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 1965

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Warmest/Coolest Since	Record
April 1965 1-Month	58.9°F (14.9°C)	55.3°F (12.9°C)	3.6°F (2.0°C)	108th Coolest	Coolest since: 1964	1907
	58.9°F (14.9°C)	55.3°F (12.9°C)	3.6°F (2.0°C)	22nd Warmest	Warmest since: 1964	1896
	Ties: 1964
Mar–Apr 1965 2-Month	47.5°F (8.6°C)	50.0°F (10.0°C)	-2.5°F (-1.4°C)	22nd Coolest	Coolest since: 1962	1960
	47.5°F (8.6°C)	50.0°F (10.0°C)	-2.5°F (-1.4°C)	108th Warmest	Warmest since: 1964	2012
	Ties: 1901, 1931
Feb–Apr 1965 3-Month	43.1°F (6.2°C)	44.9°F (7.2°C)	-1.8°F (-1.0°C)	32nd Coolest	Coolest since: 1960	1899
	43.1°F (6.2°C)	44.9°F (7.2°C)	-1.8°F (-1.0°C)	98th Warmest	Warmest since: 1964	2012
	Ties: 1950, 1969
Jan–Apr 1965 4-Month	40.7°F (4.8°C)	41.5°F (5.3°C)	-0.8°F (-0.5°C)	45th Coolest	Coolest since: 1963	1978
Jan–Apr 1965 4-Month	40.7°F (4.8°C)	41.5°F (5.3°C)	-0.8°F (-0.5°C)	85th Warmest	Warmest since: 1964	2012
Dec 1964–Apr 1965 5-Month	39.3°F (4.1°C)	40.1°F (4.5°C)	-0.8°F (-0.4°C)	40th Coolest	Coolest since: 1964	1978
	39.3°F (4.1°C)	40.1°F (4.5°C)	-0.8°F (-0.4°C)	89th Warmest	Warmest since: 1957	2012
	Ties: 1947
Nov 1964–Apr 1965 6-Month	40.7°F (4.8°C)	40.9°F (4.9°C)	-0.2°F (-0.1°C)	50th Coolest	Coolest since: 1964	1912
	40.7°F (4.8°C)	40.9°F (4.9°C)	-0.2°F (-0.1°C)	79th Warmest	Warmest since: 1957	2012
	Ties: 1947
Oct 1964–Apr 1965 7-Month	42.6°F (5.9°C)	43.2°F (6.2°C)	-0.6°F (-0.3°C)	35th Coolest	Coolest since: 1963	1899, 1978
	42.6°F (5.9°C)	43.2°F (6.2°C)	-0.6°F (-0.3°C)	94th Warmest	Warmest since: 1964	2012
	Ties: 1944, 1971, 1994
Sep 1964–Apr 1965 8-Month	45.9°F (7.7°C)	46.5°F (8.1°C)	-0.6°F (-0.4°C)	35th Coolest	Coolest since: 1963	1918
	45.9°F (7.7°C)	46.5°F (8.1°C)	-0.6°F (-0.4°C)	94th Warmest	Warmest since: 1964	2017
	Ties: 1915, 1924
Aug 1964–Apr 1965 9-Month	49.2°F (9.6°C)	49.8°F (9.9°C)	-0.6°F (-0.3°C)	33rd Coolest	Coolest since: 1963	1918
	49.2°F (9.6°C)	49.8°F (9.9°C)	-0.6°F (-0.3°C)	96th Warmest	Warmest since: 1964	2017
	Ties: 1944, 2001
Jul 1964–Apr 1965 10-Month	52.1°F (11.2°C)	52.6°F (11.4°C)	-0.5°F (-0.2°C)	35th Coolest	Coolest since: 1963	1918
Jul 1964–Apr 1965 10-Month	52.1°F (11.2°C)	52.6°F (11.4°C)	-0.5°F (-0.2°C)	94th Warmest	Warmest since: 1964	2012
Jun 1964–Apr 1965 11-Month	54.2°F (12.3°C)	54.5°F (12.5°C)	-0.3°F (-0.2°C)	46th Coolest	Coolest since: 1963	1918
	54.2°F (12.3°C)	54.5°F (12.5°C)	-0.3°F (-0.2°C)	83rd Warmest	Warmest since: 1964	2012, 2017
	Ties: 1917, 1961, 2010
May 1964–Apr 1965 12-Month	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	49th Coolest	Coolest since: 1963	1918
	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	80th Warmest	Warmest since: 1964	2012, 2017
	Ties: 1896, 1917, 1943, 1944
Nov 1963–Apr 1965 18-Month	50.3°F (10.2°C)	50.5°F (10.3°C)	-0.2°F (-0.1°C)	41st Coolest	Coolest since: 1964	1905, 1979
	50.3°F (10.2°C)	50.5°F (10.3°C)	-0.2°F (-0.1°C)	87th Warmest	Warmest since: 1957	2017
	Ties: 1908, 1911, 1924, 1928, 1937
May 1963–Apr 1965 24-Month	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1964	1978
	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1957	2017
	Ties: 1897, 1909, 1916, 1947, 1981
May 1962–Apr 1965 36-Month	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	49th Coolest	Coolest since: 1964	1979
	55.3°F (12.9°C)	55.4°F (13.0°C)	-0.1°F (-0.1°C)	78th Warmest	Warmest since: 1958	2018
	Ties: 1903, 1917, 1927, 1975, 1983
May 1961–Apr 1965 48-Month	54.9°F (12.7°C)	55.3°F (12.9°C)	-0.4°F (-0.2°C)	25th Coolest	Coolest since: 1964	1980
	54.9°F (12.7°C)	55.3°F (12.9°C)	-0.4°F (-0.2°C)	101st Warmest	Warmest since: 1960	2019
	Ties: 1899, 1914, 1929, 1972
May 1960–Apr 1965 60-Month	54.9°F (12.7°C)	55.3°F (12.9°C)	-0.4°F (-0.2°C)	22nd Coolest	Coolest since: 1964	1980, 1981
	54.9°F (12.7°C)	55.3°F (12.9°C)	-0.4°F (-0.2°C)	103rd Warmest	Warmest since: 1961	2020
	Ties: 1902, 1903, 1909, 1912, 1919, 1930, 1973, 1984

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published May 2023, retrieved on June 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings