Statewide 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

Average Temperature Rankings, July 1989

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
July 1989 1-Month	75.5°F (24.2°C)	75.6°F (24.2°C)	-0.1°F (0.0°C)	71st Coolest	Coolest since: 1985	2009, 2014
	75.5°F (24.2°C)	75.6°F (24.2°C)	-0.1°F (0.0°C)	58th Warmest	Warmest since: 1988	1936
	Ties: 1910, 1928, 1982
Jun–Jul 1989 2-Month	73.0°F (22.8°C)	73.5°F (23.1°C)	-0.5°F (-0.3°C)	50th Coolest	Coolest since: 1985	1915, 1958
	73.0°F (22.8°C)	73.5°F (23.1°C)	-0.5°F (-0.3°C)	79th Warmest	Warmest since: 1988	1934
	Ties: 1896, 2007, 2015
May–Jul 1989 3-Month	68.5°F (20.3°C)	69.7°F (20.9°C)	-1.2°F (-0.6°C)	25th Coolest	Coolest since: 1976	1924
	68.5°F (20.3°C)	69.7°F (20.9°C)	-1.2°F (-0.6°C)	104th Warmest	Warmest since: 1988	1934
	Ties: 1920, 1950
Apr–Jul 1989 4-Month	64.2°F (17.9°C)	65.2°F (18.4°C)	-1.0°F (-0.5°C)	26th Coolest	Coolest since: 1983	1907
	64.2°F (17.9°C)	65.2°F (18.4°C)	-1.0°F (-0.5°C)	103rd Warmest	Warmest since: 1988	1934
	Ties: 1903, 1940, 1960, 1982, 1983
Mar–Jul 1989 5-Month	59.4°F (15.2°C)	60.1°F (15.6°C)	-0.7°F (-0.4°C)	40th Coolest	Coolest since: 1984	1960
	59.4°F (15.2°C)	60.1°F (15.6°C)	-0.7°F (-0.4°C)	89th Warmest	Warmest since: 1988	2012
	Ties: 1935, 1943, 1992, 2008
Feb–Jul 1989 6-Month	53.2°F (11.8°C)	55.0°F (12.8°C)	-1.8°F (-1.0°C)	17th Coolest	Coolest since: 1979	1947
	53.2°F (11.8°C)	55.0°F (12.8°C)	-1.8°F (-1.0°C)	112th Warmest	Warmest since: 1988	2012
	Ties: 1923, 1996
Jan–Jul 1989 7-Month	50.6°F (10.3°C)	50.7°F (10.4°C)	-0.1°F (-0.1°C)	61st Coolest	Coolest since: 1985	1912
	50.6°F (10.3°C)	50.7°F (10.4°C)	-0.1°F (-0.1°C)	68th Warmest	Warmest since: 1988	2012
	Ties: 1910, 2009
Dec 1988–Jul 1989 8-Month	48.2°F (9.0°C)	48.1°F (8.9°C)	0.1°F (0.1°C)	68th Coolest	Coolest since: 1984	1904
Dec 1988–Jul 1989 8-Month	48.2°F (9.0°C)	48.1°F (8.9°C)	0.1°F (0.1°C)	60th Warmest	Warmest since: 1988	2012
Nov 1988–Jul 1989 9-Month	47.5°F (8.6°C)	47.2°F (8.4°C)	0.3°F (0.2°C)	67th Coolest	Coolest since: 1984	1904
Nov 1988–Jul 1989 9-Month	47.5°F (8.6°C)	47.2°F (8.4°C)	0.3°F (0.2°C)	61st Warmest	Warmest since: 1988	2012
Oct 1988–Jul 1989 10-Month	47.6°F (8.7°C)	48.0°F (8.9°C)	-0.4°F (-0.2°C)	45th Coolest	Coolest since: 1984	1904
	47.6°F (8.7°C)	48.0°F (8.9°C)	-0.4°F (-0.2°C)	83rd Warmest	Warmest since: 1988	2012
	Ties: 1956, 1980, 1993, 2001, 2009
Sep 1988–Jul 1989 11-Month	49.4°F (9.7°C)	49.7°F (9.8°C)	-0.3°F (-0.1°C)	51st Coolest	Coolest since: 1984	1904
	49.4°F (9.7°C)	49.7°F (9.8°C)	-0.3°F (-0.1°C)	77th Warmest	Warmest since: 1988	2012
	Ties: 1903, 1937, 1950, 2009
Aug 1988–Jul 1989 12-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	66th Coolest	Coolest since: 1984	1904
	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	62nd Warmest	Warmest since: 1988	2012
	Ties: 1909, 1944, 1952, 2013
Feb 1988–Jul 1989 18-Month	53.1°F (11.7°C)	52.7°F (11.5°C)	0.4°F (0.2°C)	78th Coolest	Coolest since: 1985	1918
	53.1°F (11.7°C)	52.7°F (11.5°C)	0.4°F (0.2°C)	50th Warmest	Warmest since: 1988	2012
	Ties: 1911
Aug 1987–Jul 1989 24-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	78th Coolest	Coolest since: 1985	1905
	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	49th Warmest	Warmest since: 1988	2017
	Ties: 1901, 1973, 1976, 1998
Aug 1986–Jul 1989 36-Month	52.6°F (11.4°C)	51.6°F (10.9°C)	1.0°F (0.5°C)	101st Coolest	Coolest since: 1987	1979
	52.6°F (11.4°C)	51.6°F (10.9°C)	1.0°F (0.5°C)	25th Warmest	Warmest since: 1988	2018
	Ties: 1935, 1939, 1987, 1991, 2020, 2021
Aug 1985–Jul 1989 48-Month	52.5°F (11.4°C)	51.6°F (10.9°C)	0.9°F (0.5°C)	97th Coolest	Coolest since: 1988	1905, 1980
	52.5°F (11.4°C)	51.6°F (10.9°C)	0.9°F (0.5°C)	28th Warmest	Warmest since: 1988	2019
	Ties: 1924, 1988, 1991, 2004, 2014
Aug 1984–Jul 1989 60-Month	52.4°F (11.3°C)	51.6°F (10.9°C)	0.8°F (0.4°C)	92nd Coolest	Coolest since: 1988	1906
	52.4°F (11.3°C)	51.6°F (10.9°C)	0.8°F (0.4°C)	32nd Warmest	Warmest since: 1957	2020
	Ties: 1925, 1990

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on April 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings