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 1957

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
April 1957
1-Month
57.4°F
(14.1°C)
55.3°F
(12.9°C)
2.1°F
(1.2°C)
94th Coolest
Coolest since:
1907
35th Warmest
Warmest since:
1896
Ties: 1895, 1970
Mar–Apr 1957
2-Month
50.4°F
(10.2°C)
50.0°F
(10.0°C)
0.4°F
(0.2°C)
70th Coolest
Coolest since:
1960
59th Warmest
Warmest since:
2012
Ties: 1936, 1988, 1989
Feb–Apr 1957
3-Month
46.9°F
(8.3°C)
44.9°F
(7.2°C)
2.0°F
(1.1°C)
97th Coolest
Coolest since:
1899
32nd Warmest
Warmest since:
2012
Ties: 2001, 2020
Jan–Apr 1957
4-Month
42.1°F
(5.6°C)
41.5°F
(5.3°C)
0.6°F
(0.3°C)
74th Coolest
Coolest since:
1978
55th Warmest
Warmest since:
2012
Ties: 1909, 1942
Dec 1956–Apr 1957
5-Month
41.7°F
(5.4°C)
40.1°F
(4.5°C)
1.6°F
(0.9°C)
96th Coolest
Coolest since:
1978
32nd Warmest
Warmest since:
2012
Ties: 1908, 1952, 2019
Nov 1956–Apr 1957
6-Month
42.1°F
(5.6°C)
40.9°F
(4.9°C)
1.2°F
(0.7°C)
93rd Coolest
Coolest since:
1912
35th Warmest
Warmest since:
2012
Ties: 1909, 1942, 1949, 1950
Oct 1956–Apr 1957
7-Month
44.9°F
(7.2°C)
43.2°F
(6.2°C)
1.7°F
(1.0°C)
102nd Coolest
Coolest since:
1899, 1978
26th Warmest
Warmest since:
2012
Ties: 1942, 2020
Sep 1956–Apr 1957
8-Month
47.9°F
(8.8°C)
46.5°F
(8.1°C)
1.4°F
(0.7°C)
101st Coolest
Coolest since:
1918
27th Warmest
Warmest since:
2017
Ties: 1935
Aug 1956–Apr 1957
9-Month
51.2°F
(10.7°C)
49.8°F
(9.9°C)
1.4°F
(0.8°C)
102nd Coolest
Coolest since:
1918
26th Warmest
Warmest since:
2017
Ties: 1925, 1935, 1938, 1981
Jul 1956–Apr 1957
10-Month
53.7°F
(12.1°C)
52.6°F
(11.4°C)
1.1°F
(0.7°C)
98th Coolest
Coolest since:
1918
30th Warmest
Warmest since:
2012
Ties: 1931, 1938
Jun 1956–Apr 1957
11-Month
55.6°F
(13.1°C)
54.5°F
(12.5°C)
1.1°F
(0.6°C)
97th Coolest
Coolest since:
1918
31st Warmest
Warmest since:
2012, 2017
Ties: 2005
May 1956–Apr 1957
12-Month
56.6°F
(13.7°C)
55.4°F
(13.0°C)
1.2°F
(0.7°C)
97th Coolest
Coolest since:
1918
31st Warmest
Warmest since:
2012, 2017
Nov 1955–Apr 1957
18-Month
51.0°F
(10.6°C)
50.5°F
(10.3°C)
0.5°F
(0.3°C)
82nd Coolest
Coolest since:
1905, 1979
45th Warmest
Warmest since:
2017
Ties: 1898, 1910, 1914, 1945, 1946
May 1955–Apr 1957
24-Month
56.0°F
(13.3°C)
55.4°F
(13.0°C)
0.6°F
(0.3°C)
88th Coolest
Coolest since:
1978
39th Warmest
Warmest since:
2017
Ties: 2011
May 1954–Apr 1957
36-Month
56.4°F
(13.6°C)
55.4°F
(13.0°C)
1.0°F
(0.6°C)
100th Coolest
Coolest since:
1979
26th Warmest
Warmest since:
2018
May 1953–Apr 1957
48-Month
56.8°F
(13.8°C)
55.3°F
(12.9°C)
1.5°F
(0.9°C)
116th Coolest
Coolest since:
1980
9th Warmest
Warmest since:
2019
Ties: 1956, 2007, 2022
May 1952–Apr 1957
60-Month
56.8°F
(13.8°C)
55.3°F
(12.9°C)
1.5°F
(0.9°C)
119th Coolest
Coolest since:
1980, 1981
5th Warmest
Warmest since:
2020
Ties: 2008

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