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 2009

View Period (Months):
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  • Record Coolest
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  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 2009
1-Month
67.1°F
(19.5°C)
67.4°F
(19.7°C)
-0.3°F
(-0.2°C)
57th Coolest
Coolest since:
1918
72nd Warmest
Warmest since:
1925
Ties: 1963
Aug–Sep 2009
2-Month
69.7°F
(20.9°C)
70.8°F
(21.6°C)
-1.1°F
(-0.7°C)
37th Coolest
Coolest since:
1967
92nd Warmest
Warmest since:
1936
Jul–Sep 2009
3-Month
70.3°F
(21.3°C)
72.6°F
(22.6°C)
-2.3°F
(-1.3°C)
6th Coolest
Coolest since:
1967
123rd Warmest
Warmest since:
1936
Ties: 1902, 1992
Jun–Sep 2009
4-Month
71.4°F
(21.9°C)
72.6°F
(22.6°C)
-1.2°F
(-0.7°C)
27th Coolest
Coolest since:
1967
102nd Warmest
Warmest since:
1936
Ties: 1896, 1912, 1962, 1975
May–Sep 2009
5-Month
69.9°F
(21.1°C)
70.8°F
(21.6°C)
-0.9°F
(-0.5°C)
36th Coolest
Coolest since:
1924
93rd Warmest
Warmest since:
1936
Apr–Sep 2009
6-Month
67.1°F
(19.5°C)
67.7°F
(19.8°C)
-0.6°F
(-0.3°C)
38th Coolest
Coolest since:
1907
91st Warmest
Warmest since:
2010
Ties: 1975, 2003, 2020
Mar–Sep 2009
7-Month
64.2°F
(17.9°C)
64.0°F
(17.8°C)
0.2°F
(0.1°C)
66th Coolest
Coolest since:
1924
63rd Warmest
Warmest since:
2012
Ties: 1901
Feb–Sep 2009
8-Month
60.4°F
(15.8°C)
59.9°F
(15.5°C)
0.5°F
(0.3°C)
77th Coolest
Coolest since:
1904, 1924
52nd Warmest
Warmest since:
2012
Ties: 1896, 1913, 1949, 2020
Jan–Sep 2009
9-Month
56.3°F
(13.5°C)
56.3°F
(13.5°C)
0.0°F
(0.0°C)
61st Coolest
Coolest since:
1979
68th Warmest
Warmest since:
2012
Ties: 1974, 1981
Dec 2008–Sep 2009
10-Month
53.7°F
(12.1°C)
53.9°F
(12.2°C)
-0.2°F
(-0.1°C)
53rd Coolest
Coolest since:
1904
75th Warmest
Warmest since:
2012
Ties: 1900, 1906, 1927, 1975
Nov 2008–Sep 2009
11-Month
52.6°F
(11.4°C)
52.8°F
(11.6°C)
-0.2°F
(-0.2°C)
48th Coolest
Coolest since:
1904
80th Warmest
Warmest since:
2012
Ties: 1906, 1966
Oct 2008–Sep 2009
12-Month
52.9°F
(11.6°C)
53.1°F
(11.7°C)
-0.2°F
(-0.1°C)
52nd Coolest
Coolest since:
1904
76th Warmest
Warmest since:
2012
Ties: 1975, 1980
Apr 2008–Sep 2009
18-Month
57.7°F
(14.3°C)
58.0°F
(14.4°C)
-0.3°F
(-0.1°C)
44th Coolest
Coolest since:
1918
84th Warmest
Warmest since:
2012
Ties: 1903, 1906, 1947, 1960
Oct 2007–Sep 2009
24-Month
53.2°F
(11.8°C)
53.1°F
(11.7°C)
0.1°F
(0.1°C)
71st Coolest
Coolest since:
1979
56th Warmest
Warmest since:
2017
Ties: 1909, 1920, 1965, 1972, 1975, 1989, 1993, 1996, 2004
Oct 2006–Sep 2009
36-Month
53.8°F
(12.1°C)
53.0°F
(11.7°C)
0.8°F
(0.4°C)
91st Coolest
Coolest since:
1979
35th Warmest
Warmest since:
2018
Ties: 1957
Oct 2005–Sep 2009
48-Month
54.1°F
(12.3°C)
53.1°F
(11.7°C)
1.0°F
(0.6°C)
105th Coolest
Coolest since:
1980
20th Warmest
Warmest since:
2019
Ties: 1988, 2006, 2021
Oct 2004–Sep 2009
60-Month
54.3°F
(12.4°C)
53.0°F
(11.7°C)
1.3°F
(0.7°C)
112th Coolest
Coolest since:
1982
12th Warmest
Warmest since:
2020
Ties: 1936, 1956, 2007

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