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 3. West

Average Temperature Rankings, December 1917

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1917 1-Month	19.6°F (-6.9°C)	28.3°F (-2.1°C)	-8.7°F (-4.8°C)	7th Coolest	Coolest since: 1909	1983
December 1917 1-Month	19.6°F (-6.9°C)	28.3°F (-2.1°C)	-8.7°F (-4.8°C)	122nd Warmest	Warmest since: 1916	2015
Nov–Dec 1917 2-Month	30.6°F (-0.8°C)	34.3°F (1.3°C)	-3.7°F (-2.1°C)	17th Coolest	Coolest since: 1910	2000
Nov–Dec 1917 2-Month	30.6°F (-0.8°C)	34.3°F (1.3°C)	-3.7°F (-2.1°C)	112th Warmest	Warmest since: 1916	1931
Oct–Dec 1917 3-Month	35.4°F (1.9°C)	41.0°F (5.0°C)	-5.6°F (-3.1°C)	3rd Coolest	Coolest to Date	1976
Oct–Dec 1917 3-Month	35.4°F (1.9°C)	41.0°F (5.0°C)	-5.6°F (-3.1°C)	126th Warmest	Warmest since: 1916	1931
Sep–Dec 1917 4-Month	42.6°F (5.9°C)	47.3°F (8.5°C)	-4.7°F (-2.6°C)	2nd Coolest	Coolest to Date	1976
Sep–Dec 1917 4-Month	42.6°F (5.9°C)	47.3°F (8.5°C)	-4.7°F (-2.6°C)	127th Warmest	Warmest since: 1916	1931
Aug–Dec 1917 5-Month	48.4°F (9.1°C)	52.5°F (11.4°C)	-4.1°F (-2.3°C)	2nd Coolest	Coolest to Date	1976
Aug–Dec 1917 5-Month	48.4°F (9.1°C)	52.5°F (11.4°C)	-4.1°F (-2.3°C)	127th Warmest	Warmest since: 1916	1931
Jul–Dec 1917 6-Month	53.0°F (11.7°C)	56.5°F (13.6°C)	-3.5°F (-1.9°C)	2nd Coolest	Coolest to Date	1976
Jul–Dec 1917 6-Month	53.0°F (11.7°C)	56.5°F (13.6°C)	-3.5°F (-1.9°C)	127th Warmest	Warmest since: 1916	1931
Jun–Dec 1917 7-Month	55.1°F (12.8°C)	58.6°F (14.8°C)	-3.5°F (-2.0°C)	2nd Coolest	Coolest to Date	1976
Jun–Dec 1917 7-Month	55.1°F (12.8°C)	58.6°F (14.8°C)	-3.5°F (-2.0°C)	127th Warmest	Warmest since: 1916	1931
May–Dec 1917 8-Month	55.3°F (12.9°C)	59.1°F (15.1°C)	-3.8°F (-2.2°C)	1st Coolest	Coolest to Date	1917
May–Dec 1917 8-Month	55.3°F (12.9°C)	59.1°F (15.1°C)	-3.8°F (-2.2°C)	128th Warmest	Warmest since: 1916	1931
Apr–Dec 1917 9-Month	54.4°F (12.4°C)	58.2°F (14.6°C)	-3.8°F (-2.2°C)	1st Coolest	Coolest to Date	1917
Apr–Dec 1917 9-Month	54.4°F (12.4°C)	58.2°F (14.6°C)	-3.8°F (-2.2°C)	128th Warmest	Warmest since: 1916	1931
Mar–Dec 1917 10-Month	52.9°F (11.6°C)	56.3°F (13.5°C)	-3.4°F (-1.9°C)	1st Coolest	Coolest to Date	1917
Mar–Dec 1917 10-Month	52.9°F (11.6°C)	56.3°F (13.5°C)	-3.4°F (-1.9°C)	128th Warmest	Warmest since: 1916	2012
Feb–Dec 1917 11-Month	50.1°F (10.1°C)	53.7°F (12.1°C)	-3.6°F (-2.0°C)	1st Coolest	Coolest to Date	1917
Feb–Dec 1917 11-Month	50.1°F (10.1°C)	53.7°F (12.1°C)	-3.6°F (-2.0°C)	128th Warmest	Warmest since: 1916	2012
Jan–Dec 1917 12-Month	48.0°F (8.9°C)	51.2°F (10.7°C)	-3.2°F (-1.8°C)	1st Coolest	Coolest to Date	1917
Jan–Dec 1917 12-Month	48.0°F (8.9°C)	51.2°F (10.7°C)	-3.2°F (-1.8°C)	128th Warmest	Warmest since: 1916	2012
Jul 1916–Dec 1917 18-Month	51.1°F (10.6°C)	53.0°F (11.7°C)	-1.9°F (-1.1°C)	4th Coolest	Coolest since: 1904	1904
	51.1°F (10.6°C)	53.0°F (11.7°C)	-1.9°F (-1.1°C)	124th Warmest	Warmest since: 1916	2012
	Ties: 1978
Jan 1916–Dec 1917 24-Month	49.4°F (9.7°C)	51.2°F (10.7°C)	-1.8°F (-1.0°C)	4th Coolest	Coolest since: 1905	1979
	49.4°F (9.7°C)	51.2°F (10.7°C)	-1.8°F (-1.0°C)	124th Warmest	Warmest since: 1916	2017
	Ties: 1951, 2014
Jan 1915–Dec 1917 36-Month	49.8°F (9.9°C)	51.2°F (10.7°C)	-1.4°F (-0.8°C)	5th Coolest	Coolest since: 1906	1905
	49.8°F (9.9°C)	51.2°F (10.7°C)	-1.4°F (-0.8°C)	122nd Warmest	Warmest since: 1916	2017
	Ties: 1906
Jan 1914–Dec 1917 48-Month	50.3°F (10.2°C)	51.2°F (10.7°C)	-0.9°F (-0.5°C)	10th Coolest	Coolest since: 1907	1905
	50.3°F (10.2°C)	51.2°F (10.7°C)	-0.9°F (-0.5°C)	116th Warmest	Warmest since: 1916	1934
	Ties: 1961, 1970, 1996
Jan 1913–Dec 1917 60-Month	50.8°F (10.4°C)	51.2°F (10.7°C)	-0.4°F (-0.3°C)	29th Coolest	Coolest since: 1909	1905
	50.8°F (10.4°C)	51.2°F (10.7°C)	-0.4°F (-0.3°C)	96th Warmest	Warmest since: 1916	1934
	Ties: 1899, 1909, 1929, 1964, 1968, 1973

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 25, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings