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 7. East Southeast

Average Temperature Rankings, September 1947

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1947 1-Month	68.0°F (20.0°C)	67.4°F (19.7°C)	0.6°F (0.3°C)	71st Coolest	Coolest since: 1946	1918
	68.0°F (20.0°C)	67.4°F (19.7°C)	0.6°F (0.3°C)	58th Warmest	Warmest since: 1941	1925
	Ties: 1991
Aug–Sep 1947 2-Month	74.6°F (23.7°C)	70.8°F (21.6°C)	3.8°F (2.1°C)	126th Coolest	Coolest since: 1946	1967
Aug–Sep 1947 2-Month	74.6°F (23.7°C)	70.8°F (21.6°C)	3.8°F (2.1°C)	3rd Warmest	Warmest since: 1936	1936
Jul–Sep 1947 3-Month	73.9°F (23.3°C)	72.6°F (22.6°C)	1.3°F (0.7°C)	99th Coolest	Coolest since: 1946	1967
	73.9°F (23.3°C)	72.6°F (22.6°C)	1.3°F (0.7°C)	30th Warmest	Warmest since: 1941	1936
	Ties: 1919, 1939, 1953
Jun–Sep 1947 4-Month	73.0°F (22.8°C)	72.6°F (22.6°C)	0.4°F (0.2°C)	79th Coolest	Coolest since: 1946	1967
	73.0°F (22.8°C)	72.6°F (22.6°C)	0.4°F (0.2°C)	50th Warmest	Warmest since: 1944	1936
	Ties: 1899, 1908, 1926, 1999
May–Sep 1947 5-Month	70.5°F (21.4°C)	70.7°F (21.5°C)	-0.2°F (-0.1°C)	55th Coolest	Coolest since: 1946	1924
	70.5°F (21.4°C)	70.7°F (21.5°C)	-0.2°F (-0.1°C)	74th Warmest	Warmest since: 1944	1936
	Ties: 1948, 1960
Apr–Sep 1947 6-Month	67.5°F (19.7°C)	67.7°F (19.8°C)	-0.2°F (-0.1°C)	51st Coolest	Coolest since: 1946	1907
	67.5°F (19.7°C)	67.7°F (19.8°C)	-0.2°F (-0.1°C)	78th Warmest	Warmest since: 1944	2010
	Ties: 1937, 1956, 1969, 2013
Mar–Sep 1947 7-Month	62.8°F (17.1°C)	64.0°F (17.8°C)	-1.2°F (-0.7°C)	18th Coolest	Coolest since: 1928	1924
	62.8°F (17.1°C)	64.0°F (17.8°C)	-1.2°F (-0.7°C)	111th Warmest	Warmest since: 1946	2012
	Ties: 1909, 1923, 1992
Feb–Sep 1947 8-Month	58.0°F (14.4°C)	59.9°F (15.5°C)	-1.9°F (-1.1°C)	12th Coolest	Coolest since: 1924	1904, 1924
	58.0°F (14.4°C)	59.9°F (15.5°C)	-1.9°F (-1.1°C)	117th Warmest	Warmest since: 1946	2012
	Ties: 1902
Jan–Sep 1947 9-Month	55.3°F (12.9°C)	56.4°F (13.6°C)	-1.1°F (-0.7°C)	28th Coolest	Coolest since: 1940	1979
	55.3°F (12.9°C)	56.4°F (13.6°C)	-1.1°F (-0.7°C)	101st Warmest	Warmest since: 1946	2012
	Ties: 1994
Dec 1946–Sep 1947 10-Month	53.4°F (11.9°C)	53.8°F (12.1°C)	-0.4°F (-0.2°C)	41st Coolest	Coolest since: 1945	1904
	53.4°F (11.9°C)	53.8°F (12.1°C)	-0.4°F (-0.2°C)	87th Warmest	Warmest since: 1946	2012
	Ties: 1897, 1923, 1965, 1977
Nov 1946–Sep 1947 11-Month	52.7°F (11.5°C)	52.8°F (11.6°C)	-0.1°F (-0.1°C)	51st Coolest	Coolest since: 1945	1904
	52.7°F (11.5°C)	52.8°F (11.6°C)	-0.1°F (-0.1°C)	77th Warmest	Warmest since: 1946	2012
	Ties: 1901, 1950, 1965, 1980, 2008
Oct 1946–Sep 1947 12-Month	53.2°F (11.8°C)	53.0°F (11.7°C)	0.2°F (0.1°C)	59th Coolest	Coolest since: 1945	1904
	53.2°F (11.8°C)	53.0°F (11.7°C)	0.2°F (0.1°C)	69th Warmest	Warmest since: 1946	2012
	Ties: 1903, 1908, 1950, 2013
Apr 1946–Sep 1947 18-Month	57.7°F (14.3°C)	57.9°F (14.4°C)	-0.2°F (-0.1°C)	44th Coolest	Coolest since: 1946	1918
	57.7°F (14.3°C)	57.9°F (14.4°C)	-0.2°F (-0.1°C)	84th Warmest	Warmest since: 1945	2012
	Ties: 1903, 1906, 1960, 2009
Oct 1945–Sep 1947 24-Month	53.3°F (11.8°C)	53.1°F (11.7°C)	0.2°F (0.1°C)	74th Coolest	Coolest since: 1946	1979
	53.3°F (11.8°C)	53.1°F (11.7°C)	0.2°F (0.1°C)	53rd Warmest	Warmest since: 1944	2017
	Ties: 1938, 1948
Oct 1944–Sep 1947 36-Month	53.1°F (11.7°C)	53.1°F (11.7°C)	0.0°F (0.0°C)	59th Coolest	Coolest since: 1930	1979
	53.1°F (11.7°C)	53.1°F (11.7°C)	0.0°F (0.0°C)	67th Warmest	Warmest since: 1946	2018
	Ties: 1916, 1966, 2016
Oct 1943–Sep 1947 48-Month	53.2°F (11.8°C)	53.0°F (11.7°C)	0.2°F (0.1°C)	58th Coolest	Coolest since: 1946	1980
	53.2°F (11.8°C)	53.0°F (11.7°C)	0.2°F (0.1°C)	67th Warmest	Warmest since: 1946	2019
	Ties: 1940, 1946, 1953, 1958
Oct 1942–Sep 1947 60-Month	53.2°F (11.8°C)	53.0°F (11.7°C)	0.2°F (0.1°C)	58th Coolest	Coolest since: 1940	1982
	53.2°F (11.8°C)	53.0°F (11.7°C)	0.2°F (0.1°C)	66th Warmest	Warmest since: 1946	2020
	Ties: 1940, 1948, 1959, 1975, 1998

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings