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 1927

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1927 1-Month	22.2°F (-5.4°C)	28.1°F (-2.2°C)	-5.9°F (-3.2°C)	10th Coolest	Coolest since: 1924	1990
December 1927 1-Month	22.2°F (-5.4°C)	28.1°F (-2.2°C)	-5.9°F (-3.2°C)	119th Warmest	Warmest since: 1926	1917
Nov–Dec 1927 2-Month	30.0°F (-1.1°C)	31.4°F (-0.3°C)	-1.4°F (-0.8°C)	34th Coolest	Coolest since: 1924	1985
	30.0°F (-1.1°C)	31.4°F (-0.3°C)	-1.4°F (-0.8°C)	95th Warmest	Warmest since: 1926	1917
	Ties: 1928, 2009
Oct–Dec 1927 3-Month	35.5°F (1.9°C)	36.2°F (2.3°C)	-0.7°F (-0.4°C)	38th Coolest	Coolest since: 1924	1985
	35.5°F (1.9°C)	36.2°F (2.3°C)	-0.7°F (-0.4°C)	91st Warmest	Warmest since: 1926	1917
	Ties: 1895, 1908, 1920
Sep–Dec 1927 4-Month	40.0°F (4.4°C)	41.1°F (5.1°C)	-1.1°F (-0.7°C)	27th Coolest	Coolest since: 1924	1985
	40.0°F (4.4°C)	41.1°F (5.1°C)	-1.1°F (-0.7°C)	102nd Warmest	Warmest since: 1926	1917
	Ties: 1896
Aug–Dec 1927 5-Month	44.5°F (6.9°C)	45.5°F (7.5°C)	-1.0°F (-0.6°C)	23rd Coolest	Coolest since: 1924	1985
	44.5°F (6.9°C)	45.5°F (7.5°C)	-1.0°F (-0.6°C)	106th Warmest	Warmest since: 1926	1917, 2014
	Ties: 1896, 1928, 1946, 1955, 1959, 1961, 1982
Jul–Dec 1927 6-Month	47.8°F (8.8°C)	48.6°F (9.2°C)	-0.8°F (-0.4°C)	29th Coolest	Coolest since: 1924	1985
	47.8°F (8.8°C)	48.6°F (9.2°C)	-0.8°F (-0.4°C)	100th Warmest	Warmest since: 1926	2014
	Ties: 1931, 1935, 1970
Jun–Dec 1927 7-Month	49.2°F (9.6°C)	49.8°F (9.9°C)	-0.6°F (-0.3°C)	35th Coolest	Coolest since: 1924	1916
	49.2°F (9.6°C)	49.8°F (9.9°C)	-0.6°F (-0.3°C)	94th Warmest	Warmest since: 1926	2021
	Ties: 1931, 1956, 1968
May–Dec 1927 8-Month	48.9°F (9.4°C)	49.8°F (9.9°C)	-0.9°F (-0.5°C)	21st Coolest	Coolest since: 1924	1916
	48.9°F (9.4°C)	49.8°F (9.9°C)	-0.9°F (-0.5°C)	108th Warmest	Warmest since: 1926	2021
	Ties: 1903, 1951, 1983, 1993
Apr–Dec 1927 9-Month	48.0°F (8.9°C)	49.0°F (9.4°C)	-1.0°F (-0.5°C)	20th Coolest	Coolest since: 1920	1916
	48.0°F (8.9°C)	49.0°F (9.4°C)	-1.0°F (-0.5°C)	109th Warmest	Warmest since: 1926	2021
	Ties: 1975, 1983
Mar–Dec 1927 10-Month	46.7°F (8.2°C)	47.7°F (8.7°C)	-1.0°F (-0.5°C)	23rd Coolest	Coolest since: 1924	1916
	46.7°F (8.2°C)	47.7°F (8.7°C)	-1.0°F (-0.5°C)	106th Warmest	Warmest since: 1926	2015
	Ties: 1913, 1924, 1978
Feb–Dec 1927 11-Month	45.3°F (7.4°C)	46.1°F (7.8°C)	-0.8°F (-0.4°C)	26th Coolest	Coolest since: 1923	1955
	45.3°F (7.4°C)	46.1°F (7.8°C)	-0.8°F (-0.4°C)	103rd Warmest	Warmest since: 1926	2015
	Ties: 1896, 1923, 1956
Jan–Dec 1927 12-Month	43.7°F (6.5°C)	44.4°F (6.9°C)	-0.7°F (-0.4°C)	28th Coolest	Coolest since: 1922	1916
	43.7°F (6.5°C)	44.4°F (6.9°C)	-0.7°F (-0.4°C)	101st Warmest	Warmest since: 1926	2015
	Ties: 1935, 1950, 1971
Jul 1926–Dec 1927 18-Month	45.3°F (7.4°C)	45.8°F (7.7°C)	-0.5°F (-0.3°C)	28th Coolest	Coolest since: 1922	1985
	45.3°F (7.4°C)	45.8°F (7.7°C)	-0.5°F (-0.3°C)	100th Warmest	Warmest since: 1926	2015
	Ties: 1930, 1933, 1957
Jan 1926–Dec 1927 24-Month	44.9°F (7.2°C)	44.5°F (6.9°C)	0.4°F (0.3°C)	80th Coolest	Coolest since: 1925	1917
	44.9°F (7.2°C)	44.5°F (6.9°C)	0.4°F (0.3°C)	48th Warmest	Warmest since: 1926	2015
	Ties: 1942, 1953, 1962
Jan 1925–Dec 1927 36-Month	45.2°F (7.3°C)	44.4°F (6.9°C)	0.8°F (0.4°C)	93rd Coolest	Coolest since: 1926	1913
	45.2°F (7.3°C)	44.4°F (6.9°C)	0.8°F (0.4°C)	34th Warmest	Warmest since: 1926	2016
	Ties: 1926, 1934, 1967, 1968, 1993, 2012
Jan 1924–Dec 1927 48-Month	44.8°F (7.1°C)	44.4°F (6.9°C)	0.4°F (0.2°C)	77th Coolest	Coolest since: 1925	1913, 1914, 1919
	44.8°F (7.1°C)	44.4°F (6.9°C)	0.4°F (0.2°C)	49th Warmest	Warmest since: 1926	2016, 2017
	Ties: 1935, 1960, 1963, 1970
Jan 1923–Dec 1927 60-Month	44.7°F (7.1°C)	44.4°F (6.9°C)	0.3°F (0.2°C)	72nd Coolest	Coolest since: 1926	1913
	44.7°F (7.1°C)	44.4°F (6.9°C)	0.3°F (0.2°C)	53rd Warmest	Warmest to Date	2018
	Ties: 1939, 1963, 1968, 1983

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings