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, May 1909

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1909 1-Month	61.7°F (16.5°C)	62.1°F (16.7°C)	-0.4°F (-0.2°C)	54th Coolest	Coolest since: 1907	1967
	61.7°F (16.5°C)	62.1°F (16.7°C)	-0.4°F (-0.2°C)	75th Warmest	Warmest since: 1908	2004
	Ties: 2016
Apr–May 1909 2-Month	56.8°F (13.8°C)	57.1°F (13.9°C)	-0.3°F (-0.1°C)	43rd Coolest	Coolest since: 1907	1907
	56.8°F (13.8°C)	57.1°F (13.9°C)	-0.3°F (-0.1°C)	86th Warmest	Warmest since: 1908	2019
	Ties: 1936, 1964, 1982
Mar–May 1909 3-Month	51.3°F (10.7°C)	52.3°F (11.3°C)	-1.0°F (-0.6°C)	39th Coolest	Coolest since: 1907	1940
	51.3°F (10.7°C)	52.3°F (11.3°C)	-1.0°F (-0.6°C)	90th Warmest	Warmest since: 1908	2012
	Ties: 1899
Feb–May 1909 4-Month	48.9°F (9.4°C)	47.8°F (8.8°C)	1.1°F (0.6°C)	83rd Coolest	Coolest since: 1908	1934
Feb–May 1909 4-Month	48.9°F (9.4°C)	47.8°F (8.8°C)	1.1°F (0.6°C)	46th Warmest	Warmest since: 1903	2012
Jan–May 1909 5-Month	46.3°F (7.9°C)	44.9°F (7.2°C)	1.4°F (0.7°C)	94th Coolest	Coolest since: 1908	1940
	46.3°F (7.9°C)	44.9°F (7.2°C)	1.4°F (0.7°C)	35th Warmest	Warmest to Date	2012
	Ties: 2009
Dec 1908–May 1909 6-Month	44.6°F (7.0°C)	43.5°F (6.4°C)	1.1°F (0.6°C)	85th Coolest	Coolest since: 1908	1904
	44.6°F (7.0°C)	43.5°F (6.4°C)	1.1°F (0.6°C)	43rd Warmest	Warmest to Date	2012
	Ties: 1975
Nov 1908–May 1909 7-Month	44.6°F (7.0°C)	43.8°F (6.6°C)	0.8°F (0.4°C)	78th Coolest	Coolest since: 1908	1904
	44.6°F (7.0°C)	43.8°F (6.6°C)	0.8°F (0.4°C)	50th Warmest	Warmest since: 1903	2012
	Ties: 1930, 1937
Oct 1908–May 1909 8-Month	46.2°F (7.9°C)	45.3°F (7.4°C)	0.9°F (0.5°C)	80th Coolest	Coolest since: 1908	1904
	46.2°F (7.9°C)	45.3°F (7.4°C)	0.9°F (0.5°C)	48th Warmest	Warmest since: 1903	2012
	Ties: 1937, 1947
Sep 1908–May 1909 9-Month	48.4°F (9.1°C)	47.9°F (8.8°C)	0.5°F (0.3°C)	76th Coolest	Coolest since: 1908	1904, 1918
	48.4°F (9.1°C)	47.9°F (8.8°C)	0.5°F (0.3°C)	52nd Warmest	Warmest since: 1903	2012
	Ties: 1922
Aug 1908–May 1909 10-Month	50.7°F (10.4°C)	50.5°F (10.3°C)	0.2°F (0.1°C)	72nd Coolest	Coolest since: 1908	1904
	50.7°F (10.4°C)	50.5°F (10.3°C)	0.2°F (0.1°C)	56th Warmest	Warmest since: 1903	2012
	Ties: 1898, 1922, 1973, 1989, 2015
Jul 1908–May 1909 11-Month	53.0°F (11.7°C)	52.7°F (11.5°C)	0.3°F (0.2°C)	69th Coolest	Coolest since: 1908	1904
	53.0°F (11.7°C)	52.7°F (11.5°C)	0.3°F (0.2°C)	59th Warmest	Warmest since: 1903	2012
	Ties: 1975, 2015
Jun 1908–May 1909 12-Month	54.5°F (12.5°C)	54.2°F (12.3°C)	0.3°F (0.2°C)	68th Coolest	Coolest since: 1908	1904
	54.5°F (12.5°C)	54.2°F (12.3°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 1903	2012
	Ties: 1945, 1994
Dec 1907–May 1909 18-Month	51.0°F (10.6°C)	50.6°F (10.3°C)	0.4°F (0.3°C)	76th Coolest	Coolest since: 1908	1905
	51.0°F (10.6°C)	50.6°F (10.3°C)	0.4°F (0.3°C)	51st Warmest	Warmest to Date	2017
	Ties: 1943, 1958, 1987, 1988, 1989, 1994, 2015
Jun 1907–May 1909 24-Month	53.8°F (12.1°C)	54.1°F (12.3°C)	-0.3°F (-0.2°C)	35th Coolest	Coolest since: 1908	1905
	53.8°F (12.1°C)	54.1°F (12.3°C)	-0.3°F (-0.2°C)	92nd Warmest	Warmest since: 1903	2017
	Ties: 1910, 1915, 1959, 1962
Jun 1906–May 1909 36-Month	53.7°F (12.1°C)	54.2°F (12.3°C)	-0.5°F (-0.2°C)	29th Coolest	Coolest since: 1908	1906
	53.7°F (12.1°C)	54.2°F (12.3°C)	-0.5°F (-0.2°C)	97th Warmest	Warmest since: 1903	2018, 2021
	Ties: 1925, 1929, 1971, 1980
Jun 1905–May 1909 48-Month	53.7°F (12.1°C)	54.1°F (12.3°C)	-0.4°F (-0.2°C)	26th Coolest	Coolest since: 1908	1907
	53.7°F (12.1°C)	54.1°F (12.3°C)	-0.4°F (-0.2°C)	99th Warmest	Warmest since: 1903	2019
	Ties: 1913, 1921, 1936, 1937, 1941
Jun 1904–May 1909 60-Month	53.3°F (11.8°C)	54.2°F (12.3°C)	-0.9°F (-0.5°C)	8th Coolest	Coolest since: 1908	1908
	53.3°F (11.8°C)	54.2°F (12.3°C)	-0.9°F (-0.5°C)	116th Warmest	Warmest since: 1904	2020
	Ties: 1967, 1968, 1970

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings