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 1938

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1938 1-Month	30.1°F (-1.1°C)	28.1°F (-2.2°C)	2.0°F (1.1°C)	91st Coolest	Coolest since: 1936	1990
	30.1°F (-1.1°C)	28.1°F (-2.2°C)	2.0°F (1.1°C)	38th Warmest	Warmest since: 1937	1917
	Ties: 1907, 1942
Nov–Dec 1938 2-Month	30.4°F (-0.9°C)	31.3°F (-0.4°C)	-0.9°F (-0.5°C)	37th Coolest	Coolest since: 1935	1985
	30.4°F (-0.9°C)	31.3°F (-0.4°C)	-0.9°F (-0.5°C)	92nd Warmest	Warmest since: 1937	1917
	Ties: 1964
Oct–Dec 1938 3-Month	35.9°F (2.2°C)	36.1°F (2.3°C)	-0.2°F (-0.1°C)	45th Coolest	Coolest since: 1935	1985
	35.9°F (2.2°C)	36.1°F (2.3°C)	-0.2°F (-0.1°C)	84th Warmest	Warmest since: 1937	1917
	Ties: 1959, 1993
Sep–Dec 1938 4-Month	42.1°F (5.6°C)	41.1°F (5.1°C)	1.0°F (0.5°C)	90th Coolest	Coolest since: 1936	1985
	42.1°F (5.6°C)	41.1°F (5.1°C)	1.0°F (0.5°C)	39th Warmest	Warmest since: 1937	1917
	Ties: 1901, 1906, 1942, 2022
Aug–Dec 1938 5-Month	46.0°F (7.8°C)	45.4°F (7.4°C)	0.6°F (0.4°C)	79th Coolest	Coolest since: 1936	1985
	46.0°F (7.8°C)	45.4°F (7.4°C)	0.6°F (0.4°C)	50th Warmest	Warmest since: 1937	1917, 2014
	Ties: 1973, 1986, 2006, 2013
Jul–Dec 1938 6-Month	49.3°F (9.6°C)	48.6°F (9.2°C)	0.7°F (0.4°C)	84th Coolest	Coolest since: 1936	1985
	49.3°F (9.6°C)	48.6°F (9.2°C)	0.7°F (0.4°C)	45th Warmest	Warmest since: 1937	2014
	Ties: 1943, 1980, 1989, 2016
Jun–Dec 1938 7-Month	50.7°F (10.4°C)	49.8°F (9.9°C)	0.9°F (0.5°C)	94th Coolest	Coolest since: 1936	1916
	50.7°F (10.4°C)	49.8°F (9.9°C)	0.9°F (0.5°C)	35th Warmest	Warmest since: 1937	2021
	Ties: 1989
May–Dec 1938 8-Month	50.6°F (10.3°C)	49.8°F (9.9°C)	0.8°F (0.4°C)	94th Coolest	Coolest since: 1935	1916
	50.6°F (10.3°C)	49.8°F (9.9°C)	0.8°F (0.4°C)	35th Warmest	Warmest since: 1937	2021
	Ties: 1963, 1994, 1999
Apr–Dec 1938 9-Month	49.8°F (9.9°C)	49.0°F (9.4°C)	0.8°F (0.5°C)	94th Coolest	Coolest since: 1935	1916
	49.8°F (9.9°C)	49.0°F (9.4°C)	0.8°F (0.5°C)	35th Warmest	Warmest since: 1937	2021
	Ties: 1906, 1933, 1967, 1997, 2019
Mar–Dec 1938 10-Month	48.3°F (9.1°C)	47.7°F (8.7°C)	0.6°F (0.4°C)	87th Coolest	Coolest since: 1935	1916
	48.3°F (9.1°C)	47.7°F (8.7°C)	0.6°F (0.4°C)	42nd Warmest	Warmest since: 1937	2015
	Ties: 1967, 1974, 2019
Feb–Dec 1938 11-Month	46.7°F (8.2°C)	46.1°F (7.8°C)	0.6°F (0.4°C)	86th Coolest	Coolest since: 1936	1955
	46.7°F (8.2°C)	46.1°F (7.8°C)	0.6°F (0.4°C)	43rd Warmest	Warmest since: 1937	2015
	Ties: 1915, 1973, 1977, 1980, 1990, 2002
Jan–Dec 1938 12-Month	45.2°F (7.3°C)	44.4°F (6.9°C)	0.8°F (0.4°C)	87th Coolest	Coolest since: 1937	1916
	45.2°F (7.3°C)	44.4°F (6.9°C)	0.8°F (0.4°C)	42nd Warmest	Warmest since: 1934	2015
	Ties: 1947, 2002, 2010
Jul 1937–Dec 1938 18-Month	47.0°F (8.3°C)	45.8°F (7.7°C)	1.2°F (0.6°C)	102nd Coolest	Coolest since: 1937	1985
	47.0°F (8.3°C)	45.8°F (7.7°C)	1.2°F (0.6°C)	26th Warmest	Warmest since: 1934	2015
	Ties: 1918, 1926, 1981, 2000, 2017
Jan 1937–Dec 1938 24-Month	44.5°F (6.9°C)	44.4°F (6.9°C)	0.1°F (0.0°C)	61st Coolest	Coolest since: 1937	1917
	44.5°F (6.9°C)	44.4°F (6.9°C)	0.1°F (0.0°C)	67th Warmest	Warmest since: 1935	2015
	Ties: 1905, 1907, 1977, 1978
Jan 1936–Dec 1938 36-Month	44.6°F (7.0°C)	44.5°F (6.9°C)	0.1°F (0.1°C)	66th Coolest	Coolest since: 1937	1913
	44.6°F (7.0°C)	44.5°F (6.9°C)	0.1°F (0.1°C)	61st Warmest	Warmest since: 1936	2016
	Ties: 1906, 1943, 1974, 1980
Jan 1935–Dec 1938 48-Month	44.3°F (6.8°C)	44.4°F (6.9°C)	-0.1°F (-0.1°C)	47th Coolest	Coolest since: 1933	1913, 1914, 1919
	44.3°F (6.8°C)	44.4°F (6.9°C)	-0.1°F (-0.1°C)	79th Warmest	Warmest since: 1937	2016, 2017
	Ties: 1929, 1953, 1965, 1971, 1973, 1975
Jan 1934–Dec 1938 60-Month	45.1°F (7.3°C)	44.4°F (6.9°C)	0.7°F (0.4°C)	90th Coolest	Coolest since: 1937	1913
	45.1°F (7.3°C)	44.4°F (6.9°C)	0.7°F (0.4°C)	35th Warmest	Warmest to Date	2018
	Ties: 1997

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings