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 7. East Southeast

Average Temperature Rankings, September 2018

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 2018
1-Month
71.9°F
(22.2°C)
67.4°F
(19.7°C)
4.5°F
(2.5°C)
122nd Coolest
Coolest since:
1918
7th Warmest
Warmest since:
1925
Ties: 1960, 1998
Aug–Sep 2018
2-Month
73.5°F
(23.1°C)
70.8°F
(21.6°C)
2.7°F
(1.5°C)
114th Coolest
Coolest since:
1967
15th Warmest
Warmest since:
1936
Ties: 1988
Jul–Sep 2018
3-Month
74.2°F
(23.4°C)
72.7°F
(22.6°C)
1.5°F
(0.8°C)
103rd Coolest
Coolest since:
1967
26th Warmest
Warmest since:
1936
Ties: 1914, 1938
Jun–Sep 2018
4-Month
74.6°F
(23.7°C)
72.6°F
(22.6°C)
2.0°F
(1.1°C)
111th Coolest
Coolest since:
1967
18th Warmest
Warmest since:
1936
Ties: 1980, 2007
May–Sep 2018
5-Month
74.2°F
(23.4°C)
70.7°F
(21.5°C)
3.5°F
(1.9°C)
127th Coolest
Coolest since:
1924
2nd Warmest
Warmest since:
1936
Apr–Sep 2018
6-Month
69.6°F
(20.9°C)
67.7°F
(19.8°C)
1.9°F
(1.1°C)
111th Coolest
Coolest since:
1907
18th Warmest
Warmest since:
2010
Ties: 1913, 1925, 2002
Mar–Sep 2018
7-Month
65.4°F
(18.6°C)
64.0°F
(17.8°C)
1.4°F
(0.8°C)
106th Coolest
Coolest since:
1924
23rd Warmest
Warmest since:
2012
Ties: 1934, 1953, 2002, 2017
Feb–Sep 2018
8-Month
61.7°F
(16.5°C)
59.9°F
(15.5°C)
1.8°F
(1.0°C)
113th Coolest
Coolest since:
1904, 1924
16th Warmest
Warmest since:
2012
Ties: 1933, 1955, 2002
Jan–Sep 2018
9-Month
57.7°F
(14.3°C)
56.4°F
(13.6°C)
1.3°F
(0.7°C)
102nd Coolest
Coolest since:
1979
27th Warmest
Warmest since:
2012
Ties: 1919, 1930, 1946, 1999, 2000
Dec 2017–Sep 2018
10-Month
55.1°F
(12.8°C)
53.9°F
(12.2°C)
1.2°F
(0.6°C)
95th Coolest
Coolest since:
1904
33rd Warmest
Warmest since:
2012
Ties: 1911, 1914, 1949, 2019
Nov 2017–Sep 2018
11-Month
54.1°F
(12.3°C)
52.8°F
(11.6°C)
1.3°F
(0.7°C)
97th Coolest
Coolest since:
1904
31st Warmest
Warmest since:
2012
Ties: 1934, 1938, 2022
Oct 2017–Sep 2018
12-Month
54.5°F
(12.5°C)
53.1°F
(11.7°C)
1.4°F
(0.8°C)
104th Coolest
Coolest since:
1904
24th Warmest
Warmest since:
2012
Ties: 1933, 2010
Apr 2017–Sep 2018
18-Month
59.3°F
(15.2°C)
58.0°F
(14.4°C)
1.3°F
(0.8°C)
105th Coolest
Coolest since:
1918
23rd Warmest
Warmest since:
2012
Ties: 2022
Oct 2016–Sep 2018
24-Month
55.4°F
(13.0°C)
53.1°F
(11.7°C)
2.3°F
(1.3°C)
124th Coolest
Coolest since:
1979
3rd Warmest
Warmest since:
2017
Ties: 1922, 2013
Oct 2015–Sep 2018
36-Month
55.7°F
(13.2°C)
53.0°F
(11.7°C)
2.7°F
(1.5°C)
125th Coolest
Coolest since:
1979
1st Warmest
Warmest to Date
2018
Oct 2014–Sep 2018
48-Month
54.9°F
(12.7°C)
53.1°F
(11.7°C)
1.8°F
(1.0°C)
123rd Coolest
Coolest since:
1980
2nd Warmest
Warmest since:
2019
Ties: 2007
Oct 2013–Sep 2018
60-Month
54.0°F
(12.2°C)
53.0°F
(11.7°C)
1.0°F
(0.5°C)
101st Coolest
Coolest since:
1982
23rd Warmest
Warmest since:
2020
Ties: 1923, 1955, 2004, 2014, 2016

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