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, October 2009

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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
October 2009 1-Month	56.6°F (13.7°C)	56.4°F (13.6°C)	0.2°F (0.1°C)	59th Coolest	Coolest since: 2008	1907
October 2009 1-Month	56.6°F (13.7°C)	56.4°F (13.6°C)	0.2°F (0.1°C)	70th Warmest	Warmest since: 2007	2007
Sep–Oct 2009 2-Month	61.8°F (16.6°C)	61.9°F (16.6°C)	-0.1°F (0.0°C)	53rd Coolest	Coolest since: 2006	1917
Sep–Oct 2009 2-Month	61.8°F (16.6°C)	61.9°F (16.6°C)	-0.1°F (0.0°C)	76th Warmest	Warmest since: 2008	2007
Aug–Oct 2009 3-Month	66.9°F (19.4°C)	65.8°F (18.8°C)	1.1°F (0.6°C)	88th Coolest	Coolest since: 2008	1909, 1917
	66.9°F (19.4°C)	65.8°F (18.8°C)	1.1°F (0.6°C)	41st Warmest	Warmest since: 2007	2018
	Ties: 1920, 1939, 1975, 1977, 1989, 1999, 2001
Jul–Oct 2009 4-Month	68.8°F (20.4°C)	68.3°F (20.2°C)	0.5°F (0.2°C)	74th Coolest	Coolest since: 2001	1909
	68.8°F (20.4°C)	68.3°F (20.2°C)	0.5°F (0.2°C)	55th Warmest	Warmest since: 2008	2016
	Ties: 1939, 1942, 1951, 1975
Jun–Oct 2009 5-Month	69.2°F (20.7°C)	68.7°F (20.4°C)	0.5°F (0.3°C)	70th Coolest	Coolest since: 2000	1907
	69.2°F (20.7°C)	68.7°F (20.4°C)	0.5°F (0.3°C)	59th Warmest	Warmest since: 2008	2010
	Ties: 1933, 1934, 1953, 1975, 1977
May–Oct 2009 6-Month	68.3°F (20.2°C)	67.7°F (19.8°C)	0.6°F (0.4°C)	73rd Coolest	Coolest since: 2003	1907
	68.3°F (20.2°C)	67.7°F (19.8°C)	0.6°F (0.4°C)	56th Warmest	Warmest since: 2008	2010, 2018
	Ties: 1919, 1934, 1954, 1984
Apr–Oct 2009 7-Month	66.4°F (19.1°C)	65.4°F (18.6°C)	1.0°F (0.5°C)	91st Coolest	Coolest since: 2003	1907
	66.4°F (19.1°C)	65.4°F (18.6°C)	1.0°F (0.5°C)	38th Warmest	Warmest since: 2008	2019
	Ties: 1931, 1957, 1970
Mar–Oct 2009 8-Month	63.5°F (17.5°C)	62.6°F (17.0°C)	0.9°F (0.5°C)	92nd Coolest	Coolest since: 2003	1907
	63.5°F (17.5°C)	62.6°F (17.0°C)	0.9°F (0.5°C)	37th Warmest	Warmest since: 2008	2010
	Ties: 1898, 1936, 1954, 1980
Feb–Oct 2009 9-Month	60.7°F (15.9°C)	59.4°F (15.2°C)	1.3°F (0.7°C)	96th Coolest	Coolest since: 2003	1907
	60.7°F (15.9°C)	59.4°F (15.2°C)	1.3°F (0.7°C)	33rd Warmest	Warmest since: 2008	2012
	Ties: 1939, 1973
Jan–Oct 2009 10-Month	57.7°F (14.3°C)	56.8°F (13.8°C)	0.9°F (0.5°C)	90th Coolest	Coolest since: 2003	1940
	57.7°F (14.3°C)	56.8°F (13.8°C)	0.9°F (0.5°C)	39th Warmest	Warmest since: 2008	2012
	Ties: 1919, 1938, 1952, 1983, 1985, 1986, 2001
Dec 2008–Oct 2009 11-Month	56.2°F (13.4°C)	55.0°F (12.8°C)	1.2°F (0.6°C)	95th Coolest	Coolest since: 2003	1904
	56.2°F (13.4°C)	55.0°F (12.8°C)	1.2°F (0.6°C)	33rd Warmest	Warmest since: 2008	2012
	Ties: 1933, 1957
Nov 2008–Oct 2009 12-Month	55.3°F (12.9°C)	54.2°F (12.3°C)	1.1°F (0.6°C)	93rd Coolest	Coolest since: 2003	1904
	55.3°F (12.9°C)	54.2°F (12.3°C)	1.1°F (0.6°C)	35th Warmest	Warmest since: 2008	2012
	Ties: 1986
May 2008–Oct 2009 18-Month	59.8°F (15.4°C)	58.7°F (14.8°C)	1.1°F (0.6°C)	101st Coolest	Coolest since: 2003	1904
	59.8°F (15.4°C)	58.7°F (14.8°C)	1.1°F (0.6°C)	27th Warmest	Warmest since: 2008	2012
	Ties: 1921, 1953, 1985
Nov 2007–Oct 2009 24-Month	55.8°F (13.2°C)	54.2°F (12.3°C)	1.6°F (0.9°C)	105th Coolest	Coolest since: 2004	1905
Nov 2007–Oct 2009 24-Month	55.8°F (13.2°C)	54.2°F (12.3°C)	1.6°F (0.9°C)	22nd Warmest	Warmest since: 2008	2017
Nov 2006–Oct 2009 36-Month	56.2°F (13.4°C)	54.2°F (12.3°C)	2.0°F (1.1°C)	110th Coolest	Coolest since: 2006	1905
Nov 2006–Oct 2009 36-Month	56.2°F (13.4°C)	54.2°F (12.3°C)	2.0°F (1.1°C)	16th Warmest	Warmest since: 2008	2018
Nov 2005–Oct 2009 48-Month	56.3°F (13.5°C)	54.2°F (12.3°C)	2.1°F (1.2°C)	112th Coolest	Coolest since: 2006	1907
	56.3°F (13.5°C)	54.2°F (12.3°C)	2.1°F (1.2°C)	13th Warmest	Warmest since: 2008	2019
	Ties: 2002, 2011
Nov 2004–Oct 2009 60-Month	56.2°F (13.4°C)	54.2°F (12.3°C)	2.0°F (1.1°C)	109th Coolest	Coolest since: 2007	1905, 1907, 1908
	56.2°F (13.4°C)	54.2°F (12.3°C)	2.0°F (1.1°C)	15th Warmest	Warmest since: 2008	2020
	Ties: 2015

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings