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 1911

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1911 1-Month	67.1°F (19.5°C)	61.0°F (16.1°C)	6.1°F (3.4°C)	120th Coolest	Coolest since: 1910	1907
	67.1°F (19.5°C)	61.0°F (16.1°C)	6.1°F (3.4°C)	9th Warmest	Warmest since: 1896	2018
	Ties: 2007
Apr–May 1911 2-Month	57.0°F (13.9°C)	55.4°F (13.0°C)	1.6°F (0.9°C)	95th Coolest	Coolest since: 1910	1907
	57.0°F (13.9°C)	55.4°F (13.0°C)	1.6°F (0.9°C)	34th Warmest	Warmest since: 1906	1977
	Ties: 2014
Mar–May 1911 3-Month	50.6°F (10.3°C)	49.7°F (9.8°C)	0.9°F (0.5°C)	82nd Coolest	Coolest since: 1909	1960
	50.6°F (10.3°C)	49.7°F (9.8°C)	0.9°F (0.5°C)	47th Warmest	Warmest since: 1910	2012
	Ties: 1962, 1990
Feb–May 1911 4-Month	45.8°F (7.7°C)	44.1°F (6.7°C)	1.7°F (1.0°C)	96th Coolest	Coolest since: 1910	1978
	45.8°F (7.7°C)	44.1°F (6.7°C)	1.7°F (1.0°C)	33rd Warmest	Warmest since: 1896	2012
	Ties: 1974
Jan–May 1911 5-Month	42.1°F (5.6°C)	40.1°F (4.5°C)	2.0°F (1.1°C)	100th Coolest	Coolest since: 1910	1978
	42.1°F (5.6°C)	40.1°F (4.5°C)	2.0°F (1.1°C)	29th Warmest	Warmest since: 1896	2012
	Ties: 1964
Dec 1910–May 1911 6-Month	39.0°F (3.9°C)	38.1°F (3.4°C)	0.9°F (0.5°C)	81st Coolest	Coolest since: 1910	1978
	39.0°F (3.9°C)	38.1°F (3.4°C)	0.9°F (0.5°C)	47th Warmest	Warmest since: 1908	2012
	Ties: 1908, 1957, 1974, 1988
Nov 1910–May 1911 7-Month	38.3°F (3.5°C)	38.3°F (3.5°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1910	1904
	38.3°F (3.5°C)	38.3°F (3.5°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1909	2012
	Ties: 1913, 2009, 2019
Oct 1910–May 1911 8-Month	40.4°F (4.7°C)	40.2°F (4.6°C)	0.2°F (0.1°C)	70th Coolest	Coolest since: 1910	1904
	40.4°F (4.7°C)	40.2°F (4.6°C)	0.2°F (0.1°C)	58th Warmest	Warmest since: 1903	2012
	Ties: 1896, 1975, 1981
Sep 1910–May 1911 9-Month	43.1°F (6.2°C)	43.0°F (6.1°C)	0.1°F (0.1°C)	68th Coolest	Coolest since: 1910	1904
	43.1°F (6.2°C)	43.0°F (6.1°C)	0.1°F (0.1°C)	60th Warmest	Warmest since: 1909	2012
	Ties: 1903, 1913, 1945, 1947, 2001, 2009, 2011
Aug 1910–May 1911 10-Month	45.8°F (7.7°C)	45.9°F (7.7°C)	-0.1°F (0.0°C)	54th Coolest	Coolest since: 1910	1904
	45.8°F (7.7°C)	45.9°F (7.7°C)	-0.1°F (0.0°C)	74th Warmest	Warmest since: 1909	2012
	Ties: 1913, 1944
Jul 1910–May 1911 11-Month	48.4°F (9.1°C)	48.5°F (9.2°C)	-0.1°F (-0.1°C)	56th Coolest	Coolest since: 1910	1904
	48.4°F (9.1°C)	48.5°F (9.2°C)	-0.1°F (-0.1°C)	72nd Warmest	Warmest since: 1909	2012
	Ties: 1915, 1923, 2009
Jun 1910–May 1911 12-Month	50.0°F (10.0°C)	50.3°F (10.2°C)	-0.3°F (-0.2°C)	52nd Coolest	Coolest since: 1910	1904
	50.0°F (10.0°C)	50.3°F (10.2°C)	-0.3°F (-0.2°C)	76th Warmest	Warmest since: 1909	2012
	Ties: 1900, 1928, 1947
Dec 1909–May 1911 18-Month	45.6°F (7.6°C)	46.3°F (7.9°C)	-0.7°F (-0.3°C)	34th Coolest	Coolest since: 1910	1905
	45.6°F (7.6°C)	46.3°F (7.9°C)	-0.7°F (-0.3°C)	93rd Warmest	Warmest since: 1910	2017
	Ties: 1910, 1929, 1959, 1961, 1962, 1964, 1983
Jun 1909–May 1911 24-Month	49.7°F (9.8°C)	50.3°F (10.2°C)	-0.6°F (-0.4°C)	30th Coolest	Coolest since: 1908	1905
	49.7°F (9.8°C)	50.3°F (10.2°C)	-0.6°F (-0.4°C)	97th Warmest	Warmest since: 1910	2017
	Ties: 1899, 1907, 1916, 1925, 1964
Jun 1908–May 1911 36-Month	49.9°F (9.9°C)	50.3°F (10.2°C)	-0.4°F (-0.3°C)	41st Coolest	Coolest since: 1910	1905, 1906
	49.9°F (9.9°C)	50.3°F (10.2°C)	-0.4°F (-0.3°C)	85th Warmest	Warmest since: 1898	2018
	Ties: 1925, 1929, 1953, 1965
Jun 1907–May 1911 48-Month	49.8°F (9.9°C)	50.3°F (10.2°C)	-0.5°F (-0.3°C)	31st Coolest	Coolest since: 1910	1905
	49.8°F (9.9°C)	50.3°F (10.2°C)	-0.5°F (-0.3°C)	94th Warmest	Warmest since: 1909	2019
	Ties: 1899, 1901, 1909, 1914, 1930, 1964
Jun 1906–May 1911 60-Month	49.8°F (9.9°C)	50.3°F (10.2°C)	-0.5°F (-0.3°C)	29th Coolest	Coolest since: 1910	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: 1900	2020
	Ties: 1900, 1921, 1927, 1964, 1969, 1972, 1978, 1983

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings