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 7. East Southeast

Average Temperature Rankings, May 1966

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1966 1-Month	59.3°F (15.2°C)	63.2°F (17.3°C)	-3.9°F (-2.1°C)	11th Coolest	Coolest since: 1961	1924
	59.3°F (15.2°C)	63.2°F (17.3°C)	-3.9°F (-2.1°C)	118th Warmest	Warmest since: 1965	2018
	Ties: 1925
Apr–May 1966 2-Month	54.8°F (12.7°C)	58.0°F (14.4°C)	-3.2°F (-1.7°C)	8th Coolest	Coolest since: 1961	1907
	54.8°F (12.7°C)	58.0°F (14.4°C)	-3.2°F (-1.7°C)	121st Warmest	Warmest since: 1965	1896
	Ties: 1904, 1920
Mar–May 1966 3-Month	51.0°F (10.6°C)	52.6°F (11.4°C)	-1.6°F (-0.8°C)	31st Coolest	Coolest since: 1961	1960
	51.0°F (10.6°C)	52.6°F (11.4°C)	-1.6°F (-0.8°C)	98th Warmest	Warmest since: 1965	2012
	Ties: 2013
Feb–May 1966 4-Month	45.8°F (7.7°C)	47.3°F (8.5°C)	-1.5°F (-0.8°C)	35th Coolest	Coolest since: 1960	1978
	45.8°F (7.7°C)	47.3°F (8.5°C)	-1.5°F (-0.8°C)	94th Warmest	Warmest since: 1965	2012
	Ties: 1968
Jan–May 1966 5-Month	41.3°F (5.2°C)	43.4°F (6.3°C)	-2.1°F (-1.1°C)	19th Coolest	Coolest since: 1960	1978
	41.3°F (5.2°C)	43.4°F (6.3°C)	-2.1°F (-1.1°C)	110th Warmest	Warmest since: 1965	2012
	Ties: 1901, 1905
Dec 1965–May 1966 6-Month	40.8°F (4.9°C)	41.4°F (5.2°C)	-0.6°F (-0.3°C)	40th Coolest	Coolest since: 1963	1978
	40.8°F (4.9°C)	41.4°F (5.2°C)	-0.6°F (-0.3°C)	88th Warmest	Warmest since: 1965	2012
	Ties: 1923, 2001, 2015
Nov 1965–May 1966 7-Month	41.5°F (5.3°C)	41.5°F (5.3°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1964	1978
	41.5°F (5.3°C)	41.5°F (5.3°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1965	2012
	Ties: 1913, 1930, 1959, 1964
Oct 1965–May 1966 8-Month	43.2°F (6.2°C)	43.4°F (6.3°C)	-0.2°F (-0.1°C)	46th Coolest	Coolest since: 1963	1978
	43.2°F (6.2°C)	43.4°F (6.3°C)	-0.2°F (-0.1°C)	82nd Warmest	Warmest since: 1965	2012
	Ties: 1943, 1962, 1973, 1981
Sep 1965–May 1966 9-Month	45.9°F (7.7°C)	46.0°F (7.8°C)	-0.1°F (-0.1°C)	51st Coolest	Coolest since: 1963	1978
	45.9°F (7.7°C)	46.0°F (7.8°C)	-0.1°F (-0.1°C)	77th Warmest	Warmest since: 1965	2012
	Ties: 1947, 1959, 1967, 2003
Aug 1965–May 1966 10-Month	48.5°F (9.2°C)	48.8°F (9.3°C)	-0.3°F (-0.1°C)	40th Coolest	Coolest since: 1963	1978
	48.5°F (9.2°C)	48.8°F (9.3°C)	-0.3°F (-0.1°C)	88th Warmest	Warmest since: 1965	2012
	Ties: 1908, 1929, 1943, 1952, 1967
Jul 1965–May 1966 11-Month	50.8°F (10.4°C)	51.3°F (10.7°C)	-0.5°F (-0.3°C)	36th Coolest	Coolest since: 1963	1904
	50.8°F (10.4°C)	51.3°F (10.7°C)	-0.5°F (-0.3°C)	92nd Warmest	Warmest since: 1965	2012
	Ties: 1917, 1930, 1947, 2001
Jun 1965–May 1966 12-Month	52.6°F (11.4°C)	53.1°F (11.7°C)	-0.5°F (-0.3°C)	42nd Coolest	Coolest since: 1963	1904
	52.6°F (11.4°C)	53.1°F (11.7°C)	-0.5°F (-0.3°C)	86th Warmest	Warmest since: 1965	2012
	Ties: 1906, 1947, 1952, 1961, 2001
Dec 1964–May 1966 18-Month	48.9°F (9.4°C)	49.2°F (9.6°C)	-0.3°F (-0.2°C)	48th Coolest	Coolest since: 1964	1979
	48.9°F (9.4°C)	49.2°F (9.6°C)	-0.3°F (-0.2°C)	79th Warmest	Warmest since: 1965	2017
	Ties: 1910, 1927
Jun 1964–May 1966 24-Month	52.9°F (11.6°C)	53.1°F (11.7°C)	-0.2°F (-0.1°C)	49th Coolest	Coolest since: 1964	1905, 1978
	52.9°F (11.6°C)	53.1°F (11.7°C)	-0.2°F (-0.1°C)	78th Warmest	Warmest since: 1965	2017
	Ties: 1909, 1910, 1916, 1928, 1937
Jun 1963–May 1966 36-Month	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	56th Coolest	Coolest since: 1965	1979
	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 1958	2018
	Ties: 1898, 1958, 1998
Jun 1962–May 1966 48-Month	52.7°F (11.5°C)	53.0°F (11.7°C)	-0.3°F (-0.2°C)	34th Coolest	Coolest since: 1964	1980
	52.7°F (11.5°C)	53.0°F (11.7°C)	-0.3°F (-0.2°C)	91st Warmest	Warmest since: 1965	2019
	Ties: 1901, 1910, 1928, 1931, 1972, 1973, 1984, 1985, 1997
Jun 1961–May 1966 60-Month	52.7°F (11.5°C)	53.0°F (11.7°C)	-0.3°F (-0.2°C)	36th Coolest	Coolest since: 1965	1981
	52.7°F (11.5°C)	53.0°F (11.7°C)	-0.3°F (-0.2°C)	88th Warmest	Warmest since: 1965	2020
	Ties: 1910, 1911, 1914, 1921, 1960, 1965, 1973

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings