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 1915

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1915 1-Month	64.2°F (17.9°C)	63.7°F (17.6°C)	0.5°F (0.3°C)	71st Coolest	Coolest since: 1914	1918
	64.2°F (17.9°C)	63.7°F (17.6°C)	0.5°F (0.3°C)	58th Warmest	Warmest since: 1912	1897
	Ties: 1983, 2009
Aug–Sep 1915 2-Month	64.2°F (17.9°C)	67.4°F (19.7°C)	-3.2°F (-1.8°C)	5th Coolest	Coolest since: 1902	1902
Aug–Sep 1915 2-Month	64.2°F (17.9°C)	67.4°F (19.7°C)	-3.2°F (-1.8°C)	124th Warmest	Warmest since: 1914	1947
Jul–Sep 1915 3-Month	65.8°F (18.8°C)	69.4°F (20.8°C)	-3.6°F (-2.0°C)	3rd Coolest	Coolest since: 1915	1924
	65.8°F (18.8°C)	69.4°F (20.8°C)	-3.6°F (-2.0°C)	126th Warmest	Warmest since: 1914	1936
	Ties: 1967
Jun–Sep 1915 4-Month	65.4°F (18.6°C)	69.2°F (20.7°C)	-3.8°F (-2.1°C)	1st Coolest	Coolest since: 1915	1915
Jun–Sep 1915 4-Month	65.4°F (18.6°C)	69.2°F (20.7°C)	-3.8°F (-2.1°C)	128th Warmest	Warmest since: 1914	2005
May–Sep 1915 5-Month	63.2°F (17.3°C)	67.1°F (19.5°C)	-3.9°F (-2.2°C)	2nd Coolest	Coolest since: 1915	1924
May–Sep 1915 5-Month	63.2°F (17.3°C)	67.1°F (19.5°C)	-3.9°F (-2.2°C)	127th Warmest	Warmest since: 1914	1921, 1988
Apr–Sep 1915 6-Month	61.9°F (16.6°C)	63.9°F (17.7°C)	-2.0°F (-1.1°C)	11th Coolest	Coolest since: 1907	1907
	61.9°F (16.6°C)	63.9°F (17.7°C)	-2.0°F (-1.1°C)	118th Warmest	Warmest since: 1914	1921
	Ties: 1951
Mar–Sep 1915 7-Month	57.6°F (14.2°C)	59.9°F (15.5°C)	-2.3°F (-1.3°C)	7th Coolest	Coolest since: 1907	1924
Mar–Sep 1915 7-Month	57.6°F (14.2°C)	59.9°F (15.5°C)	-2.3°F (-1.3°C)	122nd Warmest	Warmest since: 1914	2012
Feb–Sep 1915 8-Month	54.3°F (12.4°C)	55.5°F (13.1°C)	-1.2°F (-0.7°C)	23rd Coolest	Coolest since: 1912	1904, 1917
	54.3°F (12.4°C)	55.5°F (13.1°C)	-1.2°F (-0.7°C)	106th Warmest	Warmest since: 1914	2012
	Ties: 1905, 1929
Jan–Sep 1915 9-Month	50.2°F (10.1°C)	51.7°F (10.9°C)	-1.5°F (-0.8°C)	19th Coolest	Coolest since: 1912	1904, 1912
	50.2°F (10.1°C)	51.7°F (10.9°C)	-1.5°F (-0.8°C)	110th Warmest	Warmest since: 1914	2012
	Ties: 1902, 1926, 1972
Dec 1914–Sep 1915 10-Month	47.1°F (8.4°C)	49.1°F (9.5°C)	-2.0°F (-1.1°C)	11th Coolest	Coolest since: 1912	1904
	47.1°F (8.4°C)	49.1°F (9.5°C)	-2.0°F (-1.1°C)	117th Warmest	Warmest since: 1914	2012
	Ties: 1924
Nov 1914–Sep 1915 11-Month	46.5°F (8.1°C)	48.2°F (9.0°C)	-1.7°F (-0.9°C)	15th Coolest	Coolest since: 1912	1904
Nov 1914–Sep 1915 11-Month	46.5°F (8.1°C)	48.2°F (9.0°C)	-1.7°F (-0.9°C)	113th Warmest	Warmest since: 1914	2012
Oct 1914–Sep 1915 12-Month	47.2°F (8.4°C)	48.4°F (9.1°C)	-1.2°F (-0.7°C)	17th Coolest	Coolest since: 1912	1904
	47.2°F (8.4°C)	48.4°F (9.1°C)	-1.2°F (-0.7°C)	111th Warmest	Warmest since: 1914	2012
	Ties: 1907, 1977
Apr 1914–Sep 1915 18-Month	53.1°F (11.7°C)	53.6°F (12.0°C)	-0.5°F (-0.3°C)	37th Coolest	Coolest since: 1912	1904
	53.1°F (11.7°C)	53.6°F (12.0°C)	-0.5°F (-0.3°C)	91st Warmest	Warmest since: 1914	2012
	Ties: 1907, 1925, 1943, 1946, 2015
Oct 1913–Sep 1915 24-Month	48.4°F (9.1°C)	48.5°F (9.2°C)	-0.1°F (-0.1°C)	51st Coolest	Coolest since: 1913	1918
	48.4°F (9.1°C)	48.5°F (9.2°C)	-0.1°F (-0.1°C)	76th Warmest	Warmest since: 1914	2017
	Ties: 1909, 1945, 1948, 1972, 1985, 1993
Oct 1912–Sep 1915 36-Month	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	60th Coolest	Coolest since: 1914	1979
	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	66th Warmest	Warmest since: 1900	2000
	Ties: 1900, 1946, 1948, 1950, 1977
Oct 1911–Sep 1915 48-Month	47.7°F (8.7°C)	48.4°F (9.1°C)	-0.7°F (-0.4°C)	17th Coolest	Coolest since: 1912	1905, 1918
	47.7°F (8.7°C)	48.4°F (9.1°C)	-0.7°F (-0.4°C)	108th Warmest	Warmest since: 1914	2001, 2002, 2019
	Ties: 1917, 1928
Oct 1910–Sep 1915 60-Month	48.0°F (8.9°C)	48.4°F (9.1°C)	-0.4°F (-0.2°C)	24th Coolest	Coolest since: 1913	1905, 1906
	48.0°F (8.9°C)	48.4°F (9.1°C)	-0.4°F (-0.2°C)	100th Warmest	Warmest since: 1914	2002
	Ties: 1903, 1909, 1951, 1952, 1964, 1969, 1970, 1971

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