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 2008

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 2008 1-Month	25.6°F (-3.6°C)	28.1°F (-2.2°C)	-2.5°F (-1.4°C)	25th Coolest	Coolest since: 1992	1990
December 2008 1-Month	25.6°F (-3.6°C)	28.1°F (-2.2°C)	-2.5°F (-1.4°C)	104th Warmest	Warmest since: 2007	1917
Nov–Dec 2008 2-Month	32.5°F (0.3°C)	31.3°F (-0.4°C)	1.2°F (0.7°C)	84th Coolest	Coolest since: 2007	1985
Nov–Dec 2008 2-Month	32.5°F (0.3°C)	31.3°F (-0.4°C)	1.2°F (0.7°C)	45th Warmest	Warmest since: 2004	1917
Oct–Dec 2008 3-Month	37.0°F (2.8°C)	36.1°F (2.3°C)	0.9°F (0.5°C)	81st Coolest	Coolest since: 2007	1985
	37.0°F (2.8°C)	36.1°F (2.3°C)	0.9°F (0.5°C)	48th Warmest	Warmest since: 2004	1917
	Ties: 1947, 2016
Sep–Dec 2008 4-Month	42.0°F (5.6°C)	41.1°F (5.1°C)	0.9°F (0.5°C)	85th Coolest	Coolest since: 2007	1985
	42.0°F (5.6°C)	41.1°F (5.1°C)	0.9°F (0.5°C)	44th Warmest	Warmest since: 2004	1917
	Ties: 1940, 1952, 2010
Aug–Dec 2008 5-Month	46.4°F (8.0°C)	45.4°F (7.4°C)	1.0°F (0.6°C)	90th Coolest	Coolest since: 2007	1985
	46.4°F (8.0°C)	45.4°F (7.4°C)	1.0°F (0.6°C)	39th Warmest	Warmest since: 2004	1917, 2014
	Ties: 1943, 2002, 2016
Jul–Dec 2008 6-Month	49.6°F (9.8°C)	48.6°F (9.2°C)	1.0°F (0.6°C)	93rd Coolest	Coolest since: 2007	1985
	49.6°F (9.8°C)	48.6°F (9.2°C)	1.0°F (0.6°C)	36th Warmest	Warmest since: 2007	2014
	Ties: 1962, 1974, 1987, 2007, 2011
Jun–Dec 2008 7-Month	50.5°F (10.3°C)	49.8°F (9.9°C)	0.7°F (0.4°C)	89th Coolest	Coolest since: 2005	1916
	50.5°F (10.3°C)	49.8°F (9.9°C)	0.7°F (0.4°C)	40th Warmest	Warmest since: 2007	2021
	Ties: 1906, 1918, 1962, 1977, 1981, 1997
May–Dec 2008 8-Month	50.5°F (10.3°C)	49.8°F (9.9°C)	0.7°F (0.4°C)	90th Coolest	Coolest since: 2005	1916
	50.5°F (10.3°C)	49.8°F (9.9°C)	0.7°F (0.4°C)	39th Warmest	Warmest since: 2007	2021
	Ties: 1925, 1973, 1989, 2019
Apr–Dec 2008 9-Month	49.2°F (9.6°C)	49.0°F (9.4°C)	0.2°F (0.2°C)	58th Coolest	Coolest since: 1996	1916
	49.2°F (9.6°C)	49.0°F (9.4°C)	0.2°F (0.2°C)	71st Warmest	Warmest since: 2007	2021
	Ties: 1918, 1943, 1960, 1961
Mar–Dec 2008 10-Month	47.6°F (8.7°C)	47.6°F (8.7°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1993	1916
	47.6°F (8.7°C)	47.6°F (8.7°C)	0.0°F (0.0°C)	75th Warmest	Warmest since: 2007	2015
	Ties: 1901, 1928, 2010
Feb–Dec 2008 11-Month	46.2°F (7.9°C)	46.1°F (7.8°C)	0.1°F (0.1°C)	58th Coolest	Coolest since: 1993	1955
	46.2°F (7.9°C)	46.1°F (7.8°C)	0.1°F (0.1°C)	71st Warmest	Warmest since: 2007	2015
	Ties: 1907, 1918, 1930, 1931, 1936, 1968, 1969, 1989, 2019
Jan–Dec 2008 12-Month	44.4°F (6.9°C)	44.4°F (6.9°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1993	1916
	44.4°F (6.9°C)	44.4°F (6.9°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 2007	2015
	Ties: 1921, 1928, 1946, 1959, 1962, 1970
Jul 2007–Dec 2008 18-Month	46.2°F (7.9°C)	45.9°F (7.7°C)	0.3°F (0.2°C)	75th Coolest	Coolest since: 1993	1985
	46.2°F (7.9°C)	45.9°F (7.7°C)	0.3°F (0.2°C)	53rd Warmest	Warmest since: 2007	2015
	Ties: 1900, 1977
Jan 2007–Dec 2008 24-Month	45.2°F (7.3°C)	44.4°F (6.9°C)	0.8°F (0.4°C)	90th Coolest	Coolest since: 1997	1917
	45.2°F (7.3°C)	44.4°F (6.9°C)	0.8°F (0.4°C)	38th Warmest	Warmest since: 2007	2015
	Ties: 1968, 1993, 2012
Jan 2006–Dec 2008 36-Month	45.5°F (7.5°C)	44.5°F (6.9°C)	1.0°F (0.6°C)	105th Coolest	Coolest since: 2002	1913
	45.5°F (7.5°C)	44.5°F (6.9°C)	1.0°F (0.6°C)	22nd Warmest	Warmest since: 2007	2016
	Ties: 1936, 1994, 1996, 1998, 2001
Jan 2005–Dec 2008 48-Month	45.5°F (7.5°C)	44.4°F (6.9°C)	1.1°F (0.6°C)	102nd Coolest	Coolest since: 2002	1913, 1914, 1919
	45.5°F (7.5°C)	44.4°F (6.9°C)	1.1°F (0.6°C)	24th Warmest	Warmest since: 2007	2016, 2017
	Ties: 1994, 1997, 1999
Jan 2004–Dec 2008 60-Month	45.7°F (7.6°C)	44.4°F (6.9°C)	1.3°F (0.7°C)	112th Coolest	Coolest since: 2003	1913
	45.7°F (7.6°C)	44.4°F (6.9°C)	1.3°F (0.7°C)	13th Warmest	Warmest since: 2007	2018
	Ties: 1990, 1992, 1998, 2003, 2014

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings