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 1915

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1915 1-Month	57.3°F (14.1°C)	61.0°F (16.1°C)	-3.7°F (-2.0°C)	15th Coolest	Coolest since: 1910	1907
	57.3°F (14.1°C)	61.0°F (16.1°C)	-3.7°F (-2.0°C)	114th Warmest	Warmest since: 1914	2018
	Ties: 1940, 1968
Apr–May 1915 2-Month	56.6°F (13.7°C)	55.5°F (13.1°C)	1.1°F (0.6°C)	88th Coolest	Coolest since: 1913	1907
	56.6°F (13.7°C)	55.5°F (13.1°C)	1.1°F (0.6°C)	41st Warmest	Warmest since: 1914	1977
	Ties: 1900, 1903, 1925, 1969, 2013
Mar–May 1915 3-Month	48.8°F (9.3°C)	49.7°F (9.8°C)	-0.9°F (-0.5°C)	41st Coolest	Coolest since: 1913	1960
	48.8°F (9.3°C)	49.7°F (9.8°C)	-0.9°F (-0.5°C)	88th Warmest	Warmest since: 1914	2012
	Ties: 1979, 2013
Feb–May 1915 4-Month	45.0°F (7.2°C)	44.2°F (6.8°C)	0.8°F (0.4°C)	81st Coolest	Coolest since: 1914	1978
	45.0°F (7.2°C)	44.2°F (6.8°C)	0.8°F (0.4°C)	48th Warmest	Warmest since: 1911	2012
	Ties: 1952
Jan–May 1915 5-Month	40.1°F (4.5°C)	40.1°F (4.5°C)	0.0°F (0.0°C)	60th Coolest	Coolest since: 1914	1978
Jan–May 1915 5-Month	40.1°F (4.5°C)	40.1°F (4.5°C)	0.0°F (0.0°C)	69th Warmest	Warmest since: 1911	2012
Dec 1914–May 1915 6-Month	36.8°F (2.7°C)	38.1°F (3.4°C)	-1.3°F (-0.7°C)	25th Coolest	Coolest since: 1912	1978
	36.8°F (2.7°C)	38.1°F (3.4°C)	-1.3°F (-0.7°C)	103rd Warmest	Warmest since: 1914	2012
	Ties: 1960
Nov 1914–May 1915 7-Month	37.5°F (3.1°C)	38.3°F (3.5°C)	-0.8°F (-0.4°C)	31st Coolest	Coolest since: 1912	1904
	37.5°F (3.1°C)	38.3°F (3.5°C)	-0.8°F (-0.4°C)	97th Warmest	Warmest since: 1914	2012
	Ties: 1897, 1923, 1961, 1971, 1994
Oct 1914–May 1915 8-Month	39.8°F (4.3°C)	40.2°F (4.6°C)	-0.4°F (-0.3°C)	42nd Coolest	Coolest since: 1912	1904
	39.8°F (4.3°C)	40.2°F (4.6°C)	-0.4°F (-0.3°C)	86th Warmest	Warmest since: 1914	2012
	Ties: 1900, 1923, 1959, 2003
Sep 1914–May 1915 9-Month	42.5°F (5.8°C)	43.0°F (6.1°C)	-0.5°F (-0.3°C)	37th Coolest	Coolest since: 1912	1904
	42.5°F (5.8°C)	43.0°F (6.1°C)	-0.5°F (-0.3°C)	91st Warmest	Warmest since: 1914	2012
	Ties: 1906, 1929
Aug 1914–May 1915 10-Month	45.6°F (7.6°C)	45.9°F (7.7°C)	-0.3°F (-0.1°C)	44th Coolest	Coolest since: 1912	1904
	45.6°F (7.6°C)	45.9°F (7.7°C)	-0.3°F (-0.1°C)	84th Warmest	Warmest since: 1914	2012
	Ties: 1900, 1901, 1929, 1947, 1959, 1971
Jul 1914–May 1915 11-Month	48.4°F (9.1°C)	48.4°F (9.1°C)	0.0°F (0.0°C)	56th Coolest	Coolest since: 1913	1904
	48.4°F (9.1°C)	48.4°F (9.1°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1914	2012
	Ties: 1911, 1923, 2009
Jun 1914–May 1915 12-Month	50.5°F (10.3°C)	50.3°F (10.2°C)	0.2°F (0.1°C)	66th Coolest	Coolest since: 1913	1904
	50.5°F (10.3°C)	50.3°F (10.2°C)	0.2°F (0.1°C)	62nd Warmest	Warmest since: 1914	2012
	Ties: 1909, 1986
Dec 1913–May 1915 18-Month	46.6°F (8.1°C)	46.3°F (7.9°C)	0.3°F (0.2°C)	73rd Coolest	Coolest since: 1913	1905
	46.6°F (8.1°C)	46.3°F (7.9°C)	0.3°F (0.2°C)	54th Warmest	Warmest since: 1914	2017
	Ties: 1909, 1938, 1947
Jun 1913–May 1915 24-Month	51.0°F (10.6°C)	50.3°F (10.2°C)	0.7°F (0.4°C)	86th Coolest	Coolest since: 1914	1905
	51.0°F (10.6°C)	50.3°F (10.2°C)	0.7°F (0.4°C)	41st Warmest	Warmest to Date	2017
	Ties: 1921, 1974, 1993
Jun 1912–May 1915 36-Month	50.6°F (10.3°C)	50.3°F (10.2°C)	0.3°F (0.1°C)	72nd Coolest	Coolest since: 1914	1905, 1906
	50.6°F (10.3°C)	50.3°F (10.2°C)	0.3°F (0.1°C)	54th Warmest	Warmest to Date	2018
	Ties: 1936, 1946, 1973, 1975
Jun 1911–May 1915 48-Month	49.9°F (9.9°C)	50.2°F (10.1°C)	-0.3°F (-0.2°C)	38th Coolest	Coolest since: 1914	1905
	49.9°F (9.9°C)	50.2°F (10.1°C)	-0.3°F (-0.2°C)	87th Warmest	Warmest to Date	2019
	Ties: 1965, 1966
Jun 1910–May 1915 60-Month	50.0°F (10.0°C)	50.3°F (10.2°C)	-0.3°F (-0.2°C)	44th Coolest	Coolest since: 1914	1905, 1906, 1908
	50.0°F (10.0°C)	50.3°F (10.2°C)	-0.3°F (-0.2°C)	80th Warmest	Warmest to Date	2020
	Ties: 1961, 1984

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