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 1964

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Warmest/Coolest Since	Record
April 1964 1-Month	58.9°F (14.9°C)	55.3°F (12.9°C)	3.6°F (2.0°C)	108th Coolest	Coolest since: 1963	1907
	58.9°F (14.9°C)	55.3°F (12.9°C)	3.6°F (2.0°C)	22nd Warmest	Warmest since: 1955	1896
	Ties: 1965
Mar–Apr 1964 2-Month	51.4°F (10.8°C)	50.0°F (10.0°C)	1.4°F (0.8°C)	87th Coolest	Coolest since: 1962	1960
	51.4°F (10.8°C)	50.0°F (10.0°C)	1.4°F (0.8°C)	43rd Warmest	Warmest since: 1963	2012
	Ties: 1922, 2001
Feb–Apr 1964 3-Month	45.6°F (7.6°C)	44.9°F (7.2°C)	0.7°F (0.4°C)	73rd Coolest	Coolest since: 1963	1899
	45.6°F (7.6°C)	44.9°F (7.2°C)	0.7°F (0.4°C)	57th Warmest	Warmest since: 1959	2012
	Ties: 1915
Jan–Apr 1964 4-Month	42.8°F (6.0°C)	41.5°F (5.3°C)	1.3°F (0.7°C)	88th Coolest	Coolest since: 1963	1978
Jan–Apr 1964 4-Month	42.8°F (6.0°C)	41.5°F (5.3°C)	1.3°F (0.7°C)	42nd Warmest	Warmest since: 1955	2012
Dec 1963–Apr 1964 5-Month	39.0°F (3.9°C)	40.1°F (4.5°C)	-1.1°F (-0.6°C)	32nd Coolest	Coolest since: 1963	1978
	39.0°F (3.9°C)	40.1°F (4.5°C)	-1.1°F (-0.6°C)	97th Warmest	Warmest since: 1961	2012
	Ties: 1961
Nov 1963–Apr 1964 6-Month	40.4°F (4.7°C)	40.9°F (4.9°C)	-0.5°F (-0.2°C)	40th Coolest	Coolest since: 1963	1912
	40.4°F (4.7°C)	40.9°F (4.9°C)	-0.5°F (-0.2°C)	89th Warmest	Warmest since: 1959	2012
	Ties: 1944, 1997, 2003, 2018
Oct 1963–Apr 1964 7-Month	44.0°F (6.7°C)	43.2°F (6.2°C)	0.8°F (0.5°C)	84th Coolest	Coolest since: 1963	1899, 1978
	44.0°F (6.7°C)	43.2°F (6.2°C)	0.8°F (0.5°C)	45th Warmest	Warmest since: 1957	2012
	Ties: 1981, 1987, 2008
Sep 1963–Apr 1964 8-Month	47.1°F (8.4°C)	46.5°F (8.1°C)	0.6°F (0.3°C)	81st Coolest	Coolest since: 1963	1918
	47.1°F (8.4°C)	46.5°F (8.1°C)	0.6°F (0.3°C)	48th Warmest	Warmest since: 1957	2017
	Ties: 1907, 1927, 1928
Aug 1963–Apr 1964 9-Month	50.1°F (10.1°C)	49.8°F (9.9°C)	0.3°F (0.2°C)	71st Coolest	Coolest since: 1963	1918
	50.1°F (10.1°C)	49.8°F (9.9°C)	0.3°F (0.2°C)	58th Warmest	Warmest since: 1957	2017
	Ties: 1945, 1967
Jul 1963–Apr 1964 10-Month	52.7°F (11.5°C)	52.6°F (11.4°C)	0.1°F (0.1°C)	59th Coolest	Coolest since: 1963	1918
	52.7°F (11.5°C)	52.6°F (11.4°C)	0.1°F (0.1°C)	70th Warmest	Warmest since: 1957	2012
	Ties: 1908, 1915, 1917, 2018
Jun 1963–Apr 1964 11-Month	54.8°F (12.7°C)	54.5°F (12.5°C)	0.3°F (0.2°C)	69th Coolest	Coolest since: 1963	1918
	54.8°F (12.7°C)	54.5°F (12.5°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 1957	2012, 2017
	Ties: 1910, 1949, 1985, 1986, 1988, 1990
May 1963–Apr 1964 12-Month	55.5°F (13.1°C)	55.4°F (13.0°C)	0.1°F (0.1°C)	60th Coolest	Coolest since: 1963	1918
	55.5°F (13.1°C)	55.4°F (13.0°C)	0.1°F (0.1°C)	69th Warmest	Warmest since: 1957	2012, 2017
	Ties: 1910, 1925, 1949
Nov 1962–Apr 1964 18-Month	50.0°F (10.0°C)	50.5°F (10.3°C)	-0.5°F (-0.3°C)	36th Coolest	Coolest since: 1963	1905, 1979
	50.0°F (10.0°C)	50.5°F (10.3°C)	-0.5°F (-0.3°C)	92nd Warmest	Warmest since: 1960	2017
	Ties: 1960, 1983
May 1962–Apr 1964 24-Month	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	46th Coolest	Coolest since: 1963	1978
	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	82nd Warmest	Warmest since: 1958	2017
	Ties: 1928, 1944, 1948, 1958, 1998, 2010, 2014
May 1961–Apr 1964 36-Month	54.8°F (12.7°C)	55.4°F (13.0°C)	-0.6°F (-0.3°C)	23rd Coolest	Coolest since: 1963	1979
	54.8°F (12.7°C)	55.4°F (13.0°C)	-0.6°F (-0.3°C)	104th Warmest	Warmest since: 1961	2018
	Ties: 1899, 1900, 1901, 1952, 1961, 1982
May 1960–Apr 1964 48-Month	54.8°F (12.7°C)	55.3°F (12.9°C)	-0.5°F (-0.2°C)	22nd Coolest	Coolest since: 1963	1980
	54.8°F (12.7°C)	55.3°F (12.9°C)	-0.5°F (-0.2°C)	104th Warmest	Warmest since: 1960	2019
	Ties: 1985, 1996
May 1959–Apr 1964 60-Month	54.8°F (12.7°C)	55.3°F (12.9°C)	-0.5°F (-0.2°C)	17th Coolest	Coolest since: 1963	1980, 1981
	54.8°F (12.7°C)	55.3°F (12.9°C)	-0.5°F (-0.2°C)	108th Warmest	Warmest since: 1961	2020
	Ties: 1904, 1918, 1969, 1997

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings