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, December 1988

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1988 1-Month	30.2°F (-1.0°C)	28.3°F (-2.1°C)	1.9°F (1.1°C)	72nd Coolest	Coolest since: 1985	1983
December 1988 1-Month	30.2°F (-1.0°C)	28.3°F (-2.1°C)	1.9°F (1.1°C)	57th Warmest	Warmest since: 1987	2015
Nov–Dec 1988 2-Month	35.8°F (2.1°C)	34.3°F (1.3°C)	1.5°F (0.8°C)	86th Coolest	Coolest since: 1986	2000
	35.8°F (2.1°C)	34.3°F (1.3°C)	1.5°F (0.8°C)	43rd Warmest	Warmest since: 1987	1931
	Ties: 1896, 1938
Oct–Dec 1988 3-Month	40.1°F (4.5°C)	41.0°F (5.0°C)	-0.9°F (-0.5°C)	37th Coolest	Coolest since: 1985	1976
	40.1°F (4.5°C)	41.0°F (5.0°C)	-0.9°F (-0.5°C)	92nd Warmest	Warmest since: 1987	1931
	Ties: 1906, 1944
Sep–Dec 1988 4-Month	47.1°F (8.4°C)	47.3°F (8.5°C)	-0.2°F (-0.1°C)	54th Coolest	Coolest since: 1985	1976
	47.1°F (8.4°C)	47.3°F (8.5°C)	-0.2°F (-0.1°C)	75th Warmest	Warmest since: 1987	1931
	Ties: 1952, 1957
Aug–Dec 1988 5-Month	53.3°F (11.8°C)	52.5°F (11.4°C)	0.8°F (0.4°C)	84th Coolest	Coolest since: 1987	1976
	53.3°F (11.8°C)	52.5°F (11.4°C)	0.8°F (0.4°C)	45th Warmest	Warmest since: 1987	1931
	Ties: 1934, 1960, 1979, 1987
Jul–Dec 1988 6-Month	57.5°F (14.2°C)	56.5°F (13.6°C)	1.0°F (0.6°C)	93rd Coolest	Coolest since: 1986	1976
	57.5°F (14.2°C)	56.5°F (13.6°C)	1.0°F (0.6°C)	36th Warmest	Warmest since: 1987	1931
	Ties: 1923, 1965, 2006
Jun–Dec 1988 7-Month	59.8°F (15.4°C)	58.6°F (14.8°C)	1.2°F (0.6°C)	98th Coolest	Coolest since: 1986	1976
	59.8°F (15.4°C)	58.6°F (14.8°C)	1.2°F (0.6°C)	31st Warmest	Warmest since: 1987	1931
	Ties: 1899, 1914, 2012
May–Dec 1988 8-Month	60.5°F (15.8°C)	59.1°F (15.1°C)	1.4°F (0.7°C)	104th Coolest	Coolest since: 1986	1917
	60.5°F (15.8°C)	59.1°F (15.1°C)	1.4°F (0.7°C)	25th Warmest	Warmest since: 1987	1931
	Ties: 1918, 1999
Apr–Dec 1988 9-Month	59.6°F (15.3°C)	58.2°F (14.6°C)	1.4°F (0.7°C)	102nd Coolest	Coolest since: 1986	1917
	59.6°F (15.3°C)	58.2°F (14.6°C)	1.4°F (0.7°C)	27th Warmest	Warmest since: 1987	1931
	Ties: 1956, 1971, 1991, 2006
Mar–Dec 1988 10-Month	57.6°F (14.2°C)	56.3°F (13.5°C)	1.3°F (0.7°C)	102nd Coolest	Coolest since: 1986	1917
	57.6°F (14.2°C)	56.3°F (13.5°C)	1.3°F (0.7°C)	27th Warmest	Warmest since: 1987	2012
	Ties: 1918, 1956, 1999
Feb–Dec 1988 11-Month	54.6°F (12.6°C)	53.7°F (12.1°C)	0.9°F (0.5°C)	93rd Coolest	Coolest since: 1986	1917
	54.6°F (12.6°C)	53.7°F (12.1°C)	0.9°F (0.5°C)	36th Warmest	Warmest since: 1987	2012
	Ties: 1971, 1973
Jan–Dec 1988 12-Month	51.9°F (11.1°C)	51.2°F (10.7°C)	0.7°F (0.4°C)	88th Coolest	Coolest since: 1985	1917
	51.9°F (11.1°C)	51.2°F (10.7°C)	0.7°F (0.4°C)	41st Warmest	Warmest since: 1987	2012
	Ties: 1908, 1936, 1955, 2004
Jul 1987–Dec 1988 18-Month	53.8°F (12.1°C)	53.0°F (11.7°C)	0.8°F (0.4°C)	94th Coolest	Coolest since: 1986	1904
	53.8°F (12.1°C)	53.0°F (11.7°C)	0.8°F (0.4°C)	34th Warmest	Warmest since: 1987	2012
	Ties: 2000
Jan 1987–Dec 1988 24-Month	53.0°F (11.7°C)	51.2°F (10.7°C)	1.8°F (1.0°C)	114th Coolest	Coolest since: 1986	1979
	53.0°F (11.7°C)	51.2°F (10.7°C)	1.8°F (1.0°C)	14th Warmest	Warmest since: 1987	2017
	Ties: 1991
Jan 1986–Dec 1988 36-Month	52.7°F (11.5°C)	51.2°F (10.7°C)	1.5°F (0.8°C)	114th Coolest	Coolest since: 1987	1905
	52.7°F (11.5°C)	51.2°F (10.7°C)	1.5°F (0.8°C)	13th Warmest	Warmest since: 1955	2017
	Ties: 1922
Jan 1985–Dec 1988 48-Month	52.0°F (11.1°C)	51.2°F (10.7°C)	0.8°F (0.4°C)	94th Coolest	Coolest since: 1987	1905
	52.0°F (11.1°C)	51.2°F (10.7°C)	0.8°F (0.4°C)	32nd Warmest	Warmest since: 1957	1934
	Ties: 1954, 1989, 2003, 2004
Jan 1984–Dec 1988 60-Month	51.9°F (11.1°C)	51.2°F (10.7°C)	0.7°F (0.4°C)	91st Coolest	Coolest since: 1987	1905
	51.9°F (11.1°C)	51.2°F (10.7°C)	0.7°F (0.4°C)	34th Warmest	Warmest since: 1957	1934
	Ties: 1937, 1940, 2022

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 22, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings