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 2015

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
July 2015
1-Month		74.2°F
(23.4°C)		75.6°F
(24.2°C)		-1.4°F
(-0.8°C)		35th Coolest
Coolest since:
2009, 2014
94th Warmest
Warmest since:
1936
Ties: 1922, 1968, 1990
Jun–Jul 2015
2-Month		73.0°F
(22.8°C)		73.5°F
(23.1°C)		-0.5°F
(-0.3°C)		50th Coolest
Coolest since:
1915, 1958
79th Warmest
Warmest since:
1934
Ties: 1896, 1989, 2007
May–Jul 2015
3-Month		70.3°F
(21.3°C)		69.7°F
(20.9°C)		0.6°F
(0.4°C)		81st Coolest
Coolest since:
1924
48th Warmest
Warmest since:
1934
Ties: 1918, 2006, 2019
Apr–Jul 2015
4-Month		66.3°F
(19.1°C)		65.2°F
(18.4°C)		1.1°F
(0.7°C)		93rd Coolest
Coolest since:
1907
36th Warmest
Warmest since:
1934
Ties: 1925
Mar–Jul 2015
5-Month		60.7°F
(15.9°C)		60.1°F
(15.6°C)		0.6°F
(0.3°C)		77th Coolest
Coolest since:
1960
52nd Warmest
Warmest since:
2012
Ties: 1901, 1918
Feb–Jul 2015
6-Month		53.8°F
(12.1°C)		55.0°F
(12.8°C)		-1.2°F
(-0.7°C)		28th Coolest
Coolest since:
1947
101st Warmest
Warmest since:
2012
Ties: 1937, 1940, 2013
Jan–Jul 2015
7-Month		49.8°F
(9.9°C)		50.7°F
(10.4°C)		-0.9°F
(-0.5°C)		35th Coolest
Coolest since:
1912
94th Warmest
Warmest since:
2012
Ties: 1897, 1906, 1915, 1937, 1950, 1961, 1997
Dec 2014–Jul 2015
8-Month		47.8°F
(8.8°C)		48.1°F
(8.9°C)		-0.3°F
(-0.1°C)		51st Coolest
Coolest since:
1904
77th Warmest
Warmest since:
2012
Ties: 1897, 1937, 1968, 1977
Nov 2014–Jul 2015
9-Month		46.3°F
(7.9°C)		47.2°F
(8.4°C)		-0.9°F
(-0.5°C)		28th Coolest
Coolest since:
1904
100th Warmest
Warmest since:
2012
Ties: 1907, 1961, 1969
Oct 2014–Jul 2015
10-Month		47.1°F
(8.4°C)		48.0°F
(8.9°C)		-0.9°F
(-0.5°C)		27th Coolest
Coolest since:
1904
101st Warmest
Warmest since:
2012
Ties: 1915, 1969
Sep 2014–Jul 2015
11-Month		48.7°F
(9.3°C)		49.7°F
(9.8°C)		-1.0°F
(-0.5°C)		27th Coolest
Coolest since:
1904
101st Warmest
Warmest since:
2012
Ties: 1968
Aug 2014–Jul 2015
12-Month		50.8°F
(10.4°C)		51.6°F
(10.9°C)		-0.8°F
(-0.5°C)		29th Coolest
Coolest since:
1904
99th Warmest
Warmest since:
2012
Ties: 1940
Feb 2014–Jul 2015
18-Month		51.3°F
(10.7°C)		52.7°F
(11.5°C)		-1.4°F
(-0.8°C)		9th Coolest
Coolest since:
1918
119th Warmest
Warmest since:
2012
Aug 2013–Jul 2015
24-Month		50.1°F
(10.1°C)		51.6°F
(10.9°C)		-1.5°F
(-0.8°C)		6th Coolest
Coolest since:
1905
121st Warmest
Warmest since:
2017
Aug 2012–Jul 2015
36-Month		50.7°F
(10.4°C)		51.6°F
(10.9°C)		-0.9°F
(-0.5°C)		9th Coolest
Coolest since:
1979
117th Warmest
Warmest since:
2018
Ties: 1907, 1912, 1917, 1919, 1920, 1960
Aug 2011–Jul 2015
48-Month		52.1°F
(11.2°C)		51.6°F
(10.9°C)		0.5°F
(0.3°C)		81st Coolest
Coolest since:
1905, 1980
44th Warmest
Warmest since:
2019
Ties: 1936, 1939, 1949, 1976
Aug 2010–Jul 2015
60-Month		52.2°F
(11.2°C)		51.6°F
(10.9°C)		0.6°F
(0.3°C)		82nd Coolest
Coolest since:
1906
42nd Warmest
Warmest since:
2020
Ties: 1955, 1976, 1988, 1993, 1995

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