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 1918

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1918 1-Month	39.5°F (4.2°C)	32.4°F (0.2°C)	7.1°F (4.0°C)	120th Coolest	Coolest since: 1917	1989
	39.5°F (4.2°C)	32.4°F (0.2°C)	7.1°F (4.0°C)	9th Warmest	Warmest to Date	2015
	Ties: 2012
Nov–Dec 1918 2-Month	40.7°F (4.8°C)	37.3°F (2.9°C)	3.4°F (1.9°C)	110th Coolest	Coolest since: 1917	1976
	40.7°F (4.8°C)	37.3°F (2.9°C)	3.4°F (1.9°C)	19th Warmest	Warmest to Date	2015
	Ties: 1965
Oct–Dec 1918 3-Month	46.2°F (7.9°C)	42.9°F (6.1°C)	3.3°F (1.8°C)	113th Coolest	Coolest since: 1917	1917
Oct–Dec 1918 3-Month	46.2°F (7.9°C)	42.9°F (6.1°C)	3.3°F (1.8°C)	16th Warmest	Warmest to Date	2015
Sep–Dec 1918 4-Month	49.4°F (9.7°C)	48.7°F (9.3°C)	0.7°F (0.4°C)	71st Coolest	Coolest since: 1917	1976
	49.4°F (9.7°C)	48.7°F (9.3°C)	0.7°F (0.4°C)	58th Warmest	Warmest since: 1915	1931
	Ties: 1899, 1934, 1940
Aug–Dec 1918 5-Month	54.8°F (12.7°C)	53.3°F (11.8°C)	1.5°F (0.9°C)	104th Coolest	Coolest since: 1917	1976
	54.8°F (12.7°C)	53.3°F (11.8°C)	1.5°F (0.9°C)	25th Warmest	Warmest since: 1913	1931
	Ties: 1913, 1994
Jul–Dec 1918 6-Month	57.5°F (14.2°C)	56.8°F (13.8°C)	0.7°F (0.4°C)	79th Coolest	Coolest since: 1917	1976
	57.5°F (14.2°C)	56.8°F (13.8°C)	0.7°F (0.4°C)	50th Warmest	Warmest since: 1913	1931
	Ties: 1923, 1975, 1978, 2022
Jun–Dec 1918 7-Month	59.2°F (15.1°C)	58.6°F (14.8°C)	0.6°F (0.3°C)	72nd Coolest	Coolest since: 1917	1976
	59.2°F (15.1°C)	58.6°F (14.8°C)	0.6°F (0.3°C)	57th Warmest	Warmest since: 1913	1931
	Ties: 1902, 1982, 2017
May–Dec 1918 8-Month	60.1°F (15.6°C)	59.0°F (15.0°C)	1.1°F (0.6°C)	95th Coolest	Coolest since: 1917	1917
	60.1°F (15.6°C)	59.0°F (15.0°C)	1.1°F (0.6°C)	34th Warmest	Warmest since: 1913	1931
	Ties: 2005
Apr–Dec 1918 9-Month	58.9°F (14.9°C)	58.2°F (14.6°C)	0.7°F (0.3°C)	80th Coolest	Coolest since: 1917	1917
	58.9°F (14.9°C)	58.2°F (14.6°C)	0.7°F (0.3°C)	49th Warmest	Warmest since: 1913	2015
	Ties: 1946, 1955, 1973
Mar–Dec 1918 10-Month	57.6°F (14.2°C)	56.5°F (13.6°C)	1.1°F (0.6°C)	96th Coolest	Coolest since: 1917	1917
	57.6°F (14.2°C)	56.5°F (13.6°C)	1.1°F (0.6°C)	33rd Warmest	Warmest since: 1913	2016
	Ties: 1913, 1986
Feb–Dec 1918 11-Month	55.4°F (13.0°C)	54.2°F (12.3°C)	1.2°F (0.7°C)	98th Coolest	Coolest since: 1917	1917
	55.4°F (13.0°C)	54.2°F (12.3°C)	1.2°F (0.7°C)	31st Warmest	Warmest since: 1911	2012
	Ties: 1933, 1939, 1941, 1986, 2005
Jan–Dec 1918 12-Month	52.1°F (11.2°C)	52.2°F (11.2°C)	-0.1°F (0.0°C)	54th Coolest	Coolest since: 1917	1917
	52.1°F (11.2°C)	52.2°F (11.2°C)	-0.1°F (0.0°C)	75th Warmest	Warmest since: 1913	2012
	Ties: 1935, 1984, 2008
Jul 1917–Dec 1918 18-Month	52.3°F (11.3°C)	53.7°F (12.1°C)	-1.4°F (-0.8°C)	6th Coolest	Coolest since: 1917	1904, 1917
	52.3°F (11.3°C)	53.7°F (12.1°C)	-1.4°F (-0.8°C)	122nd Warmest	Warmest since: 1916	2012, 2016
	Ties: 1958
Jan 1917–Dec 1918 24-Month	50.6°F (10.3°C)	52.2°F (11.2°C)	-1.6°F (-0.9°C)	3rd Coolest	Coolest since: 1917	1979
Jan 1917–Dec 1918 24-Month	50.6°F (10.3°C)	52.2°F (11.2°C)	-1.6°F (-0.9°C)	125th Warmest	Warmest since: 1916	2017
Jan 1916–Dec 1918 36-Month	51.1°F (10.6°C)	52.2°F (11.2°C)	-1.1°F (-0.6°C)	10th Coolest	Coolest since: 1917	1980
Jan 1916–Dec 1918 36-Month	51.1°F (10.6°C)	52.2°F (11.2°C)	-1.1°F (-0.6°C)	117th Warmest	Warmest since: 1916	2018
Jan 1915–Dec 1918 48-Month	51.2°F (10.7°C)	52.1°F (11.2°C)	-0.9°F (-0.5°C)	6th Coolest	Coolest since: 1917	1979
	51.2°F (10.7°C)	52.1°F (11.2°C)	-0.9°F (-0.5°C)	120th Warmest	Warmest since: 1917	2019
	Ties: 1904, 1905, 1917, 1982
Jan 1914–Dec 1918 60-Month	51.4°F (10.8°C)	52.2°F (11.2°C)	-0.8°F (-0.4°C)	12th Coolest	Coolest since: 1907	1980
	51.4°F (10.8°C)	52.2°F (11.2°C)	-0.8°F (-0.4°C)	113th Warmest	Warmest since: 1917	2020
	Ties: 1966, 1967, 1978, 1983

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings