Divisional Rankings

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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 1956

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
April 1956 1-Month	53.6°F (12.0°C)	55.3°F (12.9°C)	-1.7°F (-0.9°C)	29th Coolest	Coolest since: 1953	1907
	53.6°F (12.0°C)	55.3°F (12.9°C)	-1.7°F (-0.9°C)	100th Warmest	Warmest since: 1955	1896
	Ties: 1911, 1917, 1973, 1979
Mar–Apr 1956 2-Month	49.2°F (9.6°C)	50.0°F (10.0°C)	-0.8°F (-0.4°C)	50th Coolest	Coolest since: 1952	1960
	49.2°F (9.6°C)	50.0°F (10.0°C)	-0.8°F (-0.4°C)	79th Warmest	Warmest since: 1955	2012
	Ties: 1898, 2008
Feb–Apr 1956 3-Month	45.5°F (7.5°C)	44.9°F (7.2°C)	0.6°F (0.3°C)	71st Coolest	Coolest since: 1951	1899
	45.5°F (7.5°C)	44.9°F (7.2°C)	0.6°F (0.3°C)	58th Warmest	Warmest since: 1955	2012
	Ties: 1963, 2019
Jan–Apr 1956 4-Month	41.5°F (5.3°C)	41.5°F (5.3°C)	0.0°F (0.0°C)	63rd Coolest	Coolest since: 1951	1978
	41.5°F (5.3°C)	41.5°F (5.3°C)	0.0°F (0.0°C)	66th Warmest	Warmest since: 1955	2012
	Ties: 1943
Dec 1955–Apr 1956 5-Month	39.6°F (4.2°C)	40.1°F (4.5°C)	-0.5°F (-0.3°C)	44th Coolest	Coolest since: 1951	1978
	39.6°F (4.2°C)	40.1°F (4.5°C)	-0.5°F (-0.3°C)	84th Warmest	Warmest since: 1955	2012
	Ties: 1971, 2015
Nov 1955–Apr 1956 6-Month	40.0°F (4.4°C)	40.9°F (4.9°C)	-0.9°F (-0.5°C)	33rd Coolest	Coolest since: 1951	1912
	40.0°F (4.4°C)	40.9°F (4.9°C)	-0.9°F (-0.5°C)	95th Warmest	Warmest since: 1955	2012
	Ties: 1937, 1961
Oct 1955–Apr 1956 7-Month	42.5°F (5.8°C)	43.2°F (6.2°C)	-0.7°F (-0.4°C)	32nd Coolest	Coolest since: 1951	1899, 1978
	42.5°F (5.8°C)	43.2°F (6.2°C)	-0.7°F (-0.4°C)	96th Warmest	Warmest since: 1955	2012
	Ties: 1961, 2003
Sep 1955–Apr 1956 8-Month	46.2°F (7.9°C)	46.5°F (8.1°C)	-0.3°F (-0.2°C)	42nd Coolest	Coolest since: 1951	1918
	46.2°F (7.9°C)	46.5°F (8.1°C)	-0.3°F (-0.2°C)	86th Warmest	Warmest since: 1955	2017
	Ties: 1913, 1959, 2003
Aug 1955–Apr 1956 9-Month	49.7°F (9.8°C)	49.8°F (9.9°C)	-0.1°F (-0.1°C)	52nd Coolest	Coolest since: 1952	1918
	49.7°F (9.8°C)	49.8°F (9.9°C)	-0.1°F (-0.1°C)	76th Warmest	Warmest since: 1955	2017
	Ties: 1911, 1928, 1933, 1961, 2003, 2018
Jul 1955–Apr 1956 10-Month	52.8°F (11.6°C)	52.6°F (11.4°C)	0.2°F (0.2°C)	68th Coolest	Coolest since: 1952	1918
	52.8°F (11.6°C)	52.6°F (11.4°C)	0.2°F (0.2°C)	60th Warmest	Warmest since: 1955	2012
	Ties: 1910, 1933, 1983, 2003
Jun 1955–Apr 1956 11-Month	54.4°F (12.4°C)	54.5°F (12.5°C)	-0.1°F (-0.1°C)	54th Coolest	Coolest since: 1952	1918
	54.4°F (12.4°C)	54.5°F (12.5°C)	-0.1°F (-0.1°C)	74th Warmest	Warmest since: 1955	2012, 2017
	Ties: 1943, 1944
May 1955–Apr 1956 12-Month	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1952	1918
	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1955	2012, 2017
	Ties: 1897, 1900, 1985, 1990, 2009
Nov 1954–Apr 1956 18-Month	51.2°F (10.7°C)	50.5°F (10.3°C)	0.7°F (0.4°C)	88th Coolest	Coolest since: 1952	1905, 1979
	51.2°F (10.7°C)	50.5°F (10.3°C)	0.7°F (0.4°C)	39th Warmest	Warmest since: 1955	2017
	Ties: 1931, 2002
May 1954–Apr 1956 24-Month	56.3°F (13.5°C)	55.4°F (13.0°C)	0.9°F (0.5°C)	99th Coolest	Coolest since: 1953	1978
	56.3°F (13.5°C)	55.4°F (13.0°C)	0.9°F (0.5°C)	28th Warmest	Warmest since: 1955	2017
	Ties: 1934, 1943, 1988, 2001
May 1953–Apr 1956 36-Month	56.9°F (13.8°C)	55.4°F (13.0°C)	1.5°F (0.8°C)	114th Coolest	Coolest since: 1954	1979
	56.9°F (13.8°C)	55.4°F (13.0°C)	1.5°F (0.8°C)	12th Warmest	Warmest since: 1955	2018
	Ties: 2001, 2006
May 1952–Apr 1956 48-Month	56.8°F (13.8°C)	55.3°F (12.9°C)	1.5°F (0.9°C)	116th Coolest	Coolest since: 1955	1980
	56.8°F (13.8°C)	55.3°F (12.9°C)	1.5°F (0.9°C)	9th Warmest	Warmest since: 1935	2019
	Ties: 1957, 2007, 2022
May 1951–Apr 1956 60-Month	56.5°F (13.6°C)	55.3°F (12.9°C)	1.2°F (0.7°C)	108th Coolest	Coolest since: 1955	1980, 1981
	56.5°F (13.6°C)	55.3°F (12.9°C)	1.2°F (0.7°C)	16th Warmest	Warmest since: 1936	2020
	Ties: 1934, 1936, 2007

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings