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 1939

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1939
1-Month
72.4°F
(22.4°C)
67.4°F
(19.7°C)
5.0°F
(2.7°C)
124th Coolest
Coolest since:
1918
5th Warmest
Warmest since:
1925
Aug–Sep 1939
2-Month
72.7°F
(22.6°C)
70.8°F
(21.6°C)
1.9°F
(1.0°C)
98th Coolest
Coolest since:
1967
31st Warmest
Warmest since:
1936
Jul–Sep 1939
3-Month
73.9°F
(23.3°C)
72.7°F
(22.6°C)
1.2°F
(0.7°C)
99th Coolest
Coolest since:
1967
30th Warmest
Warmest since:
1936
Ties: 1919, 1947, 1953
Jun–Sep 1939
4-Month
73.7°F
(23.2°C)
72.6°F
(22.6°C)
1.1°F
(0.6°C)
92nd Coolest
Coolest since:
1967
37th Warmest
Warmest since:
1936
Ties: 1986
May–Sep 1939
5-Month
72.1°F
(22.3°C)
70.7°F
(21.5°C)
1.4°F
(0.8°C)
101st Coolest
Coolest since:
1924
28th Warmest
Warmest since:
1936
Ties: 1900, 1901, 1922, 1955
Apr–Sep 1939
6-Month
68.3°F
(20.2°C)
67.7°F
(19.8°C)
0.6°F
(0.4°C)
77th Coolest
Coolest since:
1907
52nd Warmest
Warmest since:
2010
Ties: 1899, 1948
Mar–Sep 1939
7-Month
64.9°F
(18.3°C)
64.0°F
(17.8°C)
0.9°F
(0.5°C)
93rd Coolest
Coolest since:
1924
36th Warmest
Warmest since:
2012
Ties: 1908, 2006
Feb–Sep 1939
8-Month
60.7°F
(15.9°C)
60.0°F
(15.6°C)
0.7°F
(0.3°C)
88th Coolest
Coolest since:
1904, 1924
41st Warmest
Warmest since:
2012
Ties: 1932, 1941, 1957, 1964, 1983
Jan–Sep 1939
9-Month
57.8°F
(14.3°C)
56.4°F
(13.6°C)
1.4°F
(0.7°C)
103rd Coolest
Coolest since:
1979
26th Warmest
Warmest since:
2012
Dec 1938–Sep 1939
10-Month
55.2°F
(12.9°C)
53.9°F
(12.2°C)
1.3°F
(0.7°C)
97th Coolest
Coolest since:
1904
31st Warmest
Warmest since:
2012
Ties: 1995
Nov 1938–Sep 1939
11-Month
54.2°F
(12.3°C)
52.8°F
(11.6°C)
1.4°F
(0.7°C)
102nd Coolest
Coolest since:
1904
26th Warmest
Warmest since:
2012
Ties: 1925, 1931, 1949, 2021, 2022
Oct 1938–Sep 1939
12-Month
54.6°F
(12.6°C)
53.1°F
(11.7°C)
1.5°F
(0.9°C)
108th Coolest
Coolest since:
1904
20th Warmest
Warmest since:
2012
Ties: 1925, 1955, 1983
Apr 1938–Sep 1939
18-Month
59.2°F
(15.1°C)
57.9°F
(14.4°C)
1.3°F
(0.7°C)
103rd Coolest
Coolest since:
1918
25th Warmest
Warmest since:
2012
Ties: 1931, 1933, 1935, 1988
Oct 1937–Sep 1939
24-Month
54.3°F
(12.4°C)
53.1°F
(11.7°C)
1.2°F
(0.7°C)
107th Coolest
Coolest since:
1979
20th Warmest
Warmest since:
2017
Ties: 1934, 1988, 2002, 2016
Oct 1936–Sep 1939
36-Month
53.7°F
(12.1°C)
53.0°F
(11.7°C)
0.7°F
(0.4°C)
89th Coolest
Coolest since:
1979
37th Warmest
Warmest since:
2018
Ties: 1936, 1944, 1989, 2011
Oct 1935–Sep 1939
48-Month
53.6°F
(12.0°C)
53.1°F
(11.7°C)
0.5°F
(0.3°C)
83rd Coolest
Coolest since:
1980
42nd Warmest
Warmest since:
2019
Ties: 2011
Oct 1934–Sep 1939
60-Month
53.6°F
(12.0°C)
53.0°F
(11.7°C)
0.6°F
(0.3°C)
79th Coolest
Coolest since:
1982
45th Warmest
Warmest since:
2020
Ties: 1937, 1945, 1988, 1994

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