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 1988

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
August 1988 1-Month	79.5°F (26.4°C)	76.0°F (24.4°C)	3.5°F (2.0°C)	116th Coolest	Coolest since: 1987	1915
	79.5°F (26.4°C)	76.0°F (24.4°C)	3.5°F (2.0°C)	13th Warmest	Warmest since: 1983	1936
	Ties: 1954
Jul–Aug 1988 2-Month	78.9°F (26.1°C)	76.9°F (24.9°C)	2.0°F (1.2°C)	107th Coolest	Coolest since: 1987	1967
	78.9°F (26.1°C)	76.9°F (24.9°C)	2.0°F (1.2°C)	22nd Warmest	Warmest since: 1983	1936
	Ties: 1900
Jun–Aug 1988 3-Month	77.7°F (25.4°C)	75.9°F (24.4°C)	1.8°F (1.0°C)	106th Coolest	Coolest since: 1987	1915, 1927
	77.7°F (25.4°C)	75.9°F (24.4°C)	1.8°F (1.0°C)	23rd Warmest	Warmest since: 1983	1936
	Ties: 1931, 1932
May–Aug 1988 4-Month	74.8°F (23.8°C)	73.2°F (22.9°C)	1.6°F (0.9°C)	102nd Coolest	Coolest since: 1986	1967
	74.8°F (23.8°C)	73.2°F (22.9°C)	1.6°F (0.9°C)	27th Warmest	Warmest since: 1987	1936
	Ties: 1911, 1932, 1962, 2016
Apr–Aug 1988 5-Month	71.0°F (21.7°C)	69.7°F (20.9°C)	1.3°F (0.8°C)	98th Coolest	Coolest since: 1985	1907
	71.0°F (21.7°C)	69.7°F (20.9°C)	1.3°F (0.8°C)	31st Warmest	Warmest since: 1987	2010
	Ties: 1922, 1933
Mar–Aug 1988 6-Month	66.7°F (19.3°C)	65.5°F (18.6°C)	1.2°F (0.7°C)	102nd Coolest	Coolest since: 1985	1904
	66.7°F (19.3°C)	65.5°F (18.6°C)	1.2°F (0.7°C)	27th Warmest	Warmest since: 1987	2012
	Ties: 1922, 1998
Feb–Aug 1988 7-Month	61.7°F (16.5°C)	61.1°F (16.2°C)	0.6°F (0.3°C)	83rd Coolest	Coolest since: 1985	1904
	61.7°F (16.5°C)	61.1°F (16.2°C)	0.6°F (0.3°C)	46th Warmest	Warmest since: 1987	2012
	Ties: 1956, 1981, 2019
Jan–Aug 1988 8-Month	57.6°F (14.2°C)	57.3°F (14.1°C)	0.3°F (0.1°C)	67th Coolest	Coolest since: 1985	1912
	57.6°F (14.2°C)	57.3°F (14.1°C)	0.3°F (0.1°C)	62nd Warmest	Warmest since: 1987	2012
	Ties: 1901, 1909, 1956
Dec 1987–Aug 1988 9-Month	55.4°F (13.0°C)	54.8°F (12.7°C)	0.6°F (0.3°C)	79th Coolest	Coolest since: 1985	1904
	55.4°F (13.0°C)	54.8°F (12.7°C)	0.6°F (0.3°C)	49th Warmest	Warmest since: 1987	2012
	Ties: 1909, 1931, 1976, 2021
Nov 1987–Aug 1988 10-Month	54.8°F (12.7°C)	53.8°F (12.1°C)	1.0°F (0.6°C)	94th Coolest	Coolest since: 1985	1904
	54.8°F (12.7°C)	53.8°F (12.1°C)	1.0°F (0.6°C)	34th Warmest	Warmest since: 1987	2012
	Ties: 1939, 1946, 1949, 1952, 2018
Oct 1987–Aug 1988 11-Month	54.5°F (12.5°C)	54.1°F (12.3°C)	0.4°F (0.2°C)	72nd Coolest	Coolest since: 1985	1904
	54.5°F (12.5°C)	54.1°F (12.3°C)	0.4°F (0.2°C)	56th Warmest	Warmest since: 1987	2012
	Ties: 1916, 1931, 1990
Sep 1987–Aug 1988 12-Month	55.8°F (13.2°C)	55.4°F (13.0°C)	0.4°F (0.2°C)	68th Coolest	Coolest since: 1985	1904
	55.8°F (13.2°C)	55.4°F (13.0°C)	0.4°F (0.2°C)	60th Warmest	Warmest since: 1987	2012
	Ties: 1930
Mar 1987–Aug 1988 18-Month	59.8°F (15.4°C)	58.7°F (14.8°C)	1.1°F (0.6°C)	98th Coolest	Coolest since: 1986	1904
	59.8°F (15.4°C)	58.7°F (14.8°C)	1.1°F (0.6°C)	30th Warmest	Warmest since: 1987	2012
	Ties: 1919, 1921
Sep 1986–Aug 1988 24-Month	56.4°F (13.6°C)	55.4°F (13.0°C)	1.0°F (0.6°C)	100th Coolest	Coolest since: 1986	1979
	56.4°F (13.6°C)	55.4°F (13.0°C)	1.0°F (0.6°C)	27th Warmest	Warmest since: 1987	2017
	Ties: 1953, 2008, 2019
Sep 1985–Aug 1988 36-Month	56.4°F (13.6°C)	55.3°F (12.9°C)	1.1°F (0.7°C)	104th Coolest	Coolest since: 1987	1979
	56.4°F (13.6°C)	55.3°F (12.9°C)	1.1°F (0.7°C)	22nd Warmest	Warmest since: 1956	2018
	Ties: 1943, 1992, 2021
Sep 1984–Aug 1988 48-Month	56.1°F (13.4°C)	55.3°F (12.9°C)	0.8°F (0.5°C)	96th Coolest	Coolest since: 1987	1980
	56.1°F (13.4°C)	55.3°F (12.9°C)	0.8°F (0.5°C)	29th Warmest	Warmest since: 1957	2019
	Ties: 1923, 1924, 1937, 1942, 1944, 1954, 2011
Sep 1983–Aug 1988 60-Month	55.7°F (13.2°C)	55.4°F (13.0°C)	0.3°F (0.2°C)	72nd Coolest	Coolest since: 1986	1906
	55.7°F (13.2°C)	55.4°F (13.0°C)	0.3°F (0.2°C)	52nd Warmest	Warmest since: 1987	2020
	Ties: 1924, 1944, 1946, 1994

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings