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 8. Southwest

Average Temperature Rankings, April 2013

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 2013
1-Month
54.4°F
(12.4°C)
55.3°F
(12.9°C)
-0.9°F
(-0.5°C)
45th Coolest
Coolest since:
1907
84th Warmest
Warmest since:
1896
Ties: 1910, 1952
Mar–Apr 2013
2-Month
46.8°F
(8.2°C)
49.9°F
(9.9°C)
-3.1°F
(-1.7°C)
12th Coolest
Coolest since:
1926, 1960
117th Warmest
Warmest since:
2012
Ties: 1904, 1980, 2018
Feb–Apr 2013
3-Month
43.3°F
(6.3°C)
44.9°F
(7.2°C)
-1.6°F
(-0.9°C)
35th Coolest
Coolest since:
1899
94th Warmest
Warmest since:
2012
Ties: 1940, 1941
Jan–Apr 2013
4-Month
41.2°F
(5.1°C)
41.4°F
(5.2°C)
-0.2°F
(-0.1°C)
57th Coolest
Coolest since:
1978
72nd Warmest
Warmest since:
2012
Ties: 1923, 1961, 2022
Dec 2012–Apr 2013
5-Month
41.2°F
(5.1°C)
40.1°F
(4.5°C)
1.1°F
(0.6°C)
81st Coolest
Coolest since:
1978
47th Warmest
Warmest since:
2012
Ties: 1909, 1989
Nov 2012–Apr 2013
6-Month
41.7°F
(5.4°C)
40.9°F
(4.9°C)
0.8°F
(0.5°C)
82nd Coolest
Coolest since:
1912
46th Warmest
Warmest since:
2012
Ties: 1903, 1910, 1914, 1987
Oct 2012–Apr 2013
7-Month
43.7°F
(6.5°C)
43.3°F
(6.3°C)
0.4°F
(0.2°C)
76th Coolest
Coolest since:
1899, 1978
52nd Warmest
Warmest since:
2012
Ties: 1945, 1966, 2011
Sep 2012–Apr 2013
8-Month
46.6°F
(8.1°C)
46.4°F
(8.0°C)
0.2°F
(0.1°C)
56th Coolest
Coolest since:
1918
72nd Warmest
Warmest since:
2017
Ties: 1896, 1910, 1989, 2010
Aug 2012–Apr 2013
9-Month
50.0°F
(10.0°C)
49.8°F
(9.9°C)
0.2°F
(0.1°C)
68th Coolest
Coolest since:
1918
60th Warmest
Warmest since:
2017
Ties: 1950, 1983, 1985
Jul 2012–Apr 2013
10-Month
53.4°F
(11.9°C)
52.5°F
(11.4°C)
0.9°F
(0.5°C)
89th Coolest
Coolest since:
1918
39th Warmest
Warmest since:
2012
Ties: 1909, 1914, 1925, 1953, 2019
Jun 2012–Apr 2013
11-Month
55.4°F
(13.0°C)
54.5°F
(12.5°C)
0.9°F
(0.5°C)
90th Coolest
Coolest since:
1918
38th Warmest
Warmest since:
2012, 2017
Ties: 1898, 1923, 1946, 1987, 2004
May 2012–Apr 2013
12-Month
56.7°F
(13.7°C)
55.4°F
(13.0°C)
1.3°F
(0.7°C)
102nd Coolest
Coolest since:
1918
26th Warmest
Warmest since:
2012, 2017
Ties: 1934, 1953, 1974, 2005
Nov 2011–Apr 2013
18-Month
53.7°F
(12.1°C)
50.6°F
(10.3°C)
3.1°F
(1.8°C)
125th Coolest
Coolest since:
1979
2nd Warmest
Warmest to Date
2017
May 2011–Apr 2013
24-Month
58.0°F
(14.4°C)
55.4°F
(13.0°C)
2.6°F
(1.4°C)
125th Coolest
Coolest since:
1978
2nd Warmest
Warmest since:
2017
Ties: 2012
May 2010–Apr 2013
36-Month
57.6°F
(14.2°C)
55.3°F
(12.9°C)
2.3°F
(1.3°C)
124th Coolest
Coolest since:
1979
2nd Warmest
Warmest to Date
2018
May 2009–Apr 2013
48-Month
57.0°F
(13.9°C)
55.4°F
(13.0°C)
1.6°F
(0.9°C)
121st Coolest
Coolest since:
1980
4th Warmest
Warmest since:
2019
Ties: 2002, 2008, 2018
May 2008–Apr 2013
60-Month
56.7°F
(13.7°C)
55.4°F
(13.0°C)
1.3°F
(0.7°C)
117th Coolest
Coolest since:
1980, 1981
7th Warmest
Warmest since:
2020
Ties: 2002, 2003, 2006, 2009, 2012

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