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 1949

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1949 1-Month	58.1°F (14.5°C)	63.7°F (17.6°C)	-5.6°F (-3.1°C)	2nd Coolest	Coolest since: 1924	1918
	58.1°F (14.5°C)	63.7°F (17.6°C)	-5.6°F (-3.1°C)	127th Warmest	Warmest since: 1948	1897
	Ties: 1924
Aug–Sep 1949 2-Month	65.1°F (18.4°C)	67.4°F (19.7°C)	-2.3°F (-1.3°C)	10th Coolest	Coolest since: 1924	1902
	65.1°F (18.4°C)	67.4°F (19.7°C)	-2.3°F (-1.3°C)	119th Warmest	Warmest since: 1948	1947
	Ties: 1950
Jul–Sep 1949 3-Month	68.8°F (20.4°C)	69.4°F (20.8°C)	-0.6°F (-0.4°C)	42nd Coolest	Coolest since: 1946	1924
	68.8°F (20.4°C)	69.4°F (20.8°C)	-0.6°F (-0.4°C)	87th Warmest	Warmest since: 1948	1936
	Ties: 1957, 1985
Jun–Sep 1949 4-Month	69.7°F (20.9°C)	69.2°F (20.7°C)	0.5°F (0.2°C)	76th Coolest	Coolest since: 1948	1915
	69.7°F (20.9°C)	69.2°F (20.7°C)	0.5°F (0.2°C)	53rd Warmest	Warmest since: 1947	2005
	Ties: 1914, 1932, 1970, 1984, 2008
May–Sep 1949 5-Month	67.8°F (19.9°C)	67.1°F (19.5°C)	0.7°F (0.4°C)	80th Coolest	Coolest since: 1948	1924
	67.8°F (19.9°C)	67.1°F (19.5°C)	0.7°F (0.4°C)	49th Warmest	Warmest since: 1944	1921, 1988
	Ties: 1925, 1932, 1952, 2001
Apr–Sep 1949 6-Month	64.3°F (17.9°C)	63.9°F (17.7°C)	0.4°F (0.2°C)	71st Coolest	Coolest since: 1948	1907
	64.3°F (17.9°C)	63.9°F (17.7°C)	0.4°F (0.2°C)	58th Warmest	Warmest since: 1948	1921
	Ties: 1932, 1942, 1948, 2000
Mar–Sep 1949 7-Month	60.3°F (15.7°C)	59.9°F (15.5°C)	0.4°F (0.2°C)	69th Coolest	Coolest since: 1948	1924
	60.3°F (15.7°C)	59.9°F (15.5°C)	0.4°F (0.2°C)	60th Warmest	Warmest since: 1946	2012
	Ties: 1900, 1944, 1952, 1954, 1994
Feb–Sep 1949 8-Month	55.8°F (13.2°C)	55.5°F (13.1°C)	0.3°F (0.1°C)	72nd Coolest	Coolest since: 1948	1904, 1917
	55.8°F (13.2°C)	55.5°F (13.1°C)	0.3°F (0.1°C)	57th Warmest	Warmest since: 1946	2012
	Ties: 1897, 1908, 1910, 1957
Jan–Sep 1949 9-Month	52.4°F (11.3°C)	51.7°F (10.9°C)	0.7°F (0.4°C)	83rd Coolest	Coolest since: 1948	1904, 1912
	52.4°F (11.3°C)	51.7°F (10.9°C)	0.7°F (0.4°C)	46th Warmest	Warmest since: 1946	2012
	Ties: 1976, 1977, 2004
Dec 1948–Sep 1949 10-Month	49.9°F (9.9°C)	49.1°F (9.5°C)	0.8°F (0.4°C)	82nd Coolest	Coolest since: 1948	1904
	49.9°F (9.9°C)	49.1°F (9.5°C)	0.8°F (0.4°C)	46th Warmest	Warmest since: 1944	2012
	Ties: 1898, 1952, 2019
Nov 1948–Sep 1949 11-Month	49.1°F (9.5°C)	48.1°F (8.9°C)	1.0°F (0.6°C)	92nd Coolest	Coolest since: 1948	1904
	49.1°F (9.5°C)	48.1°F (8.9°C)	1.0°F (0.6°C)	36th Warmest	Warmest since: 1942	2012
	Ties: 1938, 1941
Oct 1948–Sep 1949 12-Month	49.2°F (9.6°C)	48.5°F (9.2°C)	0.7°F (0.4°C)	87th Coolest	Coolest since: 1948	1904
	49.2°F (9.6°C)	48.5°F (9.2°C)	0.7°F (0.4°C)	41st Warmest	Warmest since: 1942	2012
	Ties: 1900, 1911, 1973, 1985
Apr 1948–Sep 1949 18-Month	54.2°F (12.3°C)	53.6°F (12.0°C)	0.6°F (0.3°C)	81st Coolest	Coolest since: 1948	1904
	54.2°F (12.3°C)	53.6°F (12.0°C)	0.6°F (0.3°C)	47th Warmest	Warmest since: 1942	2012
	Ties: 1897, 1956, 1986, 2019
Oct 1947–Sep 1949 24-Month	48.8°F (9.3°C)	48.5°F (9.2°C)	0.3°F (0.1°C)	75th Coolest	Coolest since: 1948	1918
Oct 1947–Sep 1949 24-Month	48.8°F (9.3°C)	48.5°F (9.2°C)	0.3°F (0.1°C)	52nd Warmest	Warmest since: 1942	2017
Oct 1946–Sep 1949 36-Month	48.7°F (9.3°C)	48.4°F (9.1°C)	0.3°F (0.2°C)	73rd Coolest	Coolest since: 1948	1979
	48.7°F (9.3°C)	48.4°F (9.1°C)	0.3°F (0.2°C)	53rd Warmest	Warmest since: 1944	2000
	Ties: 1931, 1973, 1983, 2016
Oct 1945–Sep 1949 48-Month	48.7°F (9.3°C)	48.4°F (9.1°C)	0.3°F (0.2°C)	74th Coolest	Coolest since: 1948	1905, 1918
	48.7°F (9.3°C)	48.4°F (9.1°C)	0.3°F (0.2°C)	51st Warmest	Warmest since: 1944	2001, 2002, 2019
	Ties: 1936, 1939, 1940, 1954, 1958, 1974, 1975, 1983
Oct 1944–Sep 1949 60-Month	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	53rd Coolest	Coolest since: 1948	1905, 1906
	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	71st Warmest	Warmest since: 1948	2002
	Ties: 1900, 1901, 1938, 1940, 1948, 1950, 1974, 1984

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings