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 3. West

Average Temperature Rankings, April 1959

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
April 1959 1-Month	51.2°F (10.7°C)	51.3°F (10.7°C)	-0.1°F (0.0°C)	55th Coolest	Coolest since: 1956	2018
April 1959 1-Month	51.2°F (10.7°C)	51.3°F (10.7°C)	-0.1°F (0.0°C)	74th Warmest	Warmest since: 1958	2010
Mar–Apr 1959 2-Month	45.2°F (7.3°C)	45.2°F (7.3°C)	0.0°F (0.0°C)	65th Coolest	Coolest since: 1958	1960
	45.2°F (7.3°C)	45.2°F (7.3°C)	0.0°F (0.0°C)	64th Warmest	Warmest since: 1955	2012
	Ties: 1966
Feb–Apr 1959 3-Month	39.2°F (4.0°C)	39.5°F (4.2°C)	-0.3°F (-0.2°C)	59th Coolest	Coolest since: 1958	1899
	39.2°F (4.0°C)	39.5°F (4.2°C)	-0.3°F (-0.2°C)	70th Warmest	Warmest since: 1957	2012
	Ties: 2007
Jan–Apr 1959 4-Month	34.0°F (1.1°C)	35.6°F (2.0°C)	-1.6°F (-0.9°C)	35th Coolest	Coolest since: 1958	1912
	34.0°F (1.1°C)	35.6°F (2.0°C)	-1.6°F (-0.9°C)	94th Warmest	Warmest since: 1957	2012
	Ties: 1972, 2015
Dec 1958–Apr 1959 5-Month	32.0°F (0.0°C)	34.2°F (1.2°C)	-2.2°F (-1.2°C)	20th Coolest	Coolest since: 1951	1978
	32.0°F (0.0°C)	34.2°F (1.2°C)	-2.2°F (-1.2°C)	108th Warmest	Warmest since: 1958	2012
	Ties: 1963
Nov 1958–Apr 1959 6-Month	34.0°F (1.1°C)	35.2°F (1.8°C)	-1.2°F (-0.7°C)	32nd Coolest	Coolest since: 1956	1904, 1912, 1978
	34.0°F (1.1°C)	35.2°F (1.8°C)	-1.2°F (-0.7°C)	96th Warmest	Warmest since: 1958	2012
	Ties: 1937, 2018
Oct 1958–Apr 1959 7-Month	37.1°F (2.8°C)	37.9°F (3.3°C)	-0.8°F (-0.5°C)	36th Coolest	Coolest since: 1958	1912
	37.1°F (2.8°C)	37.9°F (3.3°C)	-0.8°F (-0.5°C)	92nd Warmest	Warmest since: 1957	2012
	Ties: 1980
Sep 1958–Apr 1959 8-Month	40.6°F (4.8°C)	41.5°F (5.3°C)	-0.9°F (-0.5°C)	34th Coolest	Coolest since: 1958	1904, 1978
	40.6°F (4.8°C)	41.5°F (5.3°C)	-0.9°F (-0.5°C)	94th Warmest	Warmest since: 1957	2017
	Ties: 1940, 1956
Aug 1958–Apr 1959 9-Month	44.3°F (6.8°C)	45.0°F (7.2°C)	-0.7°F (-0.4°C)	35th Coolest	Coolest since: 1958	1978
	44.3°F (6.8°C)	45.0°F (7.2°C)	-0.7°F (-0.4°C)	93rd Warmest	Warmest since: 1957	2017
	Ties: 1916, 1943, 1980
Jul 1958–Apr 1959 10-Month	47.1°F (8.4°C)	48.1°F (8.9°C)	-1.0°F (-0.5°C)	28th Coolest	Coolest since: 1951	1904
	47.1°F (8.4°C)	48.1°F (8.9°C)	-1.0°F (-0.5°C)	100th Warmest	Warmest since: 1958	2012
	Ties: 1916, 2001
Jun 1958–Apr 1959 11-Month	49.0°F (9.4°C)	50.3°F (10.2°C)	-1.3°F (-0.8°C)	22nd Coolest	Coolest since: 1951	1904
	49.0°F (9.4°C)	50.3°F (10.2°C)	-1.3°F (-0.8°C)	106th Warmest	Warmest since: 1958	2017
	Ties: 1916, 1996
May 1958–Apr 1959 12-Month	50.2°F (10.1°C)	51.3°F (10.7°C)	-1.1°F (-0.6°C)	26th Coolest	Coolest since: 1951	1918
May 1958–Apr 1959 12-Month	50.2°F (10.1°C)	51.3°F (10.7°C)	-1.1°F (-0.6°C)	102nd Warmest	Warmest since: 1958	2017
Nov 1957–Apr 1959 18-Month	44.8°F (7.1°C)	45.9°F (7.7°C)	-1.1°F (-0.6°C)	20th Coolest	Coolest since: 1952	1979
	44.8°F (7.1°C)	45.9°F (7.7°C)	-1.1°F (-0.6°C)	107th Warmest	Warmest since: 1958	2017
	Ties: 1903, 1906, 1963
May 1957–Apr 1959 24-Month	50.3°F (10.2°C)	51.2°F (10.7°C)	-0.9°F (-0.5°C)	20th Coolest	Coolest since: 1952	1905
	50.3°F (10.2°C)	51.2°F (10.7°C)	-0.9°F (-0.5°C)	107th Warmest	Warmest since: 1958	2017
	Ties: 1899, 1919, 1968, 1971, 2014
May 1956–Apr 1959 36-Month	51.1°F (10.6°C)	51.2°F (10.7°C)	-0.1°F (-0.1°C)	50th Coolest	Coolest since: 1953	1979
	51.1°F (10.6°C)	51.2°F (10.7°C)	-0.1°F (-0.1°C)	76th Warmest	Warmest since: 1958	2018
	Ties: 1903, 1910, 1911, 2010
May 1955–Apr 1959 48-Month	51.1°F (10.6°C)	51.2°F (10.7°C)	-0.1°F (-0.1°C)	45th Coolest	Coolest since: 1953	1980
	51.1°F (10.6°C)	51.2°F (10.7°C)	-0.1°F (-0.1°C)	80th Warmest	Warmest since: 1958	1935
	Ties: 1909, 1914, 1921, 1951, 1975, 1983, 1995
May 1954–Apr 1959 60-Month	51.5°F (10.8°C)	51.2°F (10.7°C)	0.3°F (0.1°C)	72nd Coolest	Coolest since: 1954	1906, 1979
	51.5°F (10.8°C)	51.2°F (10.7°C)	0.3°F (0.1°C)	52nd Warmest	Warmest since: 1958	1935
	Ties: 1922, 1940, 1954, 1999, 2015

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings