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 2. Northeast

Average Temperature Rankings, September 1911

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1911 1-Month	65.0°F (18.3°C)	63.7°F (17.6°C)	1.3°F (0.7°C)	83rd Coolest	Coolest since: 1910	1918
	65.0°F (18.3°C)	63.7°F (17.6°C)	1.3°F (0.7°C)	46th Warmest	Warmest since: 1908	1897
	Ties: 1973, 1994
Aug–Sep 1911 2-Month	67.4°F (19.7°C)	67.4°F (19.7°C)	0.0°F (0.0°C)	58th Coolest	Coolest since: 1910	1902
	67.4°F (19.7°C)	67.4°F (19.7°C)	0.0°F (0.0°C)	71st Warmest	Warmest since: 1908	1947
	Ties: 2012, 2014
Jul–Sep 1911 3-Month	69.6°F (20.9°C)	69.3°F (20.7°C)	0.3°F (0.2°C)	67th Coolest	Coolest since: 1910	1924
	69.6°F (20.9°C)	69.3°F (20.7°C)	0.3°F (0.2°C)	62nd Warmest	Warmest since: 1910	1936
	Ties: 1910, 2003
Jun–Sep 1911 4-Month	70.3°F (21.3°C)	69.2°F (20.7°C)	1.1°F (0.6°C)	91st Coolest	Coolest since: 1910	1915
	70.3°F (21.3°C)	69.2°F (20.7°C)	1.1°F (0.6°C)	38th Warmest	Warmest since: 1901	2005
	Ties: 1978
May–Sep 1911 5-Month	69.2°F (20.7°C)	67.1°F (19.5°C)	2.1°F (1.2°C)	111th Coolest	Coolest since: 1910	1924
	69.2°F (20.7°C)	67.1°F (19.5°C)	2.1°F (1.2°C)	18th Warmest	Warmest to Date	1921, 1988
	Ties: 1939
Apr–Sep 1911 6-Month	65.2°F (18.4°C)	63.9°F (17.7°C)	1.3°F (0.7°C)	100th Coolest	Coolest since: 1910	1907
	65.2°F (18.4°C)	63.9°F (17.7°C)	1.3°F (0.7°C)	29th Warmest	Warmest since: 1900	1921
	Ties: 1899, 1944
Mar–Sep 1911 7-Month	61.2°F (16.2°C)	59.9°F (15.5°C)	1.3°F (0.7°C)	104th Coolest	Coolest since: 1910	1924
	61.2°F (16.2°C)	59.9°F (15.5°C)	1.3°F (0.7°C)	25th Warmest	Warmest to Date	2012
	Ties: 1938, 1999, 2006, 2022
Feb–Sep 1911 8-Month	57.2°F (14.0°C)	55.5°F (13.1°C)	1.7°F (0.9°C)	110th Coolest	Coolest since: 1910	1904, 1917
	57.2°F (14.0°C)	55.5°F (13.1°C)	1.7°F (0.9°C)	19th Warmest	Warmest to Date	2012
	Ties: 2002, 2020, 2021
Jan–Sep 1911 9-Month	53.5°F (11.9°C)	51.7°F (10.9°C)	1.8°F (1.0°C)	106th Coolest	Coolest since: 1910	1904, 1912
	53.5°F (11.9°C)	51.7°F (10.9°C)	1.8°F (1.0°C)	23rd Warmest	Warmest to Date	2012
	Ties: 1954
Dec 1910–Sep 1911 10-Month	50.3°F (10.2°C)	49.1°F (9.5°C)	1.2°F (0.7°C)	92nd Coolest	Coolest since: 1910	1904
	50.3°F (10.2°C)	49.1°F (9.5°C)	1.2°F (0.7°C)	36th Warmest	Warmest since: 1896	2012
	Ties: 2004
Nov 1910–Sep 1911 11-Month	48.7°F (9.3°C)	48.1°F (8.9°C)	0.6°F (0.4°C)	83rd Coolest	Coolest since: 1910	1904
	48.7°F (9.3°C)	48.1°F (8.9°C)	0.6°F (0.4°C)	45th Warmest	Warmest since: 1908	2012
	Ties: 1898, 1908, 1946, 1964, 1981, 1985
Oct 1910–Sep 1911 12-Month	49.2°F (9.6°C)	48.5°F (9.2°C)	0.7°F (0.4°C)	87th Coolest	Coolest since: 1910	1904
	49.2°F (9.6°C)	48.5°F (9.2°C)	0.7°F (0.4°C)	41st Warmest	Warmest since: 1900	2012
	Ties: 1900, 1949, 1973, 1985
Apr 1910–Sep 1911 18-Month	53.9°F (12.2°C)	53.6°F (12.0°C)	0.3°F (0.2°C)	72nd Coolest	Coolest since: 1910	1904
	53.9°F (12.2°C)	53.6°F (12.0°C)	0.3°F (0.2°C)	56th Warmest	Warmest since: 1901	2012
	Ties: 1923, 1937, 1944, 1957, 1974
Oct 1909–Sep 1911 24-Month	48.6°F (9.2°C)	48.5°F (9.2°C)	0.1°F (0.0°C)	71st Coolest	Coolest since: 1910	1918
	48.6°F (9.2°C)	48.5°F (9.2°C)	0.1°F (0.0°C)	56th Warmest	Warmest since: 1901	2017
	Ties: 1941, 1943, 1947, 1975, 1981, 1996
Oct 1908–Sep 1911 36-Month	48.4°F (9.1°C)	48.4°F (9.1°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1910	1979
	48.4°F (9.1°C)	48.4°F (9.1°C)	0.0°F (0.0°C)	71st Warmest	Warmest since: 1900	2000
	Ties: 1936, 1959, 1984, 1996
Oct 1907–Sep 1911 48-Month	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	54th Coolest	Coolest since: 1910	1905, 1918
	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	71st Warmest	Warmest since: 1901	2001, 2002, 2019
	Ties: 1900, 1916, 1945, 1947, 1950, 1984
Oct 1906–Sep 1911 60-Month	48.2°F (9.0°C)	48.4°F (9.1°C)	-0.2°F (-0.1°C)	39th Coolest	Coolest since: 1910	1905, 1906
	48.2°F (9.0°C)	48.4°F (9.1°C)	-0.2°F (-0.1°C)	85th Warmest	Warmest since: 1910	2002
	Ties: 1902, 1910, 1914, 1921, 1961, 1972, 1978

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings