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 1990

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
April 1990
1-Month		50.4°F
(10.2°C)		51.3°F
(10.7°C)		-0.9°F
(-0.5°C)		46th Coolest
Coolest since:
2018
84th Warmest
Warmest since:
2010
Mar–Apr 1990
2-Month		47.1°F
(8.4°C)		45.2°F
(7.3°C)		1.9°F
(1.1°C)		94th Coolest
Coolest since:
1960
36th Warmest
Warmest since:
2012
Ties: 1948
Feb–Apr 1990
3-Month		42.9°F
(6.1°C)		39.5°F
(4.2°C)		3.4°F
(1.9°C)		110th Coolest
Coolest since:
1899
20th Warmest
Warmest since:
2012
Ties: 1981, 1992
Jan–Apr 1990
4-Month		41.0°F
(5.0°C)		35.6°F
(2.0°C)		5.4°F
(3.0°C)		124th Coolest
Coolest since:
1912
6th Warmest
Warmest since:
2012
Dec 1989–Apr 1990
5-Month		36.2°F
(2.3°C)		34.2°F
(1.2°C)		2.0°F
(1.1°C)		102nd Coolest
Coolest since:
1978
27th Warmest
Warmest since:
2012
Nov 1989–Apr 1990
6-Month		36.9°F
(2.7°C)		35.2°F
(1.8°C)		1.7°F
(0.9°C)		97th Coolest
Coolest since:
1904, 1912, 1978
32nd Warmest
Warmest since:
2012
Ties: 2021
Oct 1989–Apr 1990
7-Month		39.5°F
(4.2°C)		37.9°F
(3.3°C)		1.6°F
(0.9°C)		100th Coolest
Coolest since:
1912
29th Warmest
Warmest since:
2012
Ties: 1955
Sep 1989–Apr 1990
8-Month		42.5°F
(5.8°C)		41.5°F
(5.3°C)		1.0°F
(0.5°C)		88th Coolest
Coolest since:
1904, 1978
41st Warmest
Warmest since:
2017
Ties: 1964
Aug 1989–Apr 1990
9-Month		45.9°F
(7.7°C)		45.0°F
(7.2°C)		0.9°F
(0.5°C)		90th Coolest
Coolest since:
1978
39th Warmest
Warmest since:
2017
Ties: 2008
Jul 1989–Apr 1990
10-Month		49.0°F
(9.4°C)		48.1°F
(8.9°C)		0.9°F
(0.5°C)		90th Coolest
Coolest since:
1904
39th Warmest
Warmest since:
2012
Ties: 1915, 2007
Jun 1989–Apr 1990
11-Month		50.9°F
(10.5°C)		50.3°F
(10.2°C)		0.6°F
(0.3°C)		84th Coolest
Coolest since:
1904
45th Warmest
Warmest since:
2017
Ties: 1972, 2011, 2021
May 1989–Apr 1990
12-Month		51.6°F
(10.9°C)		51.3°F
(10.7°C)		0.3°F
(0.2°C)		72nd Coolest
Coolest since:
1918
57th Warmest
Warmest since:
2017
Ties: 1933, 1949, 1972
Nov 1988–Apr 1990
18-Month		46.4°F
(8.0°C)		45.9°F
(7.7°C)		0.5°F
(0.3°C)		84th Coolest
Coolest since:
1979
44th Warmest
Warmest since:
2017
Ties: 1921, 1943, 1945, 1947
May 1988–Apr 1990
24-Month		52.0°F
(11.1°C)		51.2°F
(10.7°C)		0.8°F
(0.4°C)		96th Coolest
Coolest since:
1905
32nd Warmest
Warmest since:
2017
Ties: 1940, 1956, 2002, 2016, 2021, 2022
May 1987–Apr 1990
36-Month		52.1°F
(11.2°C)		51.2°F
(10.7°C)		0.9°F
(0.5°C)		96th Coolest
Coolest since:
1979
31st Warmest
Warmest since:
2018
Ties: 1943, 1991, 2022
May 1986–Apr 1990
48-Month		52.3°F
(11.3°C)		51.2°F
(10.7°C)		1.1°F
(0.6°C)		107th Coolest
Coolest since:
1980
19th Warmest
Warmest since:
1935
Ties: 1940, 1955, 2005, 2013, 2023
May 1985–Apr 1990
60-Month		52.0°F
(11.1°C)		51.2°F
(10.7°C)		0.8°F
(0.4°C)		97th Coolest
Coolest since:
1906, 1979
28th Warmest
Warmest since:
1935
Ties: 1924, 1932, 2001, 2012, 2013

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