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 1930

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1930 1-Month	62.5°F (16.9°C)	61.0°F (16.1°C)	1.5°F (0.8°C)	80th Coolest	Coolest since: 1929	1907
	62.5°F (16.9°C)	61.0°F (16.1°C)	1.5°F (0.8°C)	49th Warmest	Warmest since: 1926	2018
	Ties: 1895, 1900, 1926, 1950
Apr–May 1930 2-Month	57.5°F (14.2°C)	55.4°F (13.0°C)	2.1°F (1.2°C)	101st Coolest	Coolest since: 1929	1907
Apr–May 1930 2-Month	57.5°F (14.2°C)	55.4°F (13.0°C)	2.1°F (1.2°C)	28th Warmest	Warmest since: 1922	1977
Mar–May 1930 3-Month	50.7°F (10.4°C)	49.7°F (9.8°C)	1.0°F (0.6°C)	84th Coolest	Coolest since: 1928	1960
	50.7°F (10.4°C)	49.7°F (9.8°C)	1.0°F (0.6°C)	45th Warmest	Warmest since: 1929	2012
	Ties: 1908
Feb–May 1930 4-Month	47.4°F (8.6°C)	44.2°F (6.8°C)	3.2°F (1.8°C)	115th Coolest	Coolest since: 1929	1978
Feb–May 1930 4-Month	47.4°F (8.6°C)	44.2°F (6.8°C)	3.2°F (1.8°C)	14th Warmest	Warmest since: 1921	2012
Jan–May 1930 5-Month	41.6°F (5.3°C)	40.1°F (4.5°C)	1.5°F (0.8°C)	94th Coolest	Coolest since: 1929	1978
	41.6°F (5.3°C)	40.1°F (4.5°C)	1.5°F (0.8°C)	35th Warmest	Warmest since: 1927	2012
	Ties: 1925, 1931, 1939, 1944, 2010
Dec 1929–May 1930 6-Month	39.1°F (3.9°C)	38.1°F (3.4°C)	1.0°F (0.5°C)	84th Coolest	Coolest since: 1929	1978
	39.1°F (3.9°C)	38.1°F (3.4°C)	1.0°F (0.5°C)	44th Warmest	Warmest since: 1927	2012
	Ties: 1927, 1944
Nov 1929–May 1930 7-Month	38.5°F (3.6°C)	38.4°F (3.6°C)	0.1°F (0.0°C)	60th Coolest	Coolest since: 1929	1904
	38.5°F (3.6°C)	38.4°F (3.6°C)	0.1°F (0.0°C)	68th Warmest	Warmest since: 1928	2012
	Ties: 1909, 1928, 1945, 1965, 1966, 1993
Oct 1929–May 1930 8-Month	40.0°F (4.4°C)	40.2°F (4.6°C)	-0.2°F (-0.2°C)	49th Coolest	Coolest since: 1926	1904
	40.0°F (4.4°C)	40.2°F (4.6°C)	-0.2°F (-0.2°C)	79th Warmest	Warmest since: 1929	2012
	Ties: 1908, 1989
Sep 1929–May 1930 9-Month	42.7°F (5.9°C)	43.0°F (6.1°C)	-0.3°F (-0.2°C)	46th Coolest	Coolest since: 1929	1904
	42.7°F (5.9°C)	43.0°F (6.1°C)	-0.3°F (-0.2°C)	82nd Warmest	Warmest since: 1928	2012
	Ties: 1952, 1965, 1975
Aug 1929–May 1930 10-Month	45.4°F (7.4°C)	45.9°F (7.7°C)	-0.5°F (-0.3°C)	37th Coolest	Coolest since: 1926	1904
	45.4°F (7.4°C)	45.9°F (7.7°C)	-0.5°F (-0.3°C)	91st Warmest	Warmest since: 1929	2012
	Ties: 1952, 1969
Jul 1929–May 1930 11-Month	48.1°F (8.9°C)	48.5°F (9.2°C)	-0.4°F (-0.3°C)	41st Coolest	Coolest since: 1926	1904
	48.1°F (8.9°C)	48.5°F (9.2°C)	-0.4°F (-0.3°C)	87th Warmest	Warmest since: 1929	2012
	Ties: 1900, 1901, 1925, 1965, 1966
Jun 1929–May 1930 12-Month	49.7°F (9.8°C)	50.4°F (10.2°C)	-0.7°F (-0.4°C)	34th Coolest	Coolest since: 1929	1904
	49.7°F (9.8°C)	50.4°F (10.2°C)	-0.7°F (-0.4°C)	94th Warmest	Warmest since: 1928	2012
	Ties: 1907, 1960, 1980
Dec 1928–May 1930 18-Month	45.7°F (7.6°C)	46.2°F (7.9°C)	-0.5°F (-0.3°C)	42nd Coolest	Coolest since: 1929	1905
	45.7°F (7.6°C)	46.2°F (7.9°C)	-0.5°F (-0.3°C)	85th Warmest	Warmest since: 1928	2017
	Ties: 1919, 1937, 1994
Jun 1928–May 1930 24-Month	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	27th Coolest	Coolest since: 1927	1905
	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	100th Warmest	Warmest since: 1929	2017
	Ties: 1927, 1959
Jun 1927–May 1930 36-Month	49.8°F (9.9°C)	50.3°F (10.2°C)	-0.5°F (-0.3°C)	34th Coolest	Coolest since: 1928	1905, 1906
	49.8°F (9.9°C)	50.3°F (10.2°C)	-0.5°F (-0.3°C)	92nd Warmest	Warmest since: 1929	2018
	Ties: 1900, 1909, 1962, 1964, 1982, 1984
Jun 1926–May 1930 48-Month	49.8°F (9.9°C)	50.2°F (10.1°C)	-0.4°F (-0.2°C)	31st Coolest	Coolest since: 1929	1905
	49.8°F (9.9°C)	50.2°F (10.1°C)	-0.4°F (-0.2°C)	94th Warmest	Warmest since: 1925	2019
	Ties: 1899, 1901, 1909, 1911, 1914, 1964
Jun 1925–May 1930 60-Month	49.7°F (9.8°C)	50.3°F (10.2°C)	-0.6°F (-0.4°C)	22nd Coolest	Coolest since: 1929	1905, 1906, 1908
	49.7°F (9.8°C)	50.3°F (10.2°C)	-0.6°F (-0.4°C)	102nd Warmest	Warmest since: 1929	2020
	Ties: 1910, 1914, 1916, 1928, 1929, 1962

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings