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 1984

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
April 1984
1-Month		53.5°F
(11.9°C)		55.3°F
(12.9°C)		-1.8°F
(-1.0°C)		26th Coolest
Coolest since:
1907
103rd Warmest
Warmest since:
1896
Ties: 1980, 2020
Mar–Apr 1984
2-Month		46.0°F
(7.8°C)		50.0°F
(10.0°C)		-4.0°F
(-2.2°C)		4th Coolest
Coolest since:
1960
125th Warmest
Warmest since:
2012
Ties: 1947
Feb–Apr 1984
3-Month		43.9°F
(6.6°C)		44.9°F
(7.2°C)		-1.0°F
(-0.6°C)		47th Coolest
Coolest since:
1899
82nd Warmest
Warmest since:
2012
Jan–Apr 1984
4-Month		39.6°F
(4.2°C)		41.5°F
(5.3°C)		-1.9°F
(-1.1°C)		22nd Coolest
Coolest since:
1978
107th Warmest
Warmest since:
2012
Ties: 1996
Dec 1983–Apr 1984
5-Month		36.3°F
(2.4°C)		40.1°F
(4.5°C)		-3.8°F
(-2.1°C)		8th Coolest
Coolest since:
1978
120th Warmest
Warmest since:
2012
Ties: 1902
Nov 1983–Apr 1984
6-Month		38.2°F
(3.4°C)		40.9°F
(4.9°C)		-2.7°F
(-1.5°C)		13th Coolest
Coolest since:
1912
115th Warmest
Warmest since:
2012
Ties: 1970
Oct 1983–Apr 1984
7-Month		41.0°F
(5.0°C)		43.2°F
(6.2°C)		-2.2°F
(-1.2°C)		14th Coolest
Coolest since:
1899, 1978
114th Warmest
Warmest since:
2012
Ties: 1905, 1958
Sep 1983–Apr 1984
8-Month		44.6°F
(7.0°C)		46.5°F
(8.1°C)		-1.9°F
(-1.1°C)		15th Coolest
Coolest since:
1918
113th Warmest
Warmest since:
2017
Ties: 1905, 1996
Aug 1983–Apr 1984
9-Month		48.7°F
(9.3°C)		49.8°F
(9.9°C)		-1.1°F
(-0.6°C)		27th Coolest
Coolest since:
1918
101st Warmest
Warmest since:
2017
Ties: 1962
Jul 1983–Apr 1984
10-Month		51.9°F
(11.1°C)		52.6°F
(11.4°C)		-0.7°F
(-0.3°C)		31st Coolest
Coolest since:
1918
97th Warmest
Warmest since:
2012
Ties: 2001
Jun 1983–Apr 1984
11-Month		53.8°F
(12.1°C)		54.5°F
(12.5°C)		-0.7°F
(-0.4°C)		32nd Coolest
Coolest since:
1918
96th Warmest
Warmest since:
2012, 2017
Ties: 1920, 1926, 2001
May 1983–Apr 1984
12-Month		54.5°F
(12.5°C)		55.4°F
(13.0°C)		-0.9°F
(-0.5°C)		23rd Coolest
Coolest since:
1918
105th Warmest
Warmest since:
2012, 2017
Ties: 1920, 1926, 2015
Nov 1982–Apr 1984
18-Month		50.4°F
(10.2°C)		50.5°F
(10.3°C)		-0.1°F
(-0.1°C)		47th Coolest
Coolest since:
1905, 1979
80th Warmest
Warmest since:
2017
Ties: 1907, 1917, 1927, 1949, 1993
May 1982–Apr 1984
24-Month		55.1°F
(12.8°C)		55.4°F
(13.0°C)		-0.3°F
(-0.2°C)		36th Coolest
Coolest since:
1978
91st Warmest
Warmest since:
2017
Ties: 1902, 1903, 1941
May 1981–Apr 1984
36-Month		54.5°F
(12.5°C)		55.4°F
(13.0°C)		-0.9°F
(-0.5°C)		13th Coolest
Coolest since:
1979
113th Warmest
Warmest since:
2018
Ties: 1907, 1962, 1977
May 1980–Apr 1984
48-Month		55.1°F
(12.8°C)		55.3°F
(12.9°C)		-0.2°F
(-0.1°C)		38th Coolest
Coolest since:
1980
87th Warmest
Warmest since:
2019
Ties: 1901, 1928, 1931, 1951, 1960, 1973, 1997
May 1979–Apr 1984
60-Month		54.9°F
(12.7°C)		55.3°F
(12.9°C)		-0.4°F
(-0.2°C)		22nd Coolest
Coolest since:
1980, 1981
102nd Warmest
Warmest since:
2020
Ties: 1902, 1903, 1909, 1912, 1919, 1930, 1965, 1973

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