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 7. East Southeast

Average Temperature Rankings, April 1998

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
April 1998
1-Month		53.9°F
(12.2°C)		52.8°F
(11.6°C)		1.1°F
(0.6°C)		78th Coolest
Coolest since:
1907
52nd Warmest
Warmest since:
2010
Ties: 1927, 1945
Mar–Apr 1998
2-Month		48.0°F
(8.9°C)		47.2°F
(8.4°C)		0.8°F
(0.5°C)		77th Coolest
Coolest since:
1926
53rd Warmest
Warmest since:
2012
Ties: 1918, 1957
Feb–Apr 1998
3-Month		45.7°F
(7.6°C)		42.0°F
(5.6°C)		3.7°F
(2.0°C)		116th Coolest
Coolest since:
1978
14th Warmest
Warmest since:
2012
Jan–Apr 1998
4-Month		43.0°F
(6.1°C)		38.4°F
(3.6°C)		4.6°F
(2.5°C)		122nd Coolest
Coolest since:
1978
8th Warmest
Warmest since:
2012
Dec 1997–Apr 1998
5-Month		41.0°F
(5.0°C)		37.1°F
(2.8°C)		3.9°F
(2.2°C)		122nd Coolest
Coolest since:
1978
7th Warmest
Warmest since:
2012
Nov 1997–Apr 1998
6-Month		40.8°F
(4.9°C)		37.9°F
(3.3°C)		2.9°F
(1.6°C)		113th Coolest
Coolest since:
1978
16th Warmest
Warmest since:
2012
Oct 1997–Apr 1998
7-Month		42.9°F
(6.1°C)		40.5°F
(4.7°C)		2.4°F
(1.4°C)		111th Coolest
Coolest since:
1978
18th Warmest
Warmest since:
2012
Sep 1997–Apr 1998
8-Month		46.0°F
(7.8°C)		43.8°F
(6.6°C)		2.2°F
(1.2°C)		111th Coolest
Coolest since:
1904, 1918, 1978
18th Warmest
Warmest since:
2017
Ties: 1995, 2020, 2022
Aug 1997–Apr 1998
9-Month		48.9°F
(9.4°C)		47.2°F
(8.4°C)		1.7°F
(1.0°C)		107th Coolest
Coolest since:
1918
22nd Warmest
Warmest since:
2017
Ties: 1919, 1972, 2005
Jul 1997–Apr 1998
10-Month		51.6°F
(10.9°C)		50.1°F
(10.1°C)		1.5°F
(0.8°C)		106th Coolest
Coolest since:
1918
23rd Warmest
Warmest since:
2012
Ties: 1937
Jun 1997–Apr 1998
11-Month		53.4°F
(11.9°C)		52.2°F
(11.2°C)		1.2°F
(0.7°C)		101st Coolest
Coolest since:
1904, 1918
28th Warmest
Warmest since:
2012
Ties: 1914, 2011
May 1997–Apr 1998
12-Month		53.8°F
(12.1°C)		53.1°F
(11.7°C)		0.7°F
(0.4°C)		82nd Coolest
Coolest since:
1918
47th Warmest
Warmest since:
2012
Ties: 1909, 1983, 2004, 2021
Nov 1996–Apr 1998
18-Month		48.4°F
(9.1°C)		48.0°F
(8.9°C)		0.4°F
(0.2°C)		76th Coolest
Coolest since:
1905, 1979
52nd Warmest
Warmest since:
2017
Ties: 1946, 1949, 1972, 1986, 2004
May 1996–Apr 1998
24-Month		53.2°F
(11.8°C)		53.1°F
(11.7°C)		0.1°F
(0.1°C)		67th Coolest
Coolest since:
1978
61st Warmest
Warmest since:
2017
Ties: 1910, 1966, 1967, 1975
May 1995–Apr 1998
36-Month		52.8°F
(11.6°C)		53.0°F
(11.7°C)		-0.2°F
(-0.1°C)		39th Coolest
Coolest since:
1979
88th Warmest
Warmest since:
2018
Ties: 1902, 1911, 1929, 1959, 1965, 1995
May 1994–Apr 1998
48-Month		53.1°F
(11.7°C)		53.0°F
(11.7°C)		0.1°F
(0.0°C)		54th Coolest
Coolest since:
1980
72nd Warmest
Warmest since:
2019
Ties: 1951, 1967
May 1993–Apr 1998
60-Month		53.0°F
(11.7°C)		53.0°F
(11.7°C)		0.0°F
(0.0°C)		51st Coolest
Coolest since:
1981
74th Warmest
Warmest since:
2020
Ties: 1951, 1952, 1967

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