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 1975

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1975 1-Month	31.6°F (-0.2°C)	28.3°F (-2.1°C)	3.3°F (1.9°C)	89th Coolest	Coolest since: 1974	1983
	31.6°F (-0.2°C)	28.3°F (-2.1°C)	3.3°F (1.9°C)	40th Warmest	Warmest since: 1971	2015
	Ties: 1947, 2020
Nov–Dec 1975 2-Month	38.5°F (3.6°C)	34.2°F (1.2°C)	4.3°F (2.4°C)	113th Coolest	Coolest since: 1974	2000
	38.5°F (3.6°C)	34.2°F (1.2°C)	4.3°F (2.4°C)	16th Warmest	Warmest since: 1965	1931
	Ties: 1918
Oct–Dec 1975 3-Month	44.4°F (6.9°C)	41.0°F (5.0°C)	3.4°F (1.9°C)	114th Coolest	Coolest since: 1974	1976
	44.4°F (6.9°C)	41.0°F (5.0°C)	3.4°F (1.9°C)	15th Warmest	Warmest since: 1971	1931
	Ties: 1918, 1949
Sep–Dec 1975 4-Month	48.7°F (9.3°C)	47.3°F (8.5°C)	1.4°F (0.8°C)	93rd Coolest	Coolest since: 1974	1976
	48.7°F (9.3°C)	47.3°F (8.5°C)	1.4°F (0.8°C)	36th Warmest	Warmest since: 1971	1931
	Ties: 1948, 1990
Aug–Dec 1975 5-Month	53.9°F (12.2°C)	52.5°F (11.4°C)	1.4°F (0.8°C)	103rd Coolest	Coolest since: 1974	1976
	53.9°F (12.2°C)	52.5°F (11.4°C)	1.4°F (0.8°C)	26th Warmest	Warmest since: 1971	1931
	Ties: 1946, 1999, 2005
Jul–Dec 1975 6-Month	57.4°F (14.1°C)	56.5°F (13.6°C)	0.9°F (0.5°C)	89th Coolest	Coolest since: 1974	1976
	57.4°F (14.1°C)	56.5°F (13.6°C)	0.9°F (0.5°C)	40th Warmest	Warmest since: 1971	1931
	Ties: 1948, 2019
Jun–Dec 1975 7-Month	59.5°F (15.3°C)	58.6°F (14.8°C)	0.9°F (0.5°C)	89th Coolest	Coolest since: 1974	1976
	59.5°F (15.3°C)	58.6°F (14.8°C)	0.9°F (0.5°C)	40th Warmest	Warmest since: 1971	1931
	Ties: 1980, 2006, 2020
May–Dec 1975 8-Month	60.2°F (15.7°C)	59.1°F (15.1°C)	1.1°F (0.6°C)	95th Coolest	Coolest since: 1974	1917
	60.2°F (15.7°C)	59.1°F (15.1°C)	1.1°F (0.6°C)	34th Warmest	Warmest since: 1971	1931
	Ties: 1911
Apr–Dec 1975 9-Month	58.8°F (14.9°C)	58.2°F (14.6°C)	0.6°F (0.3°C)	77th Coolest	Coolest since: 1974	1917
	58.8°F (14.9°C)	58.2°F (14.6°C)	0.6°F (0.3°C)	52nd Warmest	Warmest since: 1971	1931
	Ties: 1947
Mar–Dec 1975 10-Month	56.3°F (13.5°C)	56.3°F (13.5°C)	0.0°F (0.0°C)	61st Coolest	Coolest since: 1974	1917
	56.3°F (13.5°C)	56.3°F (13.5°C)	0.0°F (0.0°C)	68th Warmest	Warmest since: 1973	2012
	Ties: 1923, 1981, 2002
Feb–Dec 1975 11-Month	53.6°F (12.0°C)	53.8°F (12.1°C)	-0.2°F (-0.1°C)	54th Coolest	Coolest since: 1974	1917
	53.6°F (12.0°C)	53.8°F (12.1°C)	-0.2°F (-0.1°C)	75th Warmest	Warmest since: 1974	2012
	Ties: 1920, 1974
Jan–Dec 1975 12-Month	51.4°F (10.8°C)	51.2°F (10.7°C)	0.2°F (0.1°C)	68th Coolest	Coolest since: 1974	1917
	51.4°F (10.8°C)	51.2°F (10.7°C)	0.2°F (0.1°C)	61st Warmest	Warmest since: 1973	2012
	Ties: 1942, 1984
Jul 1974–Dec 1975 18-Month	52.8°F (11.6°C)	53.0°F (11.7°C)	-0.2°F (-0.1°C)	52nd Coolest	Coolest since: 1972	1904
	52.8°F (11.6°C)	53.0°F (11.7°C)	-0.2°F (-0.1°C)	76th Warmest	Warmest since: 1974	2012
	Ties: 1898, 1915, 1952, 1959
Jan 1974–Dec 1975 24-Month	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	61st Coolest	Coolest since: 1973	1979
	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	67th Warmest	Warmest since: 1974	2017
	Ties: 1901, 1908, 1909, 1920, 1971
Jan 1973–Dec 1975 36-Month	51.6°F (10.9°C)	51.2°F (10.7°C)	0.4°F (0.2°C)	80th Coolest	Coolest since: 1974	1905
	51.6°F (10.9°C)	51.2°F (10.7°C)	0.4°F (0.2°C)	47th Warmest	Warmest since: 1957	2017
	Ties: 1949, 1953, 1990, 2011
Jan 1972–Dec 1975 48-Month	51.1°F (10.6°C)	51.2°F (10.7°C)	-0.1°F (-0.1°C)	48th Coolest	Coolest since: 1973	1905
	51.1°F (10.6°C)	51.2°F (10.7°C)	-0.1°F (-0.1°C)	78th Warmest	Warmest since: 1974	1934
	Ties: 1899, 1915, 1928, 1966, 1973, 1983, 1984
Jan 1971–Dec 1975 60-Month	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	53rd Coolest	Coolest since: 1974	1905
	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1959	1934
	Ties: 1900, 1911, 1921, 1977, 1995

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings