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 2009

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 2009 1-Month	32.1°F (0.1°C)	32.4°F (0.2°C)	-0.3°F (-0.1°C)	46th Coolest	Coolest since: 2005	1989
December 2009 1-Month	32.1°F (0.1°C)	32.4°F (0.2°C)	-0.3°F (-0.1°C)	83rd Warmest	Warmest since: 2008	2015
Nov–Dec 2009 2-Month	39.6°F (4.2°C)	37.3°F (2.9°C)	2.3°F (1.3°C)	97th Coolest	Coolest since: 2008	1976
	39.6°F (4.2°C)	37.3°F (2.9°C)	2.3°F (1.3°C)	32nd Warmest	Warmest since: 2006	2015
	Ties: 1964, 1978
Oct–Dec 2009 3-Month	43.5°F (6.4°C)	42.9°F (6.1°C)	0.6°F (0.3°C)	71st Coolest	Coolest since: 2008	1917
	43.5°F (6.4°C)	42.9°F (6.1°C)	0.6°F (0.3°C)	58th Warmest	Warmest since: 2007	2015
	Ties: 1912, 1978, 2005
Sep–Dec 2009 4-Month	49.1°F (9.5°C)	48.7°F (9.3°C)	0.4°F (0.2°C)	61st Coolest	Coolest since: 2008	1976
Sep–Dec 2009 4-Month	49.1°F (9.5°C)	48.7°F (9.3°C)	0.4°F (0.2°C)	68th Warmest	Warmest since: 2007	1931
Aug–Dec 2009 5-Month	53.6°F (12.0°C)	53.4°F (11.9°C)	0.2°F (0.1°C)	60th Coolest	Coolest since: 2008	1976
	53.6°F (12.0°C)	53.4°F (11.9°C)	0.2°F (0.1°C)	69th Warmest	Warmest since: 2007	1931
	Ties: 1919, 2010
Jul–Dec 2009 6-Month	56.2°F (13.4°C)	56.8°F (13.8°C)	-0.6°F (-0.4°C)	33rd Coolest	Coolest since: 2000	1976
	56.2°F (13.4°C)	56.8°F (13.8°C)	-0.6°F (-0.4°C)	96th Warmest	Warmest since: 2008	1931
	Ties: 1895, 1901, 1935
Jun–Dec 2009 7-Month	58.3°F (14.6°C)	58.7°F (14.8°C)	-0.4°F (-0.2°C)	35th Coolest	Coolest since: 2000	1976
	58.3°F (14.6°C)	58.7°F (14.8°C)	-0.4°F (-0.2°C)	94th Warmest	Warmest since: 2008	1931
	Ties: 1943, 2014
May–Dec 2009 8-Month	58.8°F (14.9°C)	59.1°F (15.1°C)	-0.3°F (-0.2°C)	41st Coolest	Coolest since: 2008	1917
	58.8°F (14.9°C)	59.1°F (15.1°C)	-0.3°F (-0.2°C)	88th Warmest	Warmest since: 2007	1931
	Ties: 1927, 1943, 1983
Apr–Dec 2009 9-Month	58.1°F (14.5°C)	58.2°F (14.6°C)	-0.1°F (-0.1°C)	44th Coolest	Coolest since: 2008	1917
	58.1°F (14.5°C)	58.2°F (14.6°C)	-0.1°F (-0.1°C)	85th Warmest	Warmest since: 2008	2015
	Ties: 1898, 1932, 1940, 1980, 2008
Mar–Dec 2009 10-Month	56.8°F (13.8°C)	56.5°F (13.6°C)	0.3°F (0.2°C)	64th Coolest	Coolest since: 2008	1917
	56.8°F (13.8°C)	56.5°F (13.6°C)	0.3°F (0.2°C)	65th Warmest	Warmest since: 2007	2016
	Ties: 1952
Feb–Dec 2009 11-Month	54.7°F (12.6°C)	54.3°F (12.4°C)	0.4°F (0.2°C)	74th Coolest	Coolest since: 2008	1917
	54.7°F (12.6°C)	54.3°F (12.4°C)	0.4°F (0.2°C)	55th Warmest	Warmest since: 2007	2012
	Ties: 1925, 1944, 1970, 1971, 1984
Jan–Dec 2009 12-Month	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	58th Coolest	Coolest since: 2008	1917
	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	71st Warmest	Warmest since: 2007	2012
	Ties: 1899, 1974, 1983, 1995, 2013
Jul 2008–Dec 2009 18-Month	53.6°F (12.0°C)	53.7°F (12.1°C)	-0.1°F (-0.1°C)	46th Coolest	Coolest since: 1997	1904, 1917
	53.6°F (12.0°C)	53.7°F (12.1°C)	-0.1°F (-0.1°C)	82nd Warmest	Warmest since: 2008	2012, 2016
	Ties: 1899
Jan 2008–Dec 2009 24-Month	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	59th Coolest	Coolest since: 1997	1979
	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	69th Warmest	Warmest since: 2008	2017
	Ties: 1901, 1928, 1984, 1995
Jan 2007–Dec 2009 36-Month	52.8°F (11.6°C)	52.1°F (11.2°C)	0.7°F (0.4°C)	88th Coolest	Coolest since: 1998	1980
	52.8°F (11.6°C)	52.1°F (11.2°C)	0.7°F (0.4°C)	39th Warmest	Warmest since: 2008	2018
	Ties: 1900, 1940, 1957, 1975, 1993, 2014
Jan 2006–Dec 2009 48-Month	53.1°F (11.7°C)	52.2°F (11.2°C)	0.9°F (0.5°C)	103rd Coolest	Coolest since: 2003	1979
	53.1°F (11.7°C)	52.2°F (11.2°C)	0.9°F (0.5°C)	23rd Warmest	Warmest since: 2008	2019
	Ties: 1923, 1954, 2014
Jan 2005–Dec 2009 60-Month	53.2°F (11.8°C)	52.2°F (11.2°C)	1.0°F (0.6°C)	107th Coolest	Coolest since: 2004	1980
	53.2°F (11.8°C)	52.2°F (11.2°C)	1.0°F (0.6°C)	18th Warmest	Warmest since: 2008	2020
	Ties: 1933, 1957, 2003, 2015, 2017

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings