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.

Pacific Northwest 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	27.6°F (-2.4°C)	28.1°F (-2.2°C)	-0.5°F (-0.2°C)	47th Coolest	Coolest since: 1916	1990
	27.6°F (-2.4°C)	28.1°F (-2.2°C)	-0.5°F (-0.2°C)	82nd Warmest	Warmest since: 1917	1917
	Ties: 1945, 1954
Nov–Dec 1918 2-Month	30.6°F (-0.8°C)	31.3°F (-0.4°C)	-0.7°F (-0.4°C)	39th Coolest	Coolest since: 1916	1985
	30.6°F (-0.8°C)	31.3°F (-0.4°C)	-0.7°F (-0.4°C)	90th Warmest	Warmest since: 1917	1917
	Ties: 1915, 1945
Oct–Dec 1918 3-Month	36.3°F (2.4°C)	36.2°F (2.3°C)	0.1°F (0.1°C)	58th Coolest	Coolest since: 1916	1985
	36.3°F (2.4°C)	36.2°F (2.3°C)	0.1°F (0.1°C)	71st Warmest	Warmest since: 1917	1917
	Ties: 1996, 1998, 2005
Sep–Dec 1918 4-Month	41.8°F (5.4°C)	41.1°F (5.1°C)	0.7°F (0.3°C)	79th Coolest	Coolest since: 1916	1985
	41.8°F (5.4°C)	41.1°F (5.1°C)	0.7°F (0.3°C)	50th Warmest	Warmest since: 1917	1917
	Ties: 1910, 1944, 1949, 1965, 1973, 2018
Aug–Dec 1918 5-Month	45.5°F (7.5°C)	45.5°F (7.5°C)	0.0°F (0.0°C)	56th Coolest	Coolest since: 1916	1985
	45.5°F (7.5°C)	45.5°F (7.5°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1917	1917, 2014
	Ties: 1925, 1941, 1996, 2007
Jul–Dec 1918 6-Month	48.6°F (9.2°C)	48.7°F (9.3°C)	-0.1°F (-0.1°C)	52nd Coolest	Coolest since: 1916	1985
	48.6°F (9.2°C)	48.7°F (9.3°C)	-0.1°F (-0.1°C)	77th Warmest	Warmest since: 1917	2014
	Ties: 1910, 1926, 1969
Jun–Dec 1918 7-Month	50.5°F (10.3°C)	49.8°F (9.9°C)	0.7°F (0.4°C)	89th Coolest	Coolest since: 1916	1916
	50.5°F (10.3°C)	49.8°F (9.9°C)	0.7°F (0.4°C)	40th Warmest	Warmest since: 1917	2021
	Ties: 1906, 1962, 1977, 1981, 1997, 2008
May–Dec 1918 8-Month	50.1°F (10.1°C)	49.8°F (9.9°C)	0.3°F (0.2°C)	69th Coolest	Coolest since: 1916	1916
	50.1°F (10.1°C)	49.8°F (9.9°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 1917	2021
	Ties: 1901, 1957, 1961
Apr–Dec 1918 9-Month	49.2°F (9.6°C)	49.0°F (9.4°C)	0.2°F (0.2°C)	58th Coolest	Coolest since: 1916	1916
	49.2°F (9.6°C)	49.0°F (9.4°C)	0.2°F (0.2°C)	71st Warmest	Warmest since: 1917	2021
	Ties: 1943, 1960, 1961, 2008
Mar–Dec 1918 10-Month	48.0°F (8.9°C)	47.7°F (8.7°C)	0.3°F (0.2°C)	75th Coolest	Coolest since: 1917	1916
	48.0°F (8.9°C)	47.7°F (8.7°C)	0.3°F (0.2°C)	54th Warmest	Warmest since: 1915	2015
	Ties: 1906, 1915, 1953, 1957, 1962, 1969, 1977, 1980, 1991
Feb–Dec 1918 11-Month	46.2°F (7.9°C)	46.2°F (7.9°C)	0.0°F (0.0°C)	58th Coolest	Coolest since: 1917	1955
	46.2°F (7.9°C)	46.2°F (7.9°C)	0.0°F (0.0°C)	71st Warmest	Warmest since: 1915	2015
	Ties: 1907, 1930, 1931, 1936, 1968, 1969, 1989, 2008, 2019
Jan–Dec 1918 12-Month	44.8°F (7.1°C)	44.4°F (6.9°C)	0.4°F (0.2°C)	73rd Coolest	Coolest since: 1917	1916
	44.8°F (7.1°C)	44.4°F (6.9°C)	0.4°F (0.2°C)	56th Warmest	Warmest since: 1915	2015
	Ties: 1931, 1977, 1996
Jul 1917–Dec 1918 18-Month	47.0°F (8.3°C)	45.9°F (7.7°C)	1.1°F (0.6°C)	102nd Coolest	Coolest since: 1917	1985
	47.0°F (8.3°C)	45.9°F (7.7°C)	1.1°F (0.6°C)	26th Warmest	Warmest to Date	2015
	Ties: 1926, 1938, 1981, 2000, 2017
Jan 1917–Dec 1918 24-Month	44.2°F (6.8°C)	44.5°F (6.9°C)	-0.3°F (-0.1°C)	49th Coolest	Coolest since: 1917	1917
	44.2°F (6.8°C)	44.5°F (6.9°C)	-0.3°F (-0.1°C)	79th Warmest	Warmest since: 1915	2015
	Ties: 1936, 1937, 1945, 1975
Jan 1916–Dec 1918 36-Month	43.3°F (6.3°C)	44.4°F (6.9°C)	-1.1°F (-0.6°C)	2nd Coolest	Coolest since: 1917	1913
	43.3°F (6.3°C)	44.4°F (6.9°C)	-1.1°F (-0.6°C)	125th Warmest	Warmest since: 1917	2016
	Ties: 1917, 1950, 1957
Jan 1915–Dec 1918 48-Month	43.7°F (6.5°C)	44.4°F (6.9°C)	-0.7°F (-0.4°C)	18th Coolest	Coolest since: 1917	1913, 1914, 1919
	43.7°F (6.5°C)	44.4°F (6.9°C)	-0.7°F (-0.4°C)	108th Warmest	Warmest since: 1915	2016, 2017
	Ties: 1952
Jan 1914–Dec 1918 60-Month	43.9°F (6.6°C)	44.4°F (6.9°C)	-0.5°F (-0.3°C)	20th Coolest	Coolest since: 1917	1913
	43.9°F (6.6°C)	44.4°F (6.9°C)	-0.5°F (-0.3°C)	105th Warmest	Warmest since: 1910	2018
	Ties: 1900, 1902, 1905, 1921, 1950, 1985, 1986

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings