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 8. Southwest

Average Temperature Rankings, August 2013

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
August 2013
1-Month 		75.0°F
(23.9°C)		 76.0°F
(24.4°C)		 -1.0°F
(-0.5°C)		 40th Coolest
Coolest since:
 1915
89th Warmest
Warmest since:
 1936
Ties: 1897, 1949
Jul–Aug 2013
2-Month 		74.9°F
(23.8°C)		 76.9°F
(24.9°C)		 -2.0°F
(-1.1°C)		 14th Coolest
Coolest since:
 1967
115th Warmest
Warmest since:
 1936
Ties: 2014
Jun–Aug 2013
3-Month 		74.8°F
(23.8°C)		 75.9°F
(24.4°C)		 -1.1°F
(-0.6°C)		 29th Coolest
Coolest since:
 1915, 1927
100th Warmest
Warmest since:
 1936
Ties: 1951
May–Aug 2013
4-Month 		72.6°F
(22.6°C)		 73.2°F
(22.9°C)		 -0.6°F
(-0.3°C)		 43rd Coolest
Coolest since:
 1967
86th Warmest
Warmest since:
 1936
Ties: 1895, 1948, 1951, 1973
Apr–Aug 2013
5-Month 		68.9°F
(20.5°C)		 69.6°F
(20.9°C)		 -0.7°F
(-0.4°C)		 32nd Coolest
Coolest since:
 1907
97th Warmest
Warmest since:
 2010
Ties: 1984, 2009
Mar–Aug 2013
6-Month 		64.0°F
(17.8°C)		 65.5°F
(18.6°C)		 -1.5°F
(-0.8°C)		 17th Coolest
Coolest since:
 1904
112th Warmest
Warmest since:
 2012
Ties: 1926, 1971, 1997
Feb–Aug 2013
7-Month 		60.0°F
(15.6°C)		 61.1°F
(16.2°C)		 -1.1°F
(-0.6°C)		 28th Coolest
Coolest since:
 1904
101st Warmest
Warmest since:
 2012
Ties: 1910
Jan–Aug 2013
8-Month 		56.9°F
(13.8°C)		 57.3°F
(14.1°C)		 -0.4°F
(-0.3°C)		 43rd Coolest
Coolest since:
 1912
86th Warmest
Warmest since:
 2012
Ties: 1903, 1972, 1993, 2015
Dec 2012–Aug 2013
9-Month 		55.2°F
(12.9°C)		 54.9°F
(12.7°C)		 0.3°F
(0.2°C)		 70th Coolest
Coolest since:
 1904
58th Warmest
Warmest since:
 2012
Nov 2012–Aug 2013
10-Month 		54.0°F
(12.2°C)		 53.8°F
(12.1°C)		 0.2°F
(0.1°C)		 67th Coolest
Coolest since:
 1904
61st Warmest
Warmest since:
 2012
Ties: 1901, 1916
Oct 2012–Aug 2013
11-Month 		54.2°F
(12.3°C)		 54.2°F
(12.3°C)		 0.0°F
(0.0°C)		 56th Coolest
Coolest since:
 1904
72nd Warmest
Warmest since:
 2012
Ties: 1900, 1950, 1981, 1985
Sep 2012–Aug 2013
12-Month 		55.3°F
(12.9°C)		 55.4°F
(13.0°C)		 -0.1°F
(-0.1°C)		 53rd Coolest
Coolest since:
 1904
75th Warmest
Warmest since:
 2012
Ties: 1928, 1944, 1966, 2009
Mar 2012–Aug 2013
18-Month 		60.5°F
(15.8°C)		 58.7°F
(14.8°C)		 1.8°F
(1.0°C)		 118th Coolest
Coolest since:
 1904
10th Warmest
Warmest since:
 2012
Ties: 1922, 2022
Sep 2011–Aug 2013
24-Month 		57.5°F
(14.2°C)		 55.4°F
(13.0°C)		 2.1°F
(1.2°C)		 120th Coolest
Coolest since:
 1979
7th Warmest
Warmest since:
 2017
Ties: 1932
Sep 2010–Aug 2013
36-Month 		57.2°F
(14.0°C)		 55.4°F
(13.0°C)		 1.8°F
(1.0°C)		 119th Coolest
Coolest since:
 1979
7th Warmest
Warmest since:
 2018
Ties: 2019
Sep 2009–Aug 2013
48-Month 		57.0°F
(13.9°C)		 55.3°F
(12.9°C)		 1.7°F
(1.0°C)		 119th Coolest
Coolest since:
 1980
6th Warmest
Warmest since:
 2019
Ties: 2007, 2008, 2012
Sep 2008–Aug 2013
60-Month 		56.7°F
(13.7°C)		 55.4°F
(13.0°C)		 1.3°F
(0.7°C)		 114th Coolest
Coolest since:
 1906
10th Warmest
Warmest since:
 2020
Ties: 2006, 2009, 2022

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