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 1990

View Period (Months):
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  • Record Coolest
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 1990
1-Month
53.7°F
(12.1°C)
55.3°F
(12.9°C)
-1.6°F
(-0.8°C)
34th Coolest
Coolest since:
1907
95th Warmest
Warmest since:
1896
Ties: 1944, 1949, 2007
Mar–Apr 1990
2-Month
51.2°F
(10.7°C)
50.0°F
(10.0°C)
1.2°F
(0.7°C)
82nd Coolest
Coolest since:
1926, 1960
47th Warmest
Warmest since:
2012
Ties: 2022
Feb–Apr 1990
3-Month
47.8°F
(8.8°C)
45.0°F
(7.2°C)
2.8°F
(1.6°C)
111th Coolest
Coolest since:
1899
18th Warmest
Warmest since:
2012
Ties: 1974, 1986
Jan–Apr 1990
4-Month
46.1°F
(7.8°C)
41.4°F
(5.2°C)
4.7°F
(2.6°C)
122nd Coolest
Coolest since:
1978
7th Warmest
Warmest since:
2012
Dec 1989–Apr 1990
5-Month
41.5°F
(5.3°C)
40.1°F
(4.5°C)
1.4°F
(0.8°C)
90th Coolest
Coolest since:
1978
38th Warmest
Warmest since:
2012
Ties: 1896, 1939, 1942
Nov 1989–Apr 1990
6-Month
42.2°F
(5.7°C)
40.9°F
(4.9°C)
1.3°F
(0.8°C)
95th Coolest
Coolest since:
1912
33rd Warmest
Warmest since:
2012
Ties: 1981
Oct 1989–Apr 1990
7-Month
44.6°F
(7.0°C)
43.3°F
(6.3°C)
1.3°F
(0.7°C)
96th Coolest
Coolest since:
1899, 1978
32nd Warmest
Warmest since:
2012
Ties: 1938, 1950, 1986
Sep 1989–Apr 1990
8-Month
47.2°F
(8.4°C)
46.4°F
(8.0°C)
0.8°F
(0.4°C)
85th Coolest
Coolest since:
1918
43rd Warmest
Warmest since:
2017
Ties: 1941, 1953, 1967
Aug 1989–Apr 1990
9-Month
50.4°F
(10.2°C)
49.8°F
(9.9°C)
0.6°F
(0.3°C)
82nd Coolest
Coolest since:
1918
46th Warmest
Warmest since:
2017
Ties: 1907, 1927, 1937, 1941, 1953
Jul 1989–Apr 1990
10-Month
53.0°F
(11.7°C)
52.5°F
(11.4°C)
0.5°F
(0.3°C)
74th Coolest
Coolest since:
1918
54th Warmest
Warmest since:
2012
Ties: 1989
Jun 1989–Apr 1990
11-Month
54.8°F
(12.7°C)
54.5°F
(12.5°C)
0.3°F
(0.2°C)
69th Coolest
Coolest since:
1918
59th Warmest
Warmest since:
2012, 2017
Ties: 1910, 1949, 1964, 1985, 1986, 1988
May 1989–Apr 1990
12-Month
55.4°F
(13.0°C)
55.4°F
(13.0°C)
0.0°F
(0.0°C)
54th Coolest
Coolest since:
1918
74th Warmest
Warmest since:
2012, 2017
Ties: 1897, 1900, 1925, 1956, 1985, 2009
Nov 1988–Apr 1990
18-Month
50.9°F
(10.5°C)
50.5°F
(10.3°C)
0.4°F
(0.2°C)
76th Coolest
Coolest since:
1979
51st Warmest
Warmest since:
2017
Ties: 1938, 1943, 1967, 1981, 1986, 1995, 2004
May 1988–Apr 1990
24-Month
55.7°F
(13.2°C)
55.4°F
(13.0°C)
0.3°F
(0.2°C)
78th Coolest
Coolest since:
1978
49th Warmest
Warmest since:
2017
Ties: 1898, 1920, 1921, 1950, 1967, 1973, 1993
May 1987–Apr 1990
36-Month
55.8°F
(13.2°C)
55.3°F
(12.9°C)
0.5°F
(0.3°C)
79th Coolest
Coolest since:
1979
47th Warmest
Warmest since:
2018
Ties: 1915, 1946, 1987, 2010, 2011
May 1986–Apr 1990
48-Month
56.0°F
(13.3°C)
55.4°F
(13.0°C)
0.6°F
(0.3°C)
87th Coolest
Coolest since:
1980
38th Warmest
Warmest since:
2019
Ties: 1991, 2004
May 1985–Apr 1990
60-Month
55.9°F
(13.3°C)
55.3°F
(12.9°C)
0.6°F
(0.4°C)
80th Coolest
Coolest since:
1980, 1981
44th Warmest
Warmest since:
2020
Ties: 1924, 1976, 1989

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