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 3. West

Average Temperature Rankings, April 2018

View Period (Months):
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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 2018
1-Month
43.7°F
(6.5°C)
51.3°F
(10.7°C)
-7.6°F
(-4.2°C)
1st Coolest
Coolest since:
2018
128th Warmest
Warmest since:
2010
Mar–Apr 2018
2-Month
41.2°F
(5.1°C)
45.3°F
(7.4°C)
-4.1°F
(-2.3°C)
11th Coolest
Coolest since:
1960
118th Warmest
Warmest since:
2012
Feb–Apr 2018
3-Month
37.1°F
(2.8°C)
39.5°F
(4.2°C)
-2.4°F
(-1.4°C)
31st Coolest
Coolest since:
1899
98th Warmest
Warmest since:
2012
Ties: 1926, 2015
Jan–Apr 2018
4-Month
33.6°F
(0.9°C)
35.6°F
(2.0°C)
-2.0°F
(-1.1°C)
26th Coolest
Coolest since:
1912
103rd Warmest
Warmest since:
2012
Ties: 1900, 1993
Dec 2017–Apr 2018
5-Month
32.7°F
(0.4°C)
34.2°F
(1.2°C)
-1.5°F
(-0.8°C)
27th Coolest
Coolest since:
1978
101st Warmest
Warmest since:
2012
Nov 2017–Apr 2018
6-Month
34.0°F
(1.1°C)
35.2°F
(1.8°C)
-1.2°F
(-0.7°C)
32nd Coolest
Coolest since:
1904, 1912, 1978
96th Warmest
Warmest since:
2012
Ties: 1937, 1959
Oct 2017–Apr 2018
7-Month
37.3°F
(2.9°C)
37.9°F
(3.3°C)
-0.6°F
(-0.4°C)
39th Coolest
Coolest since:
1912
89th Warmest
Warmest since:
2012
Ties: 1897, 1971, 2003
Sep 2017–Apr 2018
8-Month
41.2°F
(5.1°C)
41.4°F
(5.2°C)
-0.2°F
(-0.1°C)
47th Coolest
Coolest since:
1904, 1978
81st Warmest
Warmest since:
2017
Ties: 1900, 1924, 1930, 1986, 2003, 2013
Aug 2017–Apr 2018
9-Month
44.4°F
(6.9°C)
45.0°F
(7.2°C)
-0.6°F
(-0.3°C)
39th Coolest
Coolest since:
1978
89th Warmest
Warmest since:
2017
Ties: 1952, 1986
Jul 2017–Apr 2018
10-Month
47.6°F
(8.7°C)
48.1°F
(8.9°C)
-0.5°F
(-0.2°C)
42nd Coolest
Coolest since:
1904
86th Warmest
Warmest since:
2012
Ties: 1906, 1971
Jun 2017–Apr 2018
11-Month
49.9°F
(9.9°C)
50.3°F
(10.2°C)
-0.4°F
(-0.3°C)
47th Coolest
Coolest since:
1904
81st Warmest
Warmest since:
2017
Ties: 1906, 1911, 1973
May 2017–Apr 2018
12-Month
50.9°F
(10.5°C)
51.3°F
(10.7°C)
-0.4°F
(-0.2°C)
46th Coolest
Coolest since:
1918
82nd Warmest
Warmest since:
2017
Ties: 1906, 1961, 1963
Nov 2016–Apr 2018
18-Month
47.5°F
(8.6°C)
45.9°F
(7.7°C)
1.6°F
(0.9°C)
110th Coolest
Coolest since:
1979
17th Warmest
Warmest since:
2017
Ties: 1988, 2003, 2005
May 2016–Apr 2018
24-Month
53.0°F
(11.7°C)
51.3°F
(10.7°C)
1.7°F
(1.0°C)
116th Coolest
Coolest since:
1905
11th Warmest
Warmest since:
2017
Ties: 1954, 1999, 2007
May 2015–Apr 2018
36-Month
53.4°F
(11.9°C)
51.3°F
(10.7°C)
2.1°F
(1.2°C)
125th Coolest
Coolest since:
1979
1st Warmest
Warmest to Date
2018
May 2014–Apr 2018
48-Month
52.5°F
(11.4°C)
51.2°F
(10.7°C)
1.3°F
(0.7°C)
116th Coolest
Coolest since:
1980
9th Warmest
Warmest since:
1935
Ties: 1933, 1956, 2001
May 2013–Apr 2018
60-Month
51.7°F
(10.9°C)
51.2°F
(10.7°C)
0.5°F
(0.2°C)
81st Coolest
Coolest since:
1906, 1979
43rd Warmest
Warmest since:
1935
Ties: 1946, 1955, 1988

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