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 2. Northeast

Average Temperature Rankings, May 1939

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1939 1-Month	62.7°F (17.1°C)	58.9°F (14.9°C)	3.8°F (2.2°C)	108th Coolest	Coolest since: 1938	1907
	62.7°F (17.1°C)	58.9°F (14.9°C)	3.8°F (2.2°C)	21st Warmest	Warmest since: 1936	1977
	Ties: 1975
Apr–May 1939 2-Month	53.6°F (12.0°C)	53.4°F (11.9°C)	0.2°F (0.1°C)	68th Coolest	Coolest since: 1937	1907
	53.6°F (12.0°C)	53.4°F (11.9°C)	0.2°F (0.1°C)	61st Warmest	Warmest since: 1938	1896, 1977
	Ties: 1936, 1974, 2009
Mar–May 1939 3-Month	48.0°F (8.9°C)	47.5°F (8.6°C)	0.5°F (0.3°C)	71st Coolest	Coolest since: 1937	1926
Mar–May 1939 3-Month	48.0°F (8.9°C)	47.5°F (8.6°C)	0.5°F (0.3°C)	58th Warmest	Warmest since: 1938	2012
Feb–May 1939 4-Month	42.0°F (5.6°C)	41.9°F (5.5°C)	0.1°F (0.1°C)	67th Coolest	Coolest since: 1937	1904, 1947
	42.0°F (5.6°C)	41.9°F (5.5°C)	0.1°F (0.1°C)	62nd Warmest	Warmest since: 1938	2012
	Ties: 1949, 1961, 1962, 1970
Jan–May 1939 5-Month	39.3°F (4.1°C)	37.8°F (3.2°C)	1.5°F (0.9°C)	94th Coolest	Coolest since: 1937	1912
Jan–May 1939 5-Month	39.3°F (4.1°C)	37.8°F (3.2°C)	1.5°F (0.9°C)	35th Warmest	Warmest since: 1938	2012
Dec 1938–May 1939 6-Month	37.2°F (2.9°C)	35.8°F (2.1°C)	1.4°F (0.8°C)	92nd Coolest	Coolest since: 1937	1904
	37.2°F (2.9°C)	35.8°F (2.1°C)	1.4°F (0.8°C)	36th Warmest	Warmest since: 1938	2012
	Ties: 1941, 2013
Nov 1938–May 1939 7-Month	37.7°F (3.2°C)	36.1°F (2.3°C)	1.6°F (0.9°C)	98th Coolest	Coolest since: 1938	1904
	37.7°F (3.2°C)	36.1°F (2.3°C)	1.6°F (0.9°C)	30th Warmest	Warmest since: 1932	2012
	Ties: 2022
Oct 1938–May 1939 8-Month	39.9°F (4.4°C)	38.1°F (3.4°C)	1.8°F (1.0°C)	101st Coolest	Coolest since: 1938	1904
	39.9°F (4.4°C)	38.1°F (3.4°C)	1.8°F (1.0°C)	27th Warmest	Warmest since: 1932	2012
	Ties: 2020
Sep 1938–May 1939 9-Month	42.6°F (5.9°C)	41.0°F (5.0°C)	1.6°F (0.9°C)	102nd Coolest	Coolest since: 1938	1904
	42.6°F (5.9°C)	41.0°F (5.0°C)	1.6°F (0.9°C)	26th Warmest	Warmest since: 1932	2012
	Ties: 1992
Aug 1938–May 1939 10-Month	45.7°F (7.6°C)	44.0°F (6.7°C)	1.7°F (0.9°C)	109th Coolest	Coolest since: 1938	1904
	45.7°F (7.6°C)	44.0°F (6.7°C)	1.7°F (0.9°C)	19th Warmest	Warmest since: 1932	2012
	Ties: 1976, 1992
Jul 1938–May 1939 11-Month	48.2°F (9.0°C)	46.6°F (8.1°C)	1.6°F (0.9°C)	108th Coolest	Coolest since: 1938	1904
	48.2°F (9.0°C)	46.6°F (8.1°C)	1.6°F (0.9°C)	20th Warmest	Warmest since: 1932	2012
	Ties: 1922, 2007
Jun 1938–May 1939 12-Month	49.7°F (9.8°C)	48.4°F (9.1°C)	1.3°F (0.7°C)	102nd Coolest	Coolest since: 1938	1904
	49.7°F (9.8°C)	48.4°F (9.1°C)	1.3°F (0.7°C)	26th Warmest	Warmest since: 1934	2012
	Ties: 1934, 1964, 1985, 2005
Dec 1937–May 1939 18-Month	45.8°F (7.7°C)	44.2°F (6.8°C)	1.6°F (0.9°C)	105th Coolest	Coolest since: 1938	1905, 1918
	45.8°F (7.7°C)	44.2°F (6.8°C)	1.6°F (0.9°C)	22nd Warmest	Warmest since: 1932	2017
	Ties: 2002, 2003
Jun 1937–May 1939 24-Month	49.4°F (9.7°C)	48.5°F (9.2°C)	0.9°F (0.5°C)	97th Coolest	Coolest since: 1938	1905
	49.4°F (9.7°C)	48.5°F (9.2°C)	0.9°F (0.5°C)	30th Warmest	Warmest since: 1935	2017
	Ties: 1923, 1956, 1989
Jun 1936–May 1939 36-Month	49.2°F (9.6°C)	48.4°F (9.1°C)	0.8°F (0.5°C)	89th Coolest	Coolest since: 1938	1918
	49.2°F (9.6°C)	48.4°F (9.1°C)	0.8°F (0.5°C)	37th Warmest	Warmest since: 1935	2000
	Ties: 1935, 1942
Jun 1935–May 1939 48-Month	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	57th Coolest	Coolest since: 1938	1907
	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	68th Warmest	Warmest since: 1937	2001
	Ties: 1901, 1936, 1947, 1949, 1967, 1984
Jun 1934–May 1939 60-Month	48.7°F (9.3°C)	48.4°F (9.1°C)	0.3°F (0.2°C)	72nd Coolest	Coolest since: 1938	1908
	48.7°F (9.3°C)	48.4°F (9.1°C)	0.3°F (0.2°C)	52nd Warmest	Warmest since: 1938	2002
	Ties: 1938, 1944, 1946, 1975, 1977, 1985, 1998

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published February 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings