Divisional Rankings

Divisional Data Info
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Illinois, Climate Division 7. East Southeast

Average Temperature Rankings, September 1991

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1991
1-Month
68.0°F
(20.0°C)
67.4°F
(19.7°C)
0.6°F
(0.3°C)
71st Coolest
Coolest since:
1918
58th Warmest
Warmest since:
1925
Ties: 1947
Aug–Sep 1991
2-Month
71.8°F
(22.1°C)
70.8°F
(21.6°C)
1.0°F
(0.5°C)
88th Coolest
Coolest since:
1967
41st Warmest
Warmest since:
1936
Ties: 1978
Jul–Sep 1991
3-Month
73.6°F
(23.1°C)
72.7°F
(22.6°C)
0.9°F
(0.5°C)
89th Coolest
Coolest since:
1967
40th Warmest
Warmest since:
1936
Ties: 1935, 1973, 2011
Jun–Sep 1991
4-Month
74.1°F
(23.4°C)
72.5°F
(22.5°C)
1.6°F
(0.9°C)
104th Coolest
Coolest since:
1967
25th Warmest
Warmest since:
1936
Ties: 1911, 1998
May–Sep 1991
5-Month
73.3°F
(22.9°C)
70.7°F
(21.5°C)
2.6°F
(1.4°C)
121st Coolest
Coolest since:
1924
8th Warmest
Warmest since:
1936
Apr–Sep 1991
6-Month
70.7°F
(21.5°C)
67.8°F
(19.9°C)
2.9°F
(1.6°C)
126th Coolest
Coolest since:
1907
3rd Warmest
Warmest since:
2010
Mar–Sep 1991
7-Month
67.1°F
(19.5°C)
64.0°F
(17.8°C)
3.1°F
(1.7°C)
124th Coolest
Coolest since:
1924
5th Warmest
Warmest since:
2012
Ties: 2007
Feb–Sep 1991
8-Month
63.2°F
(17.3°C)
59.9°F
(15.5°C)
3.3°F
(1.8°C)
126th Coolest
Coolest since:
1904, 1924
3rd Warmest
Warmest since:
2012
Jan–Sep 1991
9-Month
59.1°F
(15.1°C)
56.3°F
(13.5°C)
2.8°F
(1.6°C)
123rd Coolest
Coolest since:
1979
6th Warmest
Warmest since:
2012
Ties: 1933
Dec 1990–Sep 1991
10-Month
56.5°F
(13.6°C)
53.8°F
(12.1°C)
2.7°F
(1.5°C)
120th Coolest
Coolest since:
1904
8th Warmest
Warmest since:
2012
Nov 1990–Sep 1991
11-Month
55.8°F
(13.2°C)
52.8°F
(11.6°C)
3.0°F
(1.6°C)
123rd Coolest
Coolest since:
1904
5th Warmest
Warmest since:
2012
Ties: 2017
Oct 1990–Sep 1991
12-Month
55.7°F
(13.2°C)
53.1°F
(11.7°C)
2.6°F
(1.5°C)
120th Coolest
Coolest since:
1904
8th Warmest
Warmest since:
2012
Apr 1990–Sep 1991
18-Month
59.4°F
(15.2°C)
57.9°F
(14.4°C)
1.5°F
(0.8°C)
109th Coolest
Coolest since:
1918
19th Warmest
Warmest since:
2012
Ties: 1914, 1953, 1992
Oct 1989–Sep 1991
24-Month
54.7°F
(12.6°C)
53.1°F
(11.7°C)
1.6°F
(0.9°C)
112th Coolest
Coolest since:
1979
15th Warmest
Warmest since:
2017
Ties: 1992
Oct 1988–Sep 1991
36-Month
54.0°F
(12.2°C)
53.1°F
(11.7°C)
0.9°F
(0.5°C)
97th Coolest
Coolest since:
1979
29th Warmest
Warmest since:
2018
Ties: 1943, 1993, 2021
Oct 1987–Sep 1991
48-Month
53.9°F
(12.2°C)
53.0°F
(11.7°C)
0.9°F
(0.5°C)
98th Coolest
Coolest since:
1980
27th Warmest
Warmest since:
2019
Ties: 1936, 1944, 1954, 1989, 1992, 1993, 2017
Oct 1986–Sep 1991
60-Month
54.1°F
(12.3°C)
53.0°F
(11.7°C)
1.1°F
(0.6°C)
105th Coolest
Coolest since:
1982
19th Warmest
Warmest since:
2020
Ties: 1933, 2001, 2005

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