Divisional Rankings

Divisional Data Info
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Illinois, Climate Division 2. Northeast

Average Temperature Rankings, September 1991

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1991
1-Month
63.5°F
(17.5°C)
63.7°F
(17.6°C)
-0.2°F
(-0.1°C)
55th Coolest
Coolest since:
1918
74th Warmest
Warmest since:
1897
Ties: 1969
Aug–Sep 1991
2-Month
68.4°F
(20.2°C)
67.5°F
(19.7°C)
0.9°F
(0.5°C)
86th Coolest
Coolest since:
1902
43rd Warmest
Warmest since:
1947
Ties: 1905, 1920, 2003, 2022
Jul–Sep 1991
3-Month
70.6°F
(21.4°C)
69.4°F
(20.8°C)
1.2°F
(0.6°C)
96th Coolest
Coolest since:
1924
33rd Warmest
Warmest since:
1936
Ties: 1895, 1930, 1978
Jun–Sep 1991
4-Month
71.2°F
(21.8°C)
69.2°F
(20.7°C)
2.0°F
(1.1°C)
111th Coolest
Coolest since:
1915
18th Warmest
Warmest since:
2005
May–Sep 1991
5-Month
70.2°F
(21.2°C)
67.2°F
(19.6°C)
3.0°F
(1.6°C)
125th Coolest
Coolest since:
1924
4th Warmest
Warmest since:
1921, 1988
Ties: 1934, 1936
Apr–Sep 1991
6-Month
67.2°F
(19.6°C)
63.9°F
(17.7°C)
3.3°F
(1.9°C)
127th Coolest
Coolest since:
1907
2nd Warmest
Warmest since:
1921
Ties: 2010
Mar–Sep 1991
7-Month
63.3°F
(17.4°C)
59.9°F
(15.5°C)
3.4°F
(1.9°C)
125th Coolest
Coolest since:
1924
4th Warmest
Warmest since:
2012
Feb–Sep 1991
8-Month
59.1°F
(15.1°C)
55.5°F
(13.1°C)
3.6°F
(2.0°C)
125th Coolest
Coolest since:
1904, 1917
4th Warmest
Warmest since:
2012
Jan–Sep 1991
9-Month
54.7°F
(12.6°C)
51.7°F
(10.9°C)
3.0°F
(1.7°C)
123rd Coolest
Coolest since:
1904, 1912
6th Warmest
Warmest since:
2012
Ties: 2005, 2017
Dec 1990–Sep 1991
10-Month
52.0°F
(11.1°C)
49.1°F
(9.5°C)
2.9°F
(1.6°C)
121st Coolest
Coolest since:
1904
7th Warmest
Warmest since:
2012
Ties: 2005
Nov 1990–Sep 1991
11-Month
51.3°F
(10.7°C)
48.2°F
(9.0°C)
3.1°F
(1.7°C)
122nd Coolest
Coolest since:
1904
6th Warmest
Warmest since:
2012
Oct 1990–Sep 1991
12-Month
51.2°F
(10.7°C)
48.4°F
(9.1°C)
2.8°F
(1.6°C)
120th Coolest
Coolest since:
1904
8th Warmest
Warmest since:
2012
Ties: 1987
Apr 1990–Sep 1991
18-Month
55.4°F
(13.0°C)
53.6°F
(12.0°C)
1.8°F
(1.0°C)
114th Coolest
Coolest since:
1904
14th Warmest
Warmest since:
2012
Ties: 1988, 2021
Oct 1989–Sep 1991
24-Month
50.2°F
(10.1°C)
48.4°F
(9.1°C)
1.8°F
(1.0°C)
110th Coolest
Coolest since:
1918
17th Warmest
Warmest since:
2017
Ties: 2002
Oct 1988–Sep 1991
36-Month
49.5°F
(9.7°C)
48.4°F
(9.1°C)
1.1°F
(0.6°C)
97th Coolest
Coolest since:
1979
29th Warmest
Warmest since:
2000
Ties: 1922, 2003, 2014, 2020
Oct 1987–Sep 1991
48-Month
49.6°F
(9.8°C)
48.4°F
(9.1°C)
1.2°F
(0.7°C)
104th Coolest
Coolest since:
1905, 1918
21st Warmest
Warmest since:
2001, 2002, 2019
Ties: 1935, 1956, 1990
Oct 1986–Sep 1991
60-Month
49.9°F
(9.9°C)
48.4°F
(9.1°C)
1.5°F
(0.8°C)
114th Coolest
Coolest since:
1905, 1906
10th Warmest
Warmest to Date
2002
Ties: 2005, 2012, 2013, 2022

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