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, May 1989

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1989 1-Month	62.2°F (16.8°C)	65.1°F (18.4°C)	-2.9°F (-1.6°C)	23rd Coolest	Coolest since: 1984	1917, 1924
	62.2°F (16.8°C)	65.1°F (18.4°C)	-2.9°F (-1.6°C)	106th Warmest	Warmest since: 1988	2018
	Ties: 1940
Apr–May 1989 2-Month	59.0°F (15.0°C)	60.1°F (15.6°C)	-1.1°F (-0.6°C)	34th Coolest	Coolest since: 1984	1907
	59.0°F (15.0°C)	60.1°F (15.6°C)	-1.1°F (-0.6°C)	95th Warmest	Warmest since: 1988	1896
	Ties: 1919
Mar–May 1989 3-Month	54.3°F (12.4°C)	55.0°F (12.8°C)	-0.7°F (-0.4°C)	45th Coolest	Coolest since: 1984	1960
Mar–May 1989 3-Month	54.3°F (12.4°C)	55.0°F (12.8°C)	-0.7°F (-0.4°C)	84th Warmest	Warmest since: 1988	2012
Feb–May 1989 4-Month	48.1°F (8.9°C)	50.0°F (10.0°C)	-1.9°F (-1.1°C)	21st Coolest	Coolest since: 1980	1978
Feb–May 1989 4-Month	48.1°F (8.9°C)	50.0°F (10.0°C)	-1.9°F (-1.1°C)	108th Warmest	Warmest since: 1988	2012
Jan–May 1989 5-Month	46.4°F (8.0°C)	46.2°F (7.9°C)	0.2°F (0.1°C)	63rd Coolest	Coolest since: 1988	1978
	46.4°F (8.0°C)	46.2°F (7.9°C)	0.2°F (0.1°C)	66th Warmest	Warmest since: 1987	2012
	Ties: 1931
Dec 1988–May 1989 6-Month	44.7°F (7.1°C)	44.2°F (6.8°C)	0.5°F (0.3°C)	70th Coolest	Coolest since: 1988	1978
	44.7°F (7.1°C)	44.2°F (6.8°C)	0.5°F (0.3°C)	58th Warmest	Warmest since: 1987	2012
	Ties: 2021
Nov 1988–May 1989 7-Month	44.8°F (7.1°C)	44.3°F (6.8°C)	0.5°F (0.3°C)	73rd Coolest	Coolest since: 1985	1978
	44.8°F (7.1°C)	44.3°F (6.8°C)	0.5°F (0.3°C)	55th Warmest	Warmest since: 1988	2012
	Ties: 1933, 1965, 1981
Oct 1988–May 1989 8-Month	45.7°F (7.6°C)	46.0°F (7.8°C)	-0.3°F (-0.2°C)	45th Coolest	Coolest since: 1984	1978
	45.7°F (7.6°C)	46.0°F (7.8°C)	-0.3°F (-0.2°C)	83rd Warmest	Warmest since: 1988	2012
	Ties: 1913, 1962
Sep 1988–May 1989 9-Month	48.3°F (9.1°C)	48.5°F (9.2°C)	-0.2°F (-0.1°C)	44th Coolest	Coolest since: 1984	1978
	48.3°F (9.1°C)	48.5°F (9.2°C)	-0.2°F (-0.1°C)	84th Warmest	Warmest since: 1988	2012
	Ties: 1900
Aug 1988–May 1989 10-Month	51.4°F (10.8°C)	51.3°F (10.7°C)	0.1°F (0.1°C)	58th Coolest	Coolest since: 1988	1978
	51.4°F (10.8°C)	51.3°F (10.7°C)	0.1°F (0.1°C)	70th Warmest	Warmest since: 1988	2012
	Ties: 1907, 1988, 2009, 2010
Jul 1988–May 1989 11-Month	53.9°F (12.2°C)	53.7°F (12.1°C)	0.2°F (0.1°C)	61st Coolest	Coolest since: 1988	1918
	53.9°F (12.2°C)	53.7°F (12.1°C)	0.2°F (0.1°C)	67th Warmest	Warmest since: 1988	2012
	Ties: 1903, 1911, 1988, 1990, 2003
Jun 1988–May 1989 12-Month	55.7°F (13.2°C)	55.4°F (13.0°C)	0.3°F (0.2°C)	71st Coolest	Coolest since: 1985	1904, 1918
	55.7°F (13.2°C)	55.4°F (13.0°C)	0.3°F (0.2°C)	57th Warmest	Warmest since: 1988	2012
	Ties: 1925, 1927, 1948, 1985, 2003
Dec 1987–May 1989 18-Month	51.9°F (11.1°C)	51.7°F (10.9°C)	0.2°F (0.2°C)	73rd Coolest	Coolest since: 1985	1979
	51.9°F (11.1°C)	51.7°F (10.9°C)	0.2°F (0.2°C)	54th Warmest	Warmest since: 1988	2017
	Ties: 1897, 1921, 1946
Jun 1987–May 1989 24-Month	55.7°F (13.2°C)	55.4°F (13.0°C)	0.3°F (0.2°C)	79th Coolest	Coolest since: 1985	1905, 1978
	55.7°F (13.2°C)	55.4°F (13.0°C)	0.3°F (0.2°C)	48th Warmest	Warmest since: 1988	2017
	Ties: 1940, 1949, 1965, 1973, 1975
Jun 1986–May 1989 36-Month	56.1°F (13.4°C)	55.4°F (13.0°C)	0.7°F (0.4°C)	92nd Coolest	Coolest since: 1988	1979
	56.1°F (13.4°C)	55.4°F (13.0°C)	0.7°F (0.4°C)	34th Warmest	Warmest since: 1988	2018
	Ties: 1987, 1988, 1991
Jun 1985–May 1989 48-Month	56.0°F (13.3°C)	55.4°F (13.0°C)	0.6°F (0.3°C)	91st Coolest	Coolest since: 1988	1980
	56.0°F (13.3°C)	55.4°F (13.0°C)	0.6°F (0.3°C)	34th Warmest	Warmest since: 1988	2019
	Ties: 1938, 1939, 1944, 1988, 1991, 2004, 2010, 2011
Jun 1984–May 1989 60-Month	55.9°F (13.3°C)	55.3°F (12.9°C)	0.6°F (0.4°C)	82nd Coolest	Coolest since: 1988	1979, 1980, 1981
	55.9°F (13.3°C)	55.3°F (12.9°C)	0.6°F (0.4°C)	42nd Warmest	Warmest since: 1958	2020
	Ties: 1945, 1946, 1990, 1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published November 2022, retrieved on December 1, 2022 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings