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 2021

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 2021 1-Month	28.9°F (-1.7°C)	28.1°F (-2.2°C)	0.8°F (0.5°C)	73rd Coolest	Coolest since: 2017	1990
	28.9°F (-1.7°C)	28.1°F (-2.2°C)	0.8°F (0.5°C)	56th Warmest	Warmest since: 2020	1917
	Ties: 2011
Nov–Dec 2021 2-Month	34.0°F (1.1°C)	31.4°F (-0.3°C)	2.6°F (1.4°C)	112th Coolest	Coolest since: 2020	1985
	34.0°F (1.1°C)	31.4°F (-0.3°C)	2.6°F (1.4°C)	17th Warmest	Warmest since: 2004	1917
	Ties: 1941, 1966, 2004
Oct–Dec 2021 3-Month	38.0°F (3.3°C)	36.2°F (2.3°C)	1.8°F (1.0°C)	110th Coolest	Coolest since: 2020	1985
	38.0°F (3.3°C)	36.2°F (2.3°C)	1.8°F (1.0°C)	19th Warmest	Warmest since: 2020	1917
	Ties: 1987, 2015, 2020
Sep–Dec 2021 4-Month	42.9°F (6.1°C)	41.1°F (5.1°C)	1.8°F (1.0°C)	112th Coolest	Coolest since: 2019	1985
	42.9°F (6.1°C)	41.1°F (5.1°C)	1.8°F (1.0°C)	17th Warmest	Warmest since: 2020	1917
	Ties: 1979, 1980
Aug–Dec 2021 5-Month	47.3°F (8.5°C)	45.5°F (7.5°C)	1.8°F (1.0°C)	112th Coolest	Coolest since: 2019	1985
	47.3°F (8.5°C)	45.5°F (7.5°C)	1.8°F (1.0°C)	17th Warmest	Warmest since: 2020	1917, 2014
	Ties: 1950, 1991, 1998, 2003
Jul–Dec 2021 6-Month	51.2°F (10.7°C)	48.6°F (9.2°C)	2.6°F (1.5°C)	127th Coolest	Coolest since: 2020	1985
	51.2°F (10.7°C)	48.6°F (9.2°C)	2.6°F (1.5°C)	2nd Warmest	Warmest since: 2014	2014
	Ties: 1917
Jun–Dec 2021 7-Month	53.1°F (11.7°C)	49.8°F (9.9°C)	3.3°F (1.8°C)	128th Coolest	Coolest since: 2020	1916
Jun–Dec 2021 7-Month	53.1°F (11.7°C)	49.8°F (9.9°C)	3.3°F (1.8°C)	1st Warmest	Warmest to Date	2021
May–Dec 2021 8-Month	52.8°F (11.6°C)	49.8°F (9.9°C)	3.0°F (1.7°C)	128th Coolest	Coolest since: 2020	1916
May–Dec 2021 8-Month	52.8°F (11.6°C)	49.8°F (9.9°C)	3.0°F (1.7°C)	1st Warmest	Warmest to Date	2021
Apr–Dec 2021 9-Month	51.9°F (11.1°C)	49.0°F (9.4°C)	2.9°F (1.7°C)	128th Coolest	Coolest since: 2020	1916
Apr–Dec 2021 9-Month	51.9°F (11.1°C)	49.0°F (9.4°C)	2.9°F (1.7°C)	1st Warmest	Warmest to Date	2021
Mar–Dec 2021 10-Month	50.4°F (10.2°C)	47.7°F (8.7°C)	2.7°F (1.5°C)	126th Coolest	Coolest since: 2020	1916
Mar–Dec 2021 10-Month	50.4°F (10.2°C)	47.7°F (8.7°C)	2.7°F (1.5°C)	3rd Warmest	Warmest since: 2015	2015
Feb–Dec 2021 11-Month	48.5°F (9.2°C)	46.1°F (7.8°C)	2.4°F (1.4°C)	126th Coolest	Coolest since: 2020	1955
	48.5°F (9.2°C)	46.1°F (7.8°C)	2.4°F (1.4°C)	3rd Warmest	Warmest since: 2015	2015
	Ties: 1992
Jan–Dec 2021 12-Month	47.0°F (8.3°C)	44.4°F (6.9°C)	2.6°F (1.4°C)	126th Coolest	Coolest since: 2020	1916
	47.0°F (8.3°C)	44.4°F (6.9°C)	2.6°F (1.4°C)	3rd Warmest	Warmest since: 2015	2015
	Ties: 1992, 2014
Jul 2020–Dec 2021 18-Month	48.3°F (9.1°C)	45.8°F (7.7°C)	2.5°F (1.4°C)	125th Coolest	Coolest since: 2020	1985
Jul 2020–Dec 2021 18-Month	48.3°F (9.1°C)	45.8°F (7.7°C)	2.5°F (1.4°C)	3rd Warmest	Warmest since: 2015	2015
Jan 2020–Dec 2021 24-Month	46.8°F (8.2°C)	44.5°F (6.9°C)	2.3°F (1.3°C)	125th Coolest	Coolest since: 2020	1917
Jan 2020–Dec 2021 24-Month	46.8°F (8.2°C)	44.5°F (6.9°C)	2.3°F (1.3°C)	3rd Warmest	Warmest since: 2016	2015
Jan 2019–Dec 2021 36-Month	46.2°F (7.9°C)	44.5°F (6.9°C)	1.7°F (1.0°C)	119th Coolest	Coolest since: 2020	1913
	46.2°F (7.9°C)	44.5°F (6.9°C)	1.7°F (1.0°C)	8th Warmest	Warmest since: 2018	2016
	Ties: 2004
Jan 2018–Dec 2021 48-Month	46.2°F (7.9°C)	44.4°F (6.9°C)	1.8°F (1.0°C)	121st Coolest	Coolest since: 2020	1913, 1914, 1919
	46.2°F (7.9°C)	44.4°F (6.9°C)	1.8°F (1.0°C)	5th Warmest	Warmest since: 2018	2016, 2017
	Ties: 2006
Jan 2017–Dec 2021 60-Month	46.1°F (7.8°C)	44.4°F (6.9°C)	1.7°F (0.9°C)	118th Coolest	Coolest since: 2020	1913
	46.1°F (7.8°C)	44.4°F (6.9°C)	1.7°F (0.9°C)	7th Warmest	Warmest since: 2020	2018
	Ties: 2020, 2022

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings