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 1959

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1959 1-Month	66.2°F (19.0°C)	63.7°F (17.6°C)	2.5°F (1.4°C)	98th Coolest	Coolest since: 1958	1918
September 1959 1-Month	66.2°F (19.0°C)	63.7°F (17.6°C)	2.5°F (1.4°C)	31st Warmest	Warmest since: 1954	1897
Aug–Sep 1959 2-Month	70.9°F (21.6°C)	67.4°F (19.7°C)	3.5°F (1.9°C)	122nd Coolest	Coolest since: 1958	1902
Aug–Sep 1959 2-Month	70.9°F (21.6°C)	67.4°F (19.7°C)	3.5°F (1.9°C)	7th Warmest	Warmest since: 1947	1947
Jul–Sep 1959 3-Month	71.3°F (21.8°C)	69.4°F (20.8°C)	1.9°F (1.0°C)	109th Coolest	Coolest since: 1958	1924
	71.3°F (21.8°C)	69.4°F (20.8°C)	1.9°F (1.0°C)	20th Warmest	Warmest since: 1955	1936
	Ties: 1897, 1901
Jun–Sep 1959 4-Month	71.1°F (21.7°C)	69.2°F (20.7°C)	1.9°F (1.0°C)	110th Coolest	Coolest since: 1958	1915
Jun–Sep 1959 4-Month	71.1°F (21.7°C)	69.2°F (20.7°C)	1.9°F (1.0°C)	19th Warmest	Warmest since: 1936	2005
May–Sep 1959 5-Month	69.7°F (20.9°C)	67.1°F (19.5°C)	2.6°F (1.4°C)	121st Coolest	Coolest since: 1958	1924
	69.7°F (20.9°C)	67.1°F (19.5°C)	2.6°F (1.4°C)	8th Warmest	Warmest since: 1936	1921, 1988
	Ties: 1933, 1998, 2005
Apr–Sep 1959 6-Month	66.1°F (18.9°C)	63.9°F (17.7°C)	2.2°F (1.2°C)	116th Coolest	Coolest since: 1958	1907
	66.1°F (18.9°C)	63.9°F (17.7°C)	2.2°F (1.2°C)	13th Warmest	Warmest since: 1955	1921
	Ties: 1977, 2016
Mar–Sep 1959 7-Month	61.7°F (16.5°C)	59.9°F (15.5°C)	1.8°F (1.0°C)	114th Coolest	Coolest since: 1958	1924
Mar–Sep 1959 7-Month	61.7°F (16.5°C)	59.9°F (15.5°C)	1.8°F (1.0°C)	15th Warmest	Warmest since: 1955	2012
Feb–Sep 1959 8-Month	56.8°F (13.8°C)	55.5°F (13.1°C)	1.3°F (0.7°C)	100th Coolest	Coolest since: 1958	1904, 1917
	56.8°F (13.8°C)	55.5°F (13.1°C)	1.3°F (0.7°C)	29th Warmest	Warmest since: 1955	2012
	Ties: 1976, 1986
Jan–Sep 1959 9-Month	52.2°F (11.2°C)	51.7°F (10.9°C)	0.5°F (0.3°C)	77th Coolest	Coolest since: 1958	1904, 1912
	52.2°F (11.2°C)	51.7°F (10.9°C)	0.5°F (0.3°C)	52nd Warmest	Warmest since: 1955	2012
	Ties: 1906, 1942, 1981, 2011
Dec 1958–Sep 1959 10-Month	48.9°F (9.4°C)	49.1°F (9.5°C)	-0.2°F (-0.1°C)	48th Coolest	Coolest since: 1958	1904
	48.9°F (9.4°C)	49.1°F (9.5°C)	-0.2°F (-0.1°C)	80th Warmest	Warmest since: 1957	2012
	Ties: 1927, 1948, 1961, 1966, 1977, 2008
Nov 1958–Sep 1959 11-Month	48.2°F (9.0°C)	48.2°F (9.0°C)	0.0°F (0.0°C)	64th Coolest	Coolest since: 1958	1904
	48.2°F (9.0°C)	48.2°F (9.0°C)	0.0°F (0.0°C)	64th Warmest	Warmest since: 1957	2012
	Ties: 1957, 1975, 1989, 1992
Oct 1958–Sep 1959 12-Month	48.7°F (9.3°C)	48.5°F (9.2°C)	0.2°F (0.1°C)	73rd Coolest	Coolest since: 1958	1904
	48.7°F (9.3°C)	48.5°F (9.2°C)	0.2°F (0.1°C)	55th Warmest	Warmest since: 1957	2012
	Ties: 1901, 1908, 1946, 1974, 1981
Apr 1958–Sep 1959 18-Month	53.4°F (11.9°C)	53.6°F (12.0°C)	-0.2°F (-0.1°C)	47th Coolest	Coolest since: 1958	1904
	53.4°F (11.9°C)	53.6°F (12.0°C)	-0.2°F (-0.1°C)	81st Warmest	Warmest since: 1957	2012
	Ties: 1940, 1948, 1965, 1969
Oct 1957–Sep 1959 24-Month	48.1°F (8.9°C)	48.5°F (9.2°C)	-0.4°F (-0.3°C)	41st Coolest	Coolest since: 1952	1918
	48.1°F (8.9°C)	48.5°F (9.2°C)	-0.4°F (-0.3°C)	86th Warmest	Warmest since: 1958	2017
	Ties: 1900, 1910
Oct 1956–Sep 1959 36-Month	48.4°F (9.1°C)	48.5°F (9.2°C)	-0.1°F (-0.1°C)	55th Coolest	Coolest since: 1958	1979
	48.4°F (9.1°C)	48.5°F (9.2°C)	-0.1°F (-0.1°C)	71st Warmest	Warmest since: 1957	2000
	Ties: 1911, 1936, 1984, 1996
Oct 1955–Sep 1959 48-Month	48.3°F (9.1°C)	48.4°F (9.1°C)	-0.1°F (0.0°C)	43rd Coolest	Coolest since: 1953	1905, 1918
	48.3°F (9.1°C)	48.4°F (9.1°C)	-0.1°F (0.0°C)	82nd Warmest	Warmest since: 1958	2001, 2002, 2019
	Ties: 1899, 1903, 1937, 1946, 1948, 1966, 1967, 1996
Oct 1954–Sep 1959 60-Month	48.7°F (9.3°C)	48.4°F (9.1°C)	0.3°F (0.2°C)	73rd Coolest	Coolest since: 1954	1905, 1906
	48.7°F (9.3°C)	48.4°F (9.1°C)	0.3°F (0.2°C)	51st Warmest	Warmest since: 1958	2002
	Ties: 1944, 1945, 1977

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings