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, September 1966

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1966 1-Month	64.3°F (17.9°C)	67.4°F (19.7°C)	-3.1°F (-1.8°C)	13th Coolest	Coolest since: 1951	1918
September 1966 1-Month	64.3°F (17.9°C)	67.4°F (19.7°C)	-3.1°F (-1.8°C)	116th Warmest	Warmest since: 1965	1925
Aug–Sep 1966 2-Month	68.2°F (20.1°C)	70.8°F (21.6°C)	-2.6°F (-1.5°C)	10th Coolest	Coolest since: 1950	1967
Aug–Sep 1966 2-Month	68.2°F (20.1°C)	70.8°F (21.6°C)	-2.6°F (-1.5°C)	119th Warmest	Warmest since: 1965	1936
Jul–Sep 1966 3-Month	72.1°F (22.3°C)	72.7°F (22.6°C)	-0.6°F (-0.3°C)	48th Coolest	Coolest since: 1965	1967
	72.1°F (22.3°C)	72.7°F (22.6°C)	-0.6°F (-0.3°C)	81st Warmest	Warmest since: 1964	1936
	Ties: 1905, 1969, 2008
Jun–Sep 1966 4-Month	72.0°F (22.2°C)	72.6°F (22.6°C)	-0.6°F (-0.4°C)	45th Coolest	Coolest since: 1965	1967
	72.0°F (22.2°C)	72.6°F (22.6°C)	-0.6°F (-0.4°C)	84th Warmest	Warmest since: 1964	1936
	Ties: 1981, 2013
May–Sep 1966 5-Month	69.5°F (20.8°C)	70.7°F (21.5°C)	-1.2°F (-0.7°C)	23rd Coolest	Coolest since: 1961	1924
	69.5°F (20.8°C)	70.7°F (21.5°C)	-1.2°F (-0.7°C)	106th Warmest	Warmest since: 1965	1936
	Ties: 1961, 1979
Apr–Sep 1966 6-Month	66.3°F (19.1°C)	67.7°F (19.8°C)	-1.4°F (-0.7°C)	18th Coolest	Coolest since: 1961	1907
	66.3°F (19.1°C)	67.7°F (19.8°C)	-1.4°F (-0.7°C)	111th Warmest	Warmest since: 1965	2010
	Ties: 1935, 1982
Mar–Sep 1966 7-Month	63.0°F (17.2°C)	64.0°F (17.8°C)	-1.0°F (-0.6°C)	28th Coolest	Coolest since: 1961	1924
	63.0°F (17.2°C)	64.0°F (17.8°C)	-1.0°F (-0.6°C)	101st Warmest	Warmest since: 1965	2012
	Ties: 1897, 1940, 2013
Feb–Sep 1966 8-Month	58.9°F (14.9°C)	59.9°F (15.5°C)	-1.0°F (-0.6°C)	24th Coolest	Coolest since: 1960	1904, 1924
	58.9°F (14.9°C)	59.9°F (15.5°C)	-1.0°F (-0.6°C)	105th Warmest	Warmest since: 1965	2012
	Ties: 1906, 1975
Jan–Sep 1966 9-Month	54.9°F (12.7°C)	56.3°F (13.5°C)	-1.4°F (-0.8°C)	17th Coolest	Coolest since: 1963	1979
	54.9°F (12.7°C)	56.3°F (13.5°C)	-1.4°F (-0.8°C)	112th Warmest	Warmest since: 1965	2012
	Ties: 1960
Dec 1965–Sep 1966 10-Month	53.3°F (11.8°C)	53.9°F (12.2°C)	-0.6°F (-0.4°C)	38th Coolest	Coolest since: 1963	1904
	53.3°F (11.8°C)	53.9°F (12.2°C)	-0.6°F (-0.4°C)	90th Warmest	Warmest since: 1965	2012
	Ties: 1997, 2001
Nov 1965–Sep 1966 11-Month	52.6°F (11.4°C)	52.8°F (11.6°C)	-0.2°F (-0.2°C)	48th Coolest	Coolest since: 1963	1904
	52.6°F (11.4°C)	52.8°F (11.6°C)	-0.2°F (-0.2°C)	80th Warmest	Warmest since: 1965	2012
	Ties: 1906, 2009
Oct 1965–Sep 1966 12-Month	52.8°F (11.6°C)	53.1°F (11.7°C)	-0.3°F (-0.1°C)	49th Coolest	Coolest since: 1965	1904
	52.8°F (11.6°C)	53.1°F (11.7°C)	-0.3°F (-0.1°C)	79th Warmest	Warmest since: 1964	2012
	Ties: 1896, 1981
Apr 1965–Sep 1966 18-Month	58.0°F (14.4°C)	58.0°F (14.4°C)	0.0°F (0.0°C)	57th Coolest	Coolest since: 1963	1918
	58.0°F (14.4°C)	58.0°F (14.4°C)	0.0°F (0.0°C)	71st Warmest	Warmest since: 1965	2012
	Ties: 1896, 1948, 1950, 1973, 1990, 2003
Oct 1964–Sep 1966 24-Month	52.7°F (11.5°C)	53.0°F (11.7°C)	-0.3°F (-0.2°C)	43rd Coolest	Coolest since: 1963	1979
	52.7°F (11.5°C)	53.0°F (11.7°C)	-0.3°F (-0.2°C)	84th Warmest	Warmest since: 1965	2017
	Ties: 1977
Oct 1963–Sep 1966 36-Month	53.1°F (11.7°C)	53.1°F (11.7°C)	0.0°F (0.0°C)	59th Coolest	Coolest since: 1965	1979
	53.1°F (11.7°C)	53.1°F (11.7°C)	0.0°F (0.0°C)	67th Warmest	Warmest since: 1957	2018
	Ties: 1916, 1947, 2016
Oct 1962–Sep 1966 48-Month	52.8°F (11.6°C)	53.1°F (11.7°C)	-0.3°F (-0.1°C)	42nd Coolest	Coolest since: 1965	1980
	52.8°F (11.6°C)	53.1°F (11.7°C)	-0.3°F (-0.1°C)	83rd Warmest	Warmest since: 1959	2019
	Ties: 1903, 1996
Oct 1961–Sep 1966 60-Month	52.7°F (11.5°C)	53.0°F (11.7°C)	-0.3°F (-0.2°C)	35th Coolest	Coolest since: 1965	1982
	52.7°F (11.5°C)	53.0°F (11.7°C)	-0.3°F (-0.2°C)	89th Warmest	Warmest since: 1960	2020
	Ties: 1913, 1929, 1960, 1967, 1968, 1973, 1985

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings