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 1930 Average Temperature Rankings

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
April 1930 1-Month	47.6°F (8.7°C)	43.2°F (6.2°C)	4.4°F	124th Coolest	Coolest since: 1929	1975
April 1930 1-Month	47.6°F (8.7°C)	43.2°F (6.2°C)	4.4°F	7th Warmest	Warmest since: 1926	1934
Mar–Apr 1930 2-Month	42.8°F (6.0°C)	39.9°F (4.4°C)	2.9°F	118th Coolest	Coolest since: 1929	1917
Mar–Apr 1930 2-Month	42.8°F (6.0°C)	39.9°F (4.4°C)	2.9°F	13th Warmest	Warmest since: 1926	1934
Feb–Apr 1930 3-Month	40.3°F (4.6°C)	37.0°F (2.8°C)	3.3°F	123rd Coolest	Coolest since: 1929	1917
Feb–Apr 1930 3-Month	40.3°F (4.6°C)	37.0°F (2.8°C)	3.3°F	8th Warmest	Warmest since: 1926	1934
Jan–Apr 1930 4-Month	33.9°F (1.1°C)	34.5°F (1.4°C)	-0.6°F	43rd Coolest	Coolest since: 1929	1922
	33.9°F (1.1°C)	34.5°F (1.4°C)	-0.6°F	88th Warmest	Warmest since: 1928	1934
	Ties: 1898, 1902, 1907, 1909, 1912
Dec 1929–Apr 1930 5-Month	33.8°F (1.0°C)	33.4°F (0.8°C)	0.4°F	69th Coolest	Coolest since: 1929	1917
Dec 1929–Apr 1930 5-Month	33.8°F (1.0°C)	33.4°F (0.8°C)	0.4°F	61st Warmest	Warmest since: 1926	1934
Nov 1929–Apr 1930 6-Month	33.6°F (0.9°C)	33.7°F (0.9°C)	-0.1°F	56th Coolest	Coolest since: 1929	1917
Nov 1929–Apr 1930 6-Month	33.6°F (0.9°C)	33.7°F (0.9°C)	-0.1°F	74th Warmest	Warmest since: 1927	1934
Oct 1929–Apr 1930 7-Month	35.6°F (2.0°C)	35.5°F (1.9°C)	0.1°F	57th Coolest	Coolest since: 1929	1917
	35.6°F (2.0°C)	35.5°F (1.9°C)	0.1°F	73rd Warmest	Warmest since: 1927	1934
	Ties: 1919, 1925
Sep 1929–Apr 1930 8-Month	37.9°F (3.3°C)	38.1°F (3.4°C)	-0.2°F	49th Coolest	Coolest since: 1929	1917
Sep 1929–Apr 1930 8-Month	37.9°F (3.3°C)	38.1°F (3.4°C)	-0.2°F	81st Warmest	Warmest since: 1926	1934
Aug 1929–Apr 1930 9-Month	41.0°F (5.0°C)	40.9°F (4.9°C)	0.1°F	54th Coolest	Coolest since: 1929	1917
Aug 1929–Apr 1930 9-Month	41.0°F (5.0°C)	40.9°F (4.9°C)	0.1°F	76th Warmest	Warmest since: 1926	1934
Jul 1929–Apr 1930 10-Month	43.4°F (6.3°C)	43.3°F (6.3°C)	0.1°F	58th Coolest	Coolest since: 1929	1917
Jul 1929–Apr 1930 10-Month	43.4°F (6.3°C)	43.3°F (6.3°C)	0.1°F	72nd Warmest	Warmest since: 1926	2015
Jun 1929–Apr 1930 11-Month	44.5°F (6.9°C)	44.6°F (7.0°C)	-0.1°F	50th Coolest	Coolest since: 1929	1917
Jun 1929–Apr 1930 11-Month	44.5°F (6.9°C)	44.6°F (7.0°C)	-0.1°F	80th Warmest	Warmest since: 1927	2015
May 1929–Apr 1930 12-Month	45.0°F (7.2°C)	45.1°F (7.3°C)	-0.1°F	51st Coolest	Coolest since: 1929	1917
May 1929–Apr 1930 12-Month	45.0°F (7.2°C)	45.1°F (7.3°C)	-0.1°F	79th Warmest	Warmest since: 1927	2015
Nov 1928–Apr 1930 18-Month	39.9°F (4.4°C)	41.3°F (5.2°C)	-1.4°F	9th Coolest	Coolest since: 1923	1917
	39.9°F (4.4°C)	41.3°F (5.2°C)	-1.4°F	120th Warmest	Warmest since: 1929	2016
	Ties: 1922
May 1928–Apr 1930 24-Month	44.2°F (6.8°C)	45.1°F (7.3°C)	-0.9°F	21st Coolest	Coolest since: 1929	1917
	44.2°F (6.8°C)	45.1°F (7.3°C)	-0.9°F	108th Warmest	Warmest since: 1928	2016
	Ties: 1903
May 1927–Apr 1930 36-Month	44.3°F (6.8°C)	45.1°F (7.3°C)	-0.8°F	18th Coolest	Coolest since: 1924	1917
May 1927–Apr 1930 36-Month	44.3°F (6.8°C)	45.1°F (7.3°C)	-0.8°F	110th Warmest	Warmest since: 1929	2016
May 1926–Apr 1930 48-Month	44.5°F (6.9°C)	45.0°F (7.2°C)	-0.5°F	26th Coolest	Coolest since: 1925	1913
May 1926–Apr 1930 48-Month	44.5°F (6.9°C)	45.0°F (7.2°C)	-0.5°F	101st Warmest	Warmest since: 1929	2016, 2018
May 1925–Apr 1930 60-Month	45.0°F (7.2°C)	45.0°F (7.2°C)	0.0°F	47th Coolest	Coolest since: 1926	1917
May 1925–Apr 1930 60-Month	45.0°F (7.2°C)	45.0°F (7.2°C)	0.0°F	79th Warmest	Warmest since: 1929	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 1930 Average Temperature Rankings

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