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 1939

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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 1939 1-Month	34.9°F (1.6°C)	32.4°F (0.2°C)	2.5°F (1.4°C)	88th Coolest	Coolest since: 1938	1989
	34.9°F (1.6°C)	32.4°F (0.2°C)	2.5°F (1.4°C)	41st Warmest	Warmest since: 1936	2015
	Ties: 1972
Nov–Dec 1939 2-Month	37.3°F (2.9°C)	37.4°F (3.0°C)	-0.1°F (-0.1°C)	52nd Coolest	Coolest since: 1937	1976
	37.3°F (2.9°C)	37.4°F (3.0°C)	-0.1°F (-0.1°C)	77th Warmest	Warmest since: 1938	2015
	Ties: 1959, 1961, 1977
Oct–Dec 1939 3-Month	43.6°F (6.4°C)	43.0°F (6.1°C)	0.6°F (0.3°C)	73rd Coolest	Coolest since: 1937	1917
	43.6°F (6.4°C)	43.0°F (6.1°C)	0.6°F (0.3°C)	56th Warmest	Warmest since: 1938	2015
	Ties: 1986
Sep–Dec 1939 4-Month	50.2°F (10.1°C)	48.7°F (9.3°C)	1.5°F (0.8°C)	100th Coolest	Coolest since: 1938	1976
Sep–Dec 1939 4-Month	50.2°F (10.1°C)	48.7°F (9.3°C)	1.5°F (0.8°C)	29th Warmest	Warmest since: 1931	1931
Aug–Dec 1939 5-Month	54.7°F (12.6°C)	53.4°F (11.9°C)	1.3°F (0.7°C)	101st Coolest	Coolest since: 1938	1976
	54.7°F (12.6°C)	53.4°F (11.9°C)	1.3°F (0.7°C)	28th Warmest	Warmest since: 1938	1931
	Ties: 1906, 1922, 1938, 1946, 1982
Jul–Dec 1939 6-Month	57.8°F (14.3°C)	56.8°F (13.8°C)	1.0°F (0.5°C)	95th Coolest	Coolest since: 1937	1976
	57.8°F (14.3°C)	56.8°F (13.8°C)	1.0°F (0.5°C)	34th Warmest	Warmest since: 1938	1931
	Ties: 1922, 1933, 1946, 1947, 1949
Jun–Dec 1939 7-Month	59.9°F (15.5°C)	58.7°F (14.8°C)	1.2°F (0.7°C)	102nd Coolest	Coolest since: 1938	1976
	59.9°F (15.5°C)	58.7°F (14.8°C)	1.2°F (0.7°C)	27th Warmest	Warmest since: 1936	1931
	Ties: 1949, 1991, 2012
May–Dec 1939 8-Month	60.4°F (15.8°C)	59.0°F (15.0°C)	1.4°F (0.8°C)	106th Coolest	Coolest since: 1938	1917
	60.4°F (15.8°C)	59.0°F (15.0°C)	1.4°F (0.8°C)	23rd Warmest	Warmest since: 1936	1931
	Ties: 1899, 1913, 1922, 1971
Apr–Dec 1939 9-Month	59.1°F (15.1°C)	58.2°F (14.6°C)	0.9°F (0.5°C)	89th Coolest	Coolest since: 1938	1917
	59.1°F (15.1°C)	58.2°F (14.6°C)	0.9°F (0.5°C)	40th Warmest	Warmest since: 1938	2015
	Ties: 1908, 1938, 1994, 2020, 2022
Mar–Dec 1939 10-Month	57.5°F (14.2°C)	56.5°F (13.6°C)	1.0°F (0.6°C)	93rd Coolest	Coolest since: 1937	1917
	57.5°F (14.2°C)	56.5°F (13.6°C)	1.0°F (0.6°C)	36th Warmest	Warmest since: 1938	2016
	Ties: 1899, 1948, 2002, 2006
Feb–Dec 1939 11-Month	55.4°F (13.0°C)	54.3°F (12.4°C)	1.1°F (0.6°C)	98th Coolest	Coolest since: 1937	1917
	55.4°F (13.0°C)	54.3°F (12.4°C)	1.1°F (0.6°C)	31st Warmest	Warmest since: 1938	2012
	Ties: 1918, 1933, 1941, 1986, 2005
Jan–Dec 1939 12-Month	53.6°F (12.0°C)	52.2°F (11.2°C)	1.4°F (0.8°C)	104th Coolest	Coolest since: 1937	1917
	53.6°F (12.0°C)	52.2°F (11.2°C)	1.4°F (0.8°C)	25th Warmest	Warmest since: 1938	2012
	Ties: 1922, 1954, 1987, 2005
Jul 1938–Dec 1939 18-Month	55.1°F (12.8°C)	53.7°F (12.1°C)	1.4°F (0.7°C)	110th Coolest	Coolest since: 1938	1904, 1917
	55.1°F (12.8°C)	53.7°F (12.1°C)	1.4°F (0.7°C)	18th Warmest	Warmest since: 1932	2012, 2016
	Ties: 1949, 2011
Jan 1938–Dec 1939 24-Month	53.8°F (12.1°C)	52.2°F (11.2°C)	1.6°F (0.9°C)	117th Coolest	Coolest since: 1938	1979
	53.8°F (12.1°C)	52.2°F (11.2°C)	1.6°F (0.9°C)	11th Warmest	Warmest since: 1932	2017
	Ties: 1932, 1954, 2002, 2006, 2013, 2019
Jan 1937–Dec 1939 36-Month	53.1°F (11.7°C)	52.2°F (11.2°C)	0.9°F (0.5°C)	100th Coolest	Coolest since: 1938	1980
	53.1°F (11.7°C)	52.2°F (11.2°C)	0.9°F (0.5°C)	27th Warmest	Warmest since: 1934	2018
	Ties: 2011, 2016
Jan 1936–Dec 1939 48-Month	53.0°F (11.7°C)	52.2°F (11.2°C)	0.8°F (0.5°C)	99th Coolest	Coolest since: 1938	1979
	53.0°F (11.7°C)	52.2°F (11.2°C)	0.8°F (0.5°C)	27th Warmest	Warmest since: 1935	2019
	Ties: 1932, 1935, 1949, 1957, 1992, 1999, 2003, 2015
Jan 1935–Dec 1939 60-Month	52.8°F (11.6°C)	52.2°F (11.2°C)	0.6°F (0.4°C)	90th Coolest	Coolest since: 1938	1980
	52.8°F (11.6°C)	52.2°F (11.2°C)	0.6°F (0.4°C)	35th Warmest	Warmest since: 1936	2020
	Ties: 1925, 1942, 1949, 1953, 1954, 1990, 1993, 1999

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