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 2011

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 2011
1-Month
65.0°F
(18.3°C)
67.4°F
(19.7°C)
-2.4°F
(-1.4°C)
21st Coolest
Coolest since:
1918
108th Warmest
Warmest since:
1925
Ties: 1984
Aug–Sep 2011
2-Month
70.2°F
(21.2°C)
70.8°F
(21.6°C)
-0.6°F
(-0.4°C)
48th Coolest
Coolest since:
1967
81st Warmest
Warmest since:
1936
Ties: 1923, 1934, 1952
Jul–Sep 2011
3-Month
73.6°F
(23.1°C)
72.6°F
(22.6°C)
1.0°F
(0.5°C)
89th Coolest
Coolest since:
1967
40th Warmest
Warmest since:
1936
Ties: 1935, 1973, 1991
Jun–Sep 2011
4-Month
73.8°F
(23.2°C)
72.6°F
(22.6°C)
1.2°F
(0.6°C)
94th Coolest
Coolest since:
1967
35th Warmest
Warmest since:
1936
Ties: 1955
May–Sep 2011
5-Month
71.7°F
(22.1°C)
70.7°F
(21.5°C)
1.0°F
(0.6°C)
91st Coolest
Coolest since:
1924
38th Warmest
Warmest since:
1936
Ties: 1925, 1964
Apr–Sep 2011
6-Month
69.1°F
(20.6°C)
67.7°F
(19.8°C)
1.4°F
(0.8°C)
99th Coolest
Coolest since:
1907
30th Warmest
Warmest since:
2010
Ties: 1931, 1953, 2019
Mar–Sep 2011
7-Month
65.5°F
(18.6°C)
64.0°F
(17.8°C)
1.5°F
(0.8°C)
110th Coolest
Coolest since:
1924
19th Warmest
Warmest since:
2012
Ties: 1959, 2005, 2021
Feb–Sep 2011
8-Month
61.5°F
(16.4°C)
59.9°F
(15.5°C)
1.6°F
(0.9°C)
105th Coolest
Coolest since:
1904, 1924
24th Warmest
Warmest since:
2012
Ties: 1911
Jan–Sep 2011
9-Month
57.4°F
(14.1°C)
56.4°F
(13.6°C)
1.0°F
(0.5°C)
92nd Coolest
Coolest since:
1979
37th Warmest
Warmest since:
2012
Ties: 1941, 1964
Dec 2010–Sep 2011
10-Month
54.3°F
(12.4°C)
53.9°F
(12.2°C)
0.4°F
(0.2°C)
73rd Coolest
Coolest since:
1904
55th Warmest
Warmest since:
2012
Ties: 1972, 2013
Nov 2010–Sep 2011
11-Month
53.4°F
(11.9°C)
52.8°F
(11.6°C)
0.6°F
(0.3°C)
81st Coolest
Coolest since:
1904
47th Warmest
Warmest since:
2012
Ties: 1930, 1935, 1946, 1972, 1990
Oct 2010–Sep 2011
12-Month
53.7°F
(12.1°C)
53.0°F
(11.7°C)
0.7°F
(0.4°C)
79th Coolest
Coolest since:
1904
49th Warmest
Warmest since:
2012
Ties: 1990, 1992, 2019
Apr 2010–Sep 2011
18-Month
59.6°F
(15.3°C)
58.0°F
(14.4°C)
1.6°F
(0.9°C)
115th Coolest
Coolest since:
1918
13th Warmest
Warmest since:
2012
Ties: 2000, 2007
Oct 2009–Sep 2011
24-Month
54.1°F
(12.3°C)
53.0°F
(11.7°C)
1.1°F
(0.6°C)
100th Coolest
Coolest since:
1979
27th Warmest
Warmest since:
2017
Ties: 1914, 2003, 2019, 2021
Oct 2008–Sep 2011
36-Month
53.7°F
(12.1°C)
53.0°F
(11.7°C)
0.7°F
(0.4°C)
89th Coolest
Coolest since:
1979
37th Warmest
Warmest since:
2018
Ties: 1936, 1939, 1944, 1989
Oct 2007–Sep 2011
48-Month
53.6°F
(12.0°C)
53.0°F
(11.7°C)
0.6°F
(0.3°C)
83rd Coolest
Coolest since:
1980
42nd Warmest
Warmest since:
2019
Ties: 1939
Oct 2006–Sep 2011
60-Month
53.9°F
(12.2°C)
53.0°F
(11.7°C)
0.9°F
(0.5°C)
95th Coolest
Coolest since:
1982
29th Warmest
Warmest since:
2020
Ties: 1925, 1992

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