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 1927

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
August 1927 1-Month	70.5°F (21.4°C)	76.0°F (24.4°C)	-5.5°F (-3.0°C)	2nd Coolest	Coolest since: 1915	1915
August 1927 1-Month	70.5°F (21.4°C)	76.0°F (24.4°C)	-5.5°F (-3.0°C)	127th Warmest	Warmest since: 1926	1936
Jul–Aug 1927 2-Month	72.9°F (22.7°C)	77.0°F (25.0°C)	-4.1°F (-2.3°C)	4th Coolest	Coolest since: 1915	1967
Jul–Aug 1927 2-Month	72.9°F (22.7°C)	77.0°F (25.0°C)	-4.1°F (-2.3°C)	125th Warmest	Warmest since: 1926	1936
Jun–Aug 1927 3-Month	72.0°F (22.2°C)	75.9°F (24.4°C)	-3.9°F (-2.2°C)	1st Coolest	Coolest since: 1915	1915, 1927
	72.0°F (22.2°C)	75.9°F (24.4°C)	-3.9°F (-2.2°C)	128th Warmest	Warmest since: 1926	1936
	Ties: 1915
May–Aug 1927 4-Month	70.1°F (21.2°C)	73.2°F (22.9°C)	-3.1°F (-1.7°C)	2nd Coolest	Coolest since: 1917	1967
	70.1°F (21.2°C)	73.2°F (22.9°C)	-3.1°F (-1.7°C)	127th Warmest	Warmest since: 1926	1936
	Ties: 1915, 1917
Apr–Aug 1927 5-Month	67.5°F (19.7°C)	69.6°F (20.9°C)	-2.1°F (-1.2°C)	9th Coolest	Coolest since: 1920	1907
Apr–Aug 1927 5-Month	67.5°F (19.7°C)	69.6°F (20.9°C)	-2.1°F (-1.2°C)	120th Warmest	Warmest since: 1926	2010
Mar–Aug 1927 6-Month	63.9°F (17.7°C)	65.4°F (18.6°C)	-1.5°F (-0.9°C)	15th Coolest	Coolest since: 1924	1904
	63.9°F (17.7°C)	65.4°F (18.6°C)	-1.5°F (-0.9°C)	114th Warmest	Warmest since: 1926	2012
	Ties: 1951
Feb–Aug 1927 7-Month	60.9°F (16.1°C)	61.1°F (16.2°C)	-0.2°F (-0.1°C)	55th Coolest	Coolest since: 1926	1904
	60.9°F (16.1°C)	61.1°F (16.2°C)	-0.2°F (-0.1°C)	74th Warmest	Warmest since: 1925	2012
	Ties: 1963, 1985
Jan–Aug 1927 8-Month	57.1°F (13.9°C)	57.3°F (14.1°C)	-0.2°F (-0.2°C)	52nd Coolest	Coolest since: 1926	1912
	57.1°F (13.9°C)	57.3°F (14.1°C)	-0.2°F (-0.2°C)	77th Warmest	Warmest since: 1925	2012
	Ties: 1937, 1945, 1962, 1967, 1989
Dec 1926–Aug 1927 9-Month	54.3°F (12.4°C)	54.8°F (12.7°C)	-0.5°F (-0.3°C)	37th Coolest	Coolest since: 1926	1904
	54.3°F (12.4°C)	54.8°F (12.7°C)	-0.5°F (-0.3°C)	91st Warmest	Warmest since: 1925	2012
	Ties: 1947, 1994, 2001
Nov 1926–Aug 1927 10-Month	52.8°F (11.6°C)	53.8°F (12.1°C)	-1.0°F (-0.5°C)	27th Coolest	Coolest since: 1924	1904
	52.8°F (11.6°C)	53.8°F (12.1°C)	-1.0°F (-0.5°C)	101st Warmest	Warmest since: 1926	2012
	Ties: 1929, 1969
Oct 1926–Aug 1927 11-Month	53.2°F (11.8°C)	54.1°F (12.3°C)	-0.9°F (-0.5°C)	27th Coolest	Coolest since: 1926	1904
	53.2°F (11.8°C)	54.1°F (12.3°C)	-0.9°F (-0.5°C)	101st Warmest	Warmest since: 1925	2012
	Ties: 1906, 1963, 1969, 1971
Sep 1926–Aug 1927 12-Month	54.7°F (12.6°C)	55.4°F (13.0°C)	-0.7°F (-0.4°C)	32nd Coolest	Coolest since: 1926	1904
	54.7°F (12.6°C)	55.4°F (13.0°C)	-0.7°F (-0.4°C)	96th Warmest	Warmest since: 1926	2012
	Ties: 1897, 1926
Mar 1926–Aug 1927 18-Month	57.8°F (14.3°C)	58.7°F (14.8°C)	-0.9°F (-0.5°C)	17th Coolest	Coolest since: 1924	1904
	57.8°F (14.3°C)	58.7°F (14.8°C)	-0.9°F (-0.5°C)	111th Warmest	Warmest since: 1926	2012
	Ties: 1917, 1982, 1984
Sep 1925–Aug 1927 24-Month	54.7°F (12.6°C)	55.4°F (13.0°C)	-0.7°F (-0.4°C)	23rd Coolest	Coolest since: 1918	1979
	54.7°F (12.6°C)	55.4°F (13.0°C)	-0.7°F (-0.4°C)	104th Warmest	Warmest since: 1926	2017
	Ties: 1959, 1960, 1963, 1982
Sep 1924–Aug 1927 36-Month	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	52nd Coolest	Coolest since: 1926	1979
	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	74th Warmest	Warmest since: 1925	2018
	Ties: 1959, 1995
Sep 1923–Aug 1927 48-Month	54.9°F (12.7°C)	55.3°F (12.9°C)	-0.4°F (-0.2°C)	24th Coolest	Coolest since: 1920	1980
	54.9°F (12.7°C)	55.3°F (12.9°C)	-0.4°F (-0.2°C)	101st Warmest	Warmest since: 1926	2019
	Ties: 1900, 1912, 1913, 1915, 1919, 1960, 1972, 1984
Sep 1922–Aug 1927 60-Month	55.1°F (12.8°C)	55.3°F (12.9°C)	-0.2°F (-0.1°C)	35th Coolest	Coolest since: 1921	1906
	55.1°F (12.8°C)	55.3°F (12.9°C)	-0.2°F (-0.1°C)	89th Warmest	Warmest since: 1926	2020
	Ties: 1900, 1910, 1913, 1915, 1916, 1921, 1929, 1951, 1967, 1968, 1986

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings