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 1917

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
October 1917 1-Month	45.5°F (7.5°C)	54.6°F (12.6°C)	-9.1°F (-5.1°C)	2nd Coolest	Coolest since: 1917	1925
October 1917 1-Month	45.5°F (7.5°C)	54.6°F (12.6°C)	-9.1°F (-5.1°C)	127th Warmest	Warmest since: 1916	1963
Sep–Oct 1917 2-Month	54.8°F (12.7°C)	60.4°F (15.8°C)	-5.6°F (-3.1°C)	1st Coolest	Coolest since: 1917	1917
Sep–Oct 1917 2-Month	54.8°F (12.7°C)	60.4°F (15.8°C)	-5.6°F (-3.1°C)	128th Warmest	Warmest since: 1916	1897, 2016
Aug–Oct 1917 3-Month	60.2°F (15.7°C)	64.7°F (18.2°C)	-4.5°F (-2.5°C)	1st Coolest	Coolest since: 1917	1917
Aug–Oct 1917 3-Month	60.2°F (15.7°C)	64.7°F (18.2°C)	-4.5°F (-2.5°C)	128th Warmest	Warmest since: 1916	1947
Jul–Oct 1917 4-Month	63.8°F (17.7°C)	67.4°F (19.7°C)	-3.6°F (-2.0°C)	1st Coolest	Coolest since: 1917	1917
Jul–Oct 1917 4-Month	63.8°F (17.7°C)	67.4°F (19.7°C)	-3.6°F (-2.0°C)	128th Warmest	Warmest since: 1916	1936
Jun–Oct 1917 5-Month	64.6°F (18.1°C)	68.2°F (20.1°C)	-3.6°F (-2.0°C)	1st Coolest	Coolest since: 1917	1917
Jun–Oct 1917 5-Month	64.6°F (18.1°C)	68.2°F (20.1°C)	-3.6°F (-2.0°C)	128th Warmest	Warmest since: 1916	1936
May–Oct 1917 6-Month	63.2°F (17.3°C)	67.3°F (19.6°C)	-4.1°F (-2.3°C)	1st Coolest	Coolest since: 1917	1917
May–Oct 1917 6-Month	63.2°F (17.3°C)	67.3°F (19.6°C)	-4.1°F (-2.3°C)	128th Warmest	Warmest since: 1916	1936
Apr–Oct 1917 7-Month	61.1°F (16.2°C)	65.0°F (18.3°C)	-3.9°F (-2.1°C)	1st Coolest	Coolest since: 1917	1917
Apr–Oct 1917 7-Month	61.1°F (16.2°C)	65.0°F (18.3°C)	-3.9°F (-2.1°C)	128th Warmest	Warmest since: 1916	2010
Mar–Oct 1917 8-Month	58.6°F (14.8°C)	61.9°F (16.6°C)	-3.3°F (-1.8°C)	1st Coolest	Coolest since: 1917	1917
Mar–Oct 1917 8-Month	58.6°F (14.8°C)	61.9°F (16.6°C)	-3.3°F (-1.8°C)	128th Warmest	Warmest since: 1916	2012
Feb–Oct 1917 9-Month	54.6°F (12.6°C)	58.2°F (14.6°C)	-3.6°F (-2.0°C)	1st Coolest	Coolest since: 1917	1917
Feb–Oct 1917 9-Month	54.6°F (12.6°C)	58.2°F (14.6°C)	-3.6°F (-2.0°C)	128th Warmest	Warmest since: 1916	2012
Jan–Oct 1917 10-Month	51.8°F (11.0°C)	54.9°F (12.7°C)	-3.1°F (-1.7°C)	2nd Coolest	Coolest since: 1912	1904
	51.8°F (11.0°C)	54.9°F (12.7°C)	-3.1°F (-1.7°C)	127th Warmest	Warmest since: 1916	2012
	Ties: 1912, 1979
Dec 1916–Oct 1917 11-Month	49.5°F (9.7°C)	52.6°F (11.4°C)	-3.1°F (-1.7°C)	2nd Coolest	Coolest since: 1904	1904
Dec 1916–Oct 1917 11-Month	49.5°F (9.7°C)	52.6°F (11.4°C)	-3.1°F (-1.7°C)	126th Warmest	Warmest since: 1916	2012
Nov 1916–Oct 1917 12-Month	48.9°F (9.4°C)	51.6°F (10.9°C)	-2.7°F (-1.5°C)	2nd Coolest	Coolest since: 1912	1904
	48.9°F (9.4°C)	51.6°F (10.9°C)	-2.7°F (-1.5°C)	126th Warmest	Warmest since: 1916	2012
	Ties: 1912
May 1916–Oct 1917 18-Month	55.0°F (12.8°C)	56.8°F (13.8°C)	-1.8°F (-1.0°C)	3rd Coolest	Coolest since: 1904	1904
May 1916–Oct 1917 18-Month	55.0°F (12.8°C)	56.8°F (13.8°C)	-1.8°F (-1.0°C)	125th Warmest	Warmest since: 1916	2012
Nov 1915–Oct 1917 24-Month	50.2°F (10.1°C)	51.7°F (10.9°C)	-1.5°F (-0.8°C)	6th Coolest	Coolest since: 1905	1905
	50.2°F (10.1°C)	51.7°F (10.9°C)	-1.5°F (-0.8°C)	121st Warmest	Warmest since: 1916	2017
	Ties: 2015
Nov 1914–Oct 1917 36-Month	50.2°F (10.1°C)	51.6°F (10.9°C)	-1.4°F (-0.8°C)	7th Coolest	Coolest since: 1906	1904, 1979
Nov 1914–Oct 1917 36-Month	50.2°F (10.1°C)	51.6°F (10.9°C)	-1.4°F (-0.8°C)	119th Warmest	Warmest since: 1916	2018
Nov 1913–Oct 1917 48-Month	51.0°F (10.6°C)	51.6°F (10.9°C)	-0.6°F (-0.3°C)	17th Coolest	Coolest since: 1912	1905
	51.0°F (10.6°C)	51.6°F (10.9°C)	-0.6°F (-0.3°C)	108th Warmest	Warmest since: 1916	2019
	Ties: 1908, 1912, 1926, 1927, 1961, 1969, 1971
Nov 1912–Oct 1917 60-Month	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	30th Coolest	Coolest since: 1916	1905, 1906
	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	94th Warmest	Warmest since: 1916	2002, 2020
	Ties: 1912, 1913, 1916, 1952, 1965, 1966, 1967, 1968, 1983

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