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 1948

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
April 1948 1-Month	59.3°F (15.2°C)	55.3°F (12.9°C)	4.0°F (2.3°C)	117th Coolest	Coolest since: 1947	1907
April 1948 1-Month	59.3°F (15.2°C)	55.3°F (12.9°C)	4.0°F (2.3°C)	12th Warmest	Warmest since: 1925	1896
Mar–Apr 1948 2-Month	52.0°F (11.1°C)	50.0°F (10.0°C)	2.0°F (1.1°C)	96th Coolest	Coolest since: 1947	1960
	52.0°F (11.1°C)	50.0°F (10.0°C)	2.0°F (1.1°C)	33rd Warmest	Warmest since: 1946	2012
	Ties: 1987
Feb–Apr 1948 3-Month	46.0°F (7.8°C)	44.9°F (7.2°C)	1.1°F (0.6°C)	84th Coolest	Coolest since: 1947	1899
	46.0°F (7.8°C)	44.9°F (7.2°C)	1.1°F (0.6°C)	45th Warmest	Warmest since: 1946	2012
	Ties: 1911, 1919, 1942
Jan–Apr 1948 4-Month	40.8°F (4.9°C)	41.5°F (5.3°C)	-0.7°F (-0.4°C)	46th Coolest	Coolest since: 1947	1978
	40.8°F (4.9°C)	41.5°F (5.3°C)	-0.7°F (-0.4°C)	83rd Warmest	Warmest since: 1946	2012
	Ties: 2003
Dec 1947–Apr 1948 5-Month	40.0°F (4.4°C)	40.1°F (4.5°C)	-0.1°F (-0.1°C)	56th Coolest	Coolest since: 1947	1978
	40.0°F (4.4°C)	40.1°F (4.5°C)	-0.1°F (-0.1°C)	72nd Warmest	Warmest since: 1946	2012
	Ties: 1914, 2010
Nov 1947–Apr 1948 6-Month	40.1°F (4.5°C)	40.9°F (4.9°C)	-0.8°F (-0.4°C)	36th Coolest	Coolest since: 1940	1912
	40.1°F (4.5°C)	40.9°F (4.9°C)	-0.8°F (-0.4°C)	92nd Warmest	Warmest since: 1947	2012
	Ties: 1915
Oct 1947–Apr 1948 7-Month	43.6°F (6.4°C)	43.2°F (6.2°C)	0.4°F (0.2°C)	72nd Coolest	Coolest since: 1947	1899, 1978
	43.6°F (6.4°C)	43.2°F (6.2°C)	0.4°F (0.2°C)	56th Warmest	Warmest since: 1946	2012
	Ties: 1907, 1908, 1910, 1914, 1927, 1931, 1952
Sep 1947–Apr 1948 8-Month	46.9°F (8.3°C)	46.5°F (8.1°C)	0.4°F (0.2°C)	74th Coolest	Coolest since: 1947	1918
	46.9°F (8.3°C)	46.5°F (8.1°C)	0.4°F (0.2°C)	54th Warmest	Warmest since: 1946	2017
	Ties: 1916, 1945, 1950, 2011
Aug 1947–Apr 1948 9-Month	50.9°F (10.5°C)	49.8°F (9.9°C)	1.1°F (0.6°C)	97th Coolest	Coolest since: 1947	1918
	50.9°F (10.5°C)	49.8°F (9.9°C)	1.1°F (0.6°C)	31st Warmest	Warmest since: 1946	2017
	Ties: 1995, 1998
Jul 1947–Apr 1948 10-Month	53.2°F (11.8°C)	52.6°F (11.4°C)	0.6°F (0.4°C)	79th Coolest	Coolest since: 1947	1918
	53.2°F (11.8°C)	52.6°F (11.4°C)	0.6°F (0.4°C)	49th Warmest	Warmest since: 1946	2012
	Ties: 1901, 1967, 1986
Jun 1947–Apr 1948 11-Month	55.0°F (12.8°C)	54.5°F (12.5°C)	0.5°F (0.3°C)	77th Coolest	Coolest since: 1947	1918
	55.0°F (12.8°C)	54.5°F (12.5°C)	0.5°F (0.3°C)	51st Warmest	Warmest since: 1946	2012, 2017
	Ties: 1927, 1941, 1967, 2003
May 1947–Apr 1948 12-Month	55.6°F (13.1°C)	55.4°F (13.0°C)	0.2°F (0.1°C)	70th Coolest	Coolest since: 1947	1918
	55.6°F (13.1°C)	55.4°F (13.0°C)	0.2°F (0.1°C)	58th Warmest	Warmest since: 1946	2012, 2017
	Ties: 1907, 1941, 1967, 1983, 2003, 2018
Nov 1946–Apr 1948 18-Month	50.6°F (10.3°C)	50.5°F (10.3°C)	0.1°F (0.0°C)	58th Coolest	Coolest since: 1944	1905, 1979
	50.6°F (10.3°C)	50.5°F (10.3°C)	0.1°F (0.0°C)	69th Warmest	Warmest since: 1947	2017
	Ties: 1925, 1926, 1998, 2009
May 1946–Apr 1948 24-Month	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	46th Coolest	Coolest since: 1944	1978
	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	81st Warmest	Warmest since: 1947	2017
	Ties: 1928, 1944, 1958, 1964, 1998, 2010, 2014
May 1945–Apr 1948 36-Month	55.5°F (13.1°C)	55.4°F (13.0°C)	0.1°F (0.1°C)	65th Coolest	Coolest since: 1938	1979
	55.5°F (13.1°C)	55.4°F (13.0°C)	0.1°F (0.1°C)	61st Warmest	Warmest since: 1947	2018
	Ties: 1898, 1909, 1938, 1966, 1967, 1994
May 1944–Apr 1948 48-Month	55.7°F (13.2°C)	55.3°F (12.9°C)	0.4°F (0.3°C)	72nd Coolest	Coolest since: 1947	1980
	55.7°F (13.2°C)	55.3°F (12.9°C)	0.4°F (0.3°C)	53rd Warmest	Warmest since: 1946	2019
	Ties: 1943, 1946, 1976, 1994, 1999
May 1943–Apr 1948 60-Month	55.6°F (13.1°C)	55.3°F (12.9°C)	0.3°F (0.2°C)	70th Coolest	Coolest since: 1947	1980, 1981
	55.6°F (13.1°C)	55.3°F (12.9°C)	0.3°F (0.2°C)	54th Warmest	Warmest since: 1946	2020
	Ties: 1926, 1940, 1944, 1949, 1950, 1959, 1994

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