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 2001

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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 2001 1-Month	66.5°F (19.2°C)	67.4°F (19.7°C)	-0.9°F (-0.5°C)	36th Coolest	Coolest since: 2000	1917
	66.5°F (19.2°C)	67.4°F (19.7°C)	-0.9°F (-0.5°C)	93rd Warmest	Warmest since: 1999	2018
	Ties: 1903
Aug–Sep 2001 2-Month	71.6°F (22.0°C)	70.6°F (21.4°C)	1.0°F (0.6°C)	84th Coolest	Coolest since: 2000	1927, 1963
	71.6°F (22.0°C)	70.6°F (21.4°C)	1.0°F (0.6°C)	45th Warmest	Warmest since: 1999	2018
	Ties: 1901, 1960, 1988
Jul–Sep 2001 3-Month	72.0°F (22.2°C)	72.2°F (22.3°C)	-0.2°F (-0.1°C)	47th Coolest	Coolest since: 2000	1909
Jul–Sep 2001 3-Month	72.0°F (22.2°C)	72.2°F (22.3°C)	-0.2°F (-0.1°C)	82nd Warmest	Warmest since: 1999	2016
Jun–Sep 2001 4-Month	72.4°F (22.4°C)	71.9°F (22.2°C)	0.5°F (0.2°C)	71st Coolest	Coolest since: 2000	1927
	72.4°F (22.4°C)	71.9°F (22.2°C)	0.5°F (0.2°C)	58th Warmest	Warmest since: 1999	2010
	Ties: 1936, 1942, 1945, 2009
May–Sep 2001 5-Month	70.6°F (21.4°C)	69.9°F (21.1°C)	0.7°F (0.3°C)	73rd Coolest	Coolest since: 2000	1924, 1927
May–Sep 2001 5-Month	70.6°F (21.4°C)	69.9°F (21.1°C)	0.7°F (0.3°C)	56th Warmest	Warmest since: 1999	2010
Apr–Sep 2001 6-Month	67.8°F (19.9°C)	66.9°F (19.4°C)	0.9°F (0.5°C)	85th Coolest	Coolest since: 2000	1907
	67.8°F (19.9°C)	66.9°F (19.4°C)	0.9°F (0.5°C)	44th Warmest	Warmest since: 1999	2010
	Ties: 1896, 1934, 1941, 1949, 1953
Mar–Sep 2001 7-Month	64.0°F (17.8°C)	63.5°F (17.5°C)	0.5°F (0.3°C)	76th Coolest	Coolest since: 1997	1924
	64.0°F (17.8°C)	63.5°F (17.5°C)	0.5°F (0.3°C)	53rd Warmest	Warmest since: 2000	2010
	Ties: 1913, 1929, 1943, 1944, 1954, 1968, 2003, 2014
Feb–Sep 2001 8-Month	60.8°F (16.0°C)	59.8°F (15.4°C)	1.0°F (0.6°C)	89th Coolest	Coolest since: 1997	1907
	60.8°F (16.0°C)	59.8°F (15.4°C)	1.0°F (0.6°C)	40th Warmest	Warmest since: 2000	2012
	Ties: 1952, 1987, 2015
Jan–Sep 2001 9-Month	57.7°F (14.3°C)	56.9°F (13.8°C)	0.8°F (0.5°C)	83rd Coolest	Coolest since: 1997	1940
	57.7°F (14.3°C)	56.9°F (13.8°C)	0.8°F (0.5°C)	46th Warmest	Warmest since: 2000	2012
	Ties: 1983
Dec 2000–Sep 2001 10-Month	55.1°F (12.8°C)	54.8°F (12.7°C)	0.3°F (0.1°C)	65th Coolest	Coolest since: 1996	1904
	55.1°F (12.8°C)	54.8°F (12.7°C)	0.3°F (0.1°C)	63rd Warmest	Warmest since: 2000	2012
	Ties: 1929, 1943
Nov 2000–Sep 2001 11-Month	54.1°F (12.3°C)	54.0°F (12.2°C)	0.1°F (0.1°C)	58th Coolest	Coolest since: 1996	1904
	54.1°F (12.3°C)	54.0°F (12.2°C)	0.1°F (0.1°C)	70th Warmest	Warmest since: 2000	2012
	Ties: 1896, 1951, 1992, 1994
Oct 2000–Sep 2001 12-Month	54.4°F (12.4°C)	54.2°F (12.3°C)	0.2°F (0.1°C)	58th Coolest	Coolest since: 1996	1904
	54.4°F (12.4°C)	54.2°F (12.3°C)	0.2°F (0.1°C)	70th Warmest	Warmest since: 2000	2012
	Ties: 1938, 1945, 1992
Apr 2000–Sep 2001 18-Month	58.6°F (14.8°C)	58.4°F (14.7°C)	0.2°F (0.1°C)	59th Coolest	Coolest since: 1996	1918
	58.6°F (14.8°C)	58.4°F (14.7°C)	0.2°F (0.1°C)	69th Warmest	Warmest since: 2000	2012
	Ties: 1898, 1944, 1959, 1973, 1975, 1981
Oct 1999–Sep 2001 24-Month	55.2°F (12.9°C)	54.2°F (12.3°C)	1.0°F (0.6°C)	95th Coolest	Coolest since: 1997	1905
	55.2°F (12.9°C)	54.2°F (12.3°C)	1.0°F (0.6°C)	32nd Warmest	Warmest since: 2000	2017
	Ties: 1987, 1995
Oct 1998–Sep 2001 36-Month	55.6°F (13.1°C)	54.2°F (12.3°C)	1.4°F (0.8°C)	103rd Coolest	Coolest since: 1998	1905, 1918
	55.6°F (13.1°C)	54.2°F (12.3°C)	1.4°F (0.8°C)	23rd Warmest	Warmest since: 2000	2018
	Ties: 1993, 2003
Oct 1997–Sep 2001 48-Month	55.9°F (13.3°C)	54.2°F (12.3°C)	1.7°F (1.0°C)	105th Coolest	Coolest since: 1999	1905
Oct 1997–Sep 2001 48-Month	55.9°F (13.3°C)	54.2°F (12.3°C)	1.7°F (1.0°C)	20th Warmest	Warmest since: 2000	2019
Oct 1996–Sep 2001 60-Month	55.7°F (13.2°C)	54.1°F (12.3°C)	1.6°F (0.9°C)	104th Coolest	Coolest since: 2000	1908
	55.7°F (13.2°C)	54.1°F (12.3°C)	1.6°F (0.9°C)	20th Warmest	Warmest to Date	2020
	Ties: 2004, 2005

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings