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 2. Northeast

Average Temperature Rankings, September 2012

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 2012
1-Month
63.1°F
(17.3°C)
63.7°F
(17.6°C)
-0.6°F
(-0.3°C)
50th Coolest
Coolest since:
1918
79th Warmest
Warmest since:
1897
Aug–Sep 2012
2-Month
67.4°F
(19.7°C)
67.4°F
(19.7°C)
0.0°F
(0.0°C)
58th Coolest
Coolest since:
1902
71st Warmest
Warmest since:
1947
Ties: 2014
Jul–Sep 2012
3-Month
71.5°F
(21.9°C)
69.3°F
(20.7°C)
2.2°F
(1.2°C)
113th Coolest
Coolest since:
1924
16th Warmest
Warmest since:
1936
Ties: 1947, 1998
Jun–Sep 2012
4-Month
71.5°F
(21.9°C)
69.2°F
(20.7°C)
2.3°F
(1.2°C)
117th Coolest
Coolest since:
1915
12th Warmest
Warmest since:
2005
Ties: 1919, 1995
May–Sep 2012
5-Month
70.1°F
(21.2°C)
67.1°F
(19.5°C)
3.0°F
(1.7°C)
122nd Coolest
Coolest since:
1924
7th Warmest
Warmest since:
1921, 1988
Apr–Sep 2012
6-Month
66.7°F
(19.3°C)
63.9°F
(17.7°C)
2.8°F
(1.6°C)
123rd Coolest
Coolest since:
1907
6th Warmest
Warmest since:
1921
Ties: 1955
Mar–Sep 2012
7-Month
64.7°F
(18.2°C)
59.9°F
(15.5°C)
4.8°F
(2.7°C)
128th Coolest
Coolest since:
1924
1st Warmest
Warmest to Date
2012
Feb–Sep 2012
8-Month
60.6°F
(15.9°C)
55.5°F
(13.1°C)
5.1°F
(2.8°C)
128th Coolest
Coolest since:
1904, 1917
1st Warmest
Warmest to Date
2012
Jan–Sep 2012
9-Month
57.0°F
(13.9°C)
51.7°F
(10.9°C)
5.3°F
(3.0°C)
128th Coolest
Coolest since:
1904, 1912
1st Warmest
Warmest to Date
2012
Dec 2011–Sep 2012
10-Month
54.7°F
(12.6°C)
49.1°F
(9.5°C)
5.6°F
(3.1°C)
127th Coolest
Coolest since:
1904
1st Warmest
Warmest to Date
2012
Nov 2011–Sep 2012
11-Month
53.6°F
(12.0°C)
48.1°F
(8.9°C)
5.5°F
(3.1°C)
127th Coolest
Coolest since:
1904
1st Warmest
Warmest to Date
2012
Oct 2011–Sep 2012
12-Month
53.6°F
(12.0°C)
48.5°F
(9.2°C)
5.1°F
(2.8°C)
127th Coolest
Coolest since:
1904
1st Warmest
Warmest to Date
2012
Apr 2011–Sep 2012
18-Month
57.3°F
(14.1°C)
53.6°F
(12.0°C)
3.7°F
(2.1°C)
127th Coolest
Coolest since:
1904
1st Warmest
Warmest to Date
2012
Oct 2010–Sep 2012
24-Month
51.2°F
(10.7°C)
48.5°F
(9.2°C)
2.7°F
(1.5°C)
123rd Coolest
Coolest since:
1918
4th Warmest
Warmest since:
2017
Oct 2009–Sep 2012
36-Month
51.0°F
(10.6°C)
48.4°F
(9.1°C)
2.6°F
(1.5°C)
123rd Coolest
Coolest since:
1979
3rd Warmest
Warmest since:
2000
Oct 2008–Sep 2012
48-Month
50.1°F
(10.1°C)
48.4°F
(9.1°C)
1.7°F
(1.0°C)
115th Coolest
Coolest since:
1905, 1918
10th Warmest
Warmest since:
2001, 2002, 2019
Oct 2007–Sep 2012
60-Month
49.9°F
(9.9°C)
48.4°F
(9.1°C)
1.5°F
(0.8°C)
113th Coolest
Coolest since:
1905, 1906
11th Warmest
Warmest since:
2002
Ties: 2005, 2013, 2022

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