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 1980

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Record Coolest

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1980 1-Month	70.9°F (21.6°C)	67.4°F (19.7°C)	3.5°F (1.9°C)	115th Coolest	Coolest since: 1979	1917
	70.9°F (21.6°C)	67.4°F (19.7°C)	3.5°F (1.9°C)	14th Warmest	Warmest since: 1970	2018
	Ties: 1970
Aug–Sep 1980 2-Month	74.0°F (23.3°C)	70.6°F (21.4°C)	3.4°F (1.9°C)	122nd Coolest	Coolest since: 1979	1927, 1963
	74.0°F (23.3°C)	70.6°F (21.4°C)	3.4°F (1.9°C)	7th Warmest	Warmest since: 1900	2018
	Ties: 2019
Jul–Sep 1980 3-Month	75.0°F (23.9°C)	72.2°F (22.3°C)	2.8°F (1.6°C)	118th Coolest	Coolest since: 1979	1909
	75.0°F (23.9°C)	72.2°F (22.3°C)	2.8°F (1.6°C)	11th Warmest	Warmest since: 1900	2016
	Ties: 2022
Jun–Sep 1980 4-Month	73.5°F (23.1°C)	71.9°F (22.2°C)	1.6°F (0.9°C)	107th Coolest	Coolest since: 1979	1927
	73.5°F (23.1°C)	71.9°F (22.2°C)	1.6°F (0.9°C)	22nd Warmest	Warmest since: 1973	2010
	Ties: 1898, 1931, 1993, 1995, 2006
May–Sep 1980 5-Month	71.6°F (22.0°C)	69.9°F (21.1°C)	1.7°F (0.9°C)	106th Coolest	Coolest since: 1979	1924, 1927
	71.6°F (22.0°C)	69.9°F (21.1°C)	1.7°F (0.9°C)	23rd Warmest	Warmest since: 1959	2010
	Ties: 1993
Apr–Sep 1980 6-Month	68.8°F (20.4°C)	66.9°F (19.4°C)	1.9°F (1.0°C)	110th Coolest	Coolest since: 1979	1907
	68.8°F (20.4°C)	66.9°F (19.4°C)	1.9°F (1.0°C)	19th Warmest	Warmest since: 1959	2010
	Ties: 2020
Mar–Sep 1980 7-Month	64.7°F (18.2°C)	63.5°F (17.5°C)	1.2°F (0.7°C)	98th Coolest	Coolest since: 1979	1924
	64.7°F (18.2°C)	63.5°F (17.5°C)	1.2°F (0.7°C)	31st Warmest	Warmest since: 1977	2010
	Ties: 2005
Feb–Sep 1980 8-Month	60.4°F (15.8°C)	59.8°F (15.4°C)	0.6°F (0.4°C)	75th Coolest	Coolest since: 1979	1907
	60.4°F (15.8°C)	59.8°F (15.4°C)	0.6°F (0.4°C)	54th Warmest	Warmest since: 1977	2012
	Ties: 1944, 1989, 1997
Jan–Sep 1980 9-Month	57.4°F (14.1°C)	56.9°F (13.8°C)	0.5°F (0.3°C)	73rd Coolest	Coolest since: 1979	1940
	57.4°F (14.1°C)	56.9°F (13.8°C)	0.5°F (0.3°C)	56th Warmest	Warmest since: 1977	2012
	Ties: 1906, 1937, 1942, 1974, 1977
Dec 1979–Sep 1980 10-Month	55.5°F (13.1°C)	54.8°F (12.7°C)	0.7°F (0.4°C)	78th Coolest	Coolest since: 1979	1904
	55.5°F (13.1°C)	54.8°F (12.7°C)	0.7°F (0.4°C)	50th Warmest	Warmest since: 1976	2012
	Ties: 1937, 1938
Nov 1979–Sep 1980 11-Month	55.0°F (12.8°C)	54.0°F (12.2°C)	1.0°F (0.6°C)	89th Coolest	Coolest since: 1979	1904
	55.0°F (12.8°C)	54.0°F (12.2°C)	1.0°F (0.6°C)	39th Warmest	Warmest since: 1976	2012
	Ties: 1986, 1989, 1990, 1993
Oct 1979–Sep 1980 12-Month	55.1°F (12.8°C)	54.2°F (12.3°C)	0.9°F (0.5°C)	86th Coolest	Coolest since: 1979	1904
	55.1°F (12.8°C)	54.2°F (12.3°C)	0.9°F (0.5°C)	42nd Warmest	Warmest since: 1976	2012
	Ties: 1898, 1930, 1973, 1974, 1987
Apr 1979–Sep 1980 18-Month	58.8°F (14.9°C)	58.4°F (14.7°C)	0.4°F (0.2°C)	71st Coolest	Coolest since: 1979	1918
	58.8°F (14.9°C)	58.4°F (14.7°C)	0.4°F (0.2°C)	57th Warmest	Warmest since: 1976	2012
	Ties: 1937, 1997
Oct 1978–Sep 1980 24-Month	54.3°F (12.4°C)	54.2°F (12.3°C)	0.1°F (0.1°C)	55th Coolest	Coolest since: 1979	1905
	54.3°F (12.4°C)	54.2°F (12.3°C)	0.1°F (0.1°C)	72nd Warmest	Warmest since: 1977	2017
	Ties: 1929, 1945, 1972, 1981
Oct 1977–Sep 1980 36-Month	53.8°F (12.1°C)	54.2°F (12.3°C)	-0.4°F (-0.2°C)	33rd Coolest	Coolest since: 1979	1905, 1918
	53.8°F (12.1°C)	54.2°F (12.3°C)	-0.4°F (-0.2°C)	93rd Warmest	Warmest since: 1978	2018
	Ties: 1899, 1910, 1911, 1937, 1940, 1962, 1982
Oct 1976–Sep 1980 48-Month	53.7°F (12.1°C)	54.2°F (12.3°C)	-0.5°F (-0.2°C)	28th Coolest	Coolest since: 1971	1905
	53.7°F (12.1°C)	54.2°F (12.3°C)	-0.5°F (-0.2°C)	97th Warmest	Warmest since: 1979	2019
	Ties: 1911, 1941, 1981, 1982
Oct 1975–Sep 1980 60-Month	54.1°F (12.3°C)	54.1°F (12.3°C)	0.0°F (0.0°C)	48th Coolest	Coolest since: 1979	1908
	54.1°F (12.3°C)	54.1°F (12.3°C)	0.0°F (0.0°C)	76th Warmest	Warmest since: 1978	2020
	Ties: 1901, 1931, 1942, 1943, 1973, 1983, 1984

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings