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 1971

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1971 1-Month	58.6°F (14.8°C)	61.0°F (16.1°C)	-2.4°F (-1.3°C)	34th Coolest	Coolest since: 1968	1907
	58.6°F (14.8°C)	61.0°F (16.1°C)	-2.4°F (-1.3°C)	95th Warmest	Warmest since: 1970	2018
	Ties: 1948
Apr–May 1971 2-Month	54.4°F (12.4°C)	55.4°F (13.0°C)	-1.0°F (-0.6°C)	35th Coolest	Coolest since: 1968	1907
	54.4°F (12.4°C)	55.4°F (13.0°C)	-1.0°F (-0.6°C)	94th Warmest	Warmest since: 1970	1977
	Ties: 1916, 1927, 1967, 2008
Mar–May 1971 3-Month	48.1°F (8.9°C)	49.7°F (9.8°C)	-1.6°F (-0.9°C)	29th Coolest	Coolest since: 1966	1960
	48.1°F (8.9°C)	49.7°F (9.8°C)	-1.6°F (-0.9°C)	100th Warmest	Warmest since: 1970	2012
	Ties: 1928
Feb–May 1971 4-Month	43.2°F (6.2°C)	44.2°F (6.8°C)	-1.0°F (-0.6°C)	41st Coolest	Coolest since: 1967	1978
	43.2°F (6.2°C)	44.2°F (6.8°C)	-1.0°F (-0.6°C)	88th Warmest	Warmest since: 1970	2012
	Ties: 1909, 1963, 1975, 1993
Jan–May 1971 5-Month	38.5°F (3.6°C)	40.1°F (4.5°C)	-1.6°F (-0.9°C)	26th Coolest	Coolest since: 1966	1978
Jan–May 1971 5-Month	38.5°F (3.6°C)	40.1°F (4.5°C)	-1.6°F (-0.9°C)	103rd Warmest	Warmest since: 1970	2012
Dec 1970–May 1971 6-Month	37.3°F (2.9°C)	38.1°F (3.4°C)	-0.8°F (-0.5°C)	36th Coolest	Coolest since: 1970	1978
	37.3°F (2.9°C)	38.1°F (3.4°C)	-0.8°F (-0.5°C)	92nd Warmest	Warmest since: 1969	2012
	Ties: 1897, 1980
Nov 1970–May 1971 7-Month	37.5°F (3.1°C)	38.3°F (3.5°C)	-0.8°F (-0.4°C)	31st Coolest	Coolest since: 1970	1904
	37.5°F (3.1°C)	38.3°F (3.5°C)	-0.8°F (-0.4°C)	97th Warmest	Warmest since: 1969	2012
	Ties: 1897, 1915, 1923, 1961, 1994
Oct 1970–May 1971 8-Month	39.6°F (4.2°C)	40.3°F (4.6°C)	-0.7°F (-0.4°C)	35th Coolest	Coolest since: 1970	1904
	39.6°F (4.2°C)	40.3°F (4.6°C)	-0.7°F (-0.4°C)	93rd Warmest	Warmest since: 1969	2012
	Ties: 1906, 1962, 1980
Sep 1970–May 1971 9-Month	42.6°F (5.9°C)	42.9°F (6.1°C)	-0.3°F (-0.2°C)	40th Coolest	Coolest since: 1970	1904
	42.6°F (5.9°C)	42.9°F (6.1°C)	-0.3°F (-0.2°C)	88th Warmest	Warmest since: 1967	2012
	Ties: 1908, 1916, 1944, 1959, 1967
Aug 1970–May 1971 10-Month	45.6°F (7.6°C)	45.9°F (7.7°C)	-0.3°F (-0.1°C)	44th Coolest	Coolest since: 1970	1904
	45.6°F (7.6°C)	45.9°F (7.7°C)	-0.3°F (-0.1°C)	84th Warmest	Warmest since: 1966	2012
	Ties: 1900, 1901, 1915, 1929, 1947, 1959
Jul 1970–May 1971 11-Month	48.2°F (9.0°C)	48.5°F (9.2°C)	-0.3°F (-0.2°C)	47th Coolest	Coolest since: 1970	1904
	48.2°F (9.0°C)	48.5°F (9.2°C)	-0.3°F (-0.2°C)	81st Warmest	Warmest since: 1967	2012
	Ties: 1903, 1929, 1947, 1962, 1967
Jun 1970–May 1971 12-Month	49.9°F (9.9°C)	50.3°F (10.2°C)	-0.4°F (-0.3°C)	45th Coolest	Coolest since: 1970	1904
	49.9°F (9.9°C)	50.3°F (10.2°C)	-0.4°F (-0.3°C)	83rd Warmest	Warmest since: 1969	2012
	Ties: 1913, 1961, 1962, 1966, 1969, 1984
Dec 1969–May 1971 18-Month	45.5°F (7.5°C)	46.2°F (7.9°C)	-0.7°F (-0.4°C)	29th Coolest	Coolest since: 1970	1905
	45.5°F (7.5°C)	46.2°F (7.9°C)	-0.7°F (-0.4°C)	98th Warmest	Warmest since: 1969	2017
	Ties: 1925, 1926, 1927, 2014
Jun 1969–May 1971 24-Month	49.4°F (9.7°C)	50.3°F (10.2°C)	-0.9°F (-0.5°C)	16th Coolest	Coolest since: 1970	1905
	49.4°F (9.7°C)	50.3°F (10.2°C)	-0.9°F (-0.5°C)	111th Warmest	Warmest since: 1970	2017
	Ties: 1902, 1926, 1968, 1969, 1970, 1994
Jun 1968–May 1971 36-Month	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	19th Coolest	Coolest since: 1970	1905, 1906
	49.6°F (9.8°C)	50.3°F (10.2°C)	-0.7°F (-0.4°C)	107th Warmest	Warmest since: 1969	2018
	Ties: 1902, 1903, 1908, 1927, 1960, 1968, 1969
Jun 1967–May 1971 48-Month	49.4°F (9.7°C)	50.3°F (10.2°C)	-0.9°F (-0.5°C)	14th Coolest	Coolest since: 1970	1905
	49.4°F (9.7°C)	50.3°F (10.2°C)	-0.9°F (-0.5°C)	111th Warmest	Warmest since: 1970	2019
	Ties: 1912, 1970, 1978
Jun 1966–May 1971 60-Month	49.5°F (9.7°C)	50.2°F (10.1°C)	-0.7°F (-0.4°C)	16th Coolest	Coolest since: 1970	1905, 1906, 1908
	49.5°F (9.7°C)	50.2°F (10.1°C)	-0.7°F (-0.4°C)	108th Warmest	Warmest since: 1970	2020
	Ties: 1913, 1963, 1970

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings