Regional Rankings

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Month:

Region:

Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 1915

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1915 1-Month	28.1°F (-2.2°C)	28.1°F (-2.2°C)	0.0°F (0.0°C)	60th Coolest	Coolest since: 1914	1990
	28.1°F (-2.2°C)	28.1°F (-2.2°C)	0.0°F (0.0°C)	69th Warmest	Warmest since: 1910	1917
	Ties: 1897
Nov–Dec 1915 2-Month	30.6°F (-0.8°C)	31.4°F (-0.3°C)	-0.8°F (-0.5°C)	39th Coolest	Coolest since: 1914	1985
	30.6°F (-0.8°C)	31.4°F (-0.3°C)	-0.8°F (-0.5°C)	90th Warmest	Warmest since: 1913	1917
	Ties: 1918, 1945
Oct–Dec 1915 3-Month	36.0°F (2.2°C)	36.2°F (2.3°C)	-0.2°F (-0.1°C)	48th Coolest	Coolest since: 1914	1985
	36.0°F (2.2°C)	36.2°F (2.3°C)	-0.2°F (-0.1°C)	81st Warmest	Warmest since: 1910	1917
	Ties: 1964, 2007, 2019
Sep–Dec 1915 4-Month	40.4°F (4.7°C)	41.1°F (5.1°C)	-0.7°F (-0.4°C)	37th Coolest	Coolest since: 1914	1985
	40.4°F (4.7°C)	41.1°F (5.1°C)	-0.7°F (-0.4°C)	92nd Warmest	Warmest since: 1910	1917
	Ties: 1897, 1903, 1920, 1932, 1968
Aug–Dec 1915 5-Month	45.7°F (7.6°C)	45.5°F (7.5°C)	0.2°F (0.1°C)	63rd Coolest	Coolest since: 1914	1985
	45.7°F (7.6°C)	45.5°F (7.5°C)	0.2°F (0.1°C)	66th Warmest	Warmest since: 1907	1917, 2014
	Ties: 1969
Jul–Dec 1915 6-Month	48.4°F (9.1°C)	48.6°F (9.2°C)	-0.2°F (-0.1°C)	48th Coolest	Coolest since: 1914	1985
	48.4°F (9.1°C)	48.6°F (9.2°C)	-0.2°F (-0.1°C)	81st Warmest	Warmest since: 1910	2014
	Ties: 1920, 1986
Jun–Dec 1915 7-Month	49.3°F (9.6°C)	49.8°F (9.9°C)	-0.5°F (-0.3°C)	39th Coolest	Coolest since: 1914	1916
	49.3°F (9.6°C)	49.8°F (9.9°C)	-0.5°F (-0.3°C)	90th Warmest	Warmest since: 1910	2021
	Ties: 1920
May–Dec 1915 8-Month	49.2°F (9.6°C)	49.8°F (9.9°C)	-0.6°F (-0.3°C)	34th Coolest	Coolest since: 1914	1916
	49.2°F (9.6°C)	49.8°F (9.9°C)	-0.6°F (-0.3°C)	95th Warmest	Warmest since: 1910	2021
	Ties: 1932, 1946, 1968
Apr–Dec 1915 9-Month	49.0°F (9.4°C)	49.0°F (9.4°C)	0.0°F (0.0°C)	50th Coolest	Coolest since: 1914	1916
	49.0°F (9.4°C)	49.0°F (9.4°C)	0.0°F (0.0°C)	79th Warmest	Warmest since: 1910	2021
	Ties: 1901, 1923, 1956, 1965
Mar–Dec 1915 10-Month	48.0°F (8.9°C)	47.7°F (8.7°C)	0.3°F (0.2°C)	74th Coolest	Coolest since: 1914	1916
	48.0°F (8.9°C)	47.7°F (8.7°C)	0.3°F (0.2°C)	55th Warmest	Warmest since: 1910	2015
	Ties: 1906, 1918, 1953, 1957, 1962, 1969, 1977, 1991
Feb–Dec 1915 11-Month	46.7°F (8.2°C)	46.1°F (7.8°C)	0.6°F (0.4°C)	86th Coolest	Coolest since: 1914	1955
	46.7°F (8.2°C)	46.1°F (7.8°C)	0.6°F (0.4°C)	43rd Warmest	Warmest to Date	2015
	Ties: 1938, 1973, 1977, 1980, 1990, 2002
Jan–Dec 1915 12-Month	44.9°F (7.2°C)	44.5°F (6.9°C)	0.4°F (0.3°C)	81st Coolest	Coolest since: 1914	1916
	44.9°F (7.2°C)	44.5°F (6.9°C)	0.4°F (0.3°C)	48th Warmest	Warmest since: 1906	2015
	Ties: 1904, 1906, 1973, 1980, 1983, 2009, 2019
Jul 1914–Dec 1915 18-Month	45.8°F (7.7°C)	45.8°F (7.7°C)	0.0°F (0.0°C)	58th Coolest	Coolest since: 1914	1985
	45.8°F (7.7°C)	45.8°F (7.7°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 1907	2015
	Ties: 1906, 1935, 1944, 1946, 1970, 1976, 1978, 2011
Jan 1914–Dec 1915 24-Month	44.7°F (7.1°C)	44.4°F (6.9°C)	0.3°F (0.2°C)	71st Coolest	Coolest since: 1914	1917
	44.7°F (7.1°C)	44.4°F (6.9°C)	0.3°F (0.2°C)	57th Warmest	Warmest since: 1901	2015
	Ties: 1980, 1994, 2009, 2011
Jan 1913–Dec 1915 36-Month	44.1°F (6.7°C)	44.4°F (6.9°C)	-0.3°F (-0.2°C)	37th Coolest	Coolest since: 1914	1913
	44.1°F (6.7°C)	44.4°F (6.9°C)	-0.3°F (-0.2°C)	90th Warmest	Warmest since: 1908	2016
	Ties: 1933, 1937, 1944, 1948, 1955, 1971
Jan 1912–Dec 1915 48-Month	43.8°F (6.6°C)	44.4°F (6.9°C)	-0.6°F (-0.3°C)	20th Coolest	Coolest since: 1914	1913, 1914, 1919
	43.8°F (6.6°C)	44.4°F (6.9°C)	-0.6°F (-0.3°C)	106th Warmest	Warmest since: 1910	2016, 2017
	Ties: 1920, 1950
Jan 1911–Dec 1915 60-Month	43.6°F (6.4°C)	44.4°F (6.9°C)	-0.8°F (-0.5°C)	10th Coolest	Coolest since: 1914	1913
	43.6°F (6.4°C)	44.4°F (6.9°C)	-0.8°F (-0.5°C)	115th Warmest	Warmest since: 1911	2018
	Ties: 1919, 1924

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings