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 1917

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 1917
1-Month
53.6°F
(12.0°C)
55.3°F
(12.9°C)
-1.7°F
(-0.9°C)
29th Coolest
Coolest since:
1907
100th Warmest
Warmest since:
1896
Ties: 1911, 1956, 1973, 1979
Mar–Apr 1917
2-Month
49.7°F
(9.8°C)
50.0°F
(10.0°C)
-0.3°F
(-0.2°C)
60th Coolest
Coolest since:
1926, 1960
69th Warmest
Warmest since:
2012
Feb–Apr 1917
3-Month
43.5°F
(6.4°C)
44.9°F
(7.2°C)
-1.4°F
(-0.8°C)
40th Coolest
Coolest since:
1899
89th Warmest
Warmest since:
2012
Jan–Apr 1917
4-Month
41.1°F
(5.1°C)
41.4°F
(5.2°C)
-0.3°F
(-0.1°C)
54th Coolest
Coolest since:
1978
75th Warmest
Warmest since:
2012
Ties: 1983, 1994
Dec 1916–Apr 1917
5-Month
39.4°F
(4.1°C)
40.1°F
(4.5°C)
-0.7°F
(-0.4°C)
42nd Coolest
Coolest since:
1978
86th Warmest
Warmest since:
2012
Nov 1916–Apr 1917
6-Month
40.6°F
(4.8°C)
40.8°F
(4.9°C)
-0.2°F
(-0.1°C)
47th Coolest
Coolest since:
1912
81st Warmest
Warmest since:
2012
Ties: 1959, 1994
Oct 1916–Apr 1917
7-Month
43.0°F
(6.1°C)
43.3°F
(6.3°C)
-0.3°F
(-0.2°C)
46th Coolest
Coolest since:
1899, 1978
82nd Warmest
Warmest since:
2012
Ties: 1897, 1901, 1959, 1975, 1988
Sep 1916–Apr 1917
8-Month
46.0°F
(7.8°C)
46.5°F
(8.1°C)
-0.5°F
(-0.3°C)
38th Coolest
Coolest since:
1918
90th Warmest
Warmest since:
2017
Ties: 1897, 1900, 1929
Aug 1916–Apr 1917
9-Month
49.5°F
(9.7°C)
49.8°F
(9.9°C)
-0.3°F
(-0.2°C)
44th Coolest
Coolest since:
1918
84th Warmest
Warmest since:
2017
Ties: 1959, 1973
Jul 1916–Apr 1917
10-Month
52.7°F
(11.5°C)
52.6°F
(11.4°C)
0.1°F
(0.1°C)
60th Coolest
Coolest since:
1918
68th Warmest
Warmest since:
2012
Ties: 1908, 1915, 1964
Jun 1916–Apr 1917
11-Month
54.2°F
(12.3°C)
54.5°F
(12.5°C)
-0.3°F
(-0.2°C)
46th Coolest
Coolest since:
1918
82nd Warmest
Warmest since:
2012, 2017
Ties: 1961, 1965, 2010
May 1916–Apr 1917
12-Month
55.3°F
(12.9°C)
55.4°F
(13.0°C)
-0.1°F
(-0.1°C)
49th Coolest
Coolest since:
1918
79th Warmest
Warmest since:
2012, 2017
Ties: 1896, 1943, 1944, 1965
Nov 1915–Apr 1917
18-Month
50.4°F
(10.2°C)
50.5°F
(10.3°C)
-0.1°F
(-0.1°C)
47th Coolest
Coolest since:
1979
80th Warmest
Warmest since:
2017
Ties: 1907, 1927, 1949, 1984, 1993
May 1915–Apr 1917
24-Month
54.9°F
(12.7°C)
55.3°F
(12.9°C)
-0.4°F
(-0.2°C)
31st Coolest
Coolest since:
1978
96th Warmest
Warmest since:
2017
May 1914–Apr 1917
36-Month
55.3°F
(12.9°C)
55.3°F
(12.9°C)
0.0°F
(0.0°C)
49th Coolest
Coolest since:
1979
77th Warmest
Warmest since:
2018
Ties: 1903, 1927, 1965, 1975, 1983
May 1913–Apr 1917
48-Month
55.6°F
(13.1°C)
55.4°F
(13.0°C)
0.2°F
(0.1°C)
66th Coolest
Coolest since:
1980
59th Warmest
Warmest to Date
2019
Ties: 1947, 1975, 1995
May 1912–Apr 1917
60-Month
55.4°F
(13.0°C)
55.3°F
(12.9°C)
0.1°F
(0.1°C)
55th Coolest
Coolest since:
1980, 1981
69th Warmest
Warmest to Date
2020
Ties: 1927, 1967, 1974, 1996

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