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 1998

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1998
1-Month
68.1°F
(20.1°C)
63.2°F
(17.3°C)
4.9°F
(2.8°C)
116th Coolest
Coolest since:
1924
13th Warmest
Warmest since:
2018
Apr–May 1998
2-Month
61.0°F
(16.1°C)
58.0°F
(14.4°C)
3.0°F
(1.7°C)
113th Coolest
Coolest since:
1907
16th Warmest
Warmest since:
1896
Mar–May 1998
3-Month
54.7°F
(12.6°C)
52.5°F
(11.4°C)
2.2°F
(1.2°C)
108th Coolest
Coolest since:
1960
21st Warmest
Warmest since:
2012
Ties: 1942, 1945
Feb–May 1998
4-Month
51.3°F
(10.7°C)
47.3°F
(8.5°C)
4.0°F
(2.2°C)
122nd Coolest
Coolest since:
1978
7th Warmest
Warmest since:
2012
Ties: 1946
Jan–May 1998
5-Month
48.0°F
(8.9°C)
43.4°F
(6.3°C)
4.6°F
(2.6°C)
125th Coolest
Coolest since:
1978
4th Warmest
Warmest since:
2012
Dec 1997–May 1998
6-Month
45.6°F
(7.6°C)
41.5°F
(5.3°C)
4.1°F
(2.3°C)
124th Coolest
Coolest since:
1978
4th Warmest
Warmest since:
2012
Nov 1997–May 1998
7-Month
44.7°F
(7.1°C)
41.5°F
(5.3°C)
3.2°F
(1.8°C)
119th Coolest
Coolest since:
1978
9th Warmest
Warmest since:
2012
Oct 1997–May 1998
8-Month
46.1°F
(7.8°C)
43.3°F
(6.3°C)
2.8°F
(1.5°C)
119th Coolest
Coolest since:
1978
9th Warmest
Warmest since:
2012
Sep 1997–May 1998
9-Month
48.4°F
(9.1°C)
45.9°F
(7.7°C)
2.5°F
(1.4°C)
118th Coolest
Coolest since:
1978
10th Warmest
Warmest since:
2012
Ties: 2002
Aug 1997–May 1998
10-Month
50.8°F
(10.4°C)
48.8°F
(9.3°C)
2.0°F
(1.1°C)
116th Coolest
Coolest since:
1978
12th Warmest
Warmest since:
2012
Ties: 1942, 1954, 1992
Jul 1997–May 1998
11-Month
53.1°F
(11.7°C)
51.3°F
(10.7°C)
1.8°F
(1.0°C)
112th Coolest
Coolest since:
1904
16th Warmest
Warmest since:
2012
Ties: 1922
Jun 1997–May 1998
12-Month
54.6°F
(12.6°C)
53.1°F
(11.7°C)
1.5°F
(0.9°C)
109th Coolest
Coolest since:
1904
19th Warmest
Warmest since:
2012
Ties: 1974
Dec 1996–May 1998
18-Month
50.1°F
(10.1°C)
49.2°F
(9.6°C)
0.9°F
(0.5°C)
94th Coolest
Coolest since:
1979
33rd Warmest
Warmest since:
2017
Ties: 1914, 1976, 2002
Jun 1996–May 1998
24-Month
53.4°F
(11.9°C)
53.1°F
(11.7°C)
0.3°F
(0.2°C)
73rd Coolest
Coolest since:
1905, 1978
54th Warmest
Warmest since:
2017
Ties: 1946, 1972
Jun 1995–May 1998
36-Month
53.0°F
(11.7°C)
53.1°F
(11.7°C)
-0.1°F
(0.0°C)
56th Coolest
Coolest since:
1979
70th Warmest
Warmest since:
2018
Ties: 1898, 1958, 1966
Jun 1994–May 1998
48-Month
53.3°F
(11.8°C)
53.0°F
(11.7°C)
0.3°F
(0.1°C)
65th Coolest
Coolest since:
1980
60th Warmest
Warmest since:
2019
Ties: 1946, 1954
Jun 1993–May 1998
60-Month
53.1°F
(11.7°C)
53.0°F
(11.7°C)
0.1°F
(0.0°C)
55th Coolest
Coolest since:
1981
69th Warmest
Warmest since:
2020
Ties: 1926, 1974, 1996

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