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 1910

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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 1910 1-Month	68.8°F (20.4°C)	67.4°F (19.7°C)	1.4°F (0.7°C)	89th Coolest	Coolest since: 1909	1917
	68.8°F (20.4°C)	67.4°F (19.7°C)	1.4°F (0.7°C)	40th Warmest	Warmest since: 1906	2018
	Ties: 2022
Aug–Sep 1910 2-Month	70.3°F (21.3°C)	70.6°F (21.4°C)	-0.3°F (-0.1°C)	49th Coolest	Coolest since: 1909	1927, 1963
	70.3°F (21.3°C)	70.6°F (21.4°C)	-0.3°F (-0.1°C)	80th Warmest	Warmest since: 1906	2018
	Ties: 1912, 1951
Jul–Sep 1910 3-Month	72.1°F (22.3°C)	72.2°F (22.3°C)	-0.1°F (0.0°C)	48th Coolest	Coolest since: 1909	1909
	72.1°F (22.3°C)	72.2°F (22.3°C)	-0.1°F (0.0°C)	81st Warmest	Warmest since: 1906	2016
	Ties: 1896, 1915, 1951, 1958, 1965
Jun–Sep 1910 4-Month	71.0°F (21.7°C)	71.9°F (22.2°C)	-0.9°F (-0.5°C)	24th Coolest	Coolest since: 1909	1927
	71.0°F (21.7°C)	71.9°F (22.2°C)	-0.9°F (-0.5°C)	105th Warmest	Warmest since: 1906	2010
	Ties: 1912, 1956
May–Sep 1910 5-Month	68.9°F (20.5°C)	69.9°F (21.1°C)	-1.0°F (-0.6°C)	18th Coolest	Coolest since: 1909	1924, 1927
	68.9°F (20.5°C)	69.9°F (21.1°C)	-1.0°F (-0.6°C)	111th Warmest	Warmest since: 1908	2010
	Ties: 1956
Apr–Sep 1910 6-Month	66.6°F (19.2°C)	66.9°F (19.4°C)	-0.3°F (-0.2°C)	38th Coolest	Coolest since: 1909	1907
	66.6°F (19.2°C)	66.9°F (19.4°C)	-0.3°F (-0.2°C)	91st Warmest	Warmest since: 1908	2010
	Ties: 1912, 1978
Mar–Sep 1910 7-Month	63.9°F (17.7°C)	63.5°F (17.5°C)	0.4°F (0.2°C)	67th Coolest	Coolest since: 1909	1924
	63.9°F (17.7°C)	63.5°F (17.5°C)	0.4°F (0.2°C)	62nd Warmest	Warmest since: 1900	2010
	Ties: 1933, 1989
Feb–Sep 1910 8-Month	60.2°F (15.7°C)	59.8°F (15.4°C)	0.4°F (0.3°C)	68th Coolest	Coolest since: 1909	1907
	60.2°F (15.7°C)	59.8°F (15.4°C)	0.4°F (0.3°C)	61st Warmest	Warmest since: 1900	2012
	Ties: 1929, 1961, 1993, 2014
Jan–Sep 1910 9-Month	57.0°F (13.9°C)	56.9°F (13.8°C)	0.1°F (0.1°C)	59th Coolest	Coolest since: 1909	1940
Jan–Sep 1910 9-Month	57.0°F (13.9°C)	56.9°F (13.8°C)	0.1°F (0.1°C)	70th Warmest	Warmest since: 1906	2012
Dec 1909–Sep 1910 10-Month	54.4°F (12.4°C)	54.8°F (12.7°C)	-0.4°F (-0.3°C)	42nd Coolest	Coolest since: 1907	1904
	54.4°F (12.4°C)	54.8°F (12.7°C)	-0.4°F (-0.3°C)	86th Warmest	Warmest since: 1909	2012
	Ties: 1911, 1968, 1981
Nov 1909–Sep 1910 11-Month	53.7°F (12.1°C)	54.0°F (12.2°C)	-0.3°F (-0.1°C)	44th Coolest	Coolest since: 1907	1904
	53.7°F (12.1°C)	54.0°F (12.2°C)	-0.3°F (-0.1°C)	84th Warmest	Warmest since: 1909	2012
	Ties: 1928
Oct 1909–Sep 1910 12-Month	53.6°F (12.0°C)	54.2°F (12.3°C)	-0.6°F (-0.3°C)	32nd Coolest	Coolest since: 1908	1904
	53.6°F (12.0°C)	54.2°F (12.3°C)	-0.6°F (-0.3°C)	96th Warmest	Warmest since: 1909	2012
	Ties: 1908, 1948, 1962, 1979
Apr 1909–Sep 1910 18-Month	57.6°F (14.2°C)	58.4°F (14.7°C)	-0.8°F (-0.5°C)	19th Coolest	Coolest since: 1908	1918
	57.6°F (14.2°C)	58.4°F (14.7°C)	-0.8°F (-0.5°C)	109th Warmest	Warmest since: 1909	2012
	Ties: 1912, 1916, 1982
Oct 1908–Sep 1910 24-Month	53.9°F (12.2°C)	54.2°F (12.3°C)	-0.3°F (-0.1°C)	37th Coolest	Coolest since: 1909	1905
	53.9°F (12.2°C)	54.2°F (12.3°C)	-0.3°F (-0.1°C)	90th Warmest	Warmest since: 1909	2017
	Ties: 1900, 1909, 1925, 1959, 1961, 1965
Oct 1907–Sep 1910 36-Month	53.8°F (12.1°C)	54.2°F (12.3°C)	-0.4°F (-0.2°C)	33rd Coolest	Coolest since: 1909	1905, 1918
	53.8°F (12.1°C)	54.2°F (12.3°C)	-0.4°F (-0.2°C)	93rd Warmest	Warmest since: 1901	2018
	Ties: 1899, 1911, 1937, 1940, 1962, 1980, 1982
Oct 1906–Sep 1910 48-Month	53.4°F (11.9°C)	54.2°F (12.3°C)	-0.8°F (-0.4°C)	12th Coolest	Coolest since: 1908	1905
	53.4°F (11.9°C)	54.2°F (12.3°C)	-0.8°F (-0.4°C)	113th Warmest	Warmest since: 1909	2019
	Ties: 1929, 1966, 1968, 1969, 1970
Oct 1905–Sep 1910 60-Month	53.6°F (12.0°C)	54.1°F (12.3°C)	-0.5°F (-0.3°C)	22nd Coolest	Coolest since: 1909	1908
	53.6°F (12.0°C)	54.1°F (12.3°C)	-0.5°F (-0.3°C)	102nd Warmest	Warmest since: 1903	2020
	Ties: 1926, 1964, 1981

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings