Statewide Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Delaware

Average Temperature Rankings, April 1939

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Warmest/Coolest Since	Record
April 1939 1-Month	51.0°F (10.6°C)	52.0°F (11.1°C)	-1.0°F (-0.5°C)	36th Coolest	Coolest since: 1936	1907
	51.0°F (10.6°C)	52.0°F (11.1°C)	-1.0°F (-0.5°C)	94th Warmest	Warmest since: 1938	2017
	Ties: 1983, 2007
Mar–Apr 1939 2-Month	47.2°F (8.4°C)	47.4°F (8.6°C)	-0.2°F (-0.2°C)	58th Coolest	Coolest since: 1937	1940
	47.2°F (8.4°C)	47.4°F (8.6°C)	-0.2°F (-0.2°C)	72nd Warmest	Warmest since: 1938	1921
	Ties: 1951, 2005
Feb–Apr 1939 3-Month	44.8°F (7.1°C)	43.0°F (6.1°C)	1.8°F (1.0°C)	90th Coolest	Coolest since: 1937	1934
Feb–Apr 1939 3-Month	44.8°F (7.1°C)	43.0°F (6.1°C)	1.8°F (1.0°C)	40th Warmest	Warmest since: 1938	2012
Jan–Apr 1939 4-Month	42.2°F (5.7°C)	40.6°F (4.8°C)	1.6°F (0.9°C)	92nd Coolest	Coolest since: 1937	1940
Jan–Apr 1939 4-Month	42.2°F (5.7°C)	40.6°F (4.8°C)	1.6°F (0.9°C)	38th Warmest	Warmest since: 1938	2023
Dec 1938–Apr 1939 5-Month	41.0°F (5.0°C)	39.7°F (4.3°C)	1.3°F (0.7°C)	85th Coolest	Coolest since: 1936	1904
	41.0°F (5.0°C)	39.7°F (4.3°C)	1.3°F (0.7°C)	44th Warmest	Warmest since: 1938	2012
	Ties: 1929
Nov 1938–Apr 1939 6-Month	42.2°F (5.7°C)	40.7°F (4.8°C)	1.5°F (0.9°C)	92nd Coolest	Coolest since: 1938	1904
	42.2°F (5.7°C)	40.7°F (4.8°C)	1.5°F (0.9°C)	37th Warmest	Warmest since: 1932	2012
	Ties: 1950, 2005
Oct 1938–Apr 1939 7-Month	44.2°F (6.8°C)	43.0°F (6.1°C)	1.2°F (0.7°C)	85th Coolest	Coolest since: 1938	1904
	44.2°F (6.8°C)	43.0°F (6.1°C)	1.2°F (0.7°C)	44th Warmest	Warmest since: 1932	2012
	Ties: 2005
Sep 1938–Apr 1939 8-Month	46.9°F (8.3°C)	46.0°F (7.8°C)	0.9°F (0.5°C)	82nd Coolest	Coolest since: 1938	1918
	46.9°F (8.3°C)	46.0°F (7.8°C)	0.9°F (0.5°C)	47th Warmest	Warmest since: 1937	2012
	Ties: 1937, 1947, 1955, 1960
Aug 1938–Apr 1939 9-Month	50.1°F (10.1°C)	49.1°F (9.5°C)	1.0°F (0.6°C)	87th Coolest	Coolest since: 1938	1918
	50.1°F (10.1°C)	49.1°F (9.5°C)	1.0°F (0.6°C)	42nd Warmest	Warmest since: 1937	2017
	Ties: 1933, 1937, 1952, 1953, 1983
Jul 1938–Apr 1939 10-Month	52.7°F (11.5°C)	51.8°F (11.0°C)	0.9°F (0.5°C)	89th Coolest	Coolest since: 1938	1918
	52.7°F (11.5°C)	51.8°F (11.0°C)	0.9°F (0.5°C)	40th Warmest	Warmest since: 1932	2012, 2017
	Ties: 1952, 1983, 1986, 1997
Jun 1938–Apr 1939 11-Month	54.3°F (12.4°C)	53.5°F (11.9°C)	0.8°F (0.5°C)	89th Coolest	Coolest since: 1938	1904
	54.3°F (12.4°C)	53.5°F (11.9°C)	0.8°F (0.5°C)	40th Warmest	Warmest since: 1932	2012
	Ties: 1942, 1952, 1957, 1986, 2003
May 1938–Apr 1939 12-Month	54.8°F (12.7°C)	54.2°F (12.3°C)	0.6°F (0.4°C)	80th Coolest	Coolest since: 1938	1918
	54.8°F (12.7°C)	54.2°F (12.3°C)	0.6°F (0.4°C)	49th Warmest	Warmest since: 1937	2012
	Ties: 1901, 1919, 1933, 1957, 1989, 2014
Nov 1937–Apr 1939 18-Month	50.5°F (10.3°C)	49.7°F (9.8°C)	0.8°F (0.5°C)	88th Coolest	Coolest since: 1938	1905
	50.5°F (10.3°C)	49.7°F (9.8°C)	0.8°F (0.5°C)	40th Warmest	Warmest since: 1933	2017
	Ties: 1984
May 1937–Apr 1939 24-Month	54.6°F (12.6°C)	54.2°F (12.3°C)	0.4°F (0.3°C)	75th Coolest	Coolest since: 1937	1905
	54.6°F (12.6°C)	54.2°F (12.3°C)	0.4°F (0.3°C)	53rd Warmest	Warmest since: 1938	2017
	Ties: 1945, 1973, 1984, 1997, 2015
May 1936–Apr 1939 36-Month	54.8°F (12.7°C)	54.2°F (12.3°C)	0.6°F (0.4°C)	81st Coolest	Coolest since: 1938	1906
	54.8°F (12.7°C)	54.2°F (12.3°C)	0.6°F (0.4°C)	46th Warmest	Warmest since: 1934	2021
	Ties: 1952, 1956, 1989, 1994
May 1935–Apr 1939 48-Month	54.2°F (12.3°C)	54.2°F (12.3°C)	0.0°F (0.0°C)	57th Coolest	Coolest since: 1938	1905
	54.2°F (12.3°C)	54.2°F (12.3°C)	0.0°F (0.0°C)	69th Warmest	Warmest since: 1935	2019, 2020, 2022, 2023
	Ties: 1915, 1940, 1944
May 1934–Apr 1939 60-Month	54.2°F (12.3°C)	54.2°F (12.3°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1938	1908
	54.2°F (12.3°C)	54.2°F (12.3°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 1936	2020
	Ties: 1924, 1959, 1961

Citing This Page

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