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 1958

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1958 1-Month	33.6°F (0.9°C)	28.1°F (-2.2°C)	5.5°F (3.1°C)	124th Coolest	Coolest since: 1957	1990
December 1958 1-Month	33.6°F (0.9°C)	28.1°F (-2.2°C)	5.5°F (3.1°C)	5th Warmest	Warmest since: 1950	1917
Nov–Dec 1958 2-Month	34.1°F (1.2°C)	31.3°F (-0.4°C)	2.8°F (1.6°C)	115th Coolest	Coolest since: 1957	1985
	34.1°F (1.2°C)	31.3°F (-0.4°C)	2.8°F (1.6°C)	14th Warmest	Warmest since: 1953	1917
	Ties: 1949, 1981
Oct–Dec 1958 3-Month	38.6°F (3.7°C)	36.1°F (2.3°C)	2.5°F (1.4°C)	115th Coolest	Coolest since: 1957	1985
	38.6°F (3.7°C)	36.1°F (2.3°C)	2.5°F (1.4°C)	14th Warmest	Warmest since: 1953	1917
	Ties: 1965
Sep–Dec 1958 4-Month	42.8°F (6.0°C)	41.0°F (5.0°C)	1.8°F (1.0°C)	109th Coolest	Coolest since: 1957	1985
	42.8°F (6.0°C)	41.0°F (5.0°C)	1.8°F (1.0°C)	20th Warmest	Warmest since: 1953	1917
	Ties: 1974, 1988, 2001
Aug–Dec 1958 5-Month	47.6°F (8.7°C)	45.4°F (7.4°C)	2.2°F (1.3°C)	121st Coolest	Coolest since: 1957	1985
	47.6°F (8.7°C)	45.4°F (7.4°C)	2.2°F (1.3°C)	8th Warmest	Warmest since: 1953	1917, 2014
	Ties: 2001, 2022
Jul–Dec 1958 6-Month	50.6°F (10.3°C)	48.6°F (9.2°C)	2.0°F (1.1°C)	119th Coolest	Coolest since: 1957	1985
	50.6°F (10.3°C)	48.6°F (9.2°C)	2.0°F (1.1°C)	10th Warmest	Warmest since: 1939	2014
	Ties: 1937, 2015, 2017
Jun–Dec 1958 7-Month	51.9°F (11.1°C)	49.8°F (9.9°C)	2.1°F (1.2°C)	124th Coolest	Coolest since: 1957	1916
	51.9°F (11.1°C)	49.8°F (9.9°C)	2.1°F (1.2°C)	5th Warmest	Warmest to Date	2021
	Ties: 2022
May–Dec 1958 8-Month	52.5°F (11.4°C)	49.8°F (9.9°C)	2.7°F (1.5°C)	126th Coolest	Coolest since: 1957	1916
	52.5°F (11.4°C)	49.8°F (9.9°C)	2.7°F (1.5°C)	3rd Warmest	Warmest to Date	2021
	Ties: 2014
Apr–Dec 1958 9-Month	51.2°F (10.7°C)	49.0°F (9.4°C)	2.2°F (1.3°C)	124th Coolest	Coolest since: 1957	1916
Apr–Dec 1958 9-Month	51.2°F (10.7°C)	49.0°F (9.4°C)	2.2°F (1.3°C)	5th Warmest	Warmest since: 1934	2021
Mar–Dec 1958 10-Month	49.5°F (9.7°C)	47.7°F (8.7°C)	1.8°F (1.0°C)	116th Coolest	Coolest since: 1957	1916
Mar–Dec 1958 10-Month	49.5°F (9.7°C)	47.7°F (8.7°C)	1.8°F (1.0°C)	13th Warmest	Warmest since: 1940	2015
Feb–Dec 1958 11-Month	48.4°F (9.1°C)	46.1°F (7.8°C)	2.3°F (1.3°C)	124th Coolest	Coolest since: 1957	1955
	48.4°F (9.1°C)	46.1°F (7.8°C)	2.3°F (1.3°C)	5th Warmest	Warmest since: 1934	2015
	Ties: 2014, 2016
Jan–Dec 1958 12-Month	46.8°F (8.2°C)	44.4°F (6.9°C)	2.4°F (1.3°C)	121st Coolest	Coolest since: 1957	1916
Jan–Dec 1958 12-Month	46.8°F (8.2°C)	44.4°F (6.9°C)	2.4°F (1.3°C)	8th Warmest	Warmest since: 1934	2015
Jul 1957–Dec 1958 18-Month	47.4°F (8.6°C)	45.9°F (7.7°C)	1.5°F (0.9°C)	116th Coolest	Coolest since: 1957	1985
	47.4°F (8.6°C)	45.9°F (7.7°C)	1.5°F (0.9°C)	12th Warmest	Warmest since: 1940	2015
	Ties: 1998, 2013
Jan 1957–Dec 1958 24-Month	45.4°F (7.4°C)	44.5°F (6.9°C)	0.9°F (0.5°C)	96th Coolest	Coolest since: 1957	1917
	45.4°F (7.4°C)	44.5°F (6.9°C)	0.9°F (0.5°C)	32nd Warmest	Warmest since: 1941	2015
	Ties: 1981, 1991
Jan 1956–Dec 1958 36-Month	44.9°F (7.2°C)	44.5°F (6.9°C)	0.4°F (0.3°C)	78th Coolest	Coolest since: 1957	1913
	44.9°F (7.2°C)	44.5°F (6.9°C)	0.4°F (0.3°C)	49th Warmest	Warmest since: 1942	2016
	Ties: 1969, 2010
Jan 1955–Dec 1958 48-Month	44.2°F (6.8°C)	44.4°F (6.9°C)	-0.2°F (-0.1°C)	40th Coolest	Coolest since: 1957	1913, 1914, 1919
	44.2°F (6.8°C)	44.4°F (6.9°C)	-0.2°F (-0.1°C)	86th Warmest	Warmest since: 1954	2016, 2017
	Ties: 1906, 1908, 1945, 1946, 1948, 1978
Jan 1954–Dec 1958 60-Month	44.2°F (6.8°C)	44.4°F (6.9°C)	-0.2°F (-0.1°C)	39th Coolest	Coolest since: 1957	1913
	44.2°F (6.8°C)	44.4°F (6.9°C)	-0.2°F (-0.1°C)	86th Warmest	Warmest since: 1954	2018
	Ties: 1904, 1907, 1946, 1948, 1959, 1972, 1975

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 3, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings