties: 1951, 1968
Jul 1978–Jan 1979 7-Month	49.9°F (9.9°C)	51.8°F (11.0°C)	-1.9°F (-1.1°C)	17th Coolest	Coolest since: 1978	1977
Jul 1978–Jan 1979 7-Month	49.9°F (9.9°C)	51.8°F (11.0°C)	-1.9°F (-1.1°C)	111th Warmest	Warmest since: 1976	1932
Jun 1978–Jan 1979 8-Month	52.6°F (11.4°C)	54.2°F (12.3°C)	-1.6°F (-0.9°C)	21st Coolest	Coolest since: 1978	1977
	52.6°F (11.4°C)	54.2°F (12.3°C)	-1.6°F (-0.9°C)	107th Warmest	Warmest since: 1976	1932
	Ties: 1927, 1952, 1963
May 1978–Jan 1979 9-Month	53.5°F (11.9°C)	55.1°F (12.8°C)	-1.6°F (-0.9°C)	14th Coolest	Coolest since: 1977	1918, 1977
	53.5°F (11.9°C)	55.1°F (12.8°C)	-1.6°F (-0.9°C)	114th Warmest	Warmest since: 1978	1932
	Ties: 1962, 1993, 1994, 2009
Apr 1978–Jan 1979 10-Month	53.4°F (11.9°C)	54.8°F (12.7°C)	-1.4°F (-0.8°C)	22nd Coolest	Coolest since: 1977	1918
Apr 1978–Jan 1979 10-Month	53.4°F (11.9°C)	54.8°F (12.7°C)	-1.4°F (-0.8°C)	106th Warmest	Warmest since: 1978	1932
Mar 1978–Jan 1979 11-Month	51.5°F (10.8°C)	53.4°F (11.9°C)	-1.9°F (-1.1°C)	10th Coolest	Coolest since: 1977	1918
	51.5°F (10.8°C)	53.4°F (11.9°C)	-1.9°F (-1.1°C)	118th Warmest	Warmest since: 1978	1932, 2013, 2017
	Ties: 1952, 1994
Feb 1978–Jan 1979 12-Month	48.5°F (9.2°C)	51.2°F (10.7°C)	-2.7°F (-1.5°C)	2nd Coolest	Coolest since: 1918	1918
	48.5°F (9.2°C)	51.2°F (10.7°C)	-2.7°F (-1.5°C)	126th Warmest	Warmest since: 1978	1932
	Ties: 1905
Aug 1977–Jan 1979 18-Month	47.2°F (8.4°C)	50.0°F (10.0°C)	-2.8°F (-1.6°C)	3rd Coolest	Coolest since: 1918	1905, 1918
Aug 1977–Jan 1979 18-Month	47.2°F (8.4°C)	50.0°F (10.0°C)	-2.8°F (-1.6°C)	124th Warmest	Warmest since: 1978	2017
Feb 1977–Jan 1979 24-Month	50.0°F (10.0°C)	51.2°F (10.7°C)	-1.2°F (-0.7°C)	13th Coolest	Coolest since: 1977	1918
	50.0°F (10.0°C)	51.2°F (10.7°C)	-1.2°F (-0.7°C)	114th Warmest	Warmest since: 1978	1932
	Ties: 1930, 1970, 1977, 1994, 2010
Feb 1976–Jan 1979 36-Month	49.7°F (9.8°C)	51.2°F (10.7°C)	-1.5°F (-0.9°C)	4th Coolest	Coolest since: 1918	1905
Feb 1976–Jan 1979 36-Month	49.7°F (9.8°C)	51.2°F (10.7°C)	-1.5°F (-0.9°C)	122nd Warmest	Warmest since: 1978	1933
Feb 1975–Jan 1979 48-Month	50.0°F (10.0°C)	51.2°F (10.7°C)	-1.2°F (-0.7°C)	6th Coolest	Coolest since: 1918	1905
Feb 1975–Jan 1979 48-Month	50.0°F (10.0°C)	51.2°F (10.7°C)	-1.2°F (-0.7°C)	119th Warmest	Warmest since: 1978	1934
Feb 1974–Jan 1979 60-Month	50.3°F (10.2°C)	51.2°F (10.7°C)	-0.9°F (-0.5°C)	9th Coolest	Coolest since: 1971	1906
	50.3°F (10.2°C)	51.2°F (10.7°C)	-0.9°F (-0.5°C)	115th Warmest	Warmest since: 1978	1935
	Ties: 1971, 1983, 1997

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings