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 1948

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1948 1-Month	68.4°F (20.2°C)	67.4°F (19.7°C)	1.0°F (0.5°C)	76th Coolest	Coolest since: 1947	1918
	68.4°F (20.2°C)	67.4°F (19.7°C)	1.0°F (0.5°C)	53rd Warmest	Warmest since: 1941	1925
	Ties: 1983
Aug–Sep 1948 2-Month	71.3°F (21.8°C)	70.8°F (21.6°C)	0.5°F (0.2°C)	79th Coolest	Coolest since: 1946	1967
	71.3°F (21.8°C)	70.8°F (21.6°C)	0.5°F (0.2°C)	50th Warmest	Warmest since: 1947	1936
	Ties: 1916, 1944, 1972, 2013
Jul–Sep 1948 3-Month	72.8°F (22.7°C)	72.7°F (22.6°C)	0.1°F (0.1°C)	70th Coolest	Coolest since: 1946	1967
	72.8°F (22.7°C)	72.7°F (22.6°C)	0.1°F (0.1°C)	59th Warmest	Warmest since: 1947	1936
	Ties: 1952
Jun–Sep 1948 4-Month	72.8°F (22.7°C)	72.6°F (22.6°C)	0.2°F (0.1°C)	73rd Coolest	Coolest since: 1946	1967
	72.8°F (22.7°C)	72.6°F (22.6°C)	0.2°F (0.1°C)	56th Warmest	Warmest since: 1947	1936
	Ties: 1906, 1940, 1964, 1970, 1971, 2017
May–Sep 1948 5-Month	70.5°F (21.4°C)	70.7°F (21.5°C)	-0.2°F (-0.1°C)	55th Coolest	Coolest since: 1947	1924
	70.5°F (21.4°C)	70.7°F (21.5°C)	-0.2°F (-0.1°C)	74th Warmest	Warmest since: 1947	1936
	Ties: 1947, 1960
Apr–Sep 1948 6-Month	68.3°F (20.2°C)	67.8°F (19.9°C)	0.5°F (0.3°C)	77th Coolest	Coolest since: 1947	1907
	68.3°F (20.2°C)	67.8°F (19.9°C)	0.5°F (0.3°C)	52nd Warmest	Warmest since: 1944	2010
	Ties: 1899, 1939
Mar–Sep 1948 7-Month	64.5°F (18.1°C)	64.0°F (17.8°C)	0.5°F (0.3°C)	80th Coolest	Coolest since: 1947	1924
	64.5°F (18.1°C)	64.0°F (17.8°C)	0.5°F (0.3°C)	49th Warmest	Warmest since: 1946	2012
	Ties: 1931, 1999, 2001, 2015
Feb–Sep 1948 8-Month	60.3°F (15.7°C)	59.9°F (15.5°C)	0.4°F (0.2°C)	72nd Coolest	Coolest since: 1947	1904, 1924
	60.3°F (15.7°C)	59.9°F (15.5°C)	0.4°F (0.2°C)	57th Warmest	Warmest since: 1946	2012
	Ties: 1898, 1942, 2021
Jan–Sep 1948 9-Month	56.2°F (13.4°C)	56.4°F (13.6°C)	-0.2°F (-0.2°C)	59th Coolest	Coolest since: 1947	1979
	56.2°F (13.4°C)	56.4°F (13.6°C)	-0.2°F (-0.2°C)	70th Warmest	Warmest since: 1946	2012
	Ties: 1945
Dec 1947–Sep 1948 10-Month	53.9°F (12.2°C)	53.8°F (12.1°C)	0.1°F (0.1°C)	68th Coolest	Coolest since: 1947	1904
	53.9°F (12.2°C)	53.8°F (12.1°C)	0.1°F (0.1°C)	60th Warmest	Warmest since: 1946	2012
	Ties: 1909, 1936, 1943, 1981, 1985
Nov 1947–Sep 1948 11-Month	52.5°F (11.4°C)	52.9°F (11.6°C)	-0.4°F (-0.2°C)	45th Coolest	Coolest since: 1945	1904
	52.5°F (11.4°C)	52.9°F (11.6°C)	-0.4°F (-0.2°C)	83rd Warmest	Warmest since: 1947	2012
	Ties: 1923, 1993
Oct 1947–Sep 1948 12-Month	53.3°F (11.8°C)	53.1°F (11.7°C)	0.2°F (0.1°C)	66th Coolest	Coolest since: 1947	1904
	53.3°F (11.8°C)	53.1°F (11.7°C)	0.2°F (0.1°C)	62nd Warmest	Warmest since: 1946	2012
	Ties: 1943, 1973
Apr 1947–Sep 1948 18-Month	58.0°F (14.4°C)	57.9°F (14.4°C)	0.1°F (0.0°C)	57th Coolest	Coolest since: 1947	1918
	58.0°F (14.4°C)	57.9°F (14.4°C)	0.1°F (0.0°C)	71st Warmest	Warmest since: 1945	2012
	Ties: 1896, 1950, 1966, 1973, 1990, 2003
Oct 1946–Sep 1948 24-Month	53.3°F (11.8°C)	53.1°F (11.7°C)	0.2°F (0.1°C)	74th Coolest	Coolest since: 1947	1979
	53.3°F (11.8°C)	53.1°F (11.7°C)	0.2°F (0.1°C)	53rd Warmest	Warmest since: 1947	2017
	Ties: 1938, 1947
Oct 1945–Sep 1948 36-Month	53.3°F (11.8°C)	53.0°F (11.7°C)	0.3°F (0.1°C)	72nd Coolest	Coolest since: 1947	1979
	53.3°F (11.8°C)	53.0°F (11.7°C)	0.3°F (0.1°C)	54th Warmest	Warmest since: 1944	2018
	Ties: 1973
Oct 1944–Sep 1948 48-Month	53.1°F (11.7°C)	53.0°F (11.7°C)	0.1°F (0.0°C)	53rd Coolest	Coolest since: 1931	1980
	53.1°F (11.7°C)	53.0°F (11.7°C)	0.1°F (0.0°C)	72nd Warmest	Warmest since: 1947	2019
	Ties: 1914, 1931, 1952, 2016
Oct 1943–Sep 1948 60-Month	53.2°F (11.8°C)	53.0°F (11.7°C)	0.2°F (0.1°C)	58th Coolest	Coolest since: 1947	1982
	53.2°F (11.8°C)	53.0°F (11.7°C)	0.2°F (0.1°C)	66th Warmest	Warmest since: 1947	2020
	Ties: 1940, 1947, 1959, 1975, 1998

Citing This Page

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