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 8. Southwest

Average Temperature Rankings, August 1911

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
August 1911 1-Month	74.8°F (23.8°C)	76.0°F (24.4°C)	-1.2°F (-0.6°C)	34th Coolest	Coolest since: 1910	1915
	74.8°F (23.8°C)	76.0°F (24.4°C)	-1.2°F (-0.6°C)	95th Warmest	Warmest since: 1909	1936
	Ties: 1902, 1939, 1963, 1965, 1999
Jul–Aug 1911 2-Month	76.2°F (24.6°C)	77.0°F (25.0°C)	-0.8°F (-0.4°C)	39th Coolest	Coolest since: 1910	1967
	76.2°F (24.6°C)	77.0°F (25.0°C)	-0.8°F (-0.4°C)	90th Warmest	Warmest since: 1909	1936
	Ties: 1951, 1975, 1981, 1989
Jun–Aug 1911 3-Month	76.6°F (24.8°C)	75.9°F (24.4°C)	0.7°F (0.4°C)	85th Coolest	Coolest since: 1910	1915, 1927
	76.6°F (24.8°C)	75.9°F (24.4°C)	0.7°F (0.4°C)	44th Warmest	Warmest since: 1909	1936
	Ties: 2020
May–Aug 1911 4-Month	74.8°F (23.8°C)	73.2°F (22.9°C)	1.6°F (0.9°C)	102nd Coolest	Coolest since: 1910	1967
	74.8°F (23.8°C)	73.2°F (22.9°C)	1.6°F (0.9°C)	27th Warmest	Warmest since: 1901	1936
	Ties: 1932, 1962, 1988, 2016
Apr–Aug 1911 5-Month	70.6°F (21.4°C)	69.7°F (20.9°C)	0.9°F (0.5°C)	85th Coolest	Coolest since: 1910	1907
	70.6°F (21.4°C)	69.7°F (20.9°C)	0.9°F (0.5°C)	44th Warmest	Warmest since: 1901	2010
	Ties: 1901
Mar–Aug 1911 6-Month	66.4°F (19.1°C)	65.4°F (18.6°C)	1.0°F (0.5°C)	92nd Coolest	Coolest since: 1910	1904
	66.4°F (19.1°C)	65.4°F (18.6°C)	1.0°F (0.5°C)	37th Warmest	Warmest since: 1896	2012
	Ties: 1995, 2000, 2001, 2002
Feb–Aug 1911 7-Month	62.5°F (16.9°C)	61.1°F (16.2°C)	1.4°F (0.7°C)	101st Coolest	Coolest since: 1910	1904
	62.5°F (16.9°C)	61.1°F (16.2°C)	1.4°F (0.7°C)	28th Warmest	Warmest to Date	2012
	Ties: 1934, 1955
Jan–Aug 1911 8-Month	59.1°F (15.1°C)	57.3°F (14.1°C)	1.8°F (1.0°C)	106th Coolest	Coolest since: 1910	1912
	59.1°F (15.1°C)	57.3°F (14.1°C)	1.8°F (1.0°C)	23rd Warmest	Warmest to Date	2012
	Ties: 1990, 2011
Dec 1910–Aug 1911 9-Month	55.9°F (13.3°C)	54.8°F (12.7°C)	1.1°F (0.6°C)	94th Coolest	Coolest since: 1910	1904
	55.9°F (13.3°C)	54.8°F (12.7°C)	1.1°F (0.6°C)	34th Warmest	Warmest since: 1896	2012
	Ties: 1922, 1957, 1992
Nov 1910–Aug 1911 10-Month	54.4°F (12.4°C)	53.8°F (12.1°C)	0.6°F (0.3°C)	78th Coolest	Coolest since: 1910	1904
	54.4°F (12.4°C)	53.8°F (12.1°C)	0.6°F (0.3°C)	50th Warmest	Warmest since: 1909	2012
	Ties: 1913, 1931, 1942, 2019
Oct 1910–Aug 1911 11-Month	54.8°F (12.7°C)	54.1°F (12.3°C)	0.7°F (0.4°C)	81st Coolest	Coolest since: 1910	1904
	54.8°F (12.7°C)	54.1°F (12.3°C)	0.7°F (0.4°C)	47th Warmest	Warmest since: 1901	2012
	Ties: 1901, 1933, 1949
Sep 1910–Aug 1911 12-Month	56.1°F (13.4°C)	55.4°F (13.0°C)	0.7°F (0.4°C)	89th Coolest	Coolest since: 1910	1904
	56.1°F (13.4°C)	55.4°F (13.0°C)	0.7°F (0.4°C)	39th Warmest	Warmest since: 1909	2012
	Ties: 1909, 1919, 1946, 1964, 1983, 1992, 2004, 2021
Mar 1910–Aug 1911 18-Month	59.1°F (15.1°C)	58.7°F (14.8°C)	0.4°F (0.3°C)	73rd Coolest	Coolest since: 1910	1904
	59.1°F (15.1°C)	58.7°F (14.8°C)	0.4°F (0.3°C)	55th Warmest	Warmest since: 1909	2012
	Ties: 1898, 1972, 1981
Sep 1909–Aug 1911 24-Month	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	51st Coolest	Coolest since: 1910	1979
	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	76th Warmest	Warmest since: 1910	2017
	Ties: 1897, 1908, 1910, 1915, 1976
Sep 1908–Aug 1911 36-Month	55.6°F (13.1°C)	55.4°F (13.0°C)	0.2°F (0.1°C)	74th Coolest	Coolest since: 1910	1979
	55.6°F (13.1°C)	55.4°F (13.0°C)	0.2°F (0.1°C)	52nd Warmest	Warmest since: 1898	2018
	Ties: 1898, 1937, 1949, 1953
Sep 1907–Aug 1911 48-Month	55.5°F (13.1°C)	55.3°F (12.9°C)	0.2°F (0.2°C)	60th Coolest	Coolest since: 1910	1980
	55.5°F (13.1°C)	55.3°F (12.9°C)	0.2°F (0.2°C)	65th Warmest	Warmest to Date	2019
	Ties: 1948, 1995, 1998
Sep 1906–Aug 1911 60-Month	55.4°F (13.0°C)	55.3°F (12.9°C)	0.1°F (0.1°C)	56th Coolest	Coolest since: 1910	1906
	55.4°F (13.0°C)	55.3°F (12.9°C)	0.1°F (0.1°C)	68th Warmest	Warmest to Date	2020
	Ties: 1948, 1974

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings