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, June 1998

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
June 1998 1-Month	75.2°F (24.0°C)	73.9°F (23.3°C)	1.3°F (0.7°C)	87th Coolest	Coolest since: 1997	1903
	75.2°F (24.0°C)	73.9°F (23.3°C)	1.3°F (0.7°C)	42nd Warmest	Warmest since: 1994	1952
	Ties: 1964, 1981, 1988
May–Jun 1998 2-Month	72.6°F (22.6°C)	69.4°F (20.8°C)	3.2°F (1.8°C)	115th Coolest	Coolest since: 1997	1907
May–Jun 1998 2-Month	72.6°F (22.6°C)	69.4°F (20.8°C)	3.2°F (1.8°C)	14th Warmest	Warmest since: 1991	2018
Apr–Jun 1998 3-Month	66.9°F (19.4°C)	64.8°F (18.2°C)	2.1°F (1.2°C)	111th Coolest	Coolest since: 1997	1907
	66.9°F (19.4°C)	64.8°F (18.2°C)	2.1°F (1.2°C)	18th Warmest	Warmest since: 1991	2010
	Ties: 1952, 2006, 2018
Mar–Jun 1998 4-Month	61.3°F (16.3°C)	59.7°F (15.4°C)	1.6°F (0.9°C)	101st Coolest	Coolest since: 1997	1960
	61.3°F (16.3°C)	59.7°F (15.4°C)	1.6°F (0.9°C)	28th Warmest	Warmest since: 1991	2012
	Ties: 1934, 1936
Feb–Jun 1998 5-Month	57.6°F (14.2°C)	54.7°F (12.6°C)	2.9°F (1.6°C)	118th Coolest	Coolest since: 1997	1912, 1960, 1978
	57.6°F (14.2°C)	54.7°F (12.6°C)	2.9°F (1.6°C)	11th Warmest	Warmest since: 1991	2012
	Ties: 2000
Jan–Jun 1998 6-Month	54.2°F (12.3°C)	50.8°F (10.4°C)	3.4°F (1.9°C)	125th Coolest	Coolest since: 1997	1912, 1978
Jan–Jun 1998 6-Month	54.2°F (12.3°C)	50.8°F (10.4°C)	3.4°F (1.9°C)	4th Warmest	Warmest since: 1921	2012
Dec 1997–Jun 1998 7-Month	51.6°F (10.9°C)	48.5°F (9.2°C)	3.1°F (1.7°C)	122nd Coolest	Coolest since: 1997	1978
Dec 1997–Jun 1998 7-Month	51.6°F (10.9°C)	48.5°F (9.2°C)	3.1°F (1.7°C)	6th Warmest	Warmest since: 1932	2012
Nov 1997–Jun 1998 8-Month	50.4°F (10.2°C)	48.0°F (8.9°C)	2.4°F (1.3°C)	116th Coolest	Coolest since: 1997	1912
	50.4°F (10.2°C)	48.0°F (8.9°C)	2.4°F (1.3°C)	12th Warmest	Warmest since: 1991	2012
	Ties: 2005
Oct 1997–Jun 1998 9-Month	51.2°F (10.7°C)	49.1°F (9.5°C)	2.1°F (1.2°C)	115th Coolest	Coolest since: 1997	1912, 1978
Oct 1997–Jun 1998 9-Month	51.2°F (10.7°C)	49.1°F (9.5°C)	2.1°F (1.2°C)	13th Warmest	Warmest since: 1991	2012
Sep 1997–Jun 1998 10-Month	52.9°F (11.6°C)	51.1°F (10.6°C)	1.8°F (1.0°C)	114th Coolest	Coolest since: 1997	1978
	52.9°F (11.6°C)	51.1°F (10.6°C)	1.8°F (1.0°C)	14th Warmest	Warmest since: 1991	2012
	Ties: 1934, 1939, 1972
Aug 1997–Jun 1998 11-Month	54.8°F (12.7°C)	53.3°F (11.8°C)	1.5°F (0.9°C)	109th Coolest	Coolest since: 1997	1904, 1978
	54.8°F (12.7°C)	53.3°F (11.8°C)	1.5°F (0.9°C)	19th Warmest	Warmest since: 1991	2012
	Ties: 1955, 1972
Jul 1997–Jun 1998 12-Month	56.7°F (13.7°C)	55.3°F (12.9°C)	1.4°F (0.8°C)	107th Coolest	Coolest since: 1997	1904, 1912, 1918, 1978
	56.7°F (13.7°C)	55.3°F (12.9°C)	1.4°F (0.8°C)	21st Warmest	Warmest since: 1991	2012
	Ties: 1914, 1953, 2007
Jan 1997–Jun 1998 18-Month	54.5°F (12.5°C)	53.9°F (12.2°C)	0.6°F (0.3°C)	89th Coolest	Coolest since: 1997	1979
	54.5°F (12.5°C)	53.9°F (12.2°C)	0.6°F (0.3°C)	39th Warmest	Warmest since: 1992	2017
	Ties: 1923, 1946, 1956
Jul 1996–Jun 1998 24-Month	55.4°F (13.0°C)	55.3°F (12.9°C)	0.1°F (0.1°C)	58th Coolest	Coolest since: 1997	1978, 1979
	55.4°F (13.0°C)	55.3°F (12.9°C)	0.1°F (0.1°C)	69th Warmest	Warmest since: 1995	2017
	Ties: 1910, 1911, 1937, 1945
Jul 1995–Jun 1998 36-Month	55.2°F (12.9°C)	55.3°F (12.9°C)	-0.1°F (0.0°C)	43rd Coolest	Coolest since: 1997	1979
	55.2°F (12.9°C)	55.3°F (12.9°C)	-0.1°F (0.0°C)	83rd Warmest	Warmest since: 1996	2018
	Ties: 1902, 1903, 1953, 1959, 1965, 1983, 1994, 1996
Jul 1994–Jun 1998 48-Month	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1997	1980
	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	71st Warmest	Warmest since: 1995	2019
	Ties: 1953, 1959, 1986, 1995
Jul 1993–Jun 1998 60-Month	55.3°F (12.9°C)	55.3°F (12.9°C)	0.0°F (0.0°C)	50th Coolest	Coolest since: 1997	1980
	55.3°F (12.9°C)	55.3°F (12.9°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1996	2020
	Ties: 1917, 1927, 1952, 1967, 1996

Citing This Page

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