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 1959

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1959 1-Month	69.0°F (20.6°C)	67.4°F (19.7°C)	1.6°F (0.9°C)	84th Coolest	Coolest since: 1958	1918
	69.0°F (20.6°C)	67.4°F (19.7°C)	1.6°F (0.9°C)	45th Warmest	Warmest since: 1955	1925
	Ties: 1953
Aug–Sep 1959 2-Month	73.2°F (22.9°C)	70.8°F (21.6°C)	2.4°F (1.3°C)	109th Coolest	Coolest since: 1958	1967
	73.2°F (22.9°C)	70.8°F (21.6°C)	2.4°F (1.3°C)	20th Warmest	Warmest since: 1955	1936
	Ties: 2010, 2019
Jul–Sep 1959 3-Month	74.0°F (23.3°C)	72.6°F (22.6°C)	1.4°F (0.7°C)	100th Coolest	Coolest since: 1958	1967
Jul–Sep 1959 3-Month	74.0°F (23.3°C)	72.6°F (22.6°C)	1.4°F (0.7°C)	29th Warmest	Warmest since: 1955	1936
Jun–Sep 1959 4-Month	73.9°F (23.3°C)	72.6°F (22.6°C)	1.3°F (0.7°C)	99th Coolest	Coolest since: 1958	1967
	73.9°F (23.3°C)	72.6°F (22.6°C)	1.3°F (0.7°C)	30th Warmest	Warmest since: 1954	1936
	Ties: 1900, 1987, 2019, 2021
May–Sep 1959 5-Month	72.6°F (22.6°C)	70.7°F (21.5°C)	1.9°F (1.1°C)	109th Coolest	Coolest since: 1958	1924
May–Sep 1959 5-Month	72.6°F (22.6°C)	70.7°F (21.5°C)	1.9°F (1.1°C)	20th Warmest	Warmest since: 1954	1936
Apr–Sep 1959 6-Month	69.4°F (20.8°C)	67.7°F (19.8°C)	1.7°F (1.0°C)	105th Coolest	Coolest since: 1958	1907
	69.4°F (20.8°C)	67.7°F (19.8°C)	1.7°F (1.0°C)	24th Warmest	Warmest since: 1955	2010
	Ties: 2016
Mar–Sep 1959 7-Month	65.5°F (18.6°C)	64.0°F (17.8°C)	1.5°F (0.8°C)	110th Coolest	Coolest since: 1958	1924
	65.5°F (18.6°C)	64.0°F (17.8°C)	1.5°F (0.8°C)	19th Warmest	Warmest since: 1955	2012
	Ties: 2005, 2011, 2021
Feb–Sep 1959 8-Month	61.4°F (16.3°C)	59.9°F (15.5°C)	1.5°F (0.8°C)	103rd Coolest	Coolest since: 1958	1904, 1924
Feb–Sep 1959 8-Month	61.4°F (16.3°C)	59.9°F (15.5°C)	1.5°F (0.8°C)	26th Warmest	Warmest since: 1955	2012
Jan–Sep 1959 9-Month	57.3°F (14.1°C)	56.3°F (13.5°C)	1.0°F (0.6°C)	89th Coolest	Coolest since: 1958	1979
	57.3°F (14.1°C)	56.3°F (13.5°C)	1.0°F (0.6°C)	40th Warmest	Warmest since: 1955	2012
	Ties: 1913, 1983
Dec 1958–Sep 1959 10-Month	54.2°F (12.3°C)	53.9°F (12.2°C)	0.3°F (0.1°C)	70th Coolest	Coolest since: 1958	1904
Dec 1958–Sep 1959 10-Month	54.2°F (12.3°C)	53.9°F (12.2°C)	0.3°F (0.1°C)	58th Warmest	Warmest since: 1957	2012
Nov 1958–Sep 1959 11-Month	53.3°F (11.8°C)	52.8°F (11.6°C)	0.5°F (0.2°C)	75th Coolest	Coolest since: 1958	1904
	53.3°F (11.8°C)	52.8°F (11.6°C)	0.5°F (0.2°C)	53rd Warmest	Warmest since: 1957	2012
	Ties: 1896, 1908, 1973, 1992
Oct 1958–Sep 1959 12-Month	53.5°F (11.9°C)	53.1°F (11.7°C)	0.4°F (0.2°C)	74th Coolest	Coolest since: 1958	1904
	53.5°F (11.9°C)	53.1°F (11.7°C)	0.4°F (0.2°C)	54th Warmest	Warmest since: 1957	2012
	Ties: 1900, 1930, 1974
Apr 1958–Sep 1959 18-Month	57.9°F (14.4°C)	58.0°F (14.4°C)	-0.1°F (0.0°C)	51st Coolest	Coolest since: 1958	1918
	57.9°F (14.4°C)	58.0°F (14.4°C)	-0.1°F (0.0°C)	77th Warmest	Warmest since: 1957	2012
	Ties: 1897, 1915, 1930, 1952, 1985
Oct 1957–Sep 1959 24-Month	52.5°F (11.4°C)	53.1°F (11.7°C)	-0.6°F (-0.3°C)	33rd Coolest	Coolest since: 1952	1979
	52.5°F (11.4°C)	53.1°F (11.7°C)	-0.6°F (-0.3°C)	94th Warmest	Warmest since: 1958	2017
	Ties: 1897, 1916, 1929, 1952, 1967
Oct 1956–Sep 1959 36-Month	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	53rd Coolest	Coolest since: 1958	1979
	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1957	2018
	Ties: 1898, 1911, 1925, 1986, 1998
Oct 1955–Sep 1959 48-Month	52.9°F (11.6°C)	53.0°F (11.7°C)	-0.1°F (-0.1°C)	45th Coolest	Coolest since: 1951	1980
	52.9°F (11.6°C)	53.0°F (11.7°C)	-0.1°F (-0.1°C)	80th Warmest	Warmest since: 1958	2019
	Ties: 1901, 1951, 1967, 1973, 1983
Oct 1954–Sep 1959 60-Month	53.2°F (11.8°C)	53.0°F (11.7°C)	0.2°F (0.1°C)	58th Coolest	Coolest since: 1952	1982
	53.2°F (11.8°C)	53.0°F (11.7°C)	0.2°F (0.1°C)	66th Warmest	Warmest since: 1958	2020
	Ties: 1940, 1947, 1948, 1975, 1998

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published November 2022, retrieved on December 3, 2022 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings