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, October 1998

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
October 1998 1-Month	58.1°F (14.5°C)	55.7°F (13.2°C)	2.4°F (1.3°C)	100th Coolest	Coolest since: 1997	1925
	58.1°F (14.5°C)	55.7°F (13.2°C)	2.4°F (1.3°C)	29th Warmest	Warmest since: 1985	1963
	Ties: 1918, 1922
Sep–Oct 1998 2-Month	65.0°F (18.3°C)	61.5°F (16.4°C)	3.5°F (1.9°C)	119th Coolest	Coolest since: 1997	1917
	65.0°F (18.3°C)	61.5°F (16.4°C)	3.5°F (1.9°C)	10th Warmest	Warmest since: 1971	1971, 2016
	Ties: 1939
Aug–Oct 1998 3-Month	68.5°F (20.3°C)	65.8°F (18.8°C)	2.7°F (1.5°C)	120th Coolest	Coolest since: 1997	1976
Aug–Oct 1998 3-Month	68.5°F (20.3°C)	65.8°F (18.8°C)	2.7°F (1.5°C)	9th Warmest	Warmest since: 1947	1947, 2007
Jul–Oct 1998 4-Month	70.4°F (21.3°C)	68.5°F (20.3°C)	1.9°F (1.0°C)	114th Coolest	Coolest since: 1997	1967
Jul–Oct 1998 4-Month	70.4°F (21.3°C)	68.5°F (20.3°C)	1.9°F (1.0°C)	15th Warmest	Warmest since: 1983	1936
Jun–Oct 1998 5-Month	70.9°F (21.6°C)	69.2°F (20.7°C)	1.7°F (0.9°C)	108th Coolest	Coolest since: 1997	1917
	70.9°F (21.6°C)	69.2°F (20.7°C)	1.7°F (0.9°C)	21st Warmest	Warmest since: 1991	1936
	Ties: 1913, 1991, 2018
May–Oct 1998 6-Month	70.4°F (21.3°C)	68.2°F (20.1°C)	2.2°F (1.2°C)	117th Coolest	Coolest since: 1997	1917
May–Oct 1998 6-Month	70.4°F (21.3°C)	68.2°F (20.1°C)	2.2°F (1.2°C)	12th Warmest	Warmest since: 1991	1936
Apr–Oct 1998 7-Month	68.1°F (20.1°C)	66.0°F (18.9°C)	2.1°F (1.2°C)	119th Coolest	Coolest since: 1997	1907
	68.1°F (20.1°C)	66.0°F (18.9°C)	2.1°F (1.2°C)	10th Warmest	Warmest since: 1991	2010
	Ties: 1914
Mar–Oct 1998 8-Month	64.8°F (18.2°C)	62.9°F (17.2°C)	1.9°F (1.0°C)	118th Coolest	Coolest since: 1997	1917
	64.8°F (18.2°C)	62.9°F (17.2°C)	1.9°F (1.0°C)	11th Warmest	Warmest since: 1991	2012
	Ties: 1938, 1986
Feb–Oct 1998 9-Month	62.2°F (16.8°C)	59.5°F (15.3°C)	2.7°F (1.5°C)	124th Coolest	Coolest since: 1997	1917
	62.2°F (16.8°C)	59.5°F (15.3°C)	2.7°F (1.5°C)	5th Warmest	Warmest since: 1991	2012
	Ties: 1954, 2017
Jan–Oct 1998 10-Month	59.4°F (15.2°C)	56.2°F (13.4°C)	3.2°F (1.8°C)	126th Coolest	Coolest since: 1997	1979
	59.4°F (15.2°C)	56.2°F (13.4°C)	3.2°F (1.8°C)	3rd Warmest	Warmest since: 1921	2012
	Ties: 2017
Dec 1997–Oct 1998 11-Month	57.1°F (13.9°C)	54.1°F (12.3°C)	3.0°F (1.6°C)	124th Coolest	Coolest since: 1997	1904
Dec 1997–Oct 1998 11-Month	57.1°F (13.9°C)	54.1°F (12.3°C)	3.0°F (1.6°C)	4th Warmest	Warmest since: 1921	2012
Nov 1997–Oct 1998 12-Month	55.6°F (13.1°C)	53.0°F (11.7°C)	2.6°F (1.4°C)	120th Coolest	Coolest since: 1997	1904
	55.6°F (13.1°C)	53.0°F (11.7°C)	2.6°F (1.4°C)	8th Warmest	Warmest since: 1991	2012
	Ties: 1932, 1954
May 1997–Oct 1998 18-Month	59.3°F (15.2°C)	58.1°F (14.5°C)	1.2°F (0.7°C)	102nd Coolest	Coolest since: 1997	1904
	59.3°F (15.2°C)	58.1°F (14.5°C)	1.2°F (0.7°C)	26th Warmest	Warmest since: 1991	2012
	Ties: 1987, 2011
Nov 1996–Oct 1998 24-Month	53.9°F (12.2°C)	53.1°F (11.7°C)	0.8°F (0.5°C)	93rd Coolest	Coolest since: 1997	1979
	53.9°F (12.2°C)	53.1°F (11.7°C)	0.8°F (0.5°C)	34th Warmest	Warmest since: 1992	2017
	Ties: 1950
Nov 1995–Oct 1998 36-Month	53.1°F (11.7°C)	53.1°F (11.7°C)	0.0°F (0.0°C)	59th Coolest	Coolest since: 1997	1979
	53.1°F (11.7°C)	53.1°F (11.7°C)	0.0°F (0.0°C)	67th Warmest	Warmest since: 1995	2018
	Ties: 1898, 1945, 1976
Nov 1994–Oct 1998 48-Month	53.5°F (11.9°C)	53.0°F (11.7°C)	0.5°F (0.2°C)	80th Coolest	Coolest since: 1997	1905, 1980
	53.5°F (11.9°C)	53.0°F (11.7°C)	0.5°F (0.2°C)	45th Warmest	Warmest since: 1994	2019
	Ties: 1950, 1986, 1999, 2011, 2015
Nov 1993–Oct 1998 60-Month	53.3°F (11.8°C)	53.0°F (11.7°C)	0.3°F (0.1°C)	65th Coolest	Coolest since: 1997	1982
	53.3°F (11.8°C)	53.0°F (11.7°C)	0.3°F (0.1°C)	59th Warmest	Warmest since: 1995	2020
	Ties: 1924, 1940, 1947, 1975, 1976

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