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, May 2021

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
May 2021
1-Month
61.6°F
(16.4°C)
63.2°F
(17.3°C)
-1.6°F
(-0.9°C)
40th Coolest
Coolest since:
1924
89th Warmest
Warmest since:
2018
Ties: 1979
Apr–May 2021
2-Month
57.5°F
(14.2°C)
58.0°F
(14.4°C)
-0.5°F
(-0.2°C)
44th Coolest
Coolest since:
1907
85th Warmest
Warmest since:
1896
Ties: 1916
Mar–May 2021
3-Month
54.3°F
(12.4°C)
52.6°F
(11.4°C)
1.7°F
(1.0°C)
96th Coolest
Coolest since:
1960
33rd Warmest
Warmest since:
2012
Ties: 1959, 2022
Feb–May 2021
4-Month
46.8°F
(8.2°C)
47.3°F
(8.5°C)
-0.5°F
(-0.3°C)
51st Coolest
Coolest since:
1978
78th Warmest
Warmest since:
2012
Jan–May 2021
5-Month
43.6°F
(6.4°C)
43.3°F
(6.3°C)
0.3°F
(0.1°C)
65th Coolest
Coolest since:
1978
64th Warmest
Warmest since:
2012
Dec 2020–May 2021
6-Month
42.2°F
(5.7°C)
41.5°F
(5.3°C)
0.7°F
(0.4°C)
77th Coolest
Coolest since:
1978
51st Warmest
Warmest since:
2012
Ties: 1930
Nov 2020–May 2021
7-Month
43.0°F
(6.1°C)
41.6°F
(5.3°C)
1.4°F
(0.8°C)
98th Coolest
Coolest since:
1978
30th Warmest
Warmest since:
2012
Ties: 1939, 2010, 2020
Oct 2020–May 2021
8-Month
44.4°F
(6.9°C)
43.4°F
(6.3°C)
1.0°F
(0.6°C)
87th Coolest
Coolest since:
1978
41st Warmest
Warmest since:
2012
Ties: 2018
Sep 2020–May 2021
9-Month
46.9°F
(8.3°C)
46.0°F
(7.8°C)
0.9°F
(0.5°C)
92nd Coolest
Coolest since:
1978
36th Warmest
Warmest since:
2012
Ties: 1941, 1983
Aug 2020–May 2021
10-Month
49.4°F
(9.7°C)
48.8°F
(9.3°C)
0.6°F
(0.4°C)
79th Coolest
Coolest since:
1978
49th Warmest
Warmest since:
2012
Jul 2020–May 2021
11-Month
52.0°F
(11.1°C)
51.3°F
(10.7°C)
0.7°F
(0.4°C)
84th Coolest
Coolest since:
1904
44th Warmest
Warmest since:
2012
Ties: 1898, 1938, 2019
Jun 2020–May 2021
12-Month
53.8°F
(12.1°C)
53.1°F
(11.7°C)
0.7°F
(0.4°C)
85th Coolest
Coolest since:
1904
43rd Warmest
Warmest since:
2012
Ties: 1919
Dec 2019–May 2021
18-Month
50.5°F
(10.3°C)
49.2°F
(9.6°C)
1.3°F
(0.7°C)
103rd Coolest
Coolest since:
1979
24th Warmest
Warmest since:
2017
Ties: 1950, 1953, 1974, 1987, 1988, 2003
Jun 2019–May 2021
24-Month
54.1°F
(12.3°C)
53.1°F
(11.7°C)
1.0°F
(0.6°C)
103rd Coolest
Coolest since:
1905, 1978
24th Warmest
Warmest since:
2017
Ties: 1939, 1950, 1988, 2005
Jun 2018–May 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, 1993, 1999, 2005
Jun 2017–May 2021
48-Month
54.0°F
(12.2°C)
53.0°F
(11.7°C)
1.0°F
(0.5°C)
100th Coolest
Coolest since:
1980
25th Warmest
Warmest since:
2019
Ties: 1923
Jun 2016–May 2021
60-Month
54.6°F
(12.6°C)
53.0°F
(11.7°C)
1.6°F
(0.9°C)
122nd Coolest
Coolest since:
1981
2nd Warmest
Warmest since:
2020
Ties: 1935, 2002

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