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 1897

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1897 1-Month	56.9°F (13.8°C)	61.0°F (16.1°C)	-4.1°F (-2.3°C)	12th Coolest	Coolest since: 1897	1907
May 1897 1-Month	56.9°F (13.8°C)	61.0°F (16.1°C)	-4.1°F (-2.3°C)	117th Warmest	Warmest since: 1896	2018
Apr–May 1897 2-Month	52.3°F (11.3°C)	55.4°F (13.0°C)	-3.1°F (-1.7°C)	10th Coolest	Coolest since: 1897	1907
Apr–May 1897 2-Month	52.3°F (11.3°C)	55.4°F (13.0°C)	-3.1°F (-1.7°C)	119th Warmest	Warmest since: 1896	1977
Mar–May 1897 3-Month	47.4°F (8.6°C)	49.7°F (9.8°C)	-2.3°F (-1.2°C)	18th Coolest	Coolest since: 1897	1960
	47.4°F (8.6°C)	49.7°F (9.8°C)	-2.3°F (-1.2°C)	111th Warmest	Warmest since: 1896	2012
	Ties: 1906
Feb–May 1897 4-Month	42.7°F (5.9°C)	44.1°F (6.7°C)	-1.4°F (-0.8°C)	32nd Coolest	Coolest since: 1895	1978
Feb–May 1897 4-Month	42.7°F (5.9°C)	44.1°F (6.7°C)	-1.4°F (-0.8°C)	97th Warmest	Warmest since: 1896	2012
Jan–May 1897 5-Month	38.4°F (3.6°C)	40.1°F (4.5°C)	-1.7°F (-0.9°C)	23rd Coolest	Coolest since: 1895	1978
	38.4°F (3.6°C)	40.1°F (4.5°C)	-1.7°F (-0.9°C)	106th Warmest	Warmest since: 1896	2012
	Ties: 1918, 1996
Dec 1896–May 1897 6-Month	37.3°F (2.9°C)	38.1°F (3.4°C)	-0.8°F (-0.5°C)	36th Coolest	Coolest since: 1897	1978
	37.3°F (2.9°C)	38.1°F (3.4°C)	-0.8°F (-0.5°C)	92nd Warmest	Warmest since: 1896	2012
	Ties: 1971, 1980
Nov 1896–May 1897 7-Month	37.5°F (3.1°C)	38.3°F (3.5°C)	-0.8°F (-0.4°C)	31st Coolest	Coolest since: 1897	1904
	37.5°F (3.1°C)	38.3°F (3.5°C)	-0.8°F (-0.4°C)	97th Warmest	Warmest since: 1896	2012
	Ties: 1915, 1923, 1961, 1971, 1994
Oct 1896–May 1897 8-Month	38.9°F (3.8°C)	40.2°F (4.6°C)	-1.3°F (-0.8°C)	23rd Coolest	Coolest since: 1897	1904
Oct 1896–May 1897 8-Month	38.9°F (3.8°C)	40.2°F (4.6°C)	-1.3°F (-0.8°C)	105th Warmest	Warmest since: 1896	2012
Sep 1896–May 1897 9-Month	41.3°F (5.2°C)	43.0°F (6.1°C)	-1.7°F (-0.9°C)	19th Coolest	Coolest since: 1897	1904
Sep 1896–May 1897 9-Month	41.3°F (5.2°C)	43.0°F (6.1°C)	-1.7°F (-0.9°C)	109th Warmest	Warmest since: 1896	2012
Aug 1896–May 1897 10-Month	44.4°F (6.9°C)	45.9°F (7.7°C)	-1.5°F (-0.8°C)	18th Coolest	Coolest since: 1897	1904
	44.4°F (6.9°C)	45.9°F (7.7°C)	-1.5°F (-0.8°C)	110th Warmest	Warmest since: 1896	2012
	Ties: 1917
Jul 1896–May 1897 11-Month	47.1°F (8.4°C)	48.5°F (9.2°C)	-1.4°F (-0.8°C)	17th Coolest	Coolest since: 1897	1904
	47.1°F (8.4°C)	48.5°F (9.2°C)	-1.4°F (-0.8°C)	111th Warmest	Warmest since: 1896	2012
	Ties: 1902
Jun 1896–May 1897 12-Month	49.0°F (9.4°C)	50.3°F (10.2°C)	-1.3°F (-0.8°C)	16th Coolest	Coolest since: 1897	1904
	49.0°F (9.4°C)	50.3°F (10.2°C)	-1.3°F (-0.8°C)	112th Warmest	Warmest since: 1896	2012
	Ties: 1970
Dec 1895–May 1897 18-Month	46.0°F (7.8°C)	46.2°F (7.9°C)	-0.2°F (-0.1°C)	51st Coolest	Coolest since: 1897	1905
	46.0°F (7.8°C)	46.2°F (7.9°C)	-0.2°F (-0.1°C)	76th Warmest	Warmest to Date	2017
	Ties: 1965, 1967, 1985
Jun 1895–May 1897 24-Month	49.9°F (9.9°C)	50.3°F (10.2°C)	-0.4°F (-0.3°C)	41st Coolest	Coolest since: 1897	1905
	49.9°F (9.9°C)	50.3°F (10.2°C)	-0.4°F (-0.3°C)	86th Warmest	Warmest to Date	2017
	Ties: 1898, 1901, 1909, 1910, 1924, 1962, 1982

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings