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 1948

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1948 1-Month	65.8°F (18.8°C)	63.7°F (17.6°C)	2.1°F (1.2°C)	94th Coolest	Coolest since: 1947	1918
September 1948 1-Month	65.8°F (18.8°C)	63.7°F (17.6°C)	2.1°F (1.2°C)	35th Warmest	Warmest since: 1941	1897
Aug–Sep 1948 2-Month	68.8°F (20.4°C)	67.5°F (19.7°C)	1.3°F (0.7°C)	92nd Coolest	Coolest since: 1946	1902
	68.8°F (20.4°C)	67.5°F (19.7°C)	1.3°F (0.7°C)	37th Warmest	Warmest since: 1947	1947
	Ties: 1944
Jul–Sep 1948 3-Month	70.4°F (21.3°C)	69.4°F (20.8°C)	1.0°F (0.5°C)	89th Coolest	Coolest since: 1946	1924
	70.4°F (21.3°C)	69.4°F (20.8°C)	1.0°F (0.5°C)	40th Warmest	Warmest since: 1947	1936
	Ties: 1898, 1934, 1937
Jun–Sep 1948 4-Month	69.6°F (20.9°C)	69.2°F (20.7°C)	0.4°F (0.2°C)	70th Coolest	Coolest since: 1946	1915
	69.6°F (20.9°C)	69.2°F (20.7°C)	0.4°F (0.2°C)	59th Warmest	Warmest since: 1947	2005
	Ties: 1923
May–Sep 1948 5-Month	66.7°F (19.3°C)	67.1°F (19.5°C)	-0.4°F (-0.2°C)	41st Coolest	Coolest since: 1946	1924
	66.7°F (19.3°C)	67.1°F (19.5°C)	-0.4°F (-0.2°C)	88th Warmest	Warmest since: 1947	1921, 1988
	Ties: 1905, 1918, 1920, 1960, 1963, 1993, 2014
Apr–Sep 1948 6-Month	64.3°F (17.9°C)	63.9°F (17.7°C)	0.4°F (0.2°C)	71st Coolest	Coolest since: 1947	1907
	64.3°F (17.9°C)	63.9°F (17.7°C)	0.4°F (0.2°C)	58th Warmest	Warmest since: 1944	1921
	Ties: 1932, 1942, 1949, 2000
Mar–Sep 1948 7-Month	60.1°F (15.6°C)	59.9°F (15.5°C)	0.2°F (0.1°C)	60th Coolest	Coolest since: 1947	1924
	60.1°F (15.6°C)	59.9°F (15.5°C)	0.2°F (0.1°C)	69th Warmest	Warmest since: 1946	2012
	Ties: 1905, 1981
Feb–Sep 1948 8-Month	55.5°F (13.1°C)	55.5°F (13.1°C)	0.0°F (0.0°C)	62nd Coolest	Coolest since: 1947	1904, 1917
	55.5°F (13.1°C)	55.5°F (13.1°C)	0.0°F (0.0°C)	67th Warmest	Warmest since: 1946	2012
	Ties: 1945
Jan–Sep 1948 9-Month	51.2°F (10.7°C)	51.7°F (10.9°C)	-0.5°F (-0.2°C)	42nd Coolest	Coolest since: 1947	1904, 1912
	51.2°F (10.7°C)	51.7°F (10.9°C)	-0.5°F (-0.2°C)	87th Warmest	Warmest since: 1946	2012
	Ties: 1901, 1903, 1909, 1945, 1970, 2003
Dec 1947–Sep 1948 10-Month	48.9°F (9.4°C)	49.2°F (9.6°C)	-0.3°F (-0.2°C)	48th Coolest	Coolest since: 1947	1904
	48.9°F (9.4°C)	49.2°F (9.6°C)	-0.3°F (-0.2°C)	80th Warmest	Warmest since: 1946	2012
	Ties: 1927, 1959, 1961, 1966, 1977, 2008
Nov 1947–Sep 1948 11-Month	47.3°F (8.5°C)	48.1°F (8.9°C)	-0.8°F (-0.4°C)	32nd Coolest	Coolest since: 1943	1904
	47.3°F (8.5°C)	48.1°F (8.9°C)	-0.8°F (-0.4°C)	96th Warmest	Warmest since: 1947	2012
	Ties: 1958
Oct 1947–Sep 1948 12-Month	48.4°F (9.1°C)	48.5°F (9.2°C)	-0.1°F (-0.1°C)	51st Coolest	Coolest since: 1945	1904
	48.4°F (9.1°C)	48.5°F (9.2°C)	-0.1°F (-0.1°C)	77th Warmest	Warmest since: 1947	2012
	Ties: 1897, 1903, 1961, 1966
Apr 1947–Sep 1948 18-Month	53.4°F (11.9°C)	53.6°F (12.0°C)	-0.2°F (-0.1°C)	47th Coolest	Coolest since: 1946	1904
	53.4°F (11.9°C)	53.6°F (12.0°C)	-0.2°F (-0.1°C)	81st Warmest	Warmest since: 1947	2012
	Ties: 1940, 1959, 1965, 1969
Oct 1946–Sep 1948 24-Month	48.4°F (9.1°C)	48.4°F (9.1°C)	0.0°F (0.0°C)	51st Coolest	Coolest since: 1946	1918
	48.4°F (9.1°C)	48.4°F (9.1°C)	0.0°F (0.0°C)	76th Warmest	Warmest since: 1947	2017
	Ties: 1909, 1915, 1945, 1972, 1985, 1993
Oct 1945–Sep 1948 36-Month	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	60th Coolest	Coolest since: 1947	1979
	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	66th Warmest	Warmest since: 1946	2000
	Ties: 1900, 1915, 1946, 1950, 1977
Oct 1944–Sep 1948 48-Month	48.3°F (9.1°C)	48.4°F (9.1°C)	-0.1°F (0.0°C)	43rd Coolest	Coolest since: 1946	1905, 1918
	48.3°F (9.1°C)	48.4°F (9.1°C)	-0.1°F (0.0°C)	82nd Warmest	Warmest since: 1947	2001, 2002, 2019
	Ties: 1899, 1903, 1937, 1946, 1959, 1966, 1967, 1996
Oct 1943–Sep 1948 60-Month	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	53rd Coolest	Coolest since: 1947	1905, 1906
	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	71st Warmest	Warmest since: 1946	2002
	Ties: 1900, 1901, 1938, 1940, 1949, 1950, 1974, 1984

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings