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 1939

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
October 1939 1-Month	57.7°F (14.3°C)	55.7°F (13.2°C)	2.0°F (1.1°C)	95th Coolest	Coolest since: 1937	1925
October 1939 1-Month	57.7°F (14.3°C)	55.7°F (13.2°C)	2.0°F (1.1°C)	34th Warmest	Warmest since: 1938	1963
Sep–Oct 1939 2-Month	65.0°F (18.3°C)	61.5°F (16.4°C)	3.5°F (1.9°C)	119th Coolest	Coolest since: 1938	1917
	65.0°F (18.3°C)	61.5°F (16.4°C)	3.5°F (1.9°C)	10th Warmest	Warmest since: 1931	1971, 2016
	Ties: 1998
Aug–Oct 1939 3-Month	67.7°F (19.8°C)	65.8°F (18.8°C)	1.9°F (1.0°C)	110th Coolest	Coolest since: 1937	1976
	67.7°F (19.8°C)	65.8°F (18.8°C)	1.9°F (1.0°C)	19th Warmest	Warmest since: 1938	1947, 2007
	Ties: 1922, 1953, 2018
Jul–Oct 1939 4-Month	69.8°F (21.0°C)	68.4°F (20.2°C)	1.4°F (0.8°C)	102nd Coolest	Coolest since: 1937	1967
	69.8°F (21.0°C)	68.4°F (20.2°C)	1.4°F (0.8°C)	27th Warmest	Warmest since: 1938	1936
	Ties: 1913, 1980
Jun–Oct 1939 5-Month	70.5°F (21.4°C)	69.2°F (20.7°C)	1.3°F (0.7°C)	102nd Coolest	Coolest since: 1938	1917
	70.5°F (21.4°C)	69.2°F (20.7°C)	1.3°F (0.7°C)	27th Warmest	Warmest since: 1938	1936
	Ties: 1922, 1938
May–Oct 1939 6-Month	69.7°F (20.9°C)	68.2°F (20.1°C)	1.5°F (0.8°C)	105th Coolest	Coolest since: 1938	1917
May–Oct 1939 6-Month	69.7°F (20.9°C)	68.2°F (20.1°C)	1.5°F (0.8°C)	24th Warmest	Warmest since: 1936	1936
Apr–Oct 1939 7-Month	66.8°F (19.3°C)	66.0°F (18.9°C)	0.8°F (0.4°C)	89th Coolest	Coolest since: 1937	1907
	66.8°F (19.3°C)	66.0°F (18.9°C)	0.8°F (0.4°C)	40th Warmest	Warmest since: 1938	2010
	Ties: 1947, 1963, 1970, 1988
Mar–Oct 1939 8-Month	64.0°F (17.8°C)	63.0°F (17.2°C)	1.0°F (0.6°C)	98th Coolest	Coolest since: 1937	1917
	64.0°F (17.8°C)	63.0°F (17.2°C)	1.0°F (0.6°C)	31st Warmest	Warmest since: 1938	2012
	Ties: 1900, 2002
Feb–Oct 1939 9-Month	60.3°F (15.7°C)	59.4°F (15.2°C)	0.9°F (0.5°C)	93rd Coolest	Coolest since: 1937	1917
	60.3°F (15.7°C)	59.4°F (15.2°C)	0.9°F (0.5°C)	36th Warmest	Warmest since: 1938	2012
	Ties: 2019
Jan–Oct 1939 10-Month	57.8°F (14.3°C)	56.3°F (13.5°C)	1.5°F (0.8°C)	109th Coolest	Coolest since: 1937	1979
	57.8°F (14.3°C)	56.3°F (13.5°C)	1.5°F (0.8°C)	20th Warmest	Warmest since: 1938	2012
	Ties: 1911, 1946, 1955, 1973, 1987, 2000
Dec 1938–Oct 1939 11-Month	55.5°F (13.1°C)	54.1°F (12.3°C)	1.4°F (0.8°C)	104th Coolest	Coolest since: 1937	1904
	55.5°F (13.1°C)	54.1°F (12.3°C)	1.4°F (0.8°C)	24th Warmest	Warmest since: 1938	2012
	Ties: 1955, 1987, 2021
Nov 1938–Oct 1939 12-Month	54.5°F (12.5°C)	53.1°F (11.7°C)	1.4°F (0.8°C)	105th Coolest	Coolest since: 1938	1904
	54.5°F (12.5°C)	53.1°F (11.7°C)	1.4°F (0.8°C)	23rd Warmest	Warmest since: 1938	2012
	Ties: 1933, 1934, 1938, 1949, 2006
May 1938–Oct 1939 18-Month	59.4°F (15.2°C)	58.1°F (14.5°C)	1.3°F (0.7°C)	107th Coolest	Coolest since: 1938	1904
	59.4°F (15.2°C)	58.1°F (14.5°C)	1.3°F (0.7°C)	21st Warmest	Warmest since: 1935	2012
	Ties: 1919, 1931, 1935, 2022
Nov 1937–Oct 1939 24-Month	54.5°F (12.5°C)	53.1°F (11.7°C)	1.4°F (0.8°C)	109th Coolest	Coolest since: 1938	1979
	54.5°F (12.5°C)	53.1°F (11.7°C)	1.4°F (0.8°C)	18th Warmest	Warmest since: 1934	2017
	Ties: 1934, 2022
Nov 1936–Oct 1939 36-Month	53.8°F (12.1°C)	53.0°F (11.7°C)	0.8°F (0.4°C)	93rd Coolest	Coolest since: 1938	1979
	53.8°F (12.1°C)	53.0°F (11.7°C)	0.8°F (0.4°C)	33rd Warmest	Warmest since: 1935	2018
	Ties: 1987, 2009, 2014
Nov 1935–Oct 1939 48-Month	53.6°F (12.0°C)	53.0°F (11.7°C)	0.6°F (0.3°C)	83rd Coolest	Coolest since: 1938	1905, 1980
	53.6°F (12.0°C)	53.0°F (11.7°C)	0.6°F (0.3°C)	42nd Warmest	Warmest since: 1936	2019
	Ties: 1949, 1994
Nov 1934–Oct 1939 60-Month	53.6°F (12.0°C)	53.0°F (11.7°C)	0.6°F (0.3°C)	81st Coolest	Coolest since: 1938	1982
	53.6°F (12.0°C)	53.0°F (11.7°C)	0.6°F (0.3°C)	43rd Warmest	Warmest since: 1938	2020
	Ties: 1932, 1937, 1938, 1943, 1987, 1994

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings