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 1966

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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 1966 1-Month	51.8°F (11.0°C)	54.6°F (12.6°C)	-2.8°F (-1.6°C)	19th Coolest	Coolest since: 1964	1925
	51.8°F (11.0°C)	54.6°F (12.6°C)	-2.8°F (-1.6°C)	110th Warmest	Warmest since: 1965	1963
	Ties: 1937, 1993
Sep–Oct 1966 2-Month	57.6°F (14.2°C)	60.5°F (15.8°C)	-2.9°F (-1.6°C)	9th Coolest	Coolest since: 1952	1917
Sep–Oct 1966 2-Month	57.6°F (14.2°C)	60.5°F (15.8°C)	-2.9°F (-1.6°C)	120th Warmest	Warmest since: 1965	1897
Aug–Oct 1966 3-Month	62.0°F (16.7°C)	64.8°F (18.2°C)	-2.8°F (-1.5°C)	4th Coolest	Coolest since: 1917	1917
Aug–Oct 1966 3-Month	62.0°F (16.7°C)	64.8°F (18.2°C)	-2.8°F (-1.5°C)	125th Warmest	Warmest since: 1965	1947
Jul–Oct 1966 4-Month	66.1°F (18.9°C)	67.5°F (19.7°C)	-1.4°F (-0.8°C)	17th Coolest	Coolest since: 1945	1917
	66.1°F (18.9°C)	67.5°F (19.7°C)	-1.4°F (-0.8°C)	112th Warmest	Warmest since: 1965	1936
	Ties: 1945, 2004
Jun–Oct 1966 5-Month	67.1°F (19.5°C)	68.2°F (20.1°C)	-1.1°F (-0.6°C)	24th Coolest	Coolest since: 1958	1917
	67.1°F (19.5°C)	68.2°F (20.1°C)	-1.1°F (-0.6°C)	105th Warmest	Warmest since: 1965	1936
	Ties: 1993
May–Oct 1966 6-Month	65.6°F (18.7°C)	67.2°F (19.6°C)	-1.6°F (-0.9°C)	13th Coolest	Coolest since: 1945	1917
May–Oct 1966 6-Month	65.6°F (18.7°C)	67.2°F (19.6°C)	-1.6°F (-0.9°C)	116th Warmest	Warmest since: 1965	1936
Apr–Oct 1966 7-Month	63.2°F (17.3°C)	65.0°F (18.3°C)	-1.8°F (-1.0°C)	9th Coolest	Coolest since: 1945	1917
Apr–Oct 1966 7-Month	63.2°F (17.3°C)	65.0°F (18.3°C)	-1.8°F (-1.0°C)	120th Warmest	Warmest since: 1965	2010
Mar–Oct 1966 8-Month	60.5°F (15.8°C)	61.8°F (16.6°C)	-1.3°F (-0.8°C)	15th Coolest	Coolest since: 1960	1917
	60.5°F (15.8°C)	61.8°F (16.6°C)	-1.3°F (-0.8°C)	114th Warmest	Warmest since: 1965	2012
	Ties: 1912, 1928
Feb–Oct 1966 9-Month	57.0°F (13.9°C)	58.2°F (14.6°C)	-1.2°F (-0.7°C)	22nd Coolest	Coolest since: 1960	1917
Feb–Oct 1966 9-Month	57.0°F (13.9°C)	58.2°F (14.6°C)	-1.2°F (-0.7°C)	107th Warmest	Warmest since: 1965	2012
Jan–Oct 1966 10-Month	53.4°F (11.9°C)	54.9°F (12.7°C)	-1.5°F (-0.8°C)	12th Coolest	Coolest since: 1958	1904
	53.4°F (11.9°C)	54.9°F (12.7°C)	-1.5°F (-0.8°C)	117th Warmest	Warmest since: 1965	2012
	Ties: 1902, 1929, 1940
Dec 1965–Oct 1966 11-Month	51.9°F (11.1°C)	52.6°F (11.4°C)	-0.7°F (-0.3°C)	33rd Coolest	Coolest since: 1965	1904
	51.9°F (11.1°C)	52.6°F (11.4°C)	-0.7°F (-0.3°C)	95th Warmest	Warmest since: 1964	2012
	Ties: 1928, 1961, 1962
Nov 1965–Oct 1966 12-Month	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	40th Coolest	Coolest since: 1965	1904
	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	88th Warmest	Warmest since: 1965	2012
	Ties: 1928, 1936, 1937, 1965, 2003
May 1965–Oct 1966 18-Month	56.6°F (13.7°C)	56.8°F (13.8°C)	-0.2°F (-0.1°C)	46th Coolest	Coolest since: 1962	1904
	56.6°F (13.7°C)	56.8°F (13.8°C)	-0.2°F (-0.1°C)	82nd Warmest	Warmest since: 1965	2012
	Ties: 1906, 1909, 1946, 1959, 1984, 2001
Nov 1964–Oct 1966 24-Month	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	36th Coolest	Coolest since: 1963	1905
	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	91st Warmest	Warmest since: 1965	2017
	Ties: 1908, 1925, 1926, 1937, 1958, 1959, 1971, 1985
Nov 1963–Oct 1966 36-Month	51.4°F (10.8°C)	51.6°F (10.9°C)	-0.2°F (-0.1°C)	47th Coolest	Coolest since: 1965	1904, 1979
	51.4°F (10.8°C)	51.6°F (10.9°C)	-0.2°F (-0.1°C)	79th Warmest	Warmest since: 1959	2018
	Ties: 1914, 1945, 1958, 1959, 1977, 1996
Nov 1962–Oct 1966 48-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	37th Coolest	Coolest since: 1965	1905
	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	88th Warmest	Warmest since: 1959	2019
	Ties: 1901, 1909, 1910, 1930, 1952, 1967, 1996
Nov 1961–Oct 1966 60-Month	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	30th Coolest	Coolest since: 1965	1905, 1906
	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	94th Warmest	Warmest since: 1965	2002, 2020
	Ties: 1912, 1913, 1916, 1917, 1952, 1965, 1967, 1968, 1983

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 3, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings