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, August 2016

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
August 2016
1-Month		75.7°F
(24.3°C)		73.4°F
(23.0°C)		2.3°F
(1.3°C)		110th Coolest
Coolest since:
1915
19th Warmest
Warmest since:
1947
Jul–Aug 2016
2-Month		75.7°F
(24.3°C)		74.5°F
(23.6°C)		1.2°F
(0.7°C)		95th Coolest
Coolest since:
1915
34th Warmest
Warmest since:
1936
Jun–Aug 2016
3-Month		75.4°F
(24.1°C)		73.5°F
(23.1°C)		1.9°F
(1.0°C)		107th Coolest
Coolest since:
1915
22nd Warmest
Warmest since:
1936
Ties: 1987, 1991
May–Aug 2016
4-Month		72.0°F
(22.2°C)		70.6°F
(21.4°C)		1.4°F
(0.8°C)		98th Coolest
Coolest since:
1915
31st Warmest
Warmest since:
1936
Ties: 1930, 2005
Apr–Aug 2016
5-Month		68.2°F
(20.1°C)		66.8°F
(19.3°C)		1.4°F
(0.8°C)		103rd Coolest
Coolest since:
1907
26th Warmest
Warmest since:
1934
Ties: 1999
Mar–Aug 2016
6-Month		64.7°F
(18.2°C)		62.3°F
(16.8°C)		2.4°F
(1.4°C)		119th Coolest
Coolest since:
1950, 1960
10th Warmest
Warmest since:
2012
Feb–Aug 2016
7-Month		60.3°F
(15.7°C)		57.6°F
(14.2°C)		2.7°F
(1.5°C)		123rd Coolest
Coolest since:
1904
6th Warmest
Warmest since:
2012
Ties: 1938, 2010, 2017
Jan–Aug 2016
8-Month		56.1°F
(13.4°C)		53.6°F
(12.0°C)		2.5°F
(1.4°C)		121st Coolest
Coolest since:
1912
8th Warmest
Warmest since:
2012
Ties: 1938
Dec 2015–Aug 2016
9-Month		54.5°F
(12.5°C)		50.9°F
(10.5°C)		3.6°F
(2.0°C)		125th Coolest
Coolest since:
1904
3rd Warmest
Warmest since:
2012
Nov 2015–Aug 2016
10-Month		53.7°F
(12.1°C)		49.9°F
(9.9°C)		3.8°F
(2.2°C)		126th Coolest
Coolest since:
1904
2nd Warmest
Warmest since:
2012
Oct 2015–Aug 2016
11-Month		53.9°F
(12.2°C)		50.3°F
(10.2°C)		3.6°F
(2.0°C)		126th Coolest
Coolest since:
1904
2nd Warmest
Warmest since:
2012
Sep 2015–Aug 2016
12-Month		55.3°F
(12.9°C)		51.6°F
(10.9°C)		3.7°F
(2.0°C)		126th Coolest
Coolest since:
1904
2nd Warmest
Warmest since:
2012
Mar 2015–Aug 2016
18-Month		57.7°F
(14.3°C)		55.2°F
(12.9°C)		2.5°F
(1.4°C)		125th Coolest
Coolest since:
1904
3rd Warmest
Warmest since:
2012
Sep 2014–Aug 2016
24-Month		53.0°F
(11.7°C)		51.6°F
(10.9°C)		1.4°F
(0.8°C)		108th Coolest
Coolest since:
1905
19th Warmest
Warmest since:
2017
Ties: 1942, 1991, 2021
Sep 2013–Aug 2016
36-Month		51.8°F
(11.0°C)		51.6°F
(10.9°C)		0.2°F
(0.1°C)		71st Coolest
Coolest since:
1979
55th Warmest
Warmest since:
2018
Ties: 1948, 1966, 1973
Sep 2012–Aug 2016
48-Month		51.8°F
(11.0°C)		51.6°F
(10.9°C)		0.2°F
(0.1°C)		59th Coolest
Coolest since:
1905
66th Warmest
Warmest since:
2019
Ties: 1921, 1925, 1931, 1938, 1950, 1995
Sep 2011–Aug 2016
60-Month		52.7°F
(11.5°C)		51.6°F
(10.9°C)		1.1°F
(0.6°C)		106th Coolest
Coolest since:
1906
18th Warmest
Warmest since:
2020
Ties: 1956, 2001, 2005, 2010, 2018

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