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, August 2021

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
August 2021
1-Month
76.2°F
(24.6°C)
74.2°F
(23.4°C)
2.0°F
(1.2°C)
102nd Coolest
Coolest since:
1915
27th Warmest
Warmest since:
1947
Ties: 1906
Jul–Aug 2021
2-Month
75.7°F
(24.3°C)
75.3°F
(24.1°C)
0.4°F
(0.2°C)
79th Coolest
Coolest since:
1915
50th Warmest
Warmest since:
1936
Ties: 1977, 1998, 2001, 2003
Jun–Aug 2021
3-Month
75.2°F
(24.0°C)
74.3°F
(23.5°C)
0.9°F
(0.5°C)
91st Coolest
Coolest since:
1927
38th Warmest
Warmest since:
1936
Ties: 1911
May–Aug 2021
4-Month
71.8°F
(22.1°C)
71.6°F
(22.0°C)
0.2°F
(0.1°C)
72nd Coolest
Coolest since:
1915
57th Warmest
Warmest since:
1936
Ties: 1902, 1937
Apr–Aug 2021
5-Month
68.1°F
(20.1°C)
67.8°F
(19.9°C)
0.3°F
(0.2°C)
70th Coolest
Coolest since:
1907
59th Warmest
Warmest since:
2010
Ties: 1918, 1919, 1981
Mar–Aug 2021
6-Month
64.8°F
(18.2°C)
63.4°F
(17.4°C)
1.4°F
(0.8°C)
107th Coolest
Coolest since:
1960
22nd Warmest
Warmest since:
2012
Ties: 1913, 1922, 1933, 1998
Feb–Aug 2021
7-Month
59.0°F
(15.0°C)
58.9°F
(14.9°C)
0.1°F
(0.1°C)
59th Coolest
Coolest since:
1904
70th Warmest
Warmest since:
2012
Ties: 1898, 1908, 1939, 1945, 1992
Jan–Aug 2021
8-Month
55.5°F
(13.1°C)
55.0°F
(12.8°C)
0.5°F
(0.3°C)
73rd Coolest
Coolest since:
1978
56th Warmest
Warmest since:
2012
Ties: 1957, 2022
Dec 2020–Aug 2021
9-Month
53.2°F
(11.8°C)
52.4°F
(11.3°C)
0.8°F
(0.5°C)
83rd Coolest
Coolest since:
1904
45th Warmest
Warmest since:
2012
Ties: 2004, 2018, 2019
Nov 2020–Aug 2021
10-Month
52.7°F
(11.5°C)
51.4°F
(10.8°C)
1.3°F
(0.7°C)
101st Coolest
Coolest since:
1904
27th Warmest
Warmest since:
2012
Ties: 1922
Oct 2020–Aug 2021
11-Month
52.8°F
(11.6°C)
51.8°F
(11.0°C)
1.0°F
(0.6°C)
94th Coolest
Coolest since:
1904
34th Warmest
Warmest since:
2012
Ties: 1986, 2004, 2020
Sep 2020–Aug 2021
12-Month
54.0°F
(12.2°C)
53.1°F
(11.7°C)
0.9°F
(0.5°C)
94th Coolest
Coolest since:
1904
34th Warmest
Warmest since:
2012
Ties: 1913, 1919, 1986, 2011
Mar 2020–Aug 2021
18-Month
57.2°F
(14.0°C)
56.5°F
(13.6°C)
0.7°F
(0.4°C)
87th Coolest
Coolest since:
1904
41st Warmest
Warmest since:
2012
Ties: 1923, 1943, 2019
Sep 2019–Aug 2021
24-Month
54.2°F
(12.3°C)
53.1°F
(11.7°C)
1.1°F
(0.6°C)
104th Coolest
Coolest since:
1979
23rd Warmest
Warmest since:
2017
Ties: 1914, 2011
Sep 2018–Aug 2021
36-Month
54.0°F
(12.2°C)
53.0°F
(11.7°C)
1.0°F
(0.5°C)
98th Coolest
Coolest since:
1979
28th Warmest
Warmest since:
2018
Ties: 1987, 1991, 2004
Sep 2017–Aug 2021
48-Month
54.1°F
(12.3°C)
53.0°F
(11.7°C)
1.1°F
(0.6°C)
104th Coolest
Coolest since:
1980
21st Warmest
Warmest since:
2019
Ties: 1922
Sep 2016–Aug 2021
60-Month
54.6°F
(12.6°C)
53.0°F
(11.7°C)
1.6°F
(0.9°C)
121st Coolest
Coolest since:
1906, 1981, 1982
3rd Warmest
Warmest since:
2020

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