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 1955

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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 1955 1-Month	67.3°F (19.6°C)	67.4°F (19.7°C)	-0.1°F (-0.1°C)	52nd Coolest	Coolest since: 1952	1917
	67.3°F (19.6°C)	67.4°F (19.7°C)	-0.1°F (-0.1°C)	77th Warmest	Warmest since: 1954	2018
	Ties: 1897, 1919, 1926, 1972, 1992
Aug–Sep 1955 2-Month	72.2°F (22.3°C)	70.6°F (21.4°C)	1.6°F (0.9°C)	99th Coolest	Coolest since: 1954	1927, 1963
	72.2°F (22.3°C)	70.6°F (21.4°C)	1.6°F (0.9°C)	30th Warmest	Warmest since: 1933	2018
	Ties: 1983, 1995
Jul–Sep 1955 3-Month	74.7°F (23.7°C)	72.2°F (22.3°C)	2.5°F (1.4°C)	115th Coolest	Coolest since: 1954	1909
	74.7°F (23.7°C)	72.2°F (22.3°C)	2.5°F (1.4°C)	14th Warmest	Warmest since: 1900	2016
	Ties: 1999, 2015
Jun–Sep 1955 4-Month	73.0°F (22.8°C)	71.9°F (22.2°C)	1.1°F (0.6°C)	89th Coolest	Coolest since: 1954	1927
	73.0°F (22.8°C)	71.9°F (22.2°C)	1.1°F (0.6°C)	40th Warmest	Warmest since: 1952	2010
	Ties: 1906, 1957, 1989, 2003
May–Sep 1955 5-Month	71.2°F (21.8°C)	69.9°F (21.1°C)	1.3°F (0.7°C)	98th Coolest	Coolest since: 1954	1924, 1927
	71.2°F (21.8°C)	69.9°F (21.1°C)	1.3°F (0.7°C)	31st Warmest	Warmest since: 1944	2010
	Ties: 1934
Apr–Sep 1955 6-Month	68.5°F (20.3°C)	66.9°F (19.4°C)	1.6°F (0.9°C)	105th Coolest	Coolest since: 1954	1907
	68.5°F (20.3°C)	66.9°F (19.4°C)	1.6°F (0.9°C)	24th Warmest	Warmest since: 1921	2010
	Ties: 1921, 1977, 2007, 2013
Mar–Sep 1955 7-Month	65.1°F (18.4°C)	63.5°F (17.5°C)	1.6°F (0.9°C)	106th Coolest	Coolest since: 1954	1924
Mar–Sep 1955 7-Month	65.1°F (18.4°C)	63.5°F (17.5°C)	1.6°F (0.9°C)	23rd Warmest	Warmest since: 1945	2010
Feb–Sep 1955 8-Month	61.3°F (16.3°C)	59.8°F (15.4°C)	1.5°F (0.9°C)	102nd Coolest	Coolest since: 1954	1907
	61.3°F (16.3°C)	59.8°F (15.4°C)	1.5°F (0.9°C)	27th Warmest	Warmest since: 1953	2012
	Ties: 1953, 2000, 2009
Jan–Sep 1955 9-Month	58.1°F (14.5°C)	56.9°F (13.8°C)	1.2°F (0.7°C)	95th Coolest	Coolest since: 1954	1940
	58.1°F (14.5°C)	56.9°F (13.8°C)	1.2°F (0.7°C)	34th Warmest	Warmest since: 1953	2012
	Ties: 1973
Dec 1954–Sep 1955 10-Month	55.8°F (13.2°C)	54.8°F (12.7°C)	1.0°F (0.5°C)	84th Coolest	Coolest since: 1951	1904
	55.8°F (13.2°C)	54.8°F (12.7°C)	1.0°F (0.5°C)	44th Warmest	Warmest since: 1954	2012
	Ties: 1993
Nov 1954–Sep 1955 11-Month	54.7°F (12.6°C)	54.0°F (12.2°C)	0.7°F (0.4°C)	78th Coolest	Coolest since: 1951	1904
	54.7°F (12.6°C)	54.0°F (12.2°C)	0.7°F (0.4°C)	50th Warmest	Warmest since: 1954	2012
	Ties: 1987
Oct 1954–Sep 1955 12-Month	55.2°F (12.9°C)	54.2°F (12.3°C)	1.0°F (0.6°C)	87th Coolest	Coolest since: 1951	1904
Oct 1954–Sep 1955 12-Month	55.2°F (12.9°C)	54.2°F (12.3°C)	1.0°F (0.6°C)	41st Warmest	Warmest since: 1954	2012
Apr 1954–Sep 1955 18-Month	59.3°F (15.2°C)	58.4°F (14.7°C)	0.9°F (0.5°C)	91st Coolest	Coolest since: 1952	1918
	59.3°F (15.2°C)	58.4°F (14.7°C)	0.9°F (0.5°C)	37th Warmest	Warmest since: 1954	2012
	Ties: 1976, 1985, 1987, 2014
Oct 1953–Sep 1955 24-Month	55.3°F (12.9°C)	54.2°F (12.3°C)	1.1°F (0.6°C)	96th Coolest	Coolest since: 1952	1905
Oct 1953–Sep 1955 24-Month	55.3°F (12.9°C)	54.2°F (12.3°C)	1.1°F (0.6°C)	31st Warmest	Warmest since: 1954	2017
Oct 1952–Sep 1955 36-Month	55.3°F (12.9°C)	54.2°F (12.3°C)	1.1°F (0.6°C)	98th Coolest	Coolest since: 1953	1905, 1918
	55.3°F (12.9°C)	54.2°F (12.3°C)	1.1°F (0.6°C)	28th Warmest	Warmest since: 1954	2018
	Ties: 2015
Oct 1951–Sep 1955 48-Month	55.3°F (12.9°C)	54.2°F (12.3°C)	1.1°F (0.6°C)	96th Coolest	Coolest since: 1954	1905
	55.3°F (12.9°C)	54.2°F (12.3°C)	1.1°F (0.6°C)	29th Warmest	Warmest to Date	2019
	Ties: 1994
Oct 1950–Sep 1955 60-Month	55.2°F (12.9°C)	54.1°F (12.3°C)	1.1°F (0.6°C)	94th Coolest	Coolest since: 1954	1908
	55.2°F (12.9°C)	54.1°F (12.3°C)	1.1°F (0.6°C)	30th Warmest	Warmest since: 1953	2020
	Ties: 1953

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings