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, August 1955

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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
August 1955 1-Month	76.6°F (24.8°C)	73.4°F (23.0°C)	3.2°F (1.8°C)	115th Coolest	Coolest since: 1954	1915
	76.6°F (24.8°C)	73.4°F (23.0°C)	3.2°F (1.8°C)	14th Warmest	Warmest since: 1947	1947
	Ties: 1938
Jul–Aug 1955 2-Month	78.2°F (25.7°C)	74.5°F (23.6°C)	3.7°F (2.1°C)	125th Coolest	Coolest since: 1954	1915
Jul–Aug 1955 2-Month	78.2°F (25.7°C)	74.5°F (23.6°C)	3.7°F (2.1°C)	4th Warmest	Warmest since: 1936	1936
Jun–Aug 1955 3-Month	74.7°F (23.7°C)	73.5°F (23.1°C)	1.2°F (0.6°C)	97th Coolest	Coolest since: 1951	1915
	74.7°F (23.7°C)	73.5°F (23.1°C)	1.2°F (0.6°C)	32nd Warmest	Warmest since: 1954	1936
	Ties: 1941, 2007
May–Aug 1955 4-Month	72.1°F (22.3°C)	70.6°F (21.4°C)	1.5°F (0.9°C)	101st Coolest	Coolest since: 1954	1915
	72.1°F (22.3°C)	70.6°F (21.4°C)	1.5°F (0.9°C)	28th Warmest	Warmest since: 1953	1936
	Ties: 1952, 2022
Apr–Aug 1955 5-Month	69.3°F (20.7°C)	66.8°F (19.3°C)	2.5°F (1.4°C)	121st Coolest	Coolest since: 1954	1907
	69.3°F (20.7°C)	66.8°F (19.3°C)	2.5°F (1.4°C)	8th Warmest	Warmest since: 1936	1934
	Ties: 1921, 1977
Mar–Aug 1955 6-Month	64.4°F (18.0°C)	62.3°F (16.8°C)	2.1°F (1.2°C)	118th Coolest	Coolest since: 1954	1950, 1960
	64.4°F (18.0°C)	62.3°F (16.8°C)	2.1°F (1.2°C)	11th Warmest	Warmest since: 1936	2012
	Ties: 1988
Feb–Aug 1955 7-Month	59.4°F (15.2°C)	57.6°F (14.2°C)	1.8°F (1.0°C)	113th Coolest	Coolest since: 1953	1904
	59.4°F (15.2°C)	57.6°F (14.2°C)	1.8°F (1.0°C)	16th Warmest	Warmest since: 1954	2012
	Ties: 1925
Jan–Aug 1955 8-Month	55.3°F (12.9°C)	53.6°F (12.0°C)	1.7°F (0.9°C)	108th Coolest	Coolest since: 1952	1912
	55.3°F (12.9°C)	53.6°F (12.0°C)	1.7°F (0.9°C)	21st Warmest	Warmest since: 1954	2012
	Ties: 1946, 1952, 2007, 2020
Dec 1954–Aug 1955 9-Month	52.7°F (11.5°C)	50.9°F (10.5°C)	1.8°F (1.0°C)	106th Coolest	Coolest since: 1952	1904
	52.7°F (11.5°C)	50.9°F (10.5°C)	1.8°F (1.0°C)	22nd Warmest	Warmest since: 1954	2012
	Ties: 1933
Nov 1954–Aug 1955 10-Month	51.6°F (10.9°C)	49.9°F (9.9°C)	1.7°F (1.0°C)	105th Coolest	Coolest since: 1952	1904
Nov 1954–Aug 1955 10-Month	51.6°F (10.9°C)	49.9°F (9.9°C)	1.7°F (1.0°C)	23rd Warmest	Warmest since: 1954	2012
Oct 1954–Aug 1955 11-Month	51.9°F (11.1°C)	50.3°F (10.2°C)	1.6°F (0.9°C)	108th Coolest	Coolest since: 1953	1904
	51.9°F (11.1°C)	50.3°F (10.2°C)	1.6°F (0.9°C)	20th Warmest	Warmest since: 1954	2012
	Ties: 1934
Sep 1954–Aug 1955 12-Month	53.3°F (11.8°C)	51.6°F (10.9°C)	1.7°F (0.9°C)	110th Coolest	Coolest since: 1953	1904
	53.3°F (11.8°C)	51.6°F (10.9°C)	1.7°F (0.9°C)	18th Warmest	Warmest since: 1954	2012
	Ties: 1983, 2020
Mar 1954–Aug 1955 18-Month	56.7°F (13.7°C)	55.2°F (12.9°C)	1.5°F (0.8°C)	107th Coolest	Coolest since: 1953	1904
	56.7°F (13.7°C)	55.2°F (12.9°C)	1.5°F (0.8°C)	21st Warmest	Warmest since: 1954	2012
	Ties: 1992, 2007
Sep 1953–Aug 1955 24-Month	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F (1.1°C)	116th Coolest	Coolest since: 1954	1905
	53.6°F (12.0°C)	51.6°F (10.9°C)	2.0°F (1.1°C)	11th Warmest	Warmest since: 1933	2017
	Ties: 2007
Sep 1952–Aug 1955 36-Month	53.4°F (11.9°C)	51.6°F (10.9°C)	1.8°F (1.0°C)	118th Coolest	Coolest since: 1954	1979
	53.4°F (11.9°C)	51.6°F (10.9°C)	1.8°F (1.0°C)	8th Warmest	Warmest since: 1934	2018
	Ties: 1933, 2013
Sep 1951–Aug 1955 48-Month	53.0°F (11.7°C)	51.6°F (10.9°C)	1.4°F (0.8°C)	112th Coolest	Coolest since: 1954	1905
	53.0°F (11.7°C)	51.6°F (10.9°C)	1.4°F (0.8°C)	13th Warmest	Warmest since: 1935	2019
	Ties: 1933, 2005, 2006
Sep 1950–Aug 1955 60-Month	52.4°F (11.3°C)	51.6°F (10.9°C)	0.8°F (0.4°C)	94th Coolest	Coolest since: 1954	1906
	52.4°F (11.3°C)	51.6°F (10.9°C)	0.8°F (0.4°C)	30th Warmest	Warmest since: 1942	2020
	Ties: 1925, 1932, 1987, 1989, 1990, 1992, 2000

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings