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 2012

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
August 2012
1-Month		73.6°F
(23.1°C)		73.4°F
(23.0°C)		0.2°F
(0.1°C)		64th Coolest
Coolest since:
1915
65th Warmest
Warmest since:
1947
Ties: 1925, 1949, 1958, 2022
Jul–Aug 2012
2-Month		77.7°F
(25.4°C)		74.5°F
(23.6°C)		3.2°F
(1.8°C)		121st Coolest
Coolest since:
1915
8th Warmest
Warmest since:
1936
Ties: 1934
Jun–Aug 2012
3-Month		76.0°F
(24.4°C)		73.5°F
(23.1°C)		2.5°F
(1.3°C)		118th Coolest
Coolest since:
1915
11th Warmest
Warmest since:
1936
May–Aug 2012
4-Month		74.0°F
(23.3°C)		70.6°F
(21.4°C)		3.4°F
(1.9°C)		126th Coolest
Coolest since:
1915
3rd Warmest
Warmest since:
1936
Apr–Aug 2012
5-Month		70.1°F
(21.2°C)		66.8°F
(19.3°C)		3.3°F
(1.9°C)		126th Coolest
Coolest since:
1907
3rd Warmest
Warmest since:
1934
Ties: 1991
Mar–Aug 2012
6-Month		67.7°F
(19.8°C)		62.3°F
(16.8°C)		5.4°F
(3.0°C)		128th Coolest
Coolest since:
1950, 1960
1st Warmest
Warmest to Date
2012
Feb–Aug 2012
7-Month		63.1°F
(17.3°C)		57.6°F
(14.2°C)		5.5°F
(3.1°C)		128th Coolest
Coolest since:
1904
1st Warmest
Warmest to Date
2012
Jan–Aug 2012
8-Month		59.2°F
(15.1°C)		53.6°F
(12.0°C)		5.6°F
(3.1°C)		128th Coolest
Coolest since:
1912
1st Warmest
Warmest to Date
2012
Dec 2011–Aug 2012
9-Month		56.6°F
(13.7°C)		50.9°F
(10.5°C)		5.7°F
(3.2°C)		127th Coolest
Coolest since:
1904
1st Warmest
Warmest to Date
2012
Nov 2011–Aug 2012
10-Month		55.6°F
(13.1°C)		49.9°F
(9.9°C)		5.7°F
(3.2°C)		127th Coolest
Coolest since:
1904
1st Warmest
Warmest to Date
2012
Oct 2011–Aug 2012
11-Month		55.5°F
(13.1°C)		50.3°F
(10.2°C)		5.2°F
(2.9°C)		127th Coolest
Coolest since:
1904
1st Warmest
Warmest to Date
2012
Sep 2011–Aug 2012
12-Month		56.2°F
(13.4°C)		51.6°F
(10.9°C)		4.6°F
(2.5°C)		127th Coolest
Coolest since:
1904
1st Warmest
Warmest to Date
2012
Mar 2011–Aug 2012
18-Month		58.8°F
(14.9°C)		55.2°F
(12.9°C)		3.6°F
(2.0°C)		127th Coolest
Coolest since:
1904
1st Warmest
Warmest to Date
2012
Sep 2010–Aug 2012
24-Month		54.3°F
(12.4°C)		51.6°F
(10.9°C)		2.7°F
(1.5°C)		125th Coolest
Coolest since:
1905
2nd Warmest
Warmest to Date
2017
Sep 2009–Aug 2012
36-Month		53.9°F
(12.2°C)		51.6°F
(10.9°C)		2.3°F
(1.3°C)		123rd Coolest
Coolest since:
1979
3rd Warmest
Warmest since:
2018
Sep 2008–Aug 2012
48-Month		53.2°F
(11.8°C)		51.6°F
(10.9°C)		1.6°F
(0.9°C)		115th Coolest
Coolest since:
1905
10th Warmest
Warmest since:
2019
Ties: 1935
Sep 2007–Aug 2012
60-Month		52.9°F
(11.6°C)		51.6°F
(10.9°C)		1.3°F
(0.7°C)		113th Coolest
Coolest since:
1906
11th Warmest
Warmest since:
2020
Ties: 1957, 2009, 2013

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