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, September 1938

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1938 1-Month	66.0°F (18.9°C)	67.4°F (19.7°C)	-1.4°F (-0.8°C)	24th Coolest	Coolest since: 1937	1917
	66.0°F (18.9°C)	67.4°F (19.7°C)	-1.4°F (-0.8°C)	105th Warmest	Warmest since: 1936	2018
	Ties: 1981, 1990, 1994
Aug–Sep 1938 2-Month	71.0°F (21.7°C)	70.6°F (21.4°C)	0.4°F (0.3°C)	67th Coolest	Coolest since: 1937	1927, 1963
	71.0°F (21.7°C)	70.6°F (21.4°C)	0.4°F (0.3°C)	62nd Warmest	Warmest since: 1936	2018
	Ties: 1971, 1985
Jul–Sep 1938 3-Month	72.7°F (22.6°C)	72.2°F (22.3°C)	0.5°F (0.3°C)	78th Coolest	Coolest since: 1937	1909
	72.7°F (22.6°C)	72.2°F (22.3°C)	0.5°F (0.3°C)	51st Warmest	Warmest since: 1936	2016
	Ties: 1934
Jun–Sep 1938 4-Month	72.0°F (22.2°C)	71.9°F (22.2°C)	0.1°F (0.0°C)	58th Coolest	Coolest since: 1937	1927
	72.0°F (22.2°C)	71.9°F (22.2°C)	0.1°F (0.0°C)	71st Warmest	Warmest since: 1936	2010
	Ties: 1932, 1966, 1996
May–Sep 1938 5-Month	69.6°F (20.9°C)	69.9°F (21.1°C)	-0.3°F (-0.2°C)	41st Coolest	Coolest since: 1935	1924, 1927
	69.6°F (20.9°C)	69.9°F (21.1°C)	-0.3°F (-0.2°C)	88th Warmest	Warmest since: 1937	2010
	Ties: 1948, 1966, 1971, 1978, 1984
Apr–Sep 1938 6-Month	67.1°F (19.5°C)	66.9°F (19.4°C)	0.2°F (0.1°C)	58th Coolest	Coolest since: 1937	1907
	67.1°F (19.5°C)	66.9°F (19.4°C)	0.2°F (0.1°C)	71st Warmest	Warmest since: 1936	2010
	Ties: 1922, 1947, 1968
Mar–Sep 1938 7-Month	64.1°F (17.8°C)	63.5°F (17.5°C)	0.6°F (0.3°C)	78th Coolest	Coolest since: 1937	1924
	64.1°F (17.8°C)	63.5°F (17.5°C)	0.6°F (0.3°C)	51st Warmest	Warmest since: 1936	2010
	Ties: 1976
Feb–Sep 1938 8-Month	60.9°F (16.1°C)	59.8°F (15.4°C)	1.1°F (0.7°C)	91st Coolest	Coolest since: 1937	1907
	60.9°F (16.1°C)	59.8°F (15.4°C)	1.1°F (0.7°C)	38th Warmest	Warmest since: 1930	2012
	Ties: 2013
Jan–Sep 1938 9-Month	57.8°F (14.3°C)	56.9°F (13.8°C)	0.9°F (0.5°C)	86th Coolest	Coolest since: 1937	1940
	57.8°F (14.3°C)	56.9°F (13.8°C)	0.9°F (0.5°C)	43rd Warmest	Warmest since: 1933	2012
	Ties: 1945, 1993
Dec 1937–Sep 1938 10-Month	55.5°F (13.1°C)	54.8°F (12.7°C)	0.7°F (0.4°C)	78th Coolest	Coolest since: 1937	1904
	55.5°F (13.1°C)	54.8°F (12.7°C)	0.7°F (0.4°C)	50th Warmest	Warmest since: 1937	2012
	Ties: 1937, 1980
Nov 1937–Sep 1938 11-Month	54.5°F (12.5°C)	54.0°F (12.2°C)	0.5°F (0.3°C)	74th Coolest	Coolest since: 1937	1904
	54.5°F (12.5°C)	54.0°F (12.2°C)	0.5°F (0.3°C)	54th Warmest	Warmest since: 1933	2012
	Ties: 1900, 1959
Oct 1937–Sep 1938 12-Month	54.4°F (12.4°C)	54.2°F (12.3°C)	0.2°F (0.1°C)	58th Coolest	Coolest since: 1936	1904
	54.4°F (12.4°C)	54.2°F (12.3°C)	0.2°F (0.1°C)	70th Warmest	Warmest since: 1937	2012
	Ties: 1945, 1992, 2001
Apr 1937–Sep 1938 18-Month	58.5°F (14.7°C)	58.4°F (14.7°C)	0.1°F (0.0°C)	53rd Coolest	Coolest since: 1936	1918
	58.5°F (14.7°C)	58.4°F (14.7°C)	0.1°F (0.0°C)	75th Warmest	Warmest since: 1937	2012
	Ties: 1906, 1946, 1971, 1972, 1996
Oct 1936–Sep 1938 24-Month	54.5°F (12.5°C)	54.2°F (12.3°C)	0.3°F (0.2°C)	67th Coolest	Coolest since: 1937	1905
	54.5°F (12.5°C)	54.2°F (12.3°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 1933	2017
	Ties: 1931, 1951
Oct 1935–Sep 1938 36-Month	54.1°F (12.3°C)	54.2°F (12.3°C)	-0.1°F (0.0°C)	51st Coolest	Coolest since: 1937	1905, 1918
	54.1°F (12.3°C)	54.2°F (12.3°C)	-0.1°F (0.0°C)	75th Warmest	Warmest since: 1934	2018
	Ties: 1898, 1948, 1960, 1981
Oct 1934–Sep 1938 48-Month	53.9°F (12.2°C)	54.2°F (12.3°C)	-0.3°F (-0.1°C)	38th Coolest	Coolest since: 1937	1905
	53.9°F (12.2°C)	54.2°F (12.3°C)	-0.3°F (-0.1°C)	87th Warmest	Warmest since: 1935	2019
	Ties: 1903, 1914, 1915, 1921, 1925, 1961, 1972, 1984
Oct 1933–Sep 1938 60-Month	53.8°F (12.1°C)	54.1°F (12.3°C)	-0.3°F (-0.2°C)	33rd Coolest	Coolest since: 1930	1908
	53.8°F (12.1°C)	54.1°F (12.3°C)	-0.3°F (-0.2°C)	91st Warmest	Warmest since: 1937	2020
	Ties: 1914, 1915, 1962, 1972

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings