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 1900

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1900 1-Month	62.5°F (16.9°C)	61.0°F (16.1°C)	1.5°F (0.8°C)	80th Coolest	Coolest since: 1899	1907
	62.5°F (16.9°C)	61.0°F (16.1°C)	1.5°F (0.8°C)	49th Warmest	Warmest since: 1896	2018
	Ties: 1895, 1926, 1930, 1950
Apr–May 1900 2-Month	56.6°F (13.7°C)	55.5°F (13.1°C)	1.1°F (0.6°C)	88th Coolest	Coolest since: 1898	1907
	56.6°F (13.7°C)	55.5°F (13.1°C)	1.1°F (0.6°C)	41st Warmest	Warmest since: 1899	1977
	Ties: 1903, 1915, 1925, 1969, 2013
Mar–May 1900 3-Month	47.9°F (8.8°C)	49.7°F (9.8°C)	-1.8°F (-1.0°C)	26th Coolest	Coolest since: 1897	1960
	47.9°F (8.8°C)	49.7°F (9.8°C)	-1.8°F (-1.0°C)	103rd Warmest	Warmest since: 1899	2012
	Ties: 1916
Feb–May 1900 4-Month	41.3°F (5.2°C)	44.2°F (6.8°C)	-2.9°F (-1.6°C)	12th Coolest	Coolest since: 1899	1978
	41.3°F (5.2°C)	44.2°F (6.8°C)	-2.9°F (-1.6°C)	117th Warmest	Warmest since: 1898	2012
	Ties: 1895
Jan–May 1900 5-Month	38.7°F (3.7°C)	40.1°F (4.5°C)	-1.4°F (-0.8°C)	28th Coolest	Coolest since: 1899	1978
	38.7°F (3.7°C)	40.1°F (4.5°C)	-1.4°F (-0.8°C)	101st Warmest	Warmest since: 1898	2012
	Ties: 1926, 1958, 1970, 1994
Dec 1899–May 1900 6-Month	36.6°F (2.6°C)	38.1°F (3.4°C)	-1.5°F (-0.8°C)	22nd Coolest	Coolest since: 1899	1978
	36.6°F (2.6°C)	38.1°F (3.4°C)	-1.5°F (-0.8°C)	106th Warmest	Warmest since: 1898	2012
	Ties: 1970
Nov 1899–May 1900 7-Month	37.3°F (2.9°C)	38.3°F (3.5°C)	-1.0°F (-0.6°C)	26th Coolest	Coolest since: 1899	1904
	37.3°F (2.9°C)	38.3°F (3.5°C)	-1.0°F (-0.6°C)	102nd Warmest	Warmest since: 1898	2012
	Ties: 1968, 2015
Oct 1899–May 1900 8-Month	39.8°F (4.3°C)	40.3°F (4.6°C)	-0.5°F (-0.3°C)	42nd Coolest	Coolest since: 1899	1904
	39.8°F (4.3°C)	40.3°F (4.6°C)	-0.5°F (-0.3°C)	86th Warmest	Warmest since: 1898	2012
	Ties: 1915, 1923, 1959, 2003
Sep 1899–May 1900 9-Month	42.4°F (5.8°C)	43.0°F (6.1°C)	-0.6°F (-0.3°C)	34th Coolest	Coolest since: 1899	1904
	42.4°F (5.8°C)	43.0°F (6.1°C)	-0.6°F (-0.3°C)	94th Warmest	Warmest since: 1898	2012
	Ties: 1969, 1980
Aug 1899–May 1900 10-Month	45.6°F (7.6°C)	45.9°F (7.7°C)	-0.3°F (-0.1°C)	44th Coolest	Coolest since: 1899	1904
	45.6°F (7.6°C)	45.9°F (7.7°C)	-0.3°F (-0.1°C)	84th Warmest	Warmest since: 1898	2012
	Ties: 1901, 1915, 1929, 1947, 1959, 1971
Jul 1899–May 1900 11-Month	48.1°F (8.9°C)	48.5°F (9.2°C)	-0.4°F (-0.3°C)	41st Coolest	Coolest since: 1899	1904
	48.1°F (8.9°C)	48.5°F (9.2°C)	-0.4°F (-0.3°C)	87th Warmest	Warmest since: 1898	2012
	Ties: 1901, 1925, 1930, 1965, 1966
Jun 1899–May 1900 12-Month	50.0°F (10.0°C)	50.3°F (10.2°C)	-0.3°F (-0.2°C)	52nd Coolest	Coolest since: 1899	1904
	50.0°F (10.0°C)	50.3°F (10.2°C)	-0.3°F (-0.2°C)	76th Warmest	Warmest since: 1898	2012
	Ties: 1911, 1928, 1947
Dec 1898–May 1900 18-Month	45.0°F (7.2°C)	46.3°F (7.9°C)	-1.3°F (-0.7°C)	13th Coolest	Coolest since: 1900	1905
	45.0°F (7.2°C)	46.3°F (7.9°C)	-1.3°F (-0.7°C)	114th Warmest	Warmest since: 1899	2017
	Ties: 1906, 1912, 1917, 1997
Jun 1898–May 1900 24-Month	49.2°F (9.6°C)	50.3°F (10.2°C)	-1.1°F (-0.6°C)	14th Coolest	Coolest since: 1900	1905
Jun 1898–May 1900 24-Month	49.2°F (9.6°C)	50.3°F (10.2°C)	-1.1°F (-0.6°C)	113th Warmest	Warmest since: 1899	2017
Jun 1897–May 1900 36-Month	49.8°F (9.9°C)	50.3°F (10.2°C)	-0.5°F (-0.3°C)	34th Coolest	Coolest since: 1899	1905, 1906
	49.8°F (9.9°C)	50.3°F (10.2°C)	-0.5°F (-0.3°C)	92nd Warmest	Warmest since: 1898	2018
	Ties: 1909, 1930, 1962, 1964, 1982, 1984
Jun 1896–May 1900 48-Month	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	20th Coolest	Coolest since: 1900	1905
	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	105th Warmest	Warmest since: 1899	2019
	Ties: 1927
Jun 1895–May 1900 60-Month	49.8°F (9.9°C)	50.2°F (10.1°C)	-0.4°F (-0.2°C)	29th Coolest	Coolest since: 1900	1905, 1906, 1908
	49.8°F (9.9°C)	50.2°F (10.1°C)	-0.4°F (-0.2°C)	95th Warmest	Warmest to Date	2020
	Ties: 1911, 1921, 1927, 1964, 1969, 1972, 1978, 1983

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings