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 1951

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
January 1951 1-Month	25.1°F (-3.8°C)	23.8°F (-4.6°C)	1.3°F (0.8°C)	68th Coolest	Coolest since: 1948	1977
	25.1°F (-3.8°C)	23.8°F (-4.6°C)	1.3°F (0.8°C)	61st Warmest	Warmest since: 1950	2006
	Ties: 2016
Dec 1950–Jan 1951 2-Month	23.0°F (-5.0°C)	26.1°F (-3.3°C)	-3.1°F (-1.7°C)	26th Coolest	Coolest since: 1945	1918
Dec 1950–Jan 1951 2-Month	23.0°F (-5.0°C)	26.1°F (-3.3°C)	-3.1°F (-1.7°C)	102nd Warmest	Warmest since: 1950	1932
Nov 1950–Jan 1951 3-Month	26.8°F (-2.9°C)	30.8°F (-0.7°C)	-4.0°F (-2.2°C)	12th Coolest	Coolest since: 1936	1977
Nov 1950–Jan 1951 3-Month	26.8°F (-2.9°C)	30.8°F (-0.7°C)	-4.0°F (-2.2°C)	116th Warmest	Warmest since: 1950	2002
Oct 1950–Jan 1951 4-Month	35.1°F (1.7°C)	36.7°F (2.6°C)	-1.6°F (-0.9°C)	29th Coolest	Coolest since: 1938	1977
	35.1°F (1.7°C)	36.7°F (2.6°C)	-1.6°F (-0.9°C)	99th Warmest	Warmest since: 1950	1932
	Ties: 1996
Sep 1950–Jan 1951 5-Month	41.1°F (5.1°C)	42.6°F (5.9°C)	-1.5°F (-0.8°C)	25th Coolest	Coolest since: 1938	1977
	41.1°F (5.1°C)	42.6°F (5.9°C)	-1.5°F (-0.8°C)	103rd Warmest	Warmest since: 1950	1932
	Ties: 1897, 1902, 1938, 1952, 1962, 1986
Aug 1950–Jan 1951 6-Month	45.7°F (7.6°C)	47.8°F (8.8°C)	-2.1°F (-1.2°C)	12th Coolest	Coolest since: 1936	1977
	45.7°F (7.6°C)	47.8°F (8.8°C)	-2.1°F (-1.2°C)	116th Warmest	Warmest since: 1950	1932
	Ties: 1968, 1979
Jul 1950–Jan 1951 7-Month	49.4°F (9.7°C)	51.8°F (11.0°C)	-2.4°F (-1.3°C)	6th Coolest	Coolest since: 1930	1977
	49.4°F (9.7°C)	51.8°F (11.0°C)	-2.4°F (-1.3°C)	122nd Warmest	Warmest since: 1950	1932
	Ties: 1968
Jun 1950–Jan 1951 8-Month	52.0°F (11.1°C)	54.2°F (12.3°C)	-2.2°F (-1.2°C)	5th Coolest	Coolest since: 1930	1977
	52.0°F (11.1°C)	54.2°F (12.3°C)	-2.2°F (-1.2°C)	123rd Warmest	Warmest since: 1950	1932
	Ties: 1970, 1997
May 1950–Jan 1951 9-Month	53.3°F (11.8°C)	55.2°F (12.9°C)	-1.9°F (-1.1°C)	13th Coolest	Coolest since: 1946	1918, 1977
May 1950–Jan 1951 9-Month	53.3°F (11.8°C)	55.2°F (12.9°C)	-1.9°F (-1.1°C)	115th Warmest	Warmest since: 1950	1932
Apr 1950–Jan 1951 10-Month	52.5°F (11.4°C)	54.8°F (12.7°C)	-2.3°F (-1.3°C)	6th Coolest	Coolest since: 1936	1918
	52.5°F (11.4°C)	54.8°F (12.7°C)	-2.3°F (-1.3°C)	122nd Warmest	Warmest since: 1950	1932
	Ties: 1997
Mar 1950–Jan 1951 11-Month	50.9°F (10.5°C)	53.3°F (11.8°C)	-2.4°F (-1.3°C)	4th Coolest	Coolest since: 1918	1918
Mar 1950–Jan 1951 11-Month	50.9°F (10.5°C)	53.3°F (11.8°C)	-2.4°F (-1.3°C)	124th Warmest	Warmest since: 1950	1932, 2013, 2017
Feb 1950–Jan 1951 12-Month	49.0°F (9.4°C)	51.2°F (10.7°C)	-2.2°F (-1.3°C)	5th Coolest	Coolest since: 1918	1918
Feb 1950–Jan 1951 12-Month	49.0°F (9.4°C)	51.2°F (10.7°C)	-2.2°F (-1.3°C)	123rd Warmest	Warmest since: 1950	1932
Aug 1949–Jan 1951 18-Month	49.1°F (9.5°C)	50.0°F (10.0°C)	-0.9°F (-0.5°C)	23rd Coolest	Coolest since: 1930	1905, 1918
	49.1°F (9.5°C)	50.0°F (10.0°C)	-0.9°F (-0.5°C)	104th Warmest	Warmest since: 1950	2017
	Ties: 1919, 1971
Feb 1949–Jan 1951 24-Month	50.8°F (10.4°C)	51.2°F (10.7°C)	-0.4°F (-0.3°C)	35th Coolest	Coolest since: 1946	1918
	50.8°F (10.4°C)	51.2°F (10.7°C)	-0.4°F (-0.3°C)	92nd Warmest	Warmest since: 1950	1932
	Ties: 1913, 1928, 1946, 1983, 1986, 2016
Feb 1948–Jan 1951 36-Month	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	60th Coolest	Coolest since: 1946	1905
	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	66th Warmest	Warmest since: 1950	1933
	Ties: 1899, 1967, 1975, 1987
Feb 1947–Jan 1951 48-Month	51.0°F (10.6°C)	51.2°F (10.7°C)	-0.2°F (-0.1°C)	41st Coolest	Coolest since: 1946	1905
	51.0°F (10.6°C)	51.2°F (10.7°C)	-0.2°F (-0.1°C)	84th Warmest	Warmest since: 1950	1934
	Ties: 1899, 1909, 1929, 1954, 1965, 1984, 1985, 1986
Feb 1946–Jan 1951 60-Month	51.5°F (10.8°C)	51.2°F (10.7°C)	0.3°F (0.1°C)	72nd Coolest	Coolest since: 1949	1906
	51.5°F (10.8°C)	51.2°F (10.7°C)	0.3°F (0.1°C)	52nd Warmest	Warmest since: 1950	1935
	Ties: 1947, 1949, 1995, 2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published November 2022, retrieved on November 28, 2022 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings