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 5. East

Average Temperature Rankings, May 1939

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1939
1-Month
64.3°F
(17.9°C)
61.0°F
(16.1°C)
3.3°F
(1.8°C)
101st Coolest
Coolest since:
1907
28th Warmest
Warmest since:
2018
Apr–May 1939
2-Month
55.1°F
(12.8°C)
55.4°F
(13.0°C)
-0.3°F
(-0.2°C)
46th Coolest
Coolest since:
1907
83rd Warmest
Warmest since:
1977
Ties: 1905
Mar–May 1939
3-Month
49.9°F
(9.9°C)
49.7°F
(9.8°C)
0.2°F
(0.1°C)
62nd Coolest
Coolest since:
1960
67th Warmest
Warmest since:
2012
Ties: 1898, 1934, 1956
Feb–May 1939
4-Month
44.3°F
(6.8°C)
44.1°F
(6.7°C)
0.2°F
(0.1°C)
62nd Coolest
Coolest since:
1978
67th Warmest
Warmest since:
2012
Ties: 1908, 1919
Jan–May 1939
5-Month
41.6°F
(5.3°C)
40.1°F
(4.5°C)
1.5°F
(0.8°C)
94th Coolest
Coolest since:
1978
35th Warmest
Warmest since:
2012
Ties: 1925, 1930, 1931, 1944, 2010
Dec 1938–May 1939
6-Month
39.5°F
(4.2°C)
38.1°F
(3.4°C)
1.4°F
(0.8°C)
90th Coolest
Coolest since:
1978
38th Warmest
Warmest since:
2012
Nov 1938–May 1939
7-Month
39.9°F
(4.4°C)
38.3°F
(3.5°C)
1.6°F
(0.9°C)
99th Coolest
Coolest since:
1904
29th Warmest
Warmest since:
2012
Ties: 1985, 2013, 2022
Oct 1938–May 1939
8-Month
42.1°F
(5.6°C)
40.3°F
(4.6°C)
1.8°F
(1.0°C)
106th Coolest
Coolest since:
1904
22nd Warmest
Warmest since:
2012
Ties: 1919, 1983
Sep 1938–May 1939
9-Month
44.8°F
(7.1°C)
43.0°F
(6.1°C)
1.8°F
(1.0°C)
106th Coolest
Coolest since:
1904
22nd Warmest
Warmest since:
2012
Ties: 1976
Aug 1938–May 1939
10-Month
47.8°F
(8.8°C)
45.9°F
(7.7°C)
1.9°F
(1.1°C)
110th Coolest
Coolest since:
1904
18th Warmest
Warmest since:
2012
Ties: 1955
Jul 1938–May 1939
11-Month
50.3°F
(10.2°C)
48.5°F
(9.2°C)
1.8°F
(1.0°C)
110th Coolest
Coolest since:
1904
18th Warmest
Warmest since:
2012
Ties: 2004
Jun 1938–May 1939
12-Month
51.8°F
(11.0°C)
50.3°F
(10.2°C)
1.5°F
(0.8°C)
108th Coolest
Coolest since:
1904
20th Warmest
Warmest since:
2012
Ties: 1976
Dec 1937–May 1939
18-Month
48.1°F
(8.9°C)
46.3°F
(7.9°C)
1.8°F
(1.0°C)
111th Coolest
Coolest since:
1905
16th Warmest
Warmest since:
2017
Ties: 1988, 2022
Jun 1937–May 1939
24-Month
51.3°F
(10.7°C)
50.3°F
(10.2°C)
1.0°F
(0.5°C)
98th Coolest
Coolest since:
1905
29th Warmest
Warmest since:
2017
Ties: 1950, 2002, 2004
Jun 1936–May 1939
36-Month
51.3°F
(10.7°C)
50.3°F
(10.2°C)
1.0°F
(0.5°C)
94th Coolest
Coolest since:
1905, 1906
32nd Warmest
Warmest since:
2018
Ties: 1922, 1954, 2005
Jun 1935–May 1939
48-Month
50.6°F
(10.3°C)
50.3°F
(10.2°C)
0.3°F
(0.1°C)
67th Coolest
Coolest since:
1905
58th Warmest
Warmest since:
2019
Ties: 1936, 1943, 1954
Jun 1934–May 1939
60-Month
50.8°F
(10.4°C)
50.3°F
(10.2°C)
0.5°F
(0.2°C)
75th Coolest
Coolest since:
1905, 1906, 1908
49th Warmest
Warmest since:
2020
Ties: 1924, 1937, 1938, 1943

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