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 1911

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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 1911 1-Month	68.6°F (20.3°C)	67.4°F (19.7°C)	1.2°F (0.6°C)	84th Coolest	Coolest since: 1909	1917
	68.6°F (20.3°C)	67.4°F (19.7°C)	1.2°F (0.6°C)	45th Warmest	Warmest since: 1910	2018
	Ties: 1912, 1934, 1944, 1999
Aug–Sep 1911 2-Month	71.4°F (21.9°C)	70.6°F (21.4°C)	0.8°F (0.5°C)	78th Coolest	Coolest since: 1910	1927, 1963
	71.4°F (21.9°C)	70.6°F (21.4°C)	0.8°F (0.5°C)	51st Warmest	Warmest since: 1906	2018
	Ties: 1989, 1991
Jul–Sep 1911 3-Month	73.2°F (22.9°C)	72.2°F (22.3°C)	1.0°F (0.6°C)	89th Coolest	Coolest since: 1910	1909
	73.2°F (22.9°C)	72.2°F (22.3°C)	1.0°F (0.6°C)	40th Warmest	Warmest since: 1906	2016
	Ties: 2004
Jun–Sep 1911 4-Month	72.6°F (22.6°C)	71.9°F (22.2°C)	0.7°F (0.4°C)	76th Coolest	Coolest since: 1910	1927
	72.6°F (22.6°C)	71.9°F (22.2°C)	0.7°F (0.4°C)	53rd Warmest	Warmest since: 1906	2010
	Ties: 1968, 2014
May–Sep 1911 5-Month	71.4°F (21.9°C)	69.9°F (21.1°C)	1.5°F (0.8°C)	104th Coolest	Coolest since: 1910	1924, 1927
	71.4°F (21.9°C)	69.9°F (21.1°C)	1.5°F (0.8°C)	25th Warmest	Warmest since: 1900	2010
	Ties: 1944, 2006
Apr–Sep 1911 6-Month	67.5°F (19.7°C)	66.9°F (19.4°C)	0.6°F (0.3°C)	71st Coolest	Coolest since: 1910	1907
	67.5°F (19.7°C)	66.9°F (19.4°C)	0.6°F (0.3°C)	58th Warmest	Warmest since: 1906	2010
	Ties: 1943, 1945, 1989
Mar–Sep 1911 7-Month	63.4°F (17.4°C)	63.5°F (17.5°C)	-0.1°F (-0.1°C)	48th Coolest	Coolest since: 1909	1924
	63.4°F (17.4°C)	63.5°F (17.5°C)	-0.1°F (-0.1°C)	81st Warmest	Warmest since: 1910	2010
	Ties: 1896, 1919, 1946, 1981
Feb–Sep 1911 8-Month	59.8°F (15.4°C)	59.8°F (15.4°C)	0.0°F (0.0°C)	52nd Coolest	Coolest since: 1909	1907
	59.8°F (15.4°C)	59.8°F (15.4°C)	0.0°F (0.0°C)	77th Warmest	Warmest since: 1910	2012
	Ties: 1896, 1906, 1968, 1974
Jan–Sep 1911 9-Month	57.3°F (14.1°C)	56.9°F (13.8°C)	0.4°F (0.3°C)	67th Coolest	Coolest since: 1910	1940
	57.3°F (14.1°C)	56.9°F (13.8°C)	0.4°F (0.3°C)	62nd Warmest	Warmest since: 1906	2012
	Ties: 1931, 1946, 1951
Dec 1910–Sep 1911 10-Month	54.4°F (12.4°C)	54.8°F (12.7°C)	-0.4°F (-0.3°C)	42nd Coolest	Coolest since: 1910	1904
	54.4°F (12.4°C)	54.8°F (12.7°C)	-0.4°F (-0.3°C)	86th Warmest	Warmest since: 1910	2012
	Ties: 1910, 1968, 1981
Nov 1910–Sep 1911 11-Month	53.1°F (11.7°C)	54.0°F (12.2°C)	-0.9°F (-0.5°C)	23rd Coolest	Coolest since: 1907	1904
	53.1°F (11.7°C)	54.0°F (12.2°C)	-0.9°F (-0.5°C)	105th Warmest	Warmest since: 1910	2012
	Ties: 1936, 1958, 1961, 1996
Oct 1910–Sep 1911 12-Month	53.5°F (11.9°C)	54.2°F (12.3°C)	-0.7°F (-0.4°C)	30th Coolest	Coolest since: 1907	1904
	53.5°F (11.9°C)	54.2°F (12.3°C)	-0.7°F (-0.4°C)	98th Warmest	Warmest since: 1910	2012
	Ties: 1981
Apr 1910–Sep 1911 18-Month	57.9°F (14.4°C)	58.4°F (14.7°C)	-0.5°F (-0.3°C)	24th Coolest	Coolest since: 1910	1918
	57.9°F (14.4°C)	58.4°F (14.7°C)	-0.5°F (-0.3°C)	104th Warmest	Warmest since: 1909	2012
	Ties: 1964, 1966, 1970, 1977, 1978, 1979
Oct 1909–Sep 1911 24-Month	53.5°F (11.9°C)	54.2°F (12.3°C)	-0.7°F (-0.4°C)	27th Coolest	Coolest since: 1908	1905
	53.5°F (11.9°C)	54.2°F (12.3°C)	-0.7°F (-0.4°C)	100th Warmest	Warmest since: 1910	2017
	Ties: 1962, 1971
Oct 1908–Sep 1911 36-Month	53.8°F (12.1°C)	54.2°F (12.3°C)	-0.4°F (-0.2°C)	33rd Coolest	Coolest since: 1910	1905, 1918
	53.8°F (12.1°C)	54.2°F (12.3°C)	-0.4°F (-0.2°C)	93rd Warmest	Warmest since: 1910	2018
	Ties: 1899, 1910, 1937, 1940, 1962, 1980, 1982
Oct 1907–Sep 1911 48-Month	53.7°F (12.1°C)	54.2°F (12.3°C)	-0.5°F (-0.2°C)	28th Coolest	Coolest since: 1910	1905
	53.7°F (12.1°C)	54.2°F (12.3°C)	-0.5°F (-0.2°C)	97th Warmest	Warmest since: 1903	2019
	Ties: 1941, 1980, 1981, 1982
Oct 1906–Sep 1911 60-Month	53.4°F (11.9°C)	54.1°F (12.3°C)	-0.7°F (-0.4°C)	11th Coolest	Coolest since: 1909	1908
	53.4°F (11.9°C)	54.1°F (12.3°C)	-0.7°F (-0.4°C)	113th Warmest	Warmest since: 1910	2020
	Ties: 1904, 1928, 1965, 1966, 1970

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings