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 1979

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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 1979 1-Month	67.7°F (19.8°C)	67.4°F (19.7°C)	0.3°F (0.1°C)	63rd Coolest	Coolest since: 1978	1917
	67.7°F (19.8°C)	67.4°F (19.7°C)	0.3°F (0.1°C)	66th Warmest	Warmest since: 1977	2018
	Ties: 1946, 1953
Aug–Sep 1979 2-Month	70.9°F (21.6°C)	70.6°F (21.4°C)	0.3°F (0.2°C)	62nd Coolest	Coolest since: 1976	1927, 1963
	70.9°F (21.6°C)	70.6°F (21.4°C)	0.3°F (0.2°C)	67th Warmest	Warmest since: 1978	2018
	Ties: 1915, 2014
Jul–Sep 1979 3-Month	71.9°F (22.2°C)	72.2°F (22.3°C)	-0.3°F (-0.1°C)	44th Coolest	Coolest since: 1976	1909
	71.9°F (22.2°C)	72.2°F (22.3°C)	-0.3°F (-0.1°C)	85th Warmest	Warmest since: 1978	2016
	Ties: 1974, 1975
Jun–Sep 1979 4-Month	70.8°F (21.6°C)	71.9°F (22.2°C)	-1.1°F (-0.6°C)	20th Coolest	Coolest since: 1972	1927
Jun–Sep 1979 4-Month	70.8°F (21.6°C)	71.9°F (22.2°C)	-1.1°F (-0.6°C)	109th Warmest	Warmest since: 1978	2010
May–Sep 1979 5-Month	69.4°F (20.8°C)	69.9°F (21.1°C)	-0.5°F (-0.3°C)	31st Coolest	Coolest since: 1976	1924, 1927
	69.4°F (20.8°C)	69.9°F (21.1°C)	-0.5°F (-0.3°C)	98th Warmest	Warmest since: 1978	2010
	Ties: 1912, 1918, 1919, 1923, 1976
Apr–Sep 1979 6-Month	66.4°F (19.1°C)	66.9°F (19.4°C)	-0.5°F (-0.3°C)	27th Coolest	Coolest since: 1975	1907
	66.4°F (19.1°C)	66.9°F (19.4°C)	-0.5°F (-0.3°C)	102nd Warmest	Warmest since: 1978	2010
	Ties: 1918, 1919, 1962, 1971, 1975
Mar–Sep 1979 7-Month	63.5°F (17.5°C)	63.5°F (17.5°C)	0.0°F (0.0°C)	53rd Coolest	Coolest since: 1978	1924
	63.5°F (17.5°C)	63.5°F (17.5°C)	0.0°F (0.0°C)	76th Warmest	Warmest since: 1977	2010
	Ties: 1906, 1969, 1970, 1974
Feb–Sep 1979 8-Month	58.5°F (14.7°C)	59.8°F (15.4°C)	-1.3°F (-0.7°C)	17th Coolest	Coolest since: 1978	1907
Feb–Sep 1979 8-Month	58.5°F (14.7°C)	59.8°F (15.4°C)	-1.3°F (-0.7°C)	112th Warmest	Warmest since: 1977	2012
Jan–Sep 1979 9-Month	55.7°F (13.2°C)	56.9°F (13.8°C)	-1.2°F (-0.6°C)	19th Coolest	Coolest since: 1978	1940
	55.7°F (13.2°C)	56.9°F (13.8°C)	-1.2°F (-0.6°C)	110th Warmest	Warmest since: 1977	2012
	Ties: 1916, 1927
Dec 1978–Sep 1979 10-Month	54.0°F (12.2°C)	54.8°F (12.7°C)	-0.8°F (-0.5°C)	28th Coolest	Coolest since: 1978	1904
	54.0°F (12.2°C)	54.8°F (12.7°C)	-0.8°F (-0.5°C)	100th Warmest	Warmest since: 1977	2012
	Ties: 1934, 1964
Nov 1978–Sep 1979 11-Month	53.4°F (11.9°C)	54.0°F (12.2°C)	-0.6°F (-0.3°C)	32nd Coolest	Coolest since: 1978	1904
	53.4°F (11.9°C)	54.0°F (12.2°C)	-0.6°F (-0.3°C)	96th Warmest	Warmest since: 1977	2012
	Ties: 1897, 1914, 1923, 1966, 1971, 1981, 1984
Oct 1978–Sep 1979 12-Month	53.6°F (12.0°C)	54.2°F (12.3°C)	-0.6°F (-0.3°C)	32nd Coolest	Coolest since: 1978	1904
	53.6°F (12.0°C)	54.2°F (12.3°C)	-0.6°F (-0.3°C)	96th Warmest	Warmest since: 1976	2012
	Ties: 1908, 1910, 1948, 1962
Apr 1978–Sep 1979 18-Month	57.9°F (14.4°C)	58.4°F (14.7°C)	-0.5°F (-0.3°C)	24th Coolest	Coolest since: 1978	1918
	57.9°F (14.4°C)	58.4°F (14.7°C)	-0.5°F (-0.3°C)	104th Warmest	Warmest since: 1978	2012
	Ties: 1911, 1964, 1966, 1970, 1977, 1978
Oct 1977–Sep 1979 24-Month	53.1°F (11.7°C)	54.2°F (12.3°C)	-1.1°F (-0.6°C)	9th Coolest	Coolest since: 1978	1905
	53.1°F (11.7°C)	54.2°F (12.3°C)	-1.1°F (-0.6°C)	118th Warmest	Warmest since: 1977	2017
	Ties: 1906, 1912, 1963, 1968, 1982
Oct 1976–Sep 1979 36-Month	53.2°F (11.8°C)	54.2°F (12.3°C)	-1.0°F (-0.5°C)	10th Coolest	Coolest since: 1968	1905, 1918
	53.2°F (11.8°C)	54.2°F (12.3°C)	-1.0°F (-0.5°C)	116th Warmest	Warmest since: 1978	2018
	Ties: 1936, 1963, 1968
Oct 1975–Sep 1979 48-Month	53.8°F (12.1°C)	54.2°F (12.3°C)	-0.4°F (-0.2°C)	33rd Coolest	Coolest since: 1971	1905
	53.8°F (12.1°C)	54.2°F (12.3°C)	-0.4°F (-0.2°C)	92nd Warmest	Warmest since: 1978	2019
	Ties: 1899, 1913, 1936, 1943
Oct 1974–Sep 1979 60-Month	54.0°F (12.2°C)	54.1°F (12.3°C)	-0.1°F (-0.1°C)	44th Coolest	Coolest since: 1972	1908
	54.0°F (12.2°C)	54.1°F (12.3°C)	-0.1°F (-0.1°C)	80th Warmest	Warmest since: 1978	2020
	Ties: 1900, 1922, 1924

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