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 1920

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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
October 1920 1-Month	59.2°F (15.1°C)	54.6°F (12.6°C)	4.6°F (2.5°C)	118th Coolest	Coolest since: 1919	1925
October 1920 1-Month	59.2°F (15.1°C)	54.6°F (12.6°C)	4.6°F (2.5°C)	11th Warmest	Warmest since: 1900	1963
Sep–Oct 1920 2-Month	63.9°F (17.7°C)	60.5°F (15.8°C)	3.4°F (1.9°C)	119th Coolest	Coolest since: 1919	1917
	63.9°F (17.7°C)	60.5°F (15.8°C)	3.4°F (1.9°C)	10th Warmest	Warmest since: 1900	1897
	Ties: 1939
Aug–Oct 1920 3-Month	66.4°F (19.1°C)	64.8°F (18.2°C)	1.6°F (0.9°C)	105th Coolest	Coolest since: 1919	1917
	66.4°F (19.1°C)	64.8°F (18.2°C)	1.6°F (0.9°C)	24th Warmest	Warmest since: 1900	1947
	Ties: 2018
Jul–Oct 1920 4-Month	68.3°F (20.2°C)	67.5°F (19.7°C)	0.8°F (0.5°C)	87th Coolest	Coolest since: 1918	1917
	68.3°F (20.2°C)	67.5°F (19.7°C)	0.8°F (0.5°C)	42nd Warmest	Warmest since: 1919	1936
	Ties: 1991
Jun–Oct 1920 5-Month	68.9°F (20.5°C)	68.2°F (20.1°C)	0.7°F (0.4°C)	82nd Coolest	Coolest since: 1918	1917
	68.9°F (20.5°C)	68.2°F (20.1°C)	0.7°F (0.4°C)	47th Warmest	Warmest since: 1919	1936
	Ties: 1984, 1986
May–Oct 1920 6-Month	67.4°F (19.7°C)	67.2°F (19.6°C)	0.2°F (0.1°C)	70th Coolest	Coolest since: 1918	1917
	67.4°F (19.7°C)	67.2°F (19.6°C)	0.2°F (0.1°C)	59th Warmest	Warmest since: 1919	1936
	Ties: 1906, 1918, 1975, 2013
Apr–Oct 1920 7-Month	64.4°F (18.0°C)	65.0°F (18.3°C)	-0.6°F (-0.3°C)	35th Coolest	Coolest since: 1918	1917
	64.4°F (18.0°C)	65.0°F (18.3°C)	-0.6°F (-0.3°C)	94th Warmest	Warmest since: 1919	2010
	Ties: 1918
Mar–Oct 1920 8-Month	61.4°F (16.3°C)	61.8°F (16.6°C)	-0.4°F (-0.3°C)	42nd Coolest	Coolest since: 1917	1917
	61.4°F (16.3°C)	61.8°F (16.6°C)	-0.4°F (-0.3°C)	87th Warmest	Warmest since: 1919	2012
	Ties: 1903, 1916, 1927, 1940, 1957
Feb–Oct 1920 9-Month	57.7°F (14.3°C)	58.2°F (14.6°C)	-0.5°F (-0.3°C)	41st Coolest	Coolest since: 1917	1917
	57.7°F (14.3°C)	58.2°F (14.6°C)	-0.5°F (-0.3°C)	88th Warmest	Warmest since: 1919	2012
	Ties: 1997, 2003
Jan–Oct 1920 10-Month	54.0°F (12.2°C)	54.9°F (12.7°C)	-0.9°F (-0.5°C)	26th Coolest	Coolest since: 1918	1904
	54.0°F (12.2°C)	54.9°F (12.7°C)	-0.9°F (-0.5°C)	103rd Warmest	Warmest since: 1919	2012
	Ties: 1923, 1972
Dec 1919–Oct 1920 11-Month	51.1°F (10.6°C)	52.6°F (11.4°C)	-1.5°F (-0.8°C)	13th Coolest	Coolest since: 1918	1904
	51.1°F (10.6°C)	52.6°F (11.4°C)	-1.5°F (-0.8°C)	115th Warmest	Warmest since: 1919	2012
	Ties: 1984
Nov 1919–Oct 1920 12-Month	50.1°F (10.1°C)	51.6°F (10.9°C)	-1.5°F (-0.8°C)	13th Coolest	Coolest since: 1918	1904
Nov 1919–Oct 1920 12-Month	50.1°F (10.1°C)	51.6°F (10.9°C)	-1.5°F (-0.8°C)	115th Warmest	Warmest since: 1919	2012
May 1919–Oct 1920 18-Month	56.1°F (13.4°C)	56.8°F (13.8°C)	-0.7°F (-0.4°C)	27th Coolest	Coolest since: 1918	1904
	56.1°F (13.4°C)	56.8°F (13.8°C)	-0.7°F (-0.4°C)	101st Warmest	Warmest since: 1919	2012
	Ties: 1907, 1962, 1975
Nov 1918–Oct 1920 24-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	71st Coolest	Coolest since: 1919	1905
	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	56th Warmest	Warmest since: 1915	2017
	Ties: 1898, 1911, 1915, 1941, 1957, 1976, 1990
Nov 1917–Oct 1920 36-Month	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	31st Coolest	Coolest since: 1919	1904, 1979
	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	95th Warmest	Warmest since: 1916	2018
	Ties: 1899, 1925, 1927, 1951, 1964, 1997
Nov 1916–Oct 1920 48-Month	50.6°F (10.3°C)	51.6°F (10.9°C)	-1.0°F (-0.6°C)	9th Coolest	Coolest since: 1918	1905
	50.6°F (10.3°C)	51.6°F (10.9°C)	-1.0°F (-0.6°C)	116th Warmest	Warmest since: 1919	2019
	Ties: 1982
Nov 1915–Oct 1920 60-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F (-0.5°C)	10th Coolest	Coolest since: 1919	1905, 1906
	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F (-0.5°C)	114th Warmest	Warmest since: 1919	2002, 2020
	Ties: 1918, 1919

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings