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 1909

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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 1909 1-Month	25.5°F (-3.6°C)	32.4°F (0.2°C)	-6.9°F (-3.8°C)	8th Coolest	Coolest since: 1903	1989
	25.5°F (-3.6°C)	32.4°F (0.2°C)	-6.9°F (-3.8°C)	121st Warmest	Warmest since: 1908	2015
	Ties: 1935
Nov–Dec 1909 2-Month	37.5°F (3.1°C)	37.4°F (3.0°C)	0.1°F (0.1°C)	58th Coolest	Coolest since: 1907	1976
	37.5°F (3.1°C)	37.4°F (3.0°C)	0.1°F (0.1°C)	71st Warmest	Warmest since: 1908	2015
	Ties: 1972, 1993
Oct–Dec 1909 3-Month	41.6°F (5.3°C)	43.0°F (6.1°C)	-1.4°F (-0.8°C)	30th Coolest	Coolest since: 1907	1917
	41.6°F (5.3°C)	43.0°F (6.1°C)	-1.4°F (-0.8°C)	99th Warmest	Warmest since: 1908	2015
	Ties: 1981, 1983
Sep–Dec 1909 4-Month	47.2°F (8.4°C)	48.7°F (9.3°C)	-1.5°F (-0.9°C)	19th Coolest	Coolest since: 1903	1976
	47.2°F (8.4°C)	48.7°F (9.3°C)	-1.5°F (-0.9°C)	110th Warmest	Warmest since: 1908	1931
	Ties: 1944, 1966
Aug–Dec 1909 5-Month	52.3°F (11.3°C)	53.4°F (11.9°C)	-1.1°F (-0.6°C)	25th Coolest	Coolest since: 1907	1976
	52.3°F (11.3°C)	53.4°F (11.9°C)	-1.1°F (-0.6°C)	104th Warmest	Warmest since: 1908	1931
	Ties: 1924
Jul–Dec 1909 6-Month	55.5°F (13.1°C)	56.8°F (13.8°C)	-1.3°F (-0.7°C)	15th Coolest	Coolest since: 1904	1976
	55.5°F (13.1°C)	56.8°F (13.8°C)	-1.3°F (-0.7°C)	114th Warmest	Warmest since: 1908	1931
	Ties: 1904, 1929, 1943, 1958
Jun–Dec 1909 7-Month	57.7°F (14.3°C)	58.7°F (14.8°C)	-1.0°F (-0.5°C)	22nd Coolest	Coolest since: 1907	1976
	57.7°F (14.3°C)	58.7°F (14.8°C)	-1.0°F (-0.5°C)	107th Warmest	Warmest since: 1908	1931
	Ties: 1951, 1981
May–Dec 1909 8-Month	58.0°F (14.4°C)	59.0°F (15.0°C)	-1.0°F (-0.6°C)	22nd Coolest	Coolest since: 1907	1917
	58.0°F (14.4°C)	59.0°F (15.0°C)	-1.0°F (-0.6°C)	107th Warmest	Warmest since: 1908	1931
	Ties: 1904, 1925, 1937
Apr–Dec 1909 9-Month	57.2°F (14.0°C)	58.2°F (14.6°C)	-1.0°F (-0.6°C)	18th Coolest	Coolest since: 1907	1917
	57.2°F (14.0°C)	58.2°F (14.6°C)	-1.0°F (-0.6°C)	111th Warmest	Warmest since: 1908	2015
	Ties: 1926, 1937, 1945, 1974, 2000
Mar–Dec 1909 10-Month	55.4°F (13.0°C)	56.5°F (13.6°C)	-1.1°F (-0.6°C)	15th Coolest	Coolest since: 1907	1917
	55.4°F (13.0°C)	56.5°F (13.6°C)	-1.1°F (-0.6°C)	114th Warmest	Warmest since: 1908	2016
	Ties: 1966, 1992, 1996
Feb–Dec 1909 11-Month	53.8°F (12.1°C)	54.3°F (12.4°C)	-0.5°F (-0.3°C)	40th Coolest	Coolest since: 1907	1917
	53.8°F (12.1°C)	54.3°F (12.4°C)	-0.5°F (-0.3°C)	89th Warmest	Warmest since: 1908	2012
	Ties: 1940, 1974, 1992
Jan–Dec 1909 12-Month	52.1°F (11.2°C)	52.2°F (11.2°C)	-0.1°F (0.0°C)	52nd Coolest	Coolest since: 1907	1917
	52.1°F (11.2°C)	52.2°F (11.2°C)	-0.1°F (0.0°C)	77th Warmest	Warmest since: 1908	2012
	Ties: 1918, 1935, 1984, 2003, 2008
Jul 1908–Dec 1909 18-Month	53.9°F (12.2°C)	53.7°F (12.1°C)	0.2°F (0.1°C)	60th Coolest	Coolest since: 1908	1904, 1917
	53.9°F (12.2°C)	53.7°F (12.1°C)	0.2°F (0.1°C)	68th Warmest	Warmest since: 1908	2012, 2016
	Ties: 1896, 1906, 1908, 1985
Jan 1908–Dec 1909 24-Month	52.5°F (11.4°C)	52.2°F (11.2°C)	0.3°F (0.2°C)	74th Coolest	Coolest since: 1908	1979
	52.5°F (11.4°C)	52.2°F (11.2°C)	0.3°F (0.2°C)	54th Warmest	Warmest since: 1900	2017
	Ties: 1899, 1911, 1935, 1952, 1975
Jan 1907–Dec 1909 36-Month	52.1°F (11.2°C)	52.2°F (11.2°C)	-0.1°F (0.0°C)	44th Coolest	Coolest since: 1907	1980
	52.1°F (11.2°C)	52.2°F (11.2°C)	-0.1°F (0.0°C)	83rd Warmest	Warmest since: 1908	2018
	Ties: 1902, 1910, 1920, 1927, 1937, 1952, 1984, 1985, 1994, 1995, 2015
Jan 1906–Dec 1909 48-Month	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	49th Coolest	Coolest since: 1908	1979
	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	77th Warmest	Warmest since: 1901	2019
	Ties: 1898, 1913, 1973, 1976
Jan 1905–Dec 1909 60-Month	52.0°F (11.1°C)	52.2°F (11.2°C)	-0.2°F (-0.1°C)	39th Coolest	Coolest since: 1908	1980
	52.0°F (11.1°C)	52.2°F (11.2°C)	-0.2°F (-0.1°C)	86th Warmest	Warmest since: 1903	2020
	Ties: 1903, 1910, 1973, 1976

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 25, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings