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 2020

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 2020 1-Month	34.6°F (1.4°C)	32.4°F (0.2°C)	2.2°F (1.2°C)	84th Coolest	Coolest since: 2017	1989
December 2020 1-Month	34.6°F (1.4°C)	32.4°F (0.2°C)	2.2°F (1.2°C)	45th Warmest	Warmest since: 2019	2015
Nov–Dec 2020 2-Month	41.0°F (5.0°C)	37.3°F (2.9°C)	3.7°F (2.1°C)	113th Coolest	Coolest since: 2019	1976
Nov–Dec 2020 2-Month	41.0°F (5.0°C)	37.3°F (2.9°C)	3.7°F (2.1°C)	16th Warmest	Warmest since: 2015	2015
Oct–Dec 2020 3-Month	45.6°F (7.6°C)	43.0°F (6.1°C)	2.6°F (1.5°C)	110th Coolest	Coolest since: 2019	1917
Oct–Dec 2020 3-Month	45.6°F (7.6°C)	43.0°F (6.1°C)	2.6°F (1.5°C)	19th Warmest	Warmest since: 2016	2015
Sep–Dec 2020 4-Month	50.6°F (10.3°C)	48.7°F (9.3°C)	1.9°F (1.0°C)	107th Coolest	Coolest since: 2018	1976
	50.6°F (10.3°C)	48.7°F (9.3°C)	1.9°F (1.0°C)	22nd Warmest	Warmest since: 2019	1931
	Ties: 1922, 1956, 1970, 1999
Aug–Dec 2020 5-Month	55.0°F (12.8°C)	53.3°F (11.8°C)	1.7°F (1.0°C)	112th Coolest	Coolest since: 2017	1976
	55.0°F (12.8°C)	53.3°F (11.8°C)	1.7°F (1.0°C)	17th Warmest	Warmest since: 2019	1931
	Ties: 1936, 1990
Jul–Dec 2020 6-Month	58.6°F (14.8°C)	56.8°F (13.8°C)	1.8°F (1.0°C)	114th Coolest	Coolest since: 2018	1976
	58.6°F (14.8°C)	56.8°F (13.8°C)	1.8°F (1.0°C)	15th Warmest	Warmest since: 2019	1931
	Ties: 1999
Jun–Dec 2020 7-Month	60.4°F (15.8°C)	58.7°F (14.8°C)	1.7°F (1.0°C)	115th Coolest	Coolest since: 2019	1976
	60.4°F (15.8°C)	58.7°F (14.8°C)	1.7°F (1.0°C)	14th Warmest	Warmest since: 2019	1931
	Ties: 1999, 2018, 2019
May–Dec 2020 8-Month	60.3°F (15.7°C)	59.1°F (15.1°C)	1.2°F (0.6°C)	101st Coolest	Coolest since: 2017	1917
	60.3°F (15.7°C)	59.1°F (15.1°C)	1.2°F (0.6°C)	28th Warmest	Warmest since: 2019	1931
	Ties: 1949
Apr–Dec 2020 9-Month	59.1°F (15.1°C)	58.2°F (14.6°C)	0.9°F (0.5°C)	89th Coolest	Coolest since: 2014	1917
	59.1°F (15.1°C)	58.2°F (14.6°C)	0.9°F (0.5°C)	40th Warmest	Warmest since: 2019	2015
	Ties: 1908, 1938, 1939, 1994, 2022
Mar–Dec 2020 10-Month	57.9°F (14.4°C)	56.5°F (13.6°C)	1.4°F (0.8°C)	111th Coolest	Coolest since: 2018	1917
	57.9°F (14.4°C)	56.5°F (13.6°C)	1.4°F (0.8°C)	18th Warmest	Warmest since: 2019	2016
	Ties: 1938, 1973, 1987, 2001
Feb–Dec 2020 11-Month	55.9°F (13.3°C)	54.3°F (12.4°C)	1.6°F (0.9°C)	113th Coolest	Coolest since: 2015	1917
	55.9°F (13.3°C)	54.3°F (12.4°C)	1.6°F (0.9°C)	16th Warmest	Warmest since: 2019	2012
	Ties: 2001, 2007
Jan–Dec 2020 12-Month	54.2°F (12.3°C)	52.1°F (11.2°C)	2.1°F (1.1°C)	120th Coolest	Coolest since: 2019	1917
	54.2°F (12.3°C)	52.1°F (11.2°C)	2.1°F (1.1°C)	9th Warmest	Warmest since: 2017	2012
	Ties: 2021
Jul 2019–Dec 2020 18-Month	55.8°F (13.2°C)	53.8°F (12.1°C)	2.0°F (1.1°C)	123rd Coolest	Coolest since: 2019	1904, 1917
	55.8°F (13.2°C)	53.8°F (12.1°C)	2.0°F (1.1°C)	5th Warmest	Warmest since: 2017	2012, 2016
	Ties: 1921
Jan 2019–Dec 2020 24-Month	54.1°F (12.3°C)	52.2°F (11.2°C)	1.9°F (1.1°C)	120th Coolest	Coolest since: 2019	1979
	54.1°F (12.3°C)	52.2°F (11.2°C)	1.9°F (1.1°C)	8th Warmest	Warmest since: 2018	2017
	Ties: 2007, 2016
Jan 2018–Dec 2020 36-Month	53.9°F (12.2°C)	52.1°F (11.2°C)	1.8°F (1.0°C)	121st Coolest	Coolest since: 2016	1980
	53.9°F (12.2°C)	52.1°F (11.2°C)	1.8°F (1.0°C)	6th Warmest	Warmest since: 2019	2018
	Ties: 1933, 2000, 2007, 2013, 2022
Jan 2017–Dec 2020 48-Month	54.1°F (12.3°C)	52.1°F (11.2°C)	2.0°F (1.1°C)	123rd Coolest	Coolest since: 2017	1979
Jan 2017–Dec 2020 48-Month	54.1°F (12.3°C)	52.1°F (11.2°C)	2.0°F (1.1°C)	3rd Warmest	Warmest since: 2019	2019
Jan 2016–Dec 2020 60-Month	54.3°F (12.4°C)	52.2°F (11.2°C)	2.1°F (1.2°C)	124th Coolest	Coolest since: 2019	1980
Jan 2016–Dec 2020 60-Month	54.3°F (12.4°C)	52.2°F (11.2°C)	2.1°F (1.2°C)	1st Warmest	Warmest to Date	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published February 2023, retrieved on February 9, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings