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 1928

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
April 1928
1-Month		51.1°F
(10.6°C)		55.3°F
(12.9°C)		-4.2°F
(-2.3°C)		11th Coolest
Coolest since:
1907
119th Warmest
Warmest since:
1896
Mar–Apr 1928
2-Month		47.6°F
(8.7°C)		50.0°F
(10.0°C)		-2.4°F
(-1.3°C)		25th Coolest
Coolest since:
1960
105th Warmest
Warmest since:
2012
Ties: 1920
Feb–Apr 1928
3-Month		43.7°F
(6.5°C)		44.9°F
(7.2°C)		-1.2°F
(-0.7°C)		43rd Coolest
Coolest since:
1899
87th Warmest
Warmest since:
2012
Ties: 1968, 1971
Jan–Apr 1928
4-Month		40.9°F
(4.9°C)		41.5°F
(5.3°C)		-0.6°F
(-0.4°C)		48th Coolest
Coolest since:
1978
82nd Warmest
Warmest since:
2012
Ties: 1975, 2008
Dec 1927–Apr 1928
5-Month		39.1°F
(3.9°C)		40.1°F
(4.5°C)		-1.0°F
(-0.6°C)		34th Coolest
Coolest since:
1978
95th Warmest
Warmest since:
2012
Ties: 1959, 2018
Nov 1927–Apr 1928
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: 1929
Oct 1927–Apr 1928
7-Month		43.4°F
(6.3°C)		43.2°F
(6.2°C)		0.2°F
(0.1°C)		57th Coolest
Coolest since:
1899, 1978
72nd Warmest
Warmest since:
2012
Ties: 1911, 1916, 1943, 2010
Sep 1927–Apr 1928
8-Month		47.1°F
(8.4°C)		46.5°F
(8.1°C)		0.6°F
(0.3°C)		81st Coolest
Coolest since:
1918
48th Warmest
Warmest since:
2017
Ties: 1907, 1927, 1964
Aug 1927–Apr 1928
9-Month		49.7°F
(9.8°C)		49.8°F
(9.9°C)		-0.1°F
(-0.1°C)		52nd Coolest
Coolest since:
1918
77th Warmest
Warmest since:
2017
Ties: 1911, 1933, 1956, 1961, 2003, 2018
Jul 1927–Apr 1928
10-Month		52.2°F
(11.2°C)		52.6°F
(11.4°C)		-0.4°F
(-0.2°C)		36th Coolest
Coolest since:
1918
93rd Warmest
Warmest since:
2012
Ties: 1897, 1913, 1924, 1930, 1944, 1947, 1959, 1973, 1994
Jun 1927–Apr 1928
11-Month		53.9°F
(12.2°C)		54.5°F
(12.5°C)		-0.6°F
(-0.3°C)		36th Coolest
Coolest since:
1918
93rd Warmest
Warmest since:
2012, 2017
Ties: 1930, 1959
May 1927–Apr 1928
12-Month		54.7°F
(12.6°C)		55.4°F
(13.0°C)		-0.7°F
(-0.4°C)		31st Coolest
Coolest since:
1918
98th Warmest
Warmest since:
2012, 2017
Ties: 1906, 1908, 1940, 1960
Nov 1926–Apr 1928
18-Month		50.3°F
(10.2°C)		50.5°F
(10.3°C)		-0.2°F
(-0.1°C)		41st Coolest
Coolest since:
1905, 1979
87th Warmest
Warmest since:
2017
Ties: 1908, 1911, 1924, 1937, 1965
May 1926–Apr 1928
24-Month		55.3°F
(12.9°C)		55.4°F
(13.0°C)		-0.1°F
(-0.1°C)		46th Coolest
Coolest since:
1978
82nd Warmest
Warmest since:
2017
Ties: 1944, 1948, 1958, 1964, 1998, 2010, 2014
May 1925–Apr 1928
36-Month		55.0°F
(12.8°C)		55.4°F
(13.0°C)		-0.4°F
(-0.2°C)		33rd Coolest
Coolest since:
1979
94th Warmest
Warmest since:
2018
Ties: 1908, 1914, 1953, 1995, 1998, 2015
May 1924–Apr 1928
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
88th Warmest
Warmest since:
2019
Ties: 1901, 1931, 1951, 1960, 1973, 1984, 1997
May 1923–Apr 1928
60-Month		55.1°F
(12.8°C)		55.3°F
(12.9°C)		-0.2°F
(-0.1°C)		39th Coolest
Coolest since:
1980, 1981
86th Warmest
Warmest since:
2020
Ties: 1901, 1915, 1951, 1952, 1960, 1966, 1968

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