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 1927

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1927 1-Month	58.9°F (14.9°C)	61.0°F (16.1°C)	-2.1°F (-1.2°C)	38th Coolest	Coolest since: 1925	1907
May 1927 1-Month	58.9°F (14.9°C)	61.0°F (16.1°C)	-2.1°F (-1.2°C)	91st Warmest	Warmest since: 1926	2018
Apr–May 1927 2-Month	54.5°F (12.5°C)	55.5°F (13.1°C)	-1.0°F (-0.6°C)	37th Coolest	Coolest since: 1926	1907
	54.5°F (12.5°C)	55.5°F (13.1°C)	-1.0°F (-0.6°C)	92nd Warmest	Warmest since: 1925	1977
	Ties: 1916, 1971
Mar–May 1927 3-Month	50.2°F (10.1°C)	49.7°F (9.8°C)	0.5°F (0.3°C)	73rd Coolest	Coolest since: 1926	1960
	50.2°F (10.1°C)	49.7°F (9.8°C)	0.5°F (0.3°C)	56th Warmest	Warmest since: 1925	2012
	Ties: 1992, 1994, 2018
Feb–May 1927 4-Month	46.5°F (8.1°C)	44.2°F (6.8°C)	2.3°F (1.3°C)	106th Coolest	Coolest since: 1926	1978
	46.5°F (8.1°C)	44.2°F (6.8°C)	2.3°F (1.3°C)	23rd Warmest	Warmest since: 1925	2012
	Ties: 1986, 1990
Jan–May 1927 5-Month	41.8°F (5.4°C)	40.1°F (4.5°C)	1.7°F (0.9°C)	98th Coolest	Coolest since: 1926	1978
	41.8°F (5.4°C)	40.1°F (4.5°C)	1.7°F (0.9°C)	31st Warmest	Warmest since: 1921	2012
	Ties: 1949, 2007
Dec 1926–May 1927 6-Month	39.1°F (3.9°C)	38.1°F (3.4°C)	1.0°F (0.5°C)	84th Coolest	Coolest since: 1926	1904, 1978
	39.1°F (3.9°C)	38.1°F (3.4°C)	1.0°F (0.5°C)	44th Warmest	Warmest since: 1922	2012
	Ties: 1930, 1944
Nov 1926–May 1927 7-Month	38.6°F (3.7°C)	38.3°F (3.5°C)	0.3°F (0.2°C)	72nd Coolest	Coolest since: 1926	1904
	38.6°F (3.7°C)	38.3°F (3.5°C)	0.3°F (0.2°C)	56th Warmest	Warmest since: 1925	2012
	Ties: 1908, 1925, 1944, 1964, 1967
Oct 1926–May 1927 8-Month	40.2°F (4.6°C)	40.2°F (4.6°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1926	1904
	40.2°F (4.6°C)	40.2°F (4.6°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1925	2012
	Ties: 1913, 2009, 2019
Sep 1926–May 1927 9-Month	42.9°F (6.1°C)	43.0°F (6.1°C)	-0.1°F (0.0°C)	52nd Coolest	Coolest since: 1926	1904
	42.9°F (6.1°C)	43.0°F (6.1°C)	-0.1°F (0.0°C)	76th Warmest	Warmest since: 1925	2012
	Ties: 1937, 1956, 1993
Aug 1926–May 1927 10-Month	46.0°F (7.8°C)	45.9°F (7.7°C)	0.1°F (0.1°C)	61st Coolest	Coolest since: 1926	1904
	46.0°F (7.8°C)	45.9°F (7.7°C)	0.1°F (0.1°C)	67th Warmest	Warmest since: 1922	2012
	Ties: 2003
Jul 1926–May 1927 11-Month	48.6°F (9.2°C)	48.5°F (9.2°C)	0.1°F (0.0°C)	62nd Coolest	Coolest since: 1926	1904
	48.6°F (9.2°C)	48.5°F (9.2°C)	0.1°F (0.0°C)	66th Warmest	Warmest since: 1922	2012
	Ties: 1928
Jun 1926–May 1927 12-Month	50.1°F (10.1°C)	50.3°F (10.2°C)	-0.2°F (-0.1°C)	56th Coolest	Coolest since: 1926	1904
	50.1°F (10.1°C)	50.3°F (10.2°C)	-0.2°F (-0.1°C)	72nd Warmest	Warmest since: 1923	2012
	Ties: 1965, 1967
Dec 1925–May 1927 18-Month	45.5°F (7.5°C)	46.2°F (7.9°C)	-0.7°F (-0.4°C)	29th Coolest	Coolest since: 1926	1905
	45.5°F (7.5°C)	46.2°F (7.9°C)	-0.7°F (-0.4°C)	98th Warmest	Warmest since: 1926	2017
	Ties: 1925, 1926, 1971, 2014
Jun 1925–May 1927 24-Month	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	27th Coolest	Coolest since: 1926	1905
	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	100th Warmest	Warmest since: 1925	2017
	Ties: 1930, 1959
Jun 1924–May 1927 36-Month	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	19th Coolest	Coolest since: 1926	1905, 1906
	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	107th Warmest	Warmest since: 1925	2018
	Ties: 1902, 1903, 1908, 1960, 1968, 1969, 1971
Jun 1923–May 1927 48-Month	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	20th Coolest	Coolest since: 1920	1905
	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	105th Warmest	Warmest since: 1926	2019
	Ties: 1900
Jun 1922–May 1927 60-Month	49.8°F (9.9°C)	50.3°F (10.2°C)	-0.5°F (-0.3°C)	29th Coolest	Coolest since: 1921	1905, 1906, 1908
	49.8°F (9.9°C)	50.3°F (10.2°C)	-0.5°F (-0.3°C)	95th Warmest	Warmest since: 1926	2020
	Ties: 1900, 1911, 1921, 1964, 1969, 1972, 1978, 1983

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings