Divisional Rankings

Divisional 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, Climate Division 5. East

Average Temperature Rankings, August 2016

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
August 2016
1-Month 		75.0°F
(23.9°C)		 72.1°F
(22.3°C)		 2.9°F
(1.6°C)		 113th Coolest
Coolest since:
 1915
16th Warmest
Warmest since:
 1947
Ties: 1938
Jul–Aug 2016
2-Month 		74.7°F
(23.7°C)		 73.3°F
(22.9°C)		 1.4°F
(0.8°C)		 102nd Coolest
Coolest since:
 1915
27th Warmest
Warmest since:
 1936
Ties: 2005
Jun–Aug 2016
3-Month 		74.2°F
(23.4°C)		 72.3°F
(22.4°C)		 1.9°F
(1.0°C)		 105th Coolest
Coolest since:
 1915
24th Warmest
Warmest since:
 1936
Ties: 1987
May–Aug 2016
4-Month 		71.0°F
(21.7°C)		 69.5°F
(20.8°C)		 1.5°F
(0.9°C)		 102nd Coolest
Coolest since:
 1915
27th Warmest
Warmest since:
 1934
Ties: 1999, 2005
Apr–Aug 2016
5-Month 		67.0°F
(19.4°C)		 65.5°F
(18.6°C)		 1.5°F
(0.8°C)		 103rd Coolest
Coolest since:
 1907
26th Warmest
Warmest since:
 1991
Ties: 1949, 1986, 2006, 2018
Mar–Aug 2016
6-Month 		63.6°F
(17.6°C)		 61.0°F
(16.1°C)		 2.6°F
(1.5°C)		 120th Coolest
Coolest since:
 1904
9th Warmest
Warmest since:
 2012
Feb–Aug 2016
7-Month 		59.1°F
(15.1°C)		 56.2°F
(13.4°C)		 2.9°F
(1.7°C)		 121st Coolest
Coolest since:
 1904
8th Warmest
Warmest since:
 2012
Jan–Aug 2016
8-Month 		55.0°F
(12.8°C)		 52.2°F
(11.2°C)		 2.8°F
(1.6°C)		 121st Coolest
Coolest since:
 1904, 1912
8th Warmest
Warmest since:
 2012
Dec 2015–Aug 2016
9-Month 		53.3°F
(11.8°C)		 49.5°F
(9.7°C)		 3.8°F
(2.1°C)		 125th Coolest
Coolest since:
 1904
3rd Warmest
Warmest since:
 2012
Nov 2015–Aug 2016
10-Month 		52.5°F
(11.4°C)		 48.5°F
(9.2°C)		 4.0°F
(2.2°C)		 126th Coolest
Coolest since:
 1904
2nd Warmest
Warmest since:
 2012
Oct 2015–Aug 2016
11-Month 		52.8°F
(11.6°C)		 49.0°F
(9.4°C)		 3.8°F
(2.2°C)		 126th Coolest
Coolest since:
 1904
2nd Warmest
Warmest since:
 2012
Sep 2015–Aug 2016
12-Month 		54.2°F
(12.3°C)		 50.3°F
(10.2°C)		 3.9°F
(2.1°C)		 126th Coolest
Coolest since:
 1904
2nd Warmest
Warmest since:
 2012
Ties: 2017
Mar 2015–Aug 2016
18-Month 		56.5°F
(13.6°C)		 53.9°F
(12.2°C)		 2.6°F
(1.4°C)		 125th Coolest
Coolest since:
 1904
3rd Warmest
Warmest since:
 2012
Sep 2014–Aug 2016
24-Month 		51.8°F
(11.0°C)		 50.3°F
(10.2°C)		 1.5°F
(0.8°C)		 106th Coolest
Coolest since:
 1905
21st Warmest
Warmest since:
 2017
Sep 2013–Aug 2016
36-Month 		50.6°F
(10.3°C)		 50.3°F
(10.2°C)		 0.3°F
(0.1°C)		 70th Coolest
Coolest since:
 1904
56th Warmest
Warmest since:
 2018
Ties: 1948
Sep 2012–Aug 2016
48-Month 		50.6°F
(10.3°C)		 50.3°F
(10.2°C)		 0.3°F
(0.1°C)		 67th Coolest
Coolest since:
 1905
58th Warmest
Warmest since:
 2019
Ties: 1937, 1939, 1945
Sep 2011–Aug 2016
60-Month 		51.5°F
(10.8°C)		 50.3°F
(10.2°C)		 1.2°F
(0.6°C)		 106th Coolest
Coolest since:
 1906
18th Warmest
Warmest since:
 2020
Ties: 1956, 2005, 2010, 2018

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