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, October 1990

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
October 1990 1-Month	52.8°F (11.6°C)	54.6°F (12.6°C)	-1.8°F (-1.0°C)	34th Coolest	Coolest since: 1988	1925
	52.8°F (11.6°C)	54.6°F (12.6°C)	-1.8°F (-1.0°C)	95th Warmest	Warmest since: 1989	1963
	Ties: 1906, 1969
Sep–Oct 1990 2-Month	60.4°F (15.8°C)	60.5°F (15.8°C)	-0.1°F (0.0°C)	66th Coolest	Coolest since: 1989	1917
	60.4°F (15.8°C)	60.5°F (15.8°C)	-0.1°F (0.0°C)	63rd Warmest	Warmest since: 1986	1897, 2016
	Ties: 1959, 1962
Aug–Oct 1990 3-Month	64.4°F (18.0°C)	64.8°F (18.2°C)	-0.4°F (-0.2°C)	52nd Coolest	Coolest since: 1989	1917
	64.4°F (18.0°C)	64.8°F (18.2°C)	-0.4°F (-0.2°C)	77th Warmest	Warmest since: 1988	1947
	Ties: 1898, 2008
Jul–Oct 1990 4-Month	66.8°F (19.3°C)	67.4°F (19.7°C)	-0.6°F (-0.4°C)	42nd Coolest	Coolest since: 1989	1917
	66.8°F (19.3°C)	67.4°F (19.7°C)	-0.6°F (-0.4°C)	87th Warmest	Warmest since: 1989	1936
	Ties: 1942, 1969, 1989, 1997
Jun–Oct 1990 5-Month	67.8°F (19.9°C)	68.2°F (20.1°C)	-0.4°F (-0.2°C)	47th Coolest	Coolest since: 1989	1917
	67.8°F (19.9°C)	68.2°F (20.1°C)	-0.4°F (-0.2°C)	82nd Warmest	Warmest since: 1988	1936
	Ties: 1942, 1964, 1975
May–Oct 1990 6-Month	66.4°F (19.1°C)	67.3°F (19.6°C)	-0.9°F (-0.5°C)	27th Coolest	Coolest since: 1989	1917
	66.4°F (19.1°C)	67.3°F (19.6°C)	-0.9°F (-0.5°C)	102nd Warmest	Warmest since: 1988	1936
	Ties: 1902, 1925, 1950, 1961, 1969, 1972, 1993, 1996
Apr–Oct 1990 7-Month	64.1°F (17.8°C)	64.9°F (18.3°C)	-0.8°F (-0.5°C)	28th Coolest	Coolest since: 1989	1917
	64.1°F (17.8°C)	64.9°F (18.3°C)	-0.8°F (-0.5°C)	101st Warmest	Warmest since: 1989	2010
	Ties: 1910, 1927, 1972, 1979, 1989
Mar–Oct 1990 8-Month	61.7°F (16.5°C)	61.8°F (16.6°C)	-0.1°F (-0.1°C)	55th Coolest	Coolest since: 1989	1917
Mar–Oct 1990 8-Month	61.7°F (16.5°C)	61.8°F (16.6°C)	-0.1°F (-0.1°C)	74th Warmest	Warmest since: 1988	2012
Feb–Oct 1990 9-Month	58.8°F (14.9°C)	58.2°F (14.6°C)	0.6°F (0.3°C)	86th Coolest	Coolest since: 1989	1917
	58.8°F (14.9°C)	58.2°F (14.6°C)	0.6°F (0.3°C)	43rd Warmest	Warmest since: 1987	2012
	Ties: 1995, 2001, 2022
Jan–Oct 1990 10-Month	56.6°F (13.7°C)	55.0°F (12.8°C)	1.6°F (0.9°C)	108th Coolest	Coolest since: 1989	1904
Jan–Oct 1990 10-Month	56.6°F (13.7°C)	55.0°F (12.8°C)	1.6°F (0.9°C)	21st Warmest	Warmest since: 1987	2012
Dec 1989–Oct 1990 11-Month	53.0°F (11.7°C)	52.6°F (11.4°C)	0.4°F (0.3°C)	75th Coolest	Coolest since: 1989	1904
Dec 1989–Oct 1990 11-Month	53.0°F (11.7°C)	52.6°F (11.4°C)	0.4°F (0.3°C)	53rd Warmest	Warmest since: 1988	2012
Nov 1989–Oct 1990 12-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	79th Coolest	Coolest since: 1989	1904
	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	49th Warmest	Warmest since: 1988	2012
	Ties: 1908, 1930, 1935, 2011
May 1989–Oct 1990 18-Month	56.8°F (13.8°C)	56.9°F (13.8°C)	-0.1°F (0.0°C)	58th Coolest	Coolest since: 1984	1904
	56.8°F (13.8°C)	56.9°F (13.8°C)	-0.1°F (0.0°C)	70th Warmest	Warmest since: 1989	2012
	Ties: 1896, 1911, 1948
Nov 1988–Oct 1990 24-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	71st Coolest	Coolest since: 1985	1905
	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	56th Warmest	Warmest since: 1989	2017
	Ties: 1898, 1911, 1915, 1920, 1941, 1957, 1976
Nov 1987–Oct 1990 36-Month	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F (0.3°C)	84th Coolest	Coolest since: 1986	1904, 1979
	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F (0.3°C)	42nd Warmest	Warmest since: 1989	2018
	Ties: 1931, 2009, 2011
Nov 1986–Oct 1990 48-Month	52.4°F (11.3°C)	51.6°F (10.9°C)	0.8°F (0.4°C)	96th Coolest	Coolest since: 1989	1905
	52.4°F (11.3°C)	51.6°F (10.9°C)	0.8°F (0.4°C)	29th Warmest	Warmest since: 1989	2019
	Ties: 1989, 1992, 2009, 2014
Nov 1985–Oct 1990 60-Month	52.4°F (11.3°C)	51.6°F (10.9°C)	0.8°F (0.4°C)	92nd Coolest	Coolest since: 1989	1905, 1906
	52.4°F (11.3°C)	51.6°F (10.9°C)	0.8°F (0.4°C)	32nd Warmest	Warmest since: 1957	2002, 2020
	Ties: 1955, 2011

Citing This Page

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