Statewide Rankings

Statewide Data Info
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 2011

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
July 2011
1-Month		79.9°F
(26.6°C)		75.6°F
(24.2°C)		4.3°F
(2.4°C)		123rd Coolest
Coolest since:
2009, 2014
6th Warmest
Warmest since:
1936
Jun–Jul 2011
2-Month		76.4°F
(24.7°C)		73.5°F
(23.1°C)		2.9°F
(1.6°C)		117th Coolest
Coolest since:
1915, 1958
12th Warmest
Warmest since:
1934
May–Jul 2011
3-Month		71.6°F
(22.0°C)		69.7°F
(20.9°C)		1.9°F
(1.1°C)		109th Coolest
Coolest since:
1924
20th Warmest
Warmest since:
1934
Ties: 1896, 1941, 1986, 1999
Apr–Jul 2011
4-Month		67.0°F
(19.4°C)		65.2°F
(18.4°C)		1.8°F
(1.0°C)		111th Coolest
Coolest since:
1907
18th Warmest
Warmest since:
1934
Ties: 1952, 2001, 2006
Mar–Jul 2011
5-Month		61.9°F
(16.6°C)		60.1°F
(15.6°C)		1.8°F
(1.0°C)		115th Coolest
Coolest since:
1960
14th Warmest
Warmest since:
2012
Ties: 1955, 2006
Feb–Jul 2011
6-Month		56.6°F
(13.7°C)		55.0°F
(12.8°C)		1.6°F
(0.9°C)		106th Coolest
Coolest since:
1947
23rd Warmest
Warmest since:
2012
Ties: 1953, 1955
Jan–Jul 2011
7-Month		51.8°F
(11.0°C)		50.7°F
(10.4°C)		1.1°F
(0.6°C)		89th Coolest
Coolest since:
1912
40th Warmest
Warmest since:
2012
Ties: 2004
Dec 2010–Jul 2011
8-Month		48.3°F
(9.1°C)		48.1°F
(8.9°C)		0.2°F
(0.2°C)		70th Coolest
Coolest since:
1904
58th Warmest
Warmest since:
2012
Ties: 1898
Nov 2010–Jul 2011
9-Month		47.8°F
(8.8°C)		47.2°F
(8.4°C)		0.6°F
(0.4°C)		78th Coolest
Coolest since:
1904
50th Warmest
Warmest since:
2012
Ties: 1944, 2013
Oct 2010–Jul 2011
10-Month		48.7°F
(9.3°C)		48.0°F
(8.9°C)		0.7°F
(0.4°C)		82nd Coolest
Coolest since:
1904
46th Warmest
Warmest since:
2012
Ties: 1952, 1972, 1990
Sep 2010–Jul 2011
11-Month		50.4°F
(10.2°C)		49.7°F
(9.8°C)		0.7°F
(0.4°C)		84th Coolest
Coolest since:
1904
44th Warmest
Warmest since:
2012
Ties: 1911, 1933
Aug 2010–Jul 2011
12-Month		52.6°F
(11.4°C)		51.6°F
(10.9°C)		1.0°F
(0.5°C)		94th Coolest
Coolest since:
1904
34th Warmest
Warmest since:
2012
Ties: 1901, 1941, 1983
Feb 2010–Jul 2011
18-Month		54.2°F
(12.3°C)		52.7°F
(11.5°C)		1.5°F
(0.8°C)		105th Coolest
Coolest since:
1918
23rd Warmest
Warmest since:
2012
Aug 2009–Jul 2011
24-Month		52.5°F
(11.4°C)		51.6°F
(10.9°C)		0.9°F
(0.5°C)		96th Coolest
Coolest since:
1905
31st Warmest
Warmest since:
2017
Ties: 1914, 1956, 2001
Aug 2008–Jul 2011
36-Month		52.1°F
(11.2°C)		51.6°F
(10.9°C)		0.5°F
(0.3°C)		79th Coolest
Coolest since:
1979
47th Warmest
Warmest since:
2018
Ties: 2010
Aug 2007–Jul 2011
48-Month		52.2°F
(11.2°C)		51.6°F
(10.9°C)		0.6°F
(0.3°C)		85th Coolest
Coolest since:
1905, 1980
40th Warmest
Warmest since:
2019
Ties: 1940, 1987, 1999
Aug 2006–Jul 2011
60-Month		52.3°F
(11.3°C)		51.6°F
(10.9°C)		0.7°F
(0.4°C)		89th Coolest
Coolest since:
1906
35th Warmest
Warmest since:
2020
Ties: 1932, 1941, 1943, 1958, 1987, 1999

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