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 1930

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1930 1-Month	72.6°F (22.6°C)	67.4°F (19.7°C)	5.2°F (2.9°C)	127th Coolest	Coolest since: 1929	1917
September 1930 1-Month	72.6°F (22.6°C)	67.4°F (19.7°C)	5.2°F (2.9°C)	2nd Warmest	Warmest to Date	2018
Aug–Sep 1930 2-Month	72.9°F (22.7°C)	70.6°F (21.4°C)	2.3°F (1.3°C)	106th Coolest	Coolest since: 1929	1927, 1963
	72.9°F (22.7°C)	70.6°F (21.4°C)	2.3°F (1.3°C)	23rd Warmest	Warmest since: 1906	2018
	Ties: 1970, 2003
Jul–Sep 1930 3-Month	74.2°F (23.4°C)	72.2°F (22.3°C)	2.0°F (1.1°C)	110th Coolest	Coolest since: 1929	1909
	74.2°F (23.4°C)	72.2°F (22.3°C)	2.0°F (1.1°C)	19th Warmest	Warmest since: 1900	2016
	Ties: 1977, 1993, 1995, 2007
Jun–Sep 1930 4-Month	73.7°F (23.2°C)	71.9°F (22.2°C)	1.8°F (1.0°C)	110th Coolest	Coolest since: 1929	1927
Jun–Sep 1930 4-Month	73.7°F (23.2°C)	71.9°F (22.2°C)	1.8°F (1.0°C)	19th Warmest	Warmest since: 1900	2010
May–Sep 1930 5-Month	71.8°F (22.1°C)	69.9°F (21.1°C)	1.9°F (1.0°C)	112th Coolest	Coolest since: 1929	1924, 1927
	71.8°F (22.1°C)	69.9°F (21.1°C)	1.9°F (1.0°C)	17th Warmest	Warmest since: 1900	2010
	Ties: 1987, 2005
Apr–Sep 1930 6-Month	68.1°F (20.1°C)	66.9°F (19.4°C)	1.2°F (0.7°C)	96th Coolest	Coolest since: 1929	1907
	68.1°F (20.1°C)	66.9°F (19.4°C)	1.2°F (0.7°C)	33rd Warmest	Warmest since: 1921	2010
	Ties: 2009
Mar–Sep 1930 7-Month	64.4°F (18.0°C)	63.5°F (17.5°C)	0.9°F (0.5°C)	93rd Coolest	Coolest since: 1929	1924
	64.4°F (18.0°C)	63.5°F (17.5°C)	0.9°F (0.5°C)	36th Warmest	Warmest since: 1925	2010
	Ties: 1898, 1900, 1925, 1936, 1949, 1953, 1994, 2000
Feb–Sep 1930 8-Month	61.2°F (16.2°C)	59.8°F (15.4°C)	1.4°F (0.8°C)	98th Coolest	Coolest since: 1929	1907
	61.2°F (16.2°C)	59.8°F (15.4°C)	1.4°F (0.8°C)	31st Warmest	Warmest since: 1925	2012
	Ties: 1939, 1985, 2005
Jan–Sep 1930 9-Month	58.2°F (14.6°C)	56.9°F (13.8°C)	1.3°F (0.8°C)	100th Coolest	Coolest since: 1929	1940
	58.2°F (14.6°C)	56.9°F (13.8°C)	1.3°F (0.8°C)	29th Warmest	Warmest since: 1925	2012
	Ties: 1925, 1939, 2000, 2005
Dec 1929–Sep 1930 10-Month	56.1°F (13.4°C)	54.8°F (12.7°C)	1.3°F (0.7°C)	92nd Coolest	Coolest since: 1929	1904
Dec 1929–Sep 1930 10-Month	56.1°F (13.4°C)	54.8°F (12.7°C)	1.3°F (0.7°C)	36th Warmest	Warmest since: 1921	2012
Nov 1929–Sep 1930 11-Month	55.2°F (12.9°C)	54.0°F (12.2°C)	1.2°F (0.7°C)	95th Coolest	Coolest since: 1929	1904
	55.2°F (12.9°C)	54.0°F (12.2°C)	1.2°F (0.7°C)	33rd Warmest	Warmest since: 1921	2012
	Ties: 1954, 1985, 2009
Oct 1929–Sep 1930 12-Month	55.1°F (12.8°C)	54.2°F (12.3°C)	0.9°F (0.5°C)	86th Coolest	Coolest since: 1929	1904
	55.1°F (12.8°C)	54.2°F (12.3°C)	0.9°F (0.5°C)	42nd Warmest	Warmest since: 1921	2012
	Ties: 1898, 1973, 1974, 1980, 1987
Apr 1929–Sep 1930 18-Month	58.9°F (14.9°C)	58.4°F (14.7°C)	0.5°F (0.2°C)	75th Coolest	Coolest since: 1929	1918
	58.9°F (14.9°C)	58.4°F (14.7°C)	0.5°F (0.2°C)	53rd Warmest	Warmest since: 1922	2012
	Ties: 1922, 1945, 1994
Oct 1928–Sep 1930 24-Month	54.8°F (12.7°C)	54.2°F (12.3°C)	0.6°F (0.4°C)	80th Coolest	Coolest since: 1929	1905
	54.8°F (12.7°C)	54.2°F (12.3°C)	0.6°F (0.4°C)	47th Warmest	Warmest since: 1922	2017
	Ties: 1975, 1985, 1988
Oct 1927–Sep 1930 36-Month	54.5°F (12.5°C)	54.2°F (12.3°C)	0.3°F (0.2°C)	69th Coolest	Coolest since: 1929	1905, 1918
	54.5°F (12.5°C)	54.2°F (12.3°C)	0.3°F (0.2°C)	57th Warmest	Warmest since: 1923	2018
	Ties: 1922, 1931, 1956, 1959, 1973, 1977, 1994
Oct 1926–Sep 1930 48-Month	54.1°F (12.3°C)	54.2°F (12.3°C)	-0.1°F (0.0°C)	52nd Coolest	Coolest since: 1929	1905
	54.1°F (12.3°C)	54.2°F (12.3°C)	-0.1°F (0.0°C)	73rd Warmest	Warmest since: 1924	2019
	Ties: 1959, 1978
Oct 1925–Sep 1930 60-Month	53.7°F (12.1°C)	54.1°F (12.3°C)	-0.4°F (-0.2°C)	26th Coolest	Coolest since: 1929	1908
	53.7°F (12.1°C)	54.1°F (12.3°C)	-0.4°F (-0.2°C)	98th Warmest	Warmest since: 1929	2020
	Ties: 1903, 1916, 1917, 1921, 1929, 1963

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 25, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings