Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Ohio River Basin

Average Temperature Rankings, December 1989

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1989 1-Month	20.6°F (-6.3°C)	32.4°F (0.2°C)	-11.8°F (-6.5°C)	1st Coolest	Coolest since: 1989	1989
December 1989 1-Month	20.6°F (-6.3°C)	32.4°F (0.2°C)	-11.8°F (-6.5°C)	128th Warmest	Warmest since: 1988	2015
Nov–Dec 1989 2-Month	31.4°F (-0.3°C)	37.4°F (3.0°C)	-6.0°F (-3.3°C)	3rd Coolest	Coolest since: 1976	1976
	31.4°F (-0.3°C)	37.4°F (3.0°C)	-6.0°F (-3.3°C)	126th Warmest	Warmest since: 1988	2015
	Ties: 1903
Oct–Dec 1989 3-Month	39.0°F (3.9°C)	42.9°F (6.1°C)	-3.9°F (-2.2°C)	5th Coolest	Coolest since: 1976	1917
Oct–Dec 1989 3-Month	39.0°F (3.9°C)	42.9°F (6.1°C)	-3.9°F (-2.2°C)	124th Warmest	Warmest since: 1988	2015
Sep–Dec 1989 4-Month	45.3°F (7.4°C)	48.7°F (9.3°C)	-3.4°F (-1.9°C)	3rd Coolest	Coolest since: 1976	1976
Sep–Dec 1989 4-Month	45.3°F (7.4°C)	48.7°F (9.3°C)	-3.4°F (-1.9°C)	126th Warmest	Warmest since: 1988	1931
Aug–Dec 1989 5-Month	50.5°F (10.3°C)	53.3°F (11.8°C)	-2.8°F (-1.5°C)	3rd Coolest	Coolest since: 1976	1976
Aug–Dec 1989 5-Month	50.5°F (10.3°C)	53.3°F (11.8°C)	-2.8°F (-1.5°C)	126th Warmest	Warmest since: 1988	1931
Jul–Dec 1989 6-Month	54.4°F (12.4°C)	56.8°F (13.8°C)	-2.4°F (-1.4°C)	4th Coolest	Coolest since: 1976	1976
Jul–Dec 1989 6-Month	54.4°F (12.4°C)	56.8°F (13.8°C)	-2.4°F (-1.4°C)	125th Warmest	Warmest since: 1988	1931
Jun–Dec 1989 7-Month	56.6°F (13.7°C)	58.7°F (14.8°C)	-2.1°F (-1.1°C)	5th Coolest	Coolest since: 1976	1976
Jun–Dec 1989 7-Month	56.6°F (13.7°C)	58.7°F (14.8°C)	-2.1°F (-1.1°C)	124th Warmest	Warmest since: 1988	1931
May–Dec 1989 8-Month	56.8°F (13.8°C)	59.1°F (15.1°C)	-2.3°F (-1.3°C)	3rd Coolest	Coolest since: 1976	1917
May–Dec 1989 8-Month	56.8°F (13.8°C)	59.1°F (15.1°C)	-2.3°F (-1.3°C)	126th Warmest	Warmest since: 1988	1931
Apr–Dec 1989 9-Month	56.1°F (13.4°C)	58.2°F (14.6°C)	-2.1°F (-1.2°C)	5th Coolest	Coolest since: 1976	1917
Apr–Dec 1989 9-Month	56.1°F (13.4°C)	58.2°F (14.6°C)	-2.1°F (-1.2°C)	124th Warmest	Warmest since: 1988	2015
Mar–Dec 1989 10-Month	54.8°F (12.7°C)	56.5°F (13.6°C)	-1.7°F (-0.9°C)	6th Coolest	Coolest since: 1976	1917
Mar–Dec 1989 10-Month	54.8°F (12.7°C)	56.5°F (13.6°C)	-1.7°F (-0.9°C)	123rd Warmest	Warmest since: 1988	2016
Feb–Dec 1989 11-Month	52.5°F (11.4°C)	54.3°F (12.4°C)	-1.8°F (-1.0°C)	6th Coolest	Coolest since: 1960	1917
Feb–Dec 1989 11-Month	52.5°F (11.4°C)	54.3°F (12.4°C)	-1.8°F (-1.0°C)	123rd Warmest	Warmest since: 1988	2012
Jan–Dec 1989 12-Month	51.2°F (10.7°C)	52.2°F (11.2°C)	-1.0°F (-0.5°C)	20th Coolest	Coolest since: 1981	1917
	51.2°F (10.7°C)	52.2°F (11.2°C)	-1.0°F (-0.5°C)	109th Warmest	Warmest since: 1988	2012
	Ties: 1901, 1907, 1950, 1981, 1996
Jul 1988–Dec 1989 18-Month	53.0°F (11.7°C)	53.7°F (12.1°C)	-0.7°F (-0.4°C)	23rd Coolest	Coolest since: 1980	1904, 1917
	53.0°F (11.7°C)	53.7°F (12.1°C)	-0.7°F (-0.4°C)	105th Warmest	Warmest since: 1988	2012, 2016
	Ties: 1960, 1980
Jan 1988–Dec 1989 24-Month	51.5°F (10.8°C)	52.2°F (11.2°C)	-0.7°F (-0.4°C)	24th Coolest	Coolest since: 1981	1979
	51.5°F (10.8°C)	52.2°F (11.2°C)	-0.7°F (-0.4°C)	104th Warmest	Warmest since: 1988	2017
	Ties: 1902, 1951, 1966, 2014
Jan 1987–Dec 1989 36-Month	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	56th Coolest	Coolest since: 1985	1980
	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	71st Warmest	Warmest since: 1988	2018
	Ties: 1901, 1942, 1945
Jan 1986–Dec 1989 48-Month	52.5°F (11.4°C)	52.2°F (11.2°C)	0.3°F (0.2°C)	70th Coolest	Coolest since: 1986	1979
	52.5°F (11.4°C)	52.2°F (11.2°C)	0.3°F (0.2°C)	56th Warmest	Warmest since: 1988	2019
	Ties: 1911, 1940, 1942, 1948, 1952, 1998
Jan 1985–Dec 1989 60-Month	52.3°F (11.3°C)	52.1°F (11.2°C)	0.2°F (0.1°C)	54th Coolest	Coolest since: 1986	1980
	52.3°F (11.3°C)	52.1°F (11.2°C)	0.2°F (0.1°C)	71st Warmest	Warmest since: 1988	2020
	Ties: 1902, 1911, 1915, 1986

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings