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 1929

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
April 1929
1-Month		57.7°F
(14.3°C)		55.3°F
(12.9°C)		2.4°F
(1.4°C)		98th Coolest
Coolest since:
1907
32nd Warmest
Warmest since:
1896
Ties: 2005
Mar–Apr 1929
2-Month		53.7°F
(12.1°C)		50.0°F
(10.0°C)		3.7°F
(2.1°C)		113th Coolest
Coolest since:
1960
17th Warmest
Warmest since:
2012
Ties: 1963, 2007
Feb–Apr 1929
3-Month		44.8°F
(7.1°C)		44.9°F
(7.2°C)		-0.1°F
(-0.1°C)		59th Coolest
Coolest since:
1899
71st Warmest
Warmest since:
2012
Ties: 1949
Jan–Apr 1929
4-Month		40.6°F
(4.8°C)		41.5°F
(5.3°C)		-0.9°F
(-0.5°C)		44th Coolest
Coolest since:
1978
86th Warmest
Warmest since:
2012
Dec 1928–Apr 1929
5-Month		39.7°F
(4.3°C)		40.1°F
(4.5°C)		-0.4°F
(-0.2°C)		47th Coolest
Coolest since:
1978
82nd Warmest
Warmest since:
2012
Ties: 1937, 1943
Nov 1928–Apr 1929
6-Month		40.5°F
(4.7°C)		40.9°F
(4.9°C)		-0.4°F
(-0.2°C)		45th Coolest
Coolest since:
1912
84th Warmest
Warmest since:
2012
Ties: 1928
Oct 1928–Apr 1929
7-Month		43.3°F
(6.3°C)		43.2°F
(6.2°C)		0.1°F
(0.1°C)		54th Coolest
Coolest since:
1899, 1978
75th Warmest
Warmest since:
2012
Ties: 1989, 2018
Sep 1928–Apr 1929
8-Month		46.0°F
(7.8°C)		46.5°F
(8.1°C)		-0.5°F
(-0.3°C)		38th Coolest
Coolest since:
1918
91st Warmest
Warmest since:
2017
Ties: 1897, 1900, 1917
Aug 1928–Apr 1929
9-Month		49.4°F
(9.7°C)		49.8°F
(9.9°C)		-0.4°F
(-0.2°C)		38th Coolest
Coolest since:
1918
91st Warmest
Warmest since:
2017
Ties: 1897, 1913, 1915, 1916, 1947
Jul 1928–Apr 1929
10-Month		52.3°F
(11.3°C)		52.6°F
(11.4°C)		-0.3°F
(-0.1°C)		46th Coolest
Coolest since:
1918
83rd Warmest
Warmest since:
2012
Ties: 1900, 1952, 1961, 1971
Jun 1928–Apr 1929
11-Month		53.7°F
(12.1°C)		54.5°F
(12.5°C)		-0.8°F
(-0.4°C)		28th Coolest
Coolest since:
1918
101st Warmest
Warmest since:
2012, 2017
Ties: 1913, 1916, 1997
May 1928–Apr 1929
12-Month		54.6°F
(12.6°C)		55.4°F
(13.0°C)		-0.8°F
(-0.4°C)		27th Coolest
Coolest since:
1918
102nd Warmest
Warmest since:
2012, 2017
Ties: 1911, 1916, 1930
Nov 1927–Apr 1929
18-Month		49.9°F
(9.9°C)		50.5°F
(10.3°C)		-0.6°F
(-0.4°C)		32nd Coolest
Coolest since:
1905, 1979
96th Warmest
Warmest since:
2017
Ties: 1930, 1968, 1994
May 1927–Apr 1929
24-Month		54.7°F
(12.6°C)		55.4°F
(13.0°C)		-0.7°F
(-0.4°C)		28th Coolest
Coolest since:
1978
100th Warmest
Warmest since:
2017
May 1926–Apr 1929
36-Month		55.1°F
(12.8°C)		55.4°F
(13.0°C)		-0.3°F
(-0.2°C)		40th Coolest
Coolest since:
1979
87th Warmest
Warmest since:
2018
Ties: 1972, 1996, 1997
May 1925–Apr 1929
48-Month		54.9°F
(12.7°C)		55.3°F
(12.9°C)		-0.4°F
(-0.2°C)		25th Coolest
Coolest since:
1980
101st Warmest
Warmest since:
2019
Ties: 1899, 1914, 1965, 1972
May 1924–Apr 1929
60-Month		55.0°F
(12.8°C)		55.3°F
(12.9°C)		-0.3°F
(-0.1°C)		31st Coolest
Coolest since:
1980, 1981
94th Warmest
Warmest since:
2020
Ties: 1900, 1913, 1914, 1921, 1961, 1977, 1986

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