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 1978

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1978 1-Month	22.5°F (-5.3°C)	28.1°F (-2.2°C)	-5.6°F (-3.1°C)	11th Coolest	Coolest since: 1948	1990
December 1978 1-Month	22.5°F (-5.3°C)	28.1°F (-2.2°C)	-5.6°F (-3.1°C)	118th Warmest	Warmest since: 1977	1917
Nov–Dec 1978 2-Month	26.5°F (-3.1°C)	31.3°F (-0.4°C)	-4.8°F (-2.7°C)	4th Coolest	Coolest since: 1919	1985
Nov–Dec 1978 2-Month	26.5°F (-3.1°C)	31.3°F (-0.4°C)	-4.8°F (-2.7°C)	125th Warmest	Warmest since: 1977	1917
Oct–Dec 1978 3-Month	33.3°F (0.7°C)	36.1°F (2.3°C)	-2.8°F (-1.6°C)	9th Coolest	Coolest since: 1948	1985
Oct–Dec 1978 3-Month	33.3°F (0.7°C)	36.1°F (2.3°C)	-2.8°F (-1.6°C)	120th Warmest	Warmest since: 1977	1917
Sep–Dec 1978 4-Month	38.5°F (3.6°C)	41.0°F (5.0°C)	-2.5°F (-1.4°C)	6th Coolest	Coolest since: 1924	1985
	38.5°F (3.6°C)	41.0°F (5.0°C)	-2.5°F (-1.4°C)	123rd Warmest	Warmest since: 1977	1917
	Ties: 1911, 1924
Aug–Dec 1978 5-Month	43.2°F (6.2°C)	45.5°F (7.5°C)	-2.3°F (-1.3°C)	6th Coolest	Coolest since: 1948	1985
	43.2°F (6.2°C)	45.5°F (7.5°C)	-2.3°F (-1.3°C)	123rd Warmest	Warmest since: 1977	1917, 2014
	Ties: 1912, 1924
Jul–Dec 1978 6-Month	46.6°F (8.1°C)	48.6°F (9.2°C)	-2.0°F (-1.1°C)	7th Coolest	Coolest since: 1948	1985
	46.6°F (8.1°C)	48.6°F (9.2°C)	-2.0°F (-1.1°C)	122nd Warmest	Warmest since: 1977	2014
	Ties: 1924
Jun–Dec 1978 7-Month	48.2°F (9.0°C)	49.7°F (9.8°C)	-1.5°F (-0.8°C)	11th Coolest	Coolest since: 1948	1916
Jun–Dec 1978 7-Month	48.2°F (9.0°C)	49.7°F (9.8°C)	-1.5°F (-0.8°C)	118th Warmest	Warmest since: 1977	2021
May–Dec 1978 8-Month	48.1°F (8.9°C)	49.8°F (9.9°C)	-1.7°F (-1.0°C)	6th Coolest	Coolest since: 1919	1916
	48.1°F (8.9°C)	49.8°F (9.9°C)	-1.7°F (-1.0°C)	123rd Warmest	Warmest since: 1977	2021
	Ties: 1984
Apr–Dec 1978 9-Month	47.5°F (8.6°C)	49.0°F (9.4°C)	-1.5°F (-0.8°C)	9th Coolest	Coolest since: 1955	1916
	47.5°F (8.6°C)	49.0°F (9.4°C)	-1.5°F (-0.8°C)	120th Warmest	Warmest since: 1977	2021
	Ties: 1919
Mar–Dec 1978 10-Month	46.7°F (8.2°C)	47.6°F (8.7°C)	-0.9°F (-0.5°C)	23rd Coolest	Coolest since: 1975	1916
	46.7°F (8.2°C)	47.6°F (8.7°C)	-0.9°F (-0.5°C)	106th Warmest	Warmest since: 1977	2015
	Ties: 1913, 1924, 1927
Feb–Dec 1978 11-Month	45.5°F (7.5°C)	46.1°F (7.8°C)	-0.6°F (-0.3°C)	33rd Coolest	Coolest since: 1975	1955
	45.5°F (7.5°C)	46.1°F (7.8°C)	-0.6°F (-0.3°C)	96th Warmest	Warmest since: 1977	2015
	Ties: 1917, 2011
Jan–Dec 1978 12-Month	44.3°F (6.8°C)	44.5°F (6.9°C)	-0.2°F (-0.1°C)	50th Coolest	Coolest since: 1976	1916
	44.3°F (6.8°C)	44.5°F (6.9°C)	-0.2°F (-0.1°C)	79th Warmest	Warmest since: 1977	2015
	Ties: 1901, 1954, 1969, 1976
Jul 1977–Dec 1978 18-Month	45.8°F (7.7°C)	45.9°F (7.7°C)	-0.1°F (0.0°C)	58th Coolest	Coolest since: 1976	1985
	45.8°F (7.7°C)	45.9°F (7.7°C)	-0.1°F (0.0°C)	70th Warmest	Warmest since: 1977	2015
	Ties: 1906, 1915, 1935, 1944, 1946, 1970, 1976, 2011
Jan 1977–Dec 1978 24-Month	44.5°F (6.9°C)	44.4°F (6.9°C)	0.1°F (0.0°C)	61st Coolest	Coolest since: 1977	1917
	44.5°F (6.9°C)	44.4°F (6.9°C)	0.1°F (0.0°C)	67th Warmest	Warmest since: 1977	2015
	Ties: 1905, 1907, 1938, 1977
Jan 1976–Dec 1978 36-Month	44.4°F (6.9°C)	44.4°F (6.9°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1977	1913
	44.4°F (6.9°C)	44.4°F (6.9°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1975	2016
	Ties: 1902, 1953, 1970, 1975
Jan 1975–Dec 1978 48-Month	44.2°F (6.8°C)	44.4°F (6.9°C)	-0.2°F (-0.1°C)	40th Coolest	Coolest since: 1972	1913, 1914, 1919
	44.2°F (6.8°C)	44.4°F (6.9°C)	-0.2°F (-0.1°C)	86th Warmest	Warmest since: 1977	2016, 2017
	Ties: 1906, 1908, 1945, 1946, 1948, 1958
Jan 1974–Dec 1978 60-Month	44.3°F (6.8°C)	44.4°F (6.9°C)	-0.1°F (-0.1°C)	47th Coolest	Coolest since: 1976	1913
	44.3°F (6.8°C)	44.4°F (6.9°C)	-0.1°F (-0.1°C)	78th Warmest	Warmest since: 1977	2018
	Ties: 1954, 1973, 1976, 1979

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings