Climate at a Glance | Regional Rankings | National Centers for Environmental Information (NCEI)

Regional Rankings

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Please note, 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.

Northwest

April 1966 Average Temperature Rankings

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
April 1966 1-Month	43.6°F (6.4°C)	43.2°F (6.2°C)	0.4°F	69th Coolest	Coolest since: 1964	1975
April 1966 1-Month	43.6°F (6.4°C)	43.2°F (6.2°C)	0.4°F	62nd Warmest	Warmest since: 1965	1934
Mar–Apr 1966 2-Month	40.1°F (4.5°C)	39.9°F (4.4°C)	0.2°F	72nd Coolest	Coolest since: 1965	1917
Mar–Apr 1966 2-Month	40.1°F (4.5°C)	39.9°F (4.4°C)	0.2°F	59th Warmest	Warmest since: 1959	1934
Feb–Apr 1966 3-Month	37.0°F (2.8°C)	37.0°F (2.8°C)	0.0°F	63rd Coolest	Coolest since: 1964	1917
	37.0°F (2.8°C)	37.0°F (2.8°C)	0.0°F	68th Warmest	Warmest since: 1965	1934
	Ties: 1957
Jan–Apr 1966 4-Month	35.1°F (1.7°C)	34.5°F (1.4°C)	0.6°F	73rd Coolest	Coolest since: 1964	1922
Jan–Apr 1966 4-Month	35.1°F (1.7°C)	34.5°F (1.4°C)	0.6°F	58th Warmest	Warmest since: 1965	1934
Dec 1965–Apr 1966 5-Month	33.9°F (1.1°C)	33.4°F (0.8°C)	0.5°F	73rd Coolest	Coolest since: 1964	1917
Dec 1965–Apr 1966 5-Month	33.9°F (1.1°C)	33.4°F (0.8°C)	0.5°F	57th Warmest	Warmest since: 1965	1934
Nov 1965–Apr 1966 6-Month	34.7°F (1.5°C)	33.7°F (0.9°C)	1.0°F	85th Coolest	Coolest since: 1965	1917
Nov 1965–Apr 1966 6-Month	34.7°F (1.5°C)	33.7°F (0.9°C)	1.0°F	45th Warmest	Warmest since: 1963	1934
Oct 1965–Apr 1966 7-Month	36.9°F (2.7°C)	35.5°F (1.9°C)	1.4°F	100th Coolest	Coolest since: 1965	1917
Oct 1965–Apr 1966 7-Month	36.9°F (2.7°C)	35.5°F (1.9°C)	1.4°F	30th Warmest	Warmest since: 1959	1934
Sep 1965–Apr 1966 8-Month	38.8°F (3.8°C)	38.1°F (3.4°C)	0.7°F	79th Coolest	Coolest since: 1965	1917
Sep 1965–Apr 1966 8-Month	38.8°F (3.8°C)	38.1°F (3.4°C)	0.7°F	51st Warmest	Warmest since: 1963	1934
Aug 1965–Apr 1966 9-Month	41.5°F (5.3°C)	40.9°F (4.9°C)	0.6°F	78th Coolest	Coolest since: 1965	1917
Aug 1965–Apr 1966 9-Month	41.5°F (5.3°C)	40.9°F (4.9°C)	0.6°F	52nd Warmest	Warmest since: 1963	1934
Jul 1965–Apr 1966 10-Month	43.8°F (6.6°C)	43.3°F (6.3°C)	0.5°F	73rd Coolest	Coolest since: 1965	1917
Jul 1965–Apr 1966 10-Month	43.8°F (6.6°C)	43.3°F (6.3°C)	0.5°F	57th Warmest	Warmest since: 1963	2015
Jun 1965–Apr 1966 11-Month	44.9°F (7.2°C)	44.6°F (7.0°C)	0.3°F	72nd Coolest	Coolest since: 1965	1917
Jun 1965–Apr 1966 11-Month	44.9°F (7.2°C)	44.6°F (7.0°C)	0.3°F	58th Warmest	Warmest since: 1963	2015
May 1965–Apr 1966 12-Month	45.2°F (7.3°C)	45.1°F (7.3°C)	0.1°F	58th Coolest	Coolest since: 1965	1917
May 1965–Apr 1966 12-Month	45.2°F (7.3°C)	45.1°F (7.3°C)	0.1°F	72nd Warmest	Warmest since: 1963	2015
Nov 1964–Apr 1966 18-Month	41.5°F (5.3°C)	41.3°F (5.2°C)	0.2°F	72nd Coolest	Coolest since: 1965	1917
Nov 1964–Apr 1966 18-Month	41.5°F (5.3°C)	41.3°F (5.2°C)	0.2°F	57th Warmest	Warmest since: 1964	2016
May 1964–Apr 1966 24-Month	44.9°F (7.2°C)	45.1°F (7.3°C)	-0.2°F	47th Coolest	Coolest since: 1965	1917
May 1964–Apr 1966 24-Month	44.9°F (7.2°C)	45.1°F (7.3°C)	-0.2°F	82nd Warmest	Warmest since: 1964	2016
May 1963–Apr 1966 36-Month	44.9°F (7.2°C)	45.1°F (7.3°C)	-0.2°F	39th Coolest	Coolest since: 1958	1917
May 1963–Apr 1966 36-Month	44.9°F (7.2°C)	45.1°F (7.3°C)	-0.2°F	89th Warmest	Warmest since: 1965	2016
May 1962–Apr 1966 48-Month	45.0°F (7.2°C)	45.0°F (7.2°C)	0.0°F	49th Coolest	Coolest since: 1965	1913
	45.0°F (7.2°C)	45.0°F (7.2°C)	0.0°F	78th Warmest	Warmest since: 1965	2016, 2018
	Ties: 1907, 1929, 1946, 1947, 1965
May 1961–Apr 1966 60-Month	45.0°F (7.2°C)	45.0°F (7.2°C)	0.0°F	47th Coolest	Coolest since: 1959	1917
May 1961–Apr 1966 60-Month	45.0°F (7.2°C)	45.0°F (7.2°C)	0.0°F	79th Warmest	Warmest since: 1965	2018, 2019

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NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2025, retrieved on April 1, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings

Climate at a Glance Regional Rankings

Regional Rankings

Northwest

April 1966 Average Temperature Rankings

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