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 8. Southwest

Average Temperature Rankings, August 1947

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
August 1947 1-Month	82.7°F (28.2°C)	76.0°F (24.4°C)	6.7°F (3.8°C)	127th Coolest	Coolest since: 1946	1915
August 1947 1-Month	82.7°F (28.2°C)	76.0°F (24.4°C)	6.7°F (3.8°C)	2nd Warmest	Warmest since: 1936	1936
Jul–Aug 1947 2-Month	78.4°F (25.8°C)	76.9°F (24.9°C)	1.5°F (0.9°C)	101st Coolest	Coolest since: 1946	1967
	78.4°F (25.8°C)	76.9°F (24.9°C)	1.5°F (0.9°C)	28th Warmest	Warmest since: 1943	1936
	Ties: 1926, 1932, 2006
Jun–Aug 1947 3-Month	76.5°F (24.7°C)	75.9°F (24.4°C)	0.6°F (0.3°C)	83rd Coolest	Coolest since: 1946	1915, 1927
	76.5°F (24.7°C)	75.9°F (24.4°C)	0.6°F (0.3°C)	46th Warmest	Warmest since: 1944	1936
	Ties: 1899, 1977, 1986, 1999
May–Aug 1947 4-Month	73.1°F (22.8°C)	73.2°F (22.9°C)	-0.1°F (-0.1°C)	57th Coolest	Coolest since: 1946	1967
	73.1°F (22.8°C)	73.2°F (22.9°C)	-0.1°F (-0.1°C)	72nd Warmest	Warmest since: 1944	1936
	Ties: 1908, 1919
Apr–Aug 1947 5-Month	69.6°F (20.9°C)	69.7°F (20.9°C)	-0.1°F (0.0°C)	56th Coolest	Coolest since: 1946	1907
	69.6°F (20.9°C)	69.7°F (20.9°C)	-0.1°F (0.0°C)	73rd Warmest	Warmest since: 1944	2010
	Ties: 1895
Mar–Aug 1947 6-Month	64.1°F (17.8°C)	65.5°F (18.6°C)	-1.4°F (-0.8°C)	21st Coolest	Coolest since: 1928	1904
	64.1°F (17.8°C)	65.5°F (18.6°C)	-1.4°F (-0.8°C)	108th Warmest	Warmest since: 1946	2012
	Ties: 1996
Feb–Aug 1947 7-Month	59.0°F (15.0°C)	61.1°F (16.2°C)	-2.1°F (-1.2°C)	10th Coolest	Coolest since: 1924	1904
Feb–Aug 1947 7-Month	59.0°F (15.0°C)	61.1°F (16.2°C)	-2.1°F (-1.2°C)	119th Warmest	Warmest since: 1946	2012
Jan–Aug 1947 8-Month	56.1°F (13.4°C)	57.4°F (14.1°C)	-1.3°F (-0.7°C)	22nd Coolest	Coolest since: 1940	1912
	56.1°F (13.4°C)	57.4°F (14.1°C)	-1.3°F (-0.7°C)	107th Warmest	Warmest since: 1946	2012
	Ties: 1902, 1985
Dec 1946–Aug 1947 9-Month	54.3°F (12.4°C)	54.8°F (12.7°C)	-0.5°F (-0.3°C)	37th Coolest	Coolest since: 1945	1904
	54.3°F (12.4°C)	54.8°F (12.7°C)	-0.5°F (-0.3°C)	91st Warmest	Warmest since: 1946	2012
	Ties: 1927, 1994, 2001
Nov 1946–Aug 1947 10-Month	53.6°F (12.0°C)	53.7°F (12.1°C)	-0.1°F (-0.1°C)	47th Coolest	Coolest since: 1945	1904
	53.6°F (12.0°C)	53.7°F (12.1°C)	-0.1°F (-0.1°C)	81st Warmest	Warmest since: 1946	2012
	Ties: 1900, 1937, 1956, 1973, 1980, 2008
Oct 1946–Aug 1947 11-Month	54.3°F (12.4°C)	54.2°F (12.3°C)	0.1°F (0.1°C)	61st Coolest	Coolest since: 1945	1904
	54.3°F (12.4°C)	54.2°F (12.3°C)	0.1°F (0.1°C)	67th Warmest	Warmest since: 1946	2012
	Ties: 1903, 1908
Sep 1946–Aug 1947 12-Month	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	58th Coolest	Coolest since: 1945	1904
	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 1946	2012
	Ties: 1900, 1948, 1956
Mar 1946–Aug 1947 18-Month	59.2°F (15.1°C)	58.7°F (14.8°C)	0.5°F (0.3°C)	79th Coolest	Coolest since: 1946	1904
	59.2°F (15.1°C)	58.7°F (14.8°C)	0.5°F (0.3°C)	49th Warmest	Warmest since: 1946	2012
	Ties: 1933, 1941, 1946, 1949, 2004
Sep 1945–Aug 1947 24-Month	55.8°F (13.2°C)	55.4°F (13.0°C)	0.4°F (0.2°C)	84th Coolest	Coolest since: 1946	1979
	55.8°F (13.2°C)	55.4°F (13.0°C)	0.4°F (0.2°C)	43rd Warmest	Warmest since: 1943	2017
	Ties: 1901, 1909, 1931, 1974, 1986
Sep 1944–Aug 1947 36-Month	55.5°F (13.1°C)	55.4°F (13.0°C)	0.1°F (0.1°C)	69th Coolest	Coolest since: 1946	1979
	55.5°F (13.1°C)	55.4°F (13.0°C)	0.1°F (0.1°C)	57th Warmest	Warmest since: 1944	2018
	Ties: 1909, 1915, 1916, 1924, 1950, 1966, 1973, 1975
Sep 1943–Aug 1947 48-Month	55.4°F (13.0°C)	55.3°F (12.9°C)	0.1°F (0.1°C)	53rd Coolest	Coolest since: 1931	1980
	55.4°F (13.0°C)	55.3°F (12.9°C)	0.1°F (0.1°C)	72nd Warmest	Warmest since: 1946	2019
	Ties: 1914, 1921, 1931, 1950, 1953, 1986
Sep 1942–Aug 1947 60-Month	55.5°F (13.1°C)	55.3°F (12.9°C)	0.2°F (0.2°C)	59th Coolest	Coolest since: 1931	1906
	55.5°F (13.1°C)	55.3°F (12.9°C)	0.2°F (0.2°C)	65th Warmest	Warmest since: 1946	2020
	Ties: 1926, 1953

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