Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 1921

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Record Coolest

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1921 1-Month	35.3°F (1.8°C)	32.4°F (0.2°C)	2.9°F (1.6°C)	93rd Coolest	Coolest since: 1920	1989
	35.3°F (1.8°C)	32.4°F (0.2°C)	2.9°F (1.6°C)	36th Warmest	Warmest since: 1918	2015
	Ties: 1970
Nov–Dec 1921 2-Month	39.8°F (4.3°C)	37.4°F (3.0°C)	2.4°F (1.3°C)	99th Coolest	Coolest since: 1920	1976
Nov–Dec 1921 2-Month	39.8°F (4.3°C)	37.4°F (3.0°C)	2.4°F (1.3°C)	30th Warmest	Warmest since: 1918	2015
Oct–Dec 1921 3-Month	44.3°F (6.8°C)	43.0°F (6.1°C)	1.3°F (0.7°C)	89th Coolest	Coolest since: 1920	1917
	44.3°F (6.8°C)	43.0°F (6.1°C)	1.3°F (0.7°C)	40th Warmest	Warmest since: 1918	2015
	Ties: 1899, 1991
Sep–Dec 1921 4-Month	50.9°F (10.5°C)	48.7°F (9.3°C)	2.2°F (1.2°C)	111th Coolest	Coolest since: 1920	1976
	50.9°F (10.5°C)	48.7°F (9.3°C)	2.2°F (1.2°C)	18th Warmest	Warmest since: 1900	1931
	Ties: 1927, 1973
Aug–Dec 1921 5-Month	54.9°F (12.7°C)	53.4°F (11.9°C)	1.5°F (0.8°C)	109th Coolest	Coolest since: 1920	1976
	54.9°F (12.7°C)	53.4°F (11.9°C)	1.5°F (0.8°C)	20th Warmest	Warmest since: 1900	1931
	Ties: 1956, 1970, 1999, 2005
Jul–Dec 1921 6-Month	58.7°F (14.8°C)	56.8°F (13.8°C)	1.9°F (1.0°C)	116th Coolest	Coolest since: 1920	1976
	58.7°F (14.8°C)	56.8°F (13.8°C)	1.9°F (1.0°C)	13th Warmest	Warmest since: 1900	1931
	Ties: 2001
Jun–Dec 1921 7-Month	60.9°F (16.1°C)	58.7°F (14.8°C)	2.2°F (1.3°C)	120th Coolest	Coolest since: 1920	1976
Jun–Dec 1921 7-Month	60.9°F (16.1°C)	58.7°F (14.8°C)	2.2°F (1.3°C)	9th Warmest	Warmest since: 1900	1931
May–Dec 1921 8-Month	61.1°F (16.2°C)	59.0°F (15.0°C)	2.1°F (1.2°C)	118th Coolest	Coolest since: 1920	1917
	61.1°F (16.2°C)	59.0°F (15.0°C)	2.1°F (1.2°C)	11th Warmest	Warmest since: 1900	1931
	Ties: 1936
Apr–Dec 1921 9-Month	60.4°F (15.8°C)	58.2°F (14.6°C)	2.2°F (1.2°C)	123rd Coolest	Coolest since: 1920	1917
	60.4°F (15.8°C)	58.2°F (14.6°C)	2.2°F (1.2°C)	6th Warmest	Warmest since: 1900	2015
	Ties: 1900, 2007, 2011, 2021
Mar–Dec 1921 10-Month	59.4°F (15.2°C)	56.5°F (13.6°C)	2.9°F (1.6°C)	127th Coolest	Coolest since: 1920	1917
	59.4°F (15.2°C)	56.5°F (13.6°C)	2.9°F (1.6°C)	2nd Warmest	Warmest to Date	2016
	Ties: 2012
Feb–Dec 1921 11-Month	57.3°F (14.1°C)	54.3°F (12.4°C)	3.0°F (1.7°C)	127th Coolest	Coolest since: 1920	1917
	57.3°F (14.1°C)	54.3°F (12.4°C)	3.0°F (1.7°C)	2nd Warmest	Warmest to Date	2012
	Ties: 2016
Jan–Dec 1921 12-Month	55.3°F (12.9°C)	52.2°F (11.2°C)	3.1°F (1.7°C)	127th Coolest	Coolest since: 1920	1917
	55.3°F (12.9°C)	52.2°F (11.2°C)	3.1°F (1.7°C)	2nd Warmest	Warmest to Date	2012
	Ties: 1998
Jul 1920–Dec 1921 18-Month	55.8°F (13.2°C)	53.7°F (12.1°C)	2.1°F (1.1°C)	123rd Coolest	Coolest since: 1920	1904, 1917
	55.8°F (13.2°C)	53.7°F (12.1°C)	2.1°F (1.1°C)	5th Warmest	Warmest to Date	2012, 2016
	Ties: 2020
Jan 1920–Dec 1921 24-Month	53.2°F (11.8°C)	52.2°F (11.2°C)	1.0°F (0.6°C)	101st Coolest	Coolest since: 1920	1979
	53.2°F (11.8°C)	52.2°F (11.2°C)	1.0°F (0.6°C)	27th Warmest	Warmest to Date	2017
	Ties: 1949, 1955, 1992, 2000
Jan 1919–Dec 1921 36-Month	53.2°F (11.8°C)	52.2°F (11.2°C)	1.0°F (0.6°C)	102nd Coolest	Coolest since: 1920	1980
	53.2°F (11.8°C)	52.2°F (11.2°C)	1.0°F (0.6°C)	25th Warmest	Warmest to Date	2018
	Ties: 2003
Jan 1918–Dec 1921 48-Month	52.9°F (11.6°C)	52.2°F (11.2°C)	0.7°F (0.4°C)	90th Coolest	Coolest since: 1920	1979
	52.9°F (11.6°C)	52.2°F (11.2°C)	0.7°F (0.4°C)	36th Warmest	Warmest to Date	2019
	Ties: 1941, 1991, 2010
Jan 1917–Dec 1921 60-Month	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	46th Coolest	Coolest since: 1920	1980
	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	79th Warmest	Warmest since: 1915	2020
	Ties: 1899, 1913, 1914, 1944, 1951, 1959, 1974

Citing This Page

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