Statewide 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

Average Temperature Rankings, July 1917

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
July 1917 1-Month	74.6°F (23.7°C)	75.6°F (24.2°C)	-1.0°F (-0.5°C)	45th Coolest	Coolest since: 1915	2009, 2014
	74.6°F (23.7°C)	75.6°F (24.2°C)	-1.0°F (-0.5°C)	84th Warmest	Warmest since: 1916	1936
	Ties: 1900, 2021
Jun–Jul 1917 2-Month	71.3°F (21.8°C)	73.5°F (23.1°C)	-2.2°F (-1.3°C)	13th Coolest	Coolest since: 1915	1915, 1958
Jun–Jul 1917 2-Month	71.3°F (21.8°C)	73.5°F (23.1°C)	-2.2°F (-1.3°C)	116th Warmest	Warmest since: 1916	1934
May–Jul 1917 3-Month	66.1°F (18.9°C)	69.7°F (20.9°C)	-3.6°F (-2.0°C)	3rd Coolest	Coolest to Date	1924
May–Jul 1917 3-Month	66.1°F (18.9°C)	69.7°F (20.9°C)	-3.6°F (-2.0°C)	126th Warmest	Warmest since: 1916	1934
Apr–Jul 1917 4-Month	61.8°F (16.6°C)	65.2°F (18.4°C)	-3.4°F (-1.8°C)	2nd Coolest	Coolest since: 1907	1907
Apr–Jul 1917 4-Month	61.8°F (16.6°C)	65.2°F (18.4°C)	-3.4°F (-1.8°C)	127th Warmest	Warmest since: 1916	1934
Mar–Jul 1917 5-Month	57.5°F (14.2°C)	60.1°F (15.6°C)	-2.6°F (-1.4°C)	6th Coolest	Coolest since: 1904	1960
	57.5°F (14.2°C)	60.1°F (15.6°C)	-2.6°F (-1.4°C)	123rd Warmest	Warmest since: 1916	2012
	Ties: 1950
Feb–Jul 1917 6-Month	51.8°F (11.0°C)	55.0°F (12.8°C)	-3.2°F (-1.8°C)	4th Coolest	Coolest since: 1904	1947
Feb–Jul 1917 6-Month	51.8°F (11.0°C)	55.0°F (12.8°C)	-3.2°F (-1.8°C)	125th Warmest	Warmest since: 1916	2012
Jan–Jul 1917 7-Month	48.2°F (9.0°C)	50.7°F (10.4°C)	-2.5°F (-1.4°C)	11th Coolest	Coolest since: 1912	1912
	48.2°F (9.0°C)	50.7°F (10.4°C)	-2.5°F (-1.4°C)	118th Warmest	Warmest since: 1916	2012
	Ties: 1982
Dec 1916–Jul 1917 8-Month	45.5°F (7.5°C)	48.1°F (8.9°C)	-2.6°F (-1.4°C)	7th Coolest	Coolest since: 1912	1904
	45.5°F (7.5°C)	48.1°F (8.9°C)	-2.6°F (-1.4°C)	121st Warmest	Warmest since: 1916	2012
	Ties: 1918
Nov 1916–Jul 1917 9-Month	45.1°F (7.3°C)	47.2°F (8.4°C)	-2.1°F (-1.1°C)	9th Coolest	Coolest since: 1912	1904
	45.1°F (7.3°C)	47.2°F (8.4°C)	-2.1°F (-1.1°C)	119th Warmest	Warmest since: 1916	2012
	Ties: 1918, 1960
Oct 1916–Jul 1917 10-Month	46.0°F (7.8°C)	48.0°F (8.9°C)	-2.0°F (-1.1°C)	11th Coolest	Coolest since: 1912	1904
Oct 1916–Jul 1917 10-Month	46.0°F (7.8°C)	48.0°F (8.9°C)	-2.0°F (-1.1°C)	117th Warmest	Warmest since: 1916	2012
Sep 1916–Jul 1917 11-Month	47.7°F (8.7°C)	49.7°F (9.8°C)	-2.0°F (-1.1°C)	8th Coolest	Coolest since: 1912	1904
Sep 1916–Jul 1917 11-Month	47.7°F (8.7°C)	49.7°F (9.8°C)	-2.0°F (-1.1°C)	120th Warmest	Warmest since: 1916	2012
Aug 1916–Jul 1917 12-Month	50.0°F (10.0°C)	51.6°F (10.9°C)	-1.6°F (-0.9°C)	12th Coolest	Coolest since: 1912	1904
	50.0°F (10.0°C)	51.6°F (10.9°C)	-1.6°F (-0.9°C)	116th Warmest	Warmest since: 1916	2012
	Ties: 1920
Feb 1916–Jul 1917 18-Month	51.2°F (10.7°C)	52.7°F (11.5°C)	-1.5°F (-0.8°C)	7th Coolest	Coolest since: 1905	1918
	51.2°F (10.7°C)	52.7°F (11.5°C)	-1.5°F (-0.8°C)	121st Warmest	Warmest since: 1916	2012
	Ties: 1924
Aug 1915–Jul 1917 24-Month	50.6°F (10.3°C)	51.6°F (10.9°C)	-1.0°F (-0.6°C)	13th Coolest	Coolest since: 1913	1905
	50.6°F (10.3°C)	51.6°F (10.9°C)	-1.0°F (-0.6°C)	114th Warmest	Warmest since: 1916	2017
	Ties: 1912, 1969, 1970, 2014
Aug 1914–Jul 1917 36-Month	50.7°F (10.4°C)	51.6°F (10.9°C)	-0.9°F (-0.5°C)	9th Coolest	Coolest since: 1912	1979
	50.7°F (10.4°C)	51.6°F (10.9°C)	-0.9°F (-0.5°C)	117th Warmest	Warmest since: 1916	2018
	Ties: 1907, 1912, 1919, 1920, 1960, 2015
Aug 1913–Jul 1917 48-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	35th Coolest	Coolest since: 1915	1905, 1980
	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	90th Warmest	Warmest since: 1916	2019
	Ties: 1930, 1965
Aug 1912–Jul 1917 60-Month	51.4°F (10.8°C)	51.6°F (10.9°C)	-0.2°F (-0.1°C)	41st Coolest	Coolest since: 1916	1906
	51.4°F (10.8°C)	51.6°F (10.9°C)	-0.2°F (-0.1°C)	83rd Warmest	Warmest since: 1915	2020
	Ties: 1915, 1921, 1926, 1951, 1966, 1967, 1984

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings