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, July 1939

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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
July 1939 1-Month	75.8°F (24.3°C)	75.6°F (24.2°C)	0.2°F (0.1°C)	78th Coolest	Coolest since: 1937	2009, 2014
	75.8°F (24.3°C)	75.6°F (24.2°C)	0.2°F (0.1°C)	51st Warmest	Warmest since: 1938	1936
	Ties: 1911
Jun–Jul 1939 2-Month	74.3°F (23.5°C)	73.5°F (23.1°C)	0.8°F (0.4°C)	86th Coolest	Coolest since: 1938	1915, 1958
	74.3°F (23.5°C)	73.5°F (23.1°C)	0.8°F (0.4°C)	43rd Warmest	Warmest since: 1936	1934
	Ties: 2006
May–Jul 1939 3-Month	71.2°F (21.8°C)	69.7°F (20.9°C)	1.5°F (0.9°C)	100th Coolest	Coolest since: 1938	1924
	71.2°F (21.8°C)	69.7°F (20.9°C)	1.5°F (0.9°C)	29th Warmest	Warmest since: 1936	1934
	Ties: 1913, 2007
Apr–Jul 1939 4-Month	65.5°F (18.6°C)	65.2°F (18.4°C)	0.3°F (0.2°C)	69th Coolest	Coolest since: 1938	1907
Apr–Jul 1939 4-Month	65.5°F (18.6°C)	65.2°F (18.4°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 1936	1934
Mar–Jul 1939 5-Month	60.8°F (16.0°C)	60.1°F (15.6°C)	0.7°F (0.4°C)	79th Coolest	Coolest since: 1937	1960
	60.8°F (16.0°C)	60.1°F (15.6°C)	0.7°F (0.4°C)	50th Warmest	Warmest since: 1938	2012
	Ties: 1981
Feb–Jul 1939 6-Month	55.4°F (13.0°C)	55.0°F (12.8°C)	0.4°F (0.2°C)	73rd Coolest	Coolest since: 1937	1947
	55.4°F (13.0°C)	55.0°F (12.8°C)	0.4°F (0.2°C)	56th Warmest	Warmest since: 1938	2012
	Ties: 1941, 1983
Jan–Jul 1939 7-Month	52.1°F (11.2°C)	50.7°F (10.4°C)	1.4°F (0.8°C)	93rd Coolest	Coolest since: 1937	1912
	52.1°F (11.2°C)	50.7°F (10.4°C)	1.4°F (0.8°C)	36th Warmest	Warmest since: 1938	2012
	Ties: 1973
Dec 1938–Jul 1939 8-Month	49.4°F (9.7°C)	48.1°F (8.9°C)	1.3°F (0.8°C)	92nd Coolest	Coolest since: 1937	1904
	49.4°F (9.7°C)	48.1°F (8.9°C)	1.3°F (0.8°C)	36th Warmest	Warmest since: 1938	2012
	Ties: 1914, 1941
Nov 1938–Jul 1939 9-Month	48.7°F (9.3°C)	47.2°F (8.4°C)	1.5°F (0.9°C)	97th Coolest	Coolest since: 1938	1904
	48.7°F (9.3°C)	47.2°F (8.4°C)	1.5°F (0.9°C)	31st Warmest	Warmest since: 1934	2012
	Ties: 2022
Oct 1938–Jul 1939 10-Month	49.7°F (9.8°C)	48.0°F (8.9°C)	1.7°F (0.9°C)	110th Coolest	Coolest since: 1938	1904
	49.7°F (9.8°C)	48.0°F (8.9°C)	1.7°F (0.9°C)	18th Warmest	Warmest since: 1934	2012
	Ties: 1934, 1942
Sep 1938–Jul 1939 11-Month	51.4°F (10.8°C)	49.7°F (9.8°C)	1.7°F (1.0°C)	110th Coolest	Coolest since: 1938	1904
	51.4°F (10.8°C)	49.7°F (9.8°C)	1.7°F (1.0°C)	18th Warmest	Warmest since: 1934	2012
	Ties: 1942
Aug 1938–Jul 1939 12-Month	53.5°F (11.9°C)	51.6°F (10.9°C)	1.9°F (1.0°C)	114th Coolest	Coolest since: 1938	1904
	53.5°F (11.9°C)	51.6°F (10.9°C)	1.9°F (1.0°C)	14th Warmest	Warmest since: 1934	2012
	Ties: 1934, 1998
Feb 1938–Jul 1939 18-Month	54.9°F (12.7°C)	52.7°F (11.5°C)	2.2°F (1.2°C)	120th Coolest	Coolest since: 1938	1918
	54.9°F (12.7°C)	52.7°F (11.5°C)	2.2°F (1.2°C)	8th Warmest	Warmest since: 1932	2012
	Ties: 2000
Aug 1937–Jul 1939 24-Month	53.0°F (11.7°C)	51.6°F (10.9°C)	1.4°F (0.8°C)	111th Coolest	Coolest since: 1938	1905
	53.0°F (11.7°C)	51.6°F (10.9°C)	1.4°F (0.8°C)	16th Warmest	Warmest since: 1933	2017
	Ties: 1942, 2022
Aug 1936–Jul 1939 36-Month	52.6°F (11.4°C)	51.6°F (10.9°C)	1.0°F (0.5°C)	101st Coolest	Coolest since: 1938	1979
	52.6°F (11.4°C)	51.6°F (10.9°C)	1.0°F (0.5°C)	25th Warmest	Warmest since: 1935	2018
	Ties: 1935, 1987, 1989, 1991, 2020, 2021
Aug 1935–Jul 1939 48-Month	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F (0.3°C)	81st Coolest	Coolest since: 1938	1905, 1980
	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F (0.3°C)	44th Warmest	Warmest since: 1936	2019
	Ties: 1936, 1949, 1976, 2015
Aug 1934–Jul 1939 60-Month	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F (0.3°C)	76th Coolest	Coolest since: 1938	1906
	52.1°F (11.2°C)	51.6°F (10.9°C)	0.5°F (0.3°C)	48th Warmest	Warmest since: 1938	2020
	Ties: 1937, 1938, 1945

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings