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 5. East

Average Temperature Rankings, May 1950

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1950 1-Month	62.5°F (16.9°C)	61.0°F (16.1°C)	1.5°F (0.8°C)	80th Coolest	Coolest since: 1948	1907
	62.5°F (16.9°C)	61.0°F (16.1°C)	1.5°F (0.8°C)	49th Warmest	Warmest since: 1949	2018
	Ties: 1895, 1900, 1926, 1930
Apr–May 1950 2-Month	53.1°F (11.7°C)	55.4°F (13.0°C)	-2.3°F (-1.3°C)	18th Coolest	Coolest since: 1947	1907
Apr–May 1950 2-Month	53.1°F (11.7°C)	55.4°F (13.0°C)	-2.3°F (-1.3°C)	111th Warmest	Warmest since: 1949	1977
Mar–May 1950 3-Month	46.8°F (8.2°C)	49.7°F (9.8°C)	-2.9°F (-1.6°C)	9th Coolest	Coolest since: 1947	1960
	46.8°F (8.2°C)	49.7°F (9.8°C)	-2.9°F (-1.6°C)	120th Warmest	Warmest since: 1949	2012
	Ties: 1904
Feb–May 1950 4-Month	41.8°F (5.4°C)	44.2°F (6.8°C)	-2.4°F (-1.4°C)	19th Coolest	Coolest since: 1947	1978
	41.8°F (5.4°C)	44.2°F (6.8°C)	-2.4°F (-1.4°C)	110th Warmest	Warmest since: 1949	2012
	Ties: 1936
Jan–May 1950 5-Month	39.7°F (4.3°C)	40.1°F (4.5°C)	-0.4°F (-0.2°C)	50th Coolest	Coolest since: 1948	1978
	39.7°F (4.3°C)	40.1°F (4.5°C)	-0.4°F (-0.2°C)	79th Warmest	Warmest since: 1949	2012
	Ties: 1951
Dec 1949–May 1950 6-Month	38.6°F (3.7°C)	38.1°F (3.4°C)	0.5°F (0.3°C)	71st Coolest	Coolest since: 1948	1978
	38.6°F (3.7°C)	38.1°F (3.4°C)	0.5°F (0.3°C)	57th Warmest	Warmest since: 1949	2012
	Ties: 1989, 2018
Nov 1949–May 1950 7-Month	39.0°F (3.9°C)	38.4°F (3.6°C)	0.6°F (0.3°C)	81st Coolest	Coolest since: 1948	1904
	39.0°F (3.9°C)	38.4°F (3.6°C)	0.6°F (0.3°C)	47th Warmest	Warmest since: 1949	2012
	Ties: 1934, 1981, 1989
Oct 1949–May 1950 8-Month	41.2°F (5.1°C)	40.2°F (4.6°C)	1.0°F (0.5°C)	88th Coolest	Coolest since: 1948	1904
	41.2°F (5.1°C)	40.2°F (4.6°C)	1.0°F (0.5°C)	40th Warmest	Warmest since: 1949	2012
	Ties: 1946, 1986, 2018
Sep 1949–May 1950 9-Month	43.2°F (6.2°C)	42.9°F (6.1°C)	0.3°F (0.1°C)	70th Coolest	Coolest since: 1947	1904
	43.2°F (6.2°C)	42.9°F (6.1°C)	0.3°F (0.1°C)	58th Warmest	Warmest since: 1949	2012
	Ties: 1933
Aug 1949–May 1950 10-Month	46.2°F (7.9°C)	45.9°F (7.7°C)	0.3°F (0.2°C)	68th Coolest	Coolest since: 1947	1904
	46.2°F (7.9°C)	45.9°F (7.7°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 1949	2012
	Ties: 1928, 1933
Jul 1949–May 1950 11-Month	49.0°F (9.4°C)	48.5°F (9.2°C)	0.5°F (0.2°C)	75th Coolest	Coolest since: 1947	1904
	49.0°F (9.4°C)	48.5°F (9.2°C)	0.5°F (0.2°C)	53rd Warmest	Warmest since: 1949	2012
	Ties: 1946, 2019
Jun 1949–May 1950 12-Month	51.0°F (10.6°C)	50.3°F (10.2°C)	0.7°F (0.4°C)	82nd Coolest	Coolest since: 1948	1904
	51.0°F (10.6°C)	50.3°F (10.2°C)	0.7°F (0.4°C)	46th Warmest	Warmest since: 1949	2012
	Ties: 1919, 1981
Dec 1948–May 1950 18-Month	47.4°F (8.6°C)	46.3°F (7.9°C)	1.1°F (0.7°C)	95th Coolest	Coolest since: 1949	1905
	47.4°F (8.6°C)	46.3°F (7.9°C)	1.1°F (0.7°C)	32nd Warmest	Warmest since: 1942	2017
	Ties: 1976, 1998
Jun 1948–May 1950 24-Month	51.3°F (10.7°C)	50.3°F (10.2°C)	1.0°F (0.5°C)	98th Coolest	Coolest since: 1949	1905
	51.3°F (10.7°C)	50.3°F (10.2°C)	1.0°F (0.5°C)	29th Warmest	Warmest since: 1942	2017
	Ties: 1939, 2002, 2004
Jun 1947–May 1950 36-Month	51.1°F (10.6°C)	50.3°F (10.2°C)	0.8°F (0.4°C)	88th Coolest	Coolest since: 1949	1905, 1906
	51.1°F (10.6°C)	50.3°F (10.2°C)	0.8°F (0.4°C)	38th Warmest	Warmest since: 1939	2018
	Ties: 1976, 1990, 2009
Jun 1946–May 1950 48-Month	50.8°F (10.4°C)	50.2°F (10.1°C)	0.6°F (0.3°C)	76th Coolest	Coolest since: 1949	1905
	50.8°F (10.4°C)	50.2°F (10.1°C)	0.6°F (0.3°C)	49th Warmest	Warmest since: 1944	2019
	Ties: 1975, 1986, 1998
Jun 1945–May 1950 60-Month	50.7°F (10.4°C)	50.2°F (10.1°C)	0.5°F (0.3°C)	70th Coolest	Coolest since: 1949	1905, 1906, 1908
	50.7°F (10.4°C)	50.2°F (10.1°C)	0.5°F (0.3°C)	54th Warmest	Warmest since: 1949	2020
	Ties: 1946, 1949, 1954, 1959, 1975

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings