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, June 2015

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
June 2015 1-Month	70.6°F (21.4°C)	70.4°F (21.3°C)	0.2°F (0.1°C)	58th Coolest	Coolest since: 2013	1903
	70.6°F (21.4°C)	70.4°F (21.3°C)	0.2°F (0.1°C)	71st Warmest	Warmest since: 2014	1933
	Ties: 1948, 1957
May–Jun 2015 2-Month	67.8°F (19.9°C)	65.8°F (18.8°C)	2.0°F (1.1°C)	100th Coolest	Coolest since: 2014	1907
	67.8°F (19.9°C)	65.8°F (18.8°C)	2.0°F (1.1°C)	29th Warmest	Warmest since: 2012	2018
	Ties: 1895, 1952
Apr–Jun 2015 3-Month	62.7°F (17.1°C)	60.4°F (15.8°C)	2.3°F (1.3°C)	108th Coolest	Coolest since: 2014	1907
	62.7°F (17.1°C)	60.4°F (15.8°C)	2.3°F (1.3°C)	21st Warmest	Warmest since: 2012	1991
	Ties: 1944, 1962, 1988
Mar–Jun 2015 4-Month	56.1°F (13.4°C)	54.9°F (12.7°C)	1.2°F (0.7°C)	90th Coolest	Coolest since: 2014	1926, 1960
	56.1°F (13.4°C)	54.9°F (12.7°C)	1.2°F (0.7°C)	39th Warmest	Warmest since: 2012	2012
	Ties: 1918, 1949, 2018
Feb–Jun 2015 5-Month	48.4°F (9.1°C)	49.4°F (9.7°C)	-1.0°F (-0.6°C)	36th Coolest	Coolest since: 2014	1904, 1947
	48.4°F (9.1°C)	49.4°F (9.7°C)	-1.0°F (-0.6°C)	93rd Warmest	Warmest since: 2013	2012
	Ties: 1966
Jan–Jun 2015 6-Month	44.2°F (6.8°C)	45.2°F (7.3°C)	-1.0°F (-0.5°C)	35th Coolest	Coolest since: 2014	1912
	44.2°F (6.8°C)	45.2°F (7.3°C)	-1.0°F (-0.5°C)	94th Warmest	Warmest since: 2013	2012
	Ties: 1923, 1984, 1997, 2003
Dec 2014–Jun 2015 7-Month	42.6°F (5.9°C)	42.8°F (6.0°C)	-0.2°F (-0.1°C)	55th Coolest	Coolest since: 2014	1904
	42.6°F (5.9°C)	42.8°F (6.0°C)	-0.2°F (-0.1°C)	73rd Warmest	Warmest since: 2013	2012
	Ties: 1937
Nov 2014–Jun 2015 8-Month	41.4°F (5.2°C)	42.3°F (5.7°C)	-0.9°F (-0.5°C)	30th Coolest	Coolest since: 2014	1904
	41.4°F (5.2°C)	42.3°F (5.7°C)	-0.9°F (-0.5°C)	98th Warmest	Warmest since: 2013	2012
	Ties: 1897, 1958, 1961, 1969
Oct 2014–Jun 2015 9-Month	42.8°F (6.0°C)	43.6°F (6.4°C)	-0.8°F (-0.4°C)	32nd Coolest	Coolest since: 2014	1904
	42.8°F (6.0°C)	43.6°F (6.4°C)	-0.8°F (-0.4°C)	96th Warmest	Warmest since: 2013	2012
	Ties: 1906, 1915, 1961, 1969, 1980
Sep 2014–Jun 2015 10-Month	44.9°F (7.2°C)	45.8°F (7.7°C)	-0.9°F (-0.5°C)	31st Coolest	Coolest since: 2014	1904
	44.9°F (7.2°C)	45.8°F (7.7°C)	-0.9°F (-0.5°C)	97th Warmest	Warmest since: 2013	2012
	Ties: 1915, 1916
Aug 2014–Jun 2015 11-Month	47.4°F (8.6°C)	48.2°F (9.0°C)	-0.8°F (-0.4°C)	29th Coolest	Coolest since: 2014	1904
	47.4°F (8.6°C)	48.2°F (9.0°C)	-0.8°F (-0.4°C)	99th Warmest	Warmest since: 2013	2012, 2017
	Ties: 1903, 1907, 1908, 1943, 1980, 1994
Jul 2014–Jun 2015 12-Month	49.2°F (9.6°C)	50.3°F (10.2°C)	-1.1°F (-0.6°C)	21st Coolest	Coolest since: 2014	1904
	49.2°F (9.6°C)	50.3°F (10.2°C)	-1.1°F (-0.6°C)	107th Warmest	Warmest since: 2013	2012
	Ties: 1910, 1917, 1924, 1997
Jan 2014–Jun 2015 18-Month	46.9°F (8.3°C)	48.6°F (9.2°C)	-1.7°F (-0.9°C)	7th Coolest	Coolest since: 1980	1905
	46.9°F (8.3°C)	48.6°F (9.2°C)	-1.7°F (-0.9°C)	121st Warmest	Warmest since: 2014	2017
	Ties: 1913, 1978
Jul 2013–Jun 2015 24-Month	48.8°F (9.3°C)	50.3°F (10.2°C)	-1.5°F (-0.9°C)	6th Coolest	Coolest since: 1979	1905
Jul 2013–Jun 2015 24-Month	48.8°F (9.3°C)	50.3°F (10.2°C)	-1.5°F (-0.9°C)	121st Warmest	Warmest since: 2014	2017
Jul 2012–Jun 2015 36-Month	49.7°F (9.8°C)	50.3°F (10.2°C)	-0.6°F (-0.4°C)	28th Coolest	Coolest since: 1982	1905, 1906
	49.7°F (9.8°C)	50.3°F (10.2°C)	-0.6°F (-0.4°C)	98th Warmest	Warmest since: 2014	2018
	Ties: 1914, 1971
Jul 2011–Jun 2015 48-Month	51.0°F (10.6°C)	50.2°F (10.1°C)	0.8°F (0.5°C)	85th Coolest	Coolest since: 2011	1905
	51.0°F (10.6°C)	50.2°F (10.1°C)	0.8°F (0.5°C)	40th Warmest	Warmest since: 2014	2019
	Ties: 1976, 1994
Jul 2010–Jun 2015 60-Month	51.0°F (10.6°C)	50.2°F (10.1°C)	0.8°F (0.5°C)	83rd Coolest	Coolest since: 1998	1906
	51.0°F (10.6°C)	50.2°F (10.1°C)	0.8°F (0.5°C)	41st Warmest	Warmest since: 2014	2020
	Ties: 1925, 1932, 1941, 1976, 1994

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings