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 1929

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
April 1929
1-Month		53.4°F
(11.9°C)		51.3°F
(10.7°C)		2.1°F
(1.2°C)		95th Coolest
Coolest since:
2018
35th Warmest
Warmest since:
2010
Mar–Apr 1929
2-Month		49.1°F
(9.5°C)		45.2°F
(7.3°C)		3.9°F
(2.2°C)		112th Coolest
Coolest since:
1960
18th Warmest
Warmest since:
2012
Ties: 1987, 2017
Feb–Apr 1929
3-Month		39.5°F
(4.2°C)		39.5°F
(4.2°C)		0.0°F
(0.0°C)		66th Coolest
Coolest since:
1899
64th Warmest
Warmest since:
2012
Jan–Apr 1929
4-Month		33.9°F
(1.1°C)		35.6°F
(2.0°C)		-1.7°F
(-0.9°C)		33rd Coolest
Coolest since:
1912
97th Warmest
Warmest since:
2012
Ties: 1975
Dec 1928–Apr 1929
5-Month		33.4°F
(0.8°C)		34.2°F
(1.2°C)		-0.8°F
(-0.4°C)		40th Coolest
Coolest since:
1978
89th Warmest
Warmest since:
2012
Ties: 1937
Nov 1928–Apr 1929
6-Month		34.6°F
(1.4°C)		35.2°F
(1.8°C)		-0.6°F
(-0.4°C)		45th Coolest
Coolest since:
1904, 1912, 1978
84th Warmest
Warmest since:
2012
Oct 1928–Apr 1929
7-Month		37.8°F
(3.2°C)		37.9°F
(3.3°C)		-0.1°F
(-0.1°C)		49th Coolest
Coolest since:
1912
80th Warmest
Warmest since:
2012
Ties: 1916, 1930, 1952, 1968, 1973, 1988, 1989, 2011
Sep 1928–Apr 1929
8-Month		40.8°F
(4.9°C)		41.5°F
(5.3°C)		-0.7°F
(-0.4°C)		38th Coolest
Coolest since:
1904, 1978
91st Warmest
Warmest since:
2017
Ties: 1943
Aug 1928–Apr 1929
9-Month		44.5°F
(6.9°C)		45.0°F
(7.2°C)		-0.5°F
(-0.3°C)		42nd Coolest
Coolest since:
1978
87th Warmest
Warmest since:
2017
Ties: 1971, 2009
Jul 1928–Apr 1929
10-Month		47.7°F
(8.7°C)		48.1°F
(8.9°C)		-0.4°F
(-0.2°C)		45th Coolest
Coolest since:
1904
84th Warmest
Warmest since:
2012
Ties: 1917, 1930, 2019
Jun 1928–Apr 1929
11-Month		49.4°F
(9.7°C)		50.3°F
(10.2°C)		-0.9°F
(-0.5°C)		32nd Coolest
Coolest since:
1904
97th Warmest
Warmest since:
2017
Ties: 1965, 1986
May 1928–Apr 1929
12-Month		50.5°F
(10.3°C)		51.3°F
(10.7°C)		-0.8°F
(-0.4°C)		29th Coolest
Coolest since:
1918
100th Warmest
Warmest since:
2017
Ties: 1911, 1930, 1958, 2009
Nov 1927–Apr 1929
18-Month		45.6°F
(7.6°C)		45.9°F
(7.7°C)		-0.3°F
(-0.1°C)		46th Coolest
Coolest since:
1979
82nd Warmest
Warmest since:
2017
Ties: 1908, 1925, 1958, 1996
May 1927–Apr 1929
24-Month		50.8°F
(10.4°C)		51.2°F
(10.7°C)		-0.4°F
(-0.3°C)		35th Coolest
Coolest since:
1905
93rd Warmest
Warmest since:
2017
Ties: 1903, 1961
May 1926–Apr 1929
36-Month		51.0°F
(10.6°C)		51.2°F
(10.7°C)		-0.2°F
(-0.1°C)		45th Coolest
Coolest since:
1979
82nd Warmest
Warmest since:
2018
Ties: 1908, 1975, 1986, 2011
May 1925–Apr 1929
48-Month		50.7°F
(10.4°C)		51.2°F
(10.7°C)		-0.5°F
(-0.3°C)		25th Coolest
Coolest since:
1980
101st Warmest
Warmest since:
1935
Ties: 1900, 1912, 1927, 1928
May 1924–Apr 1929
60-Month		50.7°F
(10.4°C)		51.2°F
(10.7°C)		-0.5°F
(-0.3°C)		20th Coolest
Coolest since:
1906, 1979
105th Warmest
Warmest since:
1935
Ties: 1903, 1909, 1912, 1918, 1919, 1969, 1973

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