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 1964

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1964 1-Month	67.1°F (19.5°C)	67.4°F (19.7°C)	-0.3°F (-0.2°C)	50th Coolest	Coolest since: 1963	1917
	67.1°F (19.5°C)	67.4°F (19.7°C)	-0.3°F (-0.2°C)	79th Warmest	Warmest since: 1961	2018
	Ties: 1997
Aug–Sep 1964 2-Month	69.4°F (20.8°C)	70.6°F (21.4°C)	-1.2°F (-0.6°C)	18th Coolest	Coolest since: 1963	1927, 1963
	69.4°F (20.8°C)	70.6°F (21.4°C)	-1.2°F (-0.6°C)	111th Warmest	Warmest since: 1961	2018
	Ties: 1899, 1956, 1976, 1992
Jul–Sep 1964 3-Month	71.5°F (21.9°C)	72.2°F (22.3°C)	-0.7°F (-0.4°C)	27th Coolest	Coolest since: 1963	1909
	71.5°F (21.9°C)	72.2°F (22.3°C)	-0.7°F (-0.4°C)	102nd Warmest	Warmest since: 1961	2016
	Ties: 1899, 1905, 1920, 1935, 1937, 1992
Jun–Sep 1964 4-Month	71.4°F (21.9°C)	71.9°F (22.2°C)	-0.5°F (-0.3°C)	38th Coolest	Coolest since: 1963	1927
	71.4°F (21.9°C)	71.9°F (22.2°C)	-0.5°F (-0.3°C)	91st Warmest	Warmest since: 1961	2010
	Ties: 1896, 1914
May–Sep 1964 5-Month	69.9°F (21.1°C)	69.9°F (21.1°C)	0.0°F (0.0°C)	52nd Coolest	Coolest since: 1963	1924, 1927
	69.9°F (21.1°C)	69.9°F (21.1°C)	0.0°F (0.0°C)	77th Warmest	Warmest since: 1961	2010
	Ties: 1899, 1914, 1922, 1945, 1947, 1954
Apr–Sep 1964 6-Month	66.5°F (19.2°C)	66.9°F (19.4°C)	-0.4°F (-0.2°C)	33rd Coolest	Coolest since: 1963	1907
	66.5°F (19.2°C)	66.9°F (19.4°C)	-0.4°F (-0.2°C)	96th Warmest	Warmest since: 1961	2010
	Ties: 1905, 1932, 1958, 1984
Mar–Sep 1964 7-Month	63.3°F (17.4°C)	63.5°F (17.5°C)	-0.2°F (-0.1°C)	44th Coolest	Coolest since: 1963	1924
	63.3°F (17.4°C)	63.5°F (17.5°C)	-0.2°F (-0.1°C)	85th Warmest	Warmest since: 1961	2010
	Ties: 1918, 1941, 1951
Feb–Sep 1964 8-Month	59.5°F (15.3°C)	59.8°F (15.4°C)	-0.3°F (-0.1°C)	41st Coolest	Coolest since: 1963	1907
	59.5°F (15.3°C)	59.8°F (15.4°C)	-0.3°F (-0.1°C)	88th Warmest	Warmest since: 1961	2012
	Ties: 1909, 1918, 1996
Jan–Sep 1964 9-Month	56.7°F (13.7°C)	56.9°F (13.8°C)	-0.2°F (-0.1°C)	51st Coolest	Coolest since: 1963	1940
	56.7°F (13.7°C)	56.9°F (13.8°C)	-0.2°F (-0.1°C)	78th Warmest	Warmest since: 1959	2012
	Ties: 1896, 1950, 2003
Dec 1963–Sep 1964 10-Month	54.0°F (12.2°C)	54.8°F (12.7°C)	-0.8°F (-0.5°C)	28th Coolest	Coolest since: 1963	1904
	54.0°F (12.2°C)	54.8°F (12.7°C)	-0.8°F (-0.5°C)	100th Warmest	Warmest since: 1960	2012
	Ties: 1934, 1979
Nov 1963–Sep 1964 11-Month	53.5°F (11.9°C)	54.0°F (12.2°C)	-0.5°F (-0.3°C)	40th Coolest	Coolest since: 1963	1904
	53.5°F (11.9°C)	54.0°F (12.2°C)	-0.5°F (-0.3°C)	88th Warmest	Warmest since: 1960	2012
	Ties: 1901, 1977
Oct 1963–Sep 1964 12-Month	53.9°F (12.2°C)	54.2°F (12.3°C)	-0.3°F (-0.1°C)	45th Coolest	Coolest since: 1963	1904
	53.9°F (12.2°C)	54.2°F (12.3°C)	-0.3°F (-0.1°C)	83rd Warmest	Warmest since: 1960	2012
	Ties: 1971
Apr 1963–Sep 1964 18-Month	57.9°F (14.4°C)	58.4°F (14.7°C)	-0.5°F (-0.3°C)	24th Coolest	Coolest since: 1963	1918
	57.9°F (14.4°C)	58.4°F (14.7°C)	-0.5°F (-0.3°C)	104th Warmest	Warmest since: 1962	2012
	Ties: 1911, 1966, 1970, 1977, 1978, 1979
Oct 1962–Sep 1964 24-Month	53.2°F (11.8°C)	54.2°F (12.3°C)	-1.0°F (-0.5°C)	15th Coolest	Coolest since: 1963	1905
	53.2°F (11.8°C)	54.2°F (12.3°C)	-1.0°F (-0.5°C)	112th Warmest	Warmest since: 1962	2017
	Ties: 1902, 1919, 1935, 1967
Oct 1961–Sep 1964 36-Month	53.3°F (11.8°C)	54.2°F (12.3°C)	-0.9°F (-0.5°C)	14th Coolest	Coolest since: 1963	1905, 1918
	53.3°F (11.8°C)	54.2°F (12.3°C)	-0.9°F (-0.5°C)	112th Warmest	Warmest since: 1962	2018
	Ties: 1909, 1912, 1927
Oct 1960–Sep 1964 48-Month	53.3°F (11.8°C)	54.2°F (12.3°C)	-0.9°F (-0.5°C)	10th Coolest	Coolest since: 1927	1905
	53.3°F (11.8°C)	54.2°F (12.3°C)	-0.9°F (-0.5°C)	115th Warmest	Warmest since: 1963	2019
	Ties: 1917
Oct 1959–Sep 1964 60-Month	53.6°F (12.0°C)	54.1°F (12.3°C)	-0.5°F (-0.3°C)	22nd Coolest	Coolest since: 1928	1908
	53.6°F (12.0°C)	54.1°F (12.3°C)	-0.5°F (-0.3°C)	102nd Warmest	Warmest since: 1963	2020
	Ties: 1910, 1926, 1981

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings