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 1917

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1917 1-Month	35.5°F (1.9°C)	28.1°F (-2.2°C)	7.4°F (4.1°C)	128th Coolest	Coolest since: 1916	1990
December 1917 1-Month	35.5°F (1.9°C)	28.1°F (-2.2°C)	7.4°F (4.1°C)	1st Warmest	Warmest to Date	1917
Nov–Dec 1917 2-Month	37.1°F (2.8°C)	31.3°F (-0.4°C)	5.8°F (3.2°C)	128th Coolest	Coolest since: 1916	1985
Nov–Dec 1917 2-Month	37.1°F (2.8°C)	31.3°F (-0.4°C)	5.8°F (3.2°C)	1st Warmest	Warmest to Date	1917
Oct–Dec 1917 3-Month	40.2°F (4.6°C)	36.1°F (2.3°C)	4.1°F (2.3°C)	128th Coolest	Coolest since: 1916	1985
Oct–Dec 1917 3-Month	40.2°F (4.6°C)	36.1°F (2.3°C)	4.1°F (2.3°C)	1st Warmest	Warmest to Date	1917
Sep–Dec 1917 4-Month	44.4°F (6.9°C)	41.0°F (5.0°C)	3.4°F (1.9°C)	128th Coolest	Coolest since: 1916	1985
Sep–Dec 1917 4-Month	44.4°F (6.9°C)	41.0°F (5.0°C)	3.4°F (1.9°C)	1st Warmest	Warmest to Date	1917
Aug–Dec 1917 5-Month	48.3°F (9.1°C)	45.5°F (7.5°C)	2.8°F (1.6°C)	128th Coolest	Coolest since: 1916	1985
	48.3°F (9.1°C)	45.5°F (7.5°C)	2.8°F (1.6°C)	1st Warmest	Warmest to Date	1917, 2014
	Ties: 2014
Jul–Dec 1917 6-Month	51.2°F (10.7°C)	48.6°F (9.2°C)	2.6°F (1.5°C)	127th Coolest	Coolest since: 1916	1985
	51.2°F (10.7°C)	48.6°F (9.2°C)	2.6°F (1.5°C)	2nd Warmest	Warmest to Date	2014
	Ties: 2021
Jun–Dec 1917 7-Month	51.6°F (10.9°C)	49.7°F (9.8°C)	1.9°F (1.1°C)	120th Coolest	Coolest since: 1916	1916
	51.6°F (10.9°C)	49.7°F (9.8°C)	1.9°F (1.1°C)	9th Warmest	Warmest to Date	2021
	Ties: 1967, 2012
May–Dec 1917 8-Month	51.0°F (10.6°C)	49.7°F (9.8°C)	1.3°F (0.8°C)	104th Coolest	Coolest since: 1916	1916
	51.0°F (10.6°C)	49.7°F (9.8°C)	1.3°F (0.8°C)	25th Warmest	Warmest to Date	2021
	Ties: 2007, 2016
Apr–Dec 1917 9-Month	49.7°F (9.8°C)	49.0°F (9.4°C)	0.7°F (0.4°C)	88th Coolest	Coolest since: 1916	1916
	49.7°F (9.8°C)	49.0°F (9.4°C)	0.7°F (0.4°C)	41st Warmest	Warmest since: 1910	2021
	Ties: 1910, 1974
Mar–Dec 1917 10-Month	47.4°F (8.6°C)	47.7°F (8.7°C)	-0.3°F (-0.1°C)	44th Coolest	Coolest since: 1916	1916
	47.4°F (8.6°C)	47.7°F (8.7°C)	-0.3°F (-0.1°C)	85th Warmest	Warmest since: 1915	2015
	Ties: 1907, 1944, 1965
Feb–Dec 1917 11-Month	45.5°F (7.5°C)	46.1°F (7.8°C)	-0.6°F (-0.3°C)	33rd Coolest	Coolest since: 1916	1955
	45.5°F (7.5°C)	46.1°F (7.8°C)	-0.6°F (-0.3°C)	96th Warmest	Warmest since: 1915	2015
	Ties: 1978, 2011
Jan–Dec 1917 12-Month	43.5°F (6.4°C)	44.5°F (6.9°C)	-1.0°F (-0.5°C)	22nd Coolest	Coolest since: 1916	1916
	43.5°F (6.4°C)	44.5°F (6.9°C)	-1.0°F (-0.5°C)	107th Warmest	Warmest since: 1915	2015
	Ties: 1898, 1902, 1920, 1930, 1951
Jul 1916–Dec 1917 18-Month	44.2°F (6.8°C)	45.9°F (7.7°C)	-1.7°F (-0.9°C)	4th Coolest	Coolest since: 1916	1985
	44.2°F (6.8°C)	45.9°F (7.7°C)	-1.7°F (-0.9°C)	124th Warmest	Warmest since: 1915	2015
	Ties: 1912, 1955
Jan 1916–Dec 1917 24-Month	42.5°F (5.8°C)	44.4°F (6.9°C)	-1.9°F (-1.1°C)	1st Coolest	Coolest since: 1917	1917
Jan 1916–Dec 1917 24-Month	42.5°F (5.8°C)	44.4°F (6.9°C)	-1.9°F (-1.1°C)	127th Warmest	Warmest since: 1916	2015
Jan 1915–Dec 1917 36-Month	43.3°F (6.3°C)	44.4°F (6.9°C)	-1.1°F (-0.6°C)	2nd Coolest	Coolest since: 1913	1913
	43.3°F (6.3°C)	44.4°F (6.9°C)	-1.1°F (-0.6°C)	125th Warmest	Warmest since: 1916	2016
	Ties: 1918, 1950, 1957
Jan 1914–Dec 1917 48-Month	43.6°F (6.4°C)	44.4°F (6.9°C)	-0.8°F (-0.5°C)	9th Coolest	Coolest since: 1916	1913, 1914, 1919
	43.6°F (6.4°C)	44.4°F (6.9°C)	-0.8°F (-0.5°C)	117th Warmest	Warmest since: 1915	2016, 2017
	Ties: 1898, 1899, 1911, 1923, 1924, 1930, 1932, 1957
Jan 1913–Dec 1917 60-Month	43.5°F (6.4°C)	44.4°F (6.9°C)	-0.9°F (-0.5°C)	4th Coolest	Coolest since: 1916	1913
	43.5°F (6.4°C)	44.4°F (6.9°C)	-0.9°F (-0.5°C)	121st Warmest	Warmest since: 1915	2018
	Ties: 1899, 1912, 1914, 1923, 1952

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