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, April 1979

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
April 1979 1-Month	48.5°F (9.2°C)	51.3°F (10.7°C)	-2.8°F (-1.5°C)	21st Coolest	Coolest since: 1975	2018
	48.5°F (9.2°C)	51.3°F (10.7°C)	-2.8°F (-1.5°C)	108th Warmest	Warmest since: 1978	2010
	Ties: 1966
Mar–Apr 1979 2-Month	43.6°F (6.4°C)	45.2°F (7.3°C)	-1.6°F (-0.9°C)	37th Coolest	Coolest since: 1978	1960
	43.6°F (6.4°C)	45.2°F (7.3°C)	-1.6°F (-0.9°C)	92nd Warmest	Warmest since: 1977	2012
	Ties: 1901, 1931
Feb–Apr 1979 3-Month	34.5°F (1.4°C)	39.5°F (4.2°C)	-5.0°F (-2.8°C)	6th Coolest	Coolest since: 1978	1899
	34.5°F (1.4°C)	39.5°F (4.2°C)	-5.0°F (-2.8°C)	123rd Warmest	Warmest since: 1977	2012
	Ties: 1904
Jan–Apr 1979 4-Month	28.4°F (-2.0°C)	35.6°F (2.0°C)	-7.2°F (-4.0°C)	2nd Coolest	Coolest since: 1912	1912
Jan–Apr 1979 4-Month	28.4°F (-2.0°C)	35.6°F (2.0°C)	-7.2°F (-4.0°C)	127th Warmest	Warmest since: 1978	2012
Dec 1978–Apr 1979 5-Month	28.2°F (-2.1°C)	34.2°F (1.2°C)	-6.0°F (-3.3°C)	2nd Coolest	Coolest since: 1978	1978
Dec 1978–Apr 1979 5-Month	28.2°F (-2.1°C)	34.2°F (1.2°C)	-6.0°F (-3.3°C)	126th Warmest	Warmest since: 1977	2012
Nov 1978–Apr 1979 6-Month	30.4°F (-0.9°C)	35.1°F (1.7°C)	-4.7°F (-2.6°C)	6th Coolest	Coolest since: 1978	1904, 1912, 1978
Nov 1978–Apr 1979 6-Month	30.4°F (-0.9°C)	35.1°F (1.7°C)	-4.7°F (-2.6°C)	122nd Warmest	Warmest since: 1977	2012
Oct 1978–Apr 1979 7-Month	33.6°F (0.9°C)	38.0°F (3.3°C)	-4.4°F (-2.4°C)	6th Coolest	Coolest since: 1978	1912
Oct 1978–Apr 1979 7-Month	33.6°F (0.9°C)	38.0°F (3.3°C)	-4.4°F (-2.4°C)	122nd Warmest	Warmest since: 1977	2012
Sep 1978–Apr 1979 8-Month	38.1°F (3.4°C)	41.4°F (5.2°C)	-3.3°F (-1.8°C)	8th Coolest	Coolest since: 1978	1904, 1978
Sep 1978–Apr 1979 8-Month	38.1°F (3.4°C)	41.4°F (5.2°C)	-3.3°F (-1.8°C)	120th Warmest	Warmest since: 1977	2017
Aug 1978–Apr 1979 9-Month	42.0°F (5.6°C)	45.1°F (7.3°C)	-3.1°F (-1.7°C)	8th Coolest	Coolest since: 1978	1978
	42.0°F (5.6°C)	45.1°F (7.3°C)	-3.1°F (-1.7°C)	120th Warmest	Warmest since: 1977	2017
	Ties: 1977
Jul 1978–Apr 1979 10-Month	45.3°F (7.4°C)	48.2°F (9.0°C)	-2.9°F (-1.6°C)	7th Coolest	Coolest since: 1978	1904
Jul 1978–Apr 1979 10-Month	45.3°F (7.4°C)	48.2°F (9.0°C)	-2.9°F (-1.6°C)	121st Warmest	Warmest since: 1977	2012
Jun 1978–Apr 1979 11-Month	47.7°F (8.7°C)	50.3°F (10.2°C)	-2.6°F (-1.5°C)	7th Coolest	Coolest since: 1978	1904
	47.7°F (8.7°C)	50.3°F (10.2°C)	-2.6°F (-1.5°C)	121st Warmest	Warmest since: 1977	2017
	Ties: 1977
May 1978–Apr 1979 12-Month	48.8°F (9.3°C)	51.3°F (10.7°C)	-2.5°F (-1.4°C)	6th Coolest	Coolest since: 1977	1918
	48.8°F (9.3°C)	51.3°F (10.7°C)	-2.5°F (-1.4°C)	122nd Warmest	Warmest since: 1978	2017
	Ties: 1899
Nov 1977–Apr 1979 18-Month	42.5°F (5.8°C)	45.9°F (7.7°C)	-3.4°F (-1.9°C)	1st Coolest	Coolest since: 1979	1979
Nov 1977–Apr 1979 18-Month	42.5°F (5.8°C)	45.9°F (7.7°C)	-3.4°F (-1.9°C)	126th Warmest	Warmest since: 1978	2017
May 1977–Apr 1979 24-Month	48.9°F (9.4°C)	51.3°F (10.7°C)	-2.4°F (-1.3°C)	3rd Coolest	Coolest since: 1978	1905
May 1977–Apr 1979 24-Month	48.9°F (9.4°C)	51.3°F (10.7°C)	-2.4°F (-1.3°C)	124th Warmest	Warmest since: 1977	2017
May 1976–Apr 1979 36-Month	48.8°F (9.3°C)	51.2°F (10.7°C)	-2.4°F (-1.4°C)	1st Coolest	Coolest since: 1979	1979
May 1976–Apr 1979 36-Month	48.8°F (9.3°C)	51.2°F (10.7°C)	-2.4°F (-1.4°C)	125th Warmest	Warmest since: 1978	2018
May 1975–Apr 1979 48-Month	49.9°F (9.9°C)	51.2°F (10.7°C)	-1.3°F (-0.8°C)	5th Coolest	Coolest since: 1907	1980
May 1975–Apr 1979 48-Month	49.9°F (9.9°C)	51.2°F (10.7°C)	-1.3°F (-0.8°C)	120th Warmest	Warmest since: 1978	1935
May 1974–Apr 1979 60-Month	49.9°F (9.9°C)	51.2°F (10.7°C)	-1.3°F (-0.8°C)	1st Coolest	Coolest since: 1906	1906, 1979
	49.9°F (9.9°C)	51.2°F (10.7°C)	-1.3°F (-0.8°C)	123rd Warmest	Warmest since: 1978	1935
	Ties: 1906

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on January 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings