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 1917

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1917 1-Month	54.4°F (12.4°C)	61.0°F (16.1°C)	-6.6°F (-3.7°C)	2nd Coolest	Coolest since: 1907	1907
May 1917 1-Month	54.4°F (12.4°C)	61.0°F (16.1°C)	-6.6°F (-3.7°C)	127th Warmest	Warmest since: 1916	2018
Apr–May 1917 2-Month	50.7°F (10.4°C)	55.4°F (13.0°C)	-4.7°F (-2.6°C)	2nd Coolest	Coolest since: 1907	1907
	50.7°F (10.4°C)	55.4°F (13.0°C)	-4.7°F (-2.6°C)	127th Warmest	Warmest since: 1916	1977
	Ties: 1961
Mar–May 1917 3-Month	47.0°F (8.3°C)	49.7°F (9.8°C)	-2.7°F (-1.5°C)	11th Coolest	Coolest since: 1907	1960
Mar–May 1917 3-Month	47.0°F (8.3°C)	49.7°F (9.8°C)	-2.7°F (-1.5°C)	118th Warmest	Warmest since: 1916	2012
Feb–May 1917 4-Month	40.5°F (4.7°C)	44.2°F (6.8°C)	-3.7°F (-2.1°C)	8th Coolest	Coolest since: 1912	1978
	40.5°F (4.7°C)	44.2°F (6.8°C)	-3.7°F (-2.1°C)	121st Warmest	Warmest since: 1916	2012
	Ties: 1899
Jan–May 1917 5-Month	37.4°F (3.0°C)	40.1°F (4.5°C)	-2.7°F (-1.5°C)	16th Coolest	Coolest since: 1912	1978
	37.4°F (3.0°C)	40.1°F (4.5°C)	-2.7°F (-1.5°C)	113th Warmest	Warmest since: 1916	2012
	Ties: 1963
Dec 1916–May 1917 6-Month	35.3°F (1.8°C)	38.1°F (3.4°C)	-2.8°F (-1.6°C)	13th Coolest	Coolest since: 1912	1978
Dec 1916–May 1917 6-Month	35.3°F (1.8°C)	38.1°F (3.4°C)	-2.8°F (-1.6°C)	115th Warmest	Warmest since: 1916	2012
Nov 1916–May 1917 7-Month	36.1°F (2.3°C)	38.3°F (3.5°C)	-2.2°F (-1.2°C)	16th Coolest	Coolest since: 1912	1904
	36.1°F (2.3°C)	38.3°F (3.5°C)	-2.2°F (-1.2°C)	112th Warmest	Warmest since: 1916	2012
	Ties: 1901, 1982, 1996
Oct 1916–May 1917 8-Month	38.2°F (3.4°C)	40.2°F (4.6°C)	-2.0°F (-1.2°C)	15th Coolest	Coolest since: 1912	1904
	38.2°F (3.4°C)	40.2°F (4.6°C)	-2.0°F (-1.2°C)	113th Warmest	Warmest since: 1916	2012
	Ties: 1960, 1977
Sep 1916–May 1917 9-Month	41.0°F (5.0°C)	43.0°F (6.1°C)	-2.0°F (-1.1°C)	14th Coolest	Coolest since: 1912	1904
	41.0°F (5.0°C)	43.0°F (6.1°C)	-2.0°F (-1.1°C)	114th Warmest	Warmest since: 1916	2012
	Ties: 1926
Aug 1916–May 1917 10-Month	44.4°F (6.9°C)	45.8°F (7.7°C)	-1.4°F (-0.8°C)	18th Coolest	Coolest since: 1912	1904
	44.4°F (6.9°C)	45.8°F (7.7°C)	-1.4°F (-0.8°C)	110th Warmest	Warmest since: 1916	2012
	Ties: 1897
Jul 1916–May 1917 11-Month	47.6°F (8.7°C)	48.5°F (9.2°C)	-0.9°F (-0.5°C)	27th Coolest	Coolest since: 1916	1904
	47.6°F (8.7°C)	48.5°F (9.2°C)	-0.9°F (-0.5°C)	101st Warmest	Warmest since: 1915	2012
	Ties: 1960, 1994
Jun 1916–May 1917 12-Month	49.1°F (9.5°C)	50.3°F (10.2°C)	-1.2°F (-0.7°C)	18th Coolest	Coolest since: 1916	1904
	49.1°F (9.5°C)	50.3°F (10.2°C)	-1.2°F (-0.7°C)	110th Warmest	Warmest since: 1915	2012
	Ties: 1902, 1920, 1926
Dec 1915–May 1917 18-Month	45.0°F (7.2°C)	46.2°F (7.9°C)	-1.2°F (-0.7°C)	13th Coolest	Coolest since: 1916	1905
	45.0°F (7.2°C)	46.2°F (7.9°C)	-1.2°F (-0.7°C)	114th Warmest	Warmest since: 1915	2017
	Ties: 1900, 1906, 1912, 1997
Jun 1915–May 1917 24-Month	49.0°F (9.4°C)	50.3°F (10.2°C)	-1.3°F (-0.8°C)	9th Coolest	Coolest since: 1913	1905
	49.0°F (9.4°C)	50.3°F (10.2°C)	-1.3°F (-0.8°C)	118th Warmest	Warmest since: 1916	2017
	Ties: 1912, 1952
Jun 1914–May 1917 36-Month	49.5°F (9.7°C)	50.3°F (10.2°C)	-0.8°F (-0.5°C)	16th Coolest	Coolest since: 1913	1905, 1906
	49.5°F (9.7°C)	50.3°F (10.2°C)	-0.8°F (-0.5°C)	110th Warmest	Warmest since: 1916	2018
	Ties: 1926, 1963
Jun 1913–May 1917 48-Month	50.0°F (10.0°C)	50.3°F (10.2°C)	-0.3°F (-0.2°C)	41st Coolest	Coolest since: 1915	1905
	50.0°F (10.0°C)	50.3°F (10.2°C)	-0.3°F (-0.2°C)	84th Warmest	Warmest since: 1916	2019
	Ties: 1921, 1960, 1997
Jun 1912–May 1917 60-Month	49.9°F (9.9°C)	50.2°F (10.1°C)	-0.3°F (-0.2°C)	38th Coolest	Coolest since: 1916	1905, 1906, 1908
	49.9°F (9.9°C)	50.2°F (10.1°C)	-0.3°F (-0.2°C)	86th Warmest	Warmest since: 1915	2020
	Ties: 1965, 1966, 1967, 1968, 1997

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings