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 1959

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Record Coolest

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1959 1-Month	64.2°F (17.9°C)	59.0°F (15.0°C)	5.2°F (2.9°C)	117th Coolest	Coolest since: 1958	1907
	64.2°F (17.9°C)	59.0°F (15.0°C)	5.2°F (2.9°C)	12th Warmest	Warmest since: 1934	1977
	Ties: 2007
Apr–May 1959 2-Month	56.0°F (13.3°C)	53.4°F (11.9°C)	2.6°F (1.4°C)	110th Coolest	Coolest since: 1958	1907
	56.0°F (13.3°C)	53.4°F (11.9°C)	2.6°F (1.4°C)	19th Warmest	Warmest since: 1955	1977
	Ties: 2015
Mar–May 1959 3-Month	49.1°F (9.5°C)	47.5°F (8.6°C)	1.6°F (0.9°C)	96th Coolest	Coolest since: 1958	1926
	49.1°F (9.5°C)	47.5°F (8.6°C)	1.6°F (0.9°C)	33rd Warmest	Warmest since: 1955	2012
	Ties: 1911, 1963, 1976
Feb–May 1959 4-Month	42.6°F (5.9°C)	41.9°F (5.5°C)	0.7°F (0.4°C)	83rd Coolest	Coolest since: 1958	1904
	42.6°F (5.9°C)	41.9°F (5.5°C)	0.7°F (0.4°C)	46th Warmest	Warmest since: 1957	2012
	Ties: 2002, 2007
Jan–May 1959 5-Month	37.1°F (2.8°C)	37.7°F (3.2°C)	-0.6°F (-0.4°C)	48th Coolest	Coolest since: 1958	1912
	37.1°F (2.8°C)	37.7°F (3.2°C)	-0.6°F (-0.4°C)	81st Warmest	Warmest since: 1957	2012
	Ties: 1913
Dec 1958–May 1959 6-Month	34.2°F (1.2°C)	35.8°F (2.1°C)	-1.6°F (-0.9°C)	21st Coolest	Coolest since: 1951	1904
	34.2°F (1.2°C)	35.8°F (2.1°C)	-1.6°F (-0.9°C)	107th Warmest	Warmest since: 1958	2012
	Ties: 1923
Nov 1958–May 1959 7-Month	35.0°F (1.7°C)	36.1°F (2.3°C)	-1.1°F (-0.6°C)	28th Coolest	Coolest since: 1951	1904
	35.0°F (1.7°C)	36.1°F (2.3°C)	-1.1°F (-0.6°C)	100th Warmest	Warmest since: 1958	2012
	Ties: 1947, 1971, 2015
Oct 1958–May 1959 8-Month	37.5°F (3.1°C)	38.1°F (3.4°C)	-0.6°F (-0.3°C)	36th Coolest	Coolest since: 1958	1904
	37.5°F (3.1°C)	38.1°F (3.4°C)	-0.6°F (-0.3°C)	92nd Warmest	Warmest since: 1958	2012
	Ties: 1923, 1929, 1956, 1958, 2019
Sep 1958–May 1959 9-Month	40.4°F (4.7°C)	41.0°F (5.0°C)	-0.6°F (-0.3°C)	35th Coolest	Coolest since: 1958	1904
	40.4°F (4.7°C)	41.0°F (5.0°C)	-0.6°F (-0.3°C)	93rd Warmest	Warmest since: 1957	2012
	Ties: 1950, 1962, 1967
Aug 1958–May 1959 10-Month	43.5°F (6.4°C)	44.0°F (6.7°C)	-0.5°F (-0.3°C)	40th Coolest	Coolest since: 1958	1904
	43.5°F (6.4°C)	44.0°F (6.7°C)	-0.5°F (-0.3°C)	88th Warmest	Warmest since: 1957	2012
	Ties: 1962, 1971
Jul 1958–May 1959 11-Month	46.0°F (7.8°C)	46.6°F (8.1°C)	-0.6°F (-0.3°C)	32nd Coolest	Coolest since: 1958	1904
	46.0°F (7.8°C)	46.6°F (8.1°C)	-0.6°F (-0.3°C)	96th Warmest	Warmest since: 1958	2012
	Ties: 1925, 1940, 1958, 1965
Jun 1958–May 1959 12-Month	47.4°F (8.6°C)	48.5°F (9.2°C)	-1.1°F (-0.6°C)	23rd Coolest	Coolest since: 1952	1904
	47.4°F (8.6°C)	48.5°F (9.2°C)	-1.1°F (-0.6°C)	105th Warmest	Warmest since: 1958	2012
	Ties: 1993
Dec 1957–May 1959 18-Month	43.5°F (6.4°C)	44.2°F (6.8°C)	-0.7°F (-0.4°C)	27th Coolest	Coolest since: 1952	1905, 1918
	43.5°F (6.4°C)	44.2°F (6.8°C)	-0.7°F (-0.4°C)	100th Warmest	Warmest since: 1958	2017
	Ties: 1899, 1929, 1968, 1971
Jun 1957–May 1959 24-Month	47.7°F (8.7°C)	48.5°F (9.2°C)	-0.8°F (-0.5°C)	22nd Coolest	Coolest since: 1952	1905
	47.7°F (8.7°C)	48.5°F (9.2°C)	-0.8°F (-0.5°C)	105th Warmest	Warmest since: 1958	2017
	Ties: 1937, 1960
Jun 1956–May 1959 36-Month	48.2°F (9.0°C)	48.4°F (9.1°C)	-0.2°F (-0.1°C)	42nd Coolest	Coolest since: 1953	1918
	48.2°F (9.0°C)	48.4°F (9.1°C)	-0.2°F (-0.1°C)	84th Warmest	Warmest since: 1958	2000
	Ties: 1901, 1909, 1937, 1948, 1964, 1965, 1995, 1997
Jun 1955–May 1959 48-Month	48.3°F (9.1°C)	48.4°F (9.1°C)	-0.1°F (0.0°C)	45th Coolest	Coolest since: 1953	1907
	48.3°F (9.1°C)	48.4°F (9.1°C)	-0.1°F (0.0°C)	80th Warmest	Warmest since: 1958	2001
	Ties: 1900, 1902, 1909, 1916, 1921, 1946
Jun 1954–May 1959 60-Month	48.6°F (9.2°C)	48.4°F (9.1°C)	0.2°F (0.1°C)	60th Coolest	Coolest since: 1954	1908
	48.6°F (9.2°C)	48.4°F (9.1°C)	0.2°F (0.1°C)	64th Warmest	Warmest since: 1958	2002
	Ties: 1937, 1949, 1986, 1996

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings