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 5. East

Average Temperature Rankings, August 1917

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
August 1917 1-Month	69.8°F (21.0°C)	72.1°F (22.3°C)	-2.3°F (-1.3°C)	20th Coolest	Coolest since: 1915	1915
	69.8°F (21.0°C)	72.1°F (22.3°C)	-2.3°F (-1.3°C)	109th Warmest	Warmest since: 1916	1947
	Ties: 1903, 1907, 1912, 1965, 2009
Jul–Aug 1917 2-Month	71.4°F (21.9°C)	73.3°F (22.9°C)	-1.9°F (-1.0°C)	18th Coolest	Coolest since: 1915	1915
	71.4°F (21.9°C)	73.3°F (22.9°C)	-1.9°F (-1.0°C)	111th Warmest	Warmest since: 1916	1936
	Ties: 1946, 1951, 1962, 1997
Jun–Aug 1917 3-Month	69.8°F (21.0°C)	72.3°F (22.4°C)	-2.5°F (-1.4°C)	8th Coolest	Coolest since: 1915	1915
	69.8°F (21.0°C)	72.3°F (22.4°C)	-2.5°F (-1.4°C)	121st Warmest	Warmest since: 1916	1936
	Ties: 1902, 1958
May–Aug 1917 4-Month	65.9°F (18.8°C)	69.5°F (20.8°C)	-3.6°F (-2.0°C)	3rd Coolest	Coolest since: 1915	1915
May–Aug 1917 4-Month	65.9°F (18.8°C)	69.5°F (20.8°C)	-3.6°F (-2.0°C)	126th Warmest	Warmest since: 1916	1934
Apr–Aug 1917 5-Month	62.1°F (16.7°C)	65.5°F (18.6°C)	-3.4°F (-1.9°C)	2nd Coolest	Coolest since: 1907	1907
Apr–Aug 1917 5-Month	62.1°F (16.7°C)	65.5°F (18.6°C)	-3.4°F (-1.9°C)	127th Warmest	Warmest since: 1916	1991
Mar–Aug 1917 6-Month	58.4°F (14.7°C)	61.0°F (16.1°C)	-2.6°F (-1.4°C)	6th Coolest	Coolest since: 1915	1904
	58.4°F (14.7°C)	61.0°F (16.1°C)	-2.6°F (-1.4°C)	123rd Warmest	Warmest since: 1916	2012
	Ties: 1950
Feb–Aug 1917 7-Month	53.0°F (11.7°C)	56.2°F (13.4°C)	-3.2°F (-1.7°C)	2nd Coolest	Coolest since: 1912	1904
	53.0°F (11.7°C)	56.2°F (13.4°C)	-3.2°F (-1.7°C)	127th Warmest	Warmest since: 1916	2012
	Ties: 1912
Jan–Aug 1917 8-Month	49.5°F (9.7°C)	52.2°F (11.2°C)	-2.7°F (-1.5°C)	8th Coolest	Coolest since: 1912	1904, 1912
Jan–Aug 1917 8-Month	49.5°F (9.7°C)	52.2°F (11.2°C)	-2.7°F (-1.5°C)	121st Warmest	Warmest since: 1916	2012
Dec 1916–Aug 1917 9-Month	46.8°F (8.2°C)	49.5°F (9.7°C)	-2.7°F (-1.5°C)	8th Coolest	Coolest since: 1912	1904
Dec 1916–Aug 1917 9-Month	46.8°F (8.2°C)	49.5°F (9.7°C)	-2.7°F (-1.5°C)	120th Warmest	Warmest since: 1916	2012
Nov 1916–Aug 1917 10-Month	46.2°F (7.9°C)	48.5°F (9.2°C)	-2.3°F (-1.3°C)	9th Coolest	Coolest since: 1912	1904
Nov 1916–Aug 1917 10-Month	46.2°F (7.9°C)	48.5°F (9.2°C)	-2.3°F (-1.3°C)	119th Warmest	Warmest since: 1916	2012
Oct 1916–Aug 1917 11-Month	46.8°F (8.2°C)	49.0°F (9.4°C)	-2.2°F (-1.2°C)	12th Coolest	Coolest since: 1912	1904
Oct 1916–Aug 1917 11-Month	46.8°F (8.2°C)	49.0°F (9.4°C)	-2.2°F (-1.2°C)	116th Warmest	Warmest since: 1916	2012
Sep 1916–Aug 1917 12-Month	48.2°F (9.0°C)	50.3°F (10.2°C)	-2.1°F (-1.2°C)	7th Coolest	Coolest since: 1912	1904
Sep 1916–Aug 1917 12-Month	48.2°F (9.0°C)	50.3°F (10.2°C)	-2.1°F (-1.2°C)	121st Warmest	Warmest since: 1916	2012
Mar 1916–Aug 1917 18-Month	52.3°F (11.3°C)	53.9°F (12.2°C)	-1.6°F (-0.9°C)	8th Coolest	Coolest since: 1912	1904
	52.3°F (11.3°C)	53.9°F (12.2°C)	-1.6°F (-0.9°C)	120th Warmest	Warmest since: 1916	2012
	Ties: 1902
Sep 1915–Aug 1917 24-Month	49.2°F (9.6°C)	50.3°F (10.2°C)	-1.1°F (-0.6°C)	13th Coolest	Coolest since: 1913	1905
	49.2°F (9.6°C)	50.3°F (10.2°C)	-1.1°F (-0.6°C)	114th Warmest	Warmest since: 1916	2017
	Ties: 1900, 1906, 1951, 1963
Sep 1914–Aug 1917 36-Month	49.1°F (9.5°C)	50.3°F (10.2°C)	-1.2°F (-0.7°C)	8th Coolest	Coolest since: 1912	1904
	49.1°F (9.5°C)	50.3°F (10.2°C)	-1.2°F (-0.7°C)	118th Warmest	Warmest since: 1916	2018
	Ties: 1919
Sep 1913–Aug 1917 48-Month	49.7°F (9.8°C)	50.3°F (10.2°C)	-0.6°F (-0.4°C)	28th Coolest	Coolest since: 1915	1905
	49.7°F (9.8°C)	50.3°F (10.2°C)	-0.6°F (-0.4°C)	97th Warmest	Warmest since: 1916	2019
	Ties: 1968, 1969
Sep 1912–Aug 1917 60-Month	49.9°F (9.9°C)	50.3°F (10.2°C)	-0.4°F (-0.3°C)	36th Coolest	Coolest since: 1916	1906
	49.9°F (9.9°C)	50.3°F (10.2°C)	-0.4°F (-0.3°C)	88th Warmest	Warmest since: 1914	2020
	Ties: 1914, 1921, 1961, 1965, 1966, 1972, 1983

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published May 2023, retrieved on June 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings