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 2017

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2021)	Warmest/Coolest Since	Record
December 2017 1-Month	28.7°F (-1.8°C)	28.1°F (-2.2°C)	0.6°F (0.4°C)	70th Coolest	Coolest since: 2016	1990
	28.7°F (-1.8°C)	28.1°F (-2.2°C)	0.6°F (0.4°C)	58th Warmest	Warmest since: 2015	1917
	Ties: 1997
Nov–Dec 2017 2-Month	32.7°F (0.4°C)	31.3°F (-0.4°C)	1.4°F (0.8°C)	88th Coolest	Coolest since: 2016	1985
	32.7°F (0.4°C)	31.3°F (-0.4°C)	1.4°F (0.8°C)	40th Warmest	Warmest since: 2014	1917
	Ties: 1926
Oct–Dec 2017 3-Month	36.6°F (2.6°C)	36.2°F (2.3°C)	0.4°F (0.3°C)	71st Coolest	Coolest since: 2013	1985
	36.6°F (2.6°C)	36.2°F (2.3°C)	0.4°F (0.3°C)	57th Warmest	Warmest since: 2016	1917
	Ties: 1899, 1944, 1949
Sep–Dec 2017 4-Month	41.9°F (5.5°C)	41.1°F (5.1°C)	0.8°F (0.4°C)	81st Coolest	Coolest since: 2016	1985
	41.9°F (5.5°C)	41.1°F (5.1°C)	0.8°F (0.4°C)	47th Warmest	Warmest since: 2015	1917
	Ties: 1947
Aug–Dec 2017 5-Month	47.1°F (8.4°C)	45.5°F (7.5°C)	1.6°F (0.9°C)	106th Coolest	Coolest since: 2016	1985
	47.1°F (8.4°C)	45.5°F (7.5°C)	1.6°F (0.9°C)	22nd Warmest	Warmest since: 2015	1917, 2014
	Ties: 1966, 1979, 1981, 1987
Jul–Dec 2017 6-Month	50.6°F (10.3°C)	48.6°F (9.2°C)	2.0°F (1.1°C)	119th Coolest	Coolest since: 2016	1985
	50.6°F (10.3°C)	48.6°F (9.2°C)	2.0°F (1.1°C)	9th Warmest	Warmest since: 2015	2014
	Ties: 1937, 1958, 2015
Jun–Dec 2017 7-Month	51.8°F (11.0°C)	49.7°F (9.8°C)	2.1°F (1.2°C)	122nd Coolest	Coolest since: 2016	1916
Jun–Dec 2017 7-Month	51.8°F (11.0°C)	49.7°F (9.8°C)	2.1°F (1.2°C)	6th Warmest	Warmest since: 2015	2021
May–Dec 2017 8-Month	51.8°F (11.0°C)	49.7°F (9.8°C)	2.1°F (1.2°C)	122nd Coolest	Coolest since: 2016	1916
May–Dec 2017 8-Month	51.8°F (11.0°C)	49.7°F (9.8°C)	2.1°F (1.2°C)	6th Warmest	Warmest since: 2015	2021
Apr–Dec 2017 9-Month	50.8°F (10.4°C)	49.0°F (9.4°C)	1.8°F (1.0°C)	119th Coolest	Coolest since: 2016	1916
	50.8°F (10.4°C)	49.0°F (9.4°C)	1.8°F (1.0°C)	9th Warmest	Warmest since: 2016	2021
	Ties: 1940, 2003, 2016, 2018
Mar–Dec 2017 10-Month	49.6°F (9.8°C)	47.7°F (8.7°C)	1.9°F (1.1°C)	120th Coolest	Coolest since: 2016	1916
	49.6°F (9.8°C)	47.7°F (8.7°C)	1.9°F (1.1°C)	8th Warmest	Warmest since: 2016	2015
	Ties: 1939, 1992, 2003, 2016
Feb–Dec 2017 11-Month	48.0°F (8.9°C)	46.2°F (7.9°C)	1.8°F (1.0°C)	117th Coolest	Coolest since: 2013	1955
	48.0°F (8.9°C)	46.2°F (7.9°C)	1.8°F (1.0°C)	11th Warmest	Warmest since: 2016	2015
	Ties: 2003
Jan–Dec 2017 12-Month	45.8°F (7.7°C)	44.4°F (6.9°C)	1.4°F (0.8°C)	104th Coolest	Coolest since: 2013	1916
	45.8°F (7.7°C)	44.4°F (6.9°C)	1.4°F (0.8°C)	24th Warmest	Warmest since: 2016	2015
	Ties: 1925, 1941, 1953, 1967, 1995, 2001
Jul 2016–Dec 2017 18-Month	47.0°F (8.3°C)	45.8°F (7.7°C)	1.2°F (0.6°C)	102nd Coolest	Coolest since: 2011	1985
	47.0°F (8.3°C)	45.8°F (7.7°C)	1.2°F (0.6°C)	25th Warmest	Warmest since: 2016	2015
	Ties: 1918, 1926, 1938, 1981, 2000
Jan 2016–Dec 2017 24-Month	46.4°F (8.0°C)	44.5°F (6.9°C)	1.9°F (1.1°C)	122nd Coolest	Coolest since: 2014	1917
Jan 2016–Dec 2017 24-Month	46.4°F (8.0°C)	44.5°F (6.9°C)	1.9°F (1.1°C)	5th Warmest	Warmest since: 2016	2015
Jan 2015–Dec 2017 36-Month	47.0°F (8.3°C)	44.4°F (6.9°C)	2.6°F (1.4°C)	124th Coolest	Coolest since: 2015	1913
	47.0°F (8.3°C)	44.4°F (6.9°C)	2.6°F (1.4°C)	2nd Warmest	Warmest since: 2016	2016
	Ties: 2015
Jan 2014–Dec 2017 48-Month	47.0°F (8.3°C)	44.4°F (6.9°C)	2.6°F (1.4°C)	124th Coolest	Coolest since: 2016	1913, 1914, 1919
	47.0°F (8.3°C)	44.4°F (6.9°C)	2.6°F (1.4°C)	1st Warmest	Warmest since: 2016	2016, 2017
	Ties: 2016
Jan 2013–Dec 2017 60-Month	46.7°F (8.2°C)	44.4°F (6.9°C)	2.3°F (1.3°C)	121st Coolest	Coolest since: 2015	1913
Jan 2013–Dec 2017 60-Month	46.7°F (8.2°C)	44.4°F (6.9°C)	2.3°F (1.3°C)	3rd Warmest	Warmest since: 2016	2018

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published November 2022, retrieved on November 30, 2022 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings