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 1940

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1940 1-Month	61.0°F (16.1°C)	62.1°F (16.7°C)	-1.1°F (-0.6°C)	40th Coolest	Coolest since: 1938	1967
	61.0°F (16.1°C)	62.1°F (16.7°C)	-1.1°F (-0.6°C)	89th Warmest	Warmest since: 1939	2004
	Ties: 1981
Apr–May 1940 2-Month	54.0°F (12.2°C)	57.1°F (13.9°C)	-3.1°F (-1.7°C)	3rd Coolest	Coolest since: 1935	1907
	54.0°F (12.2°C)	57.1°F (13.9°C)	-3.1°F (-1.7°C)	126th Warmest	Warmest since: 1939	2019
	Ties: 1935
Mar–May 1940 3-Month	48.5°F (9.2°C)	52.3°F (11.3°C)	-3.8°F (-2.1°C)	1st Coolest	Coolest since: 1940	1940
Mar–May 1940 3-Month	48.5°F (9.2°C)	52.3°F (11.3°C)	-3.8°F (-2.1°C)	128th Warmest	Warmest since: 1939	2012
Feb–May 1940 4-Month	44.7°F (7.1°C)	47.8°F (8.8°C)	-3.1°F (-1.7°C)	6th Coolest	Coolest since: 1934	1934
Feb–May 1940 4-Month	44.7°F (7.1°C)	47.8°F (8.8°C)	-3.1°F (-1.7°C)	123rd Warmest	Warmest since: 1939	2012
Jan–May 1940 5-Month	40.1°F (4.5°C)	44.9°F (7.2°C)	-4.8°F (-2.7°C)	1st Coolest	Coolest since: 1940	1940
Jan–May 1940 5-Month	40.1°F (4.5°C)	44.9°F (7.2°C)	-4.8°F (-2.7°C)	128th Warmest	Warmest since: 1939	2012
Dec 1939–May 1940 6-Month	39.6°F (4.2°C)	43.5°F (6.4°C)	-3.9°F (-2.2°C)	2nd Coolest	Coolest since: 1904	1904
Dec 1939–May 1940 6-Month	39.6°F (4.2°C)	43.5°F (6.4°C)	-3.9°F (-2.2°C)	126th Warmest	Warmest since: 1939	2012
Nov 1939–May 1940 7-Month	39.9°F (4.4°C)	43.8°F (6.6°C)	-3.9°F (-2.2°C)	2nd Coolest	Coolest since: 1904	1904
Nov 1939–May 1940 7-Month	39.9°F (4.4°C)	43.8°F (6.6°C)	-3.9°F (-2.2°C)	126th Warmest	Warmest since: 1939	2012
Oct 1939–May 1940 8-Month	42.0°F (5.6°C)	45.3°F (7.4°C)	-3.3°F (-1.8°C)	3rd Coolest	Coolest since: 1905	1904
Oct 1939–May 1940 8-Month	42.0°F (5.6°C)	45.3°F (7.4°C)	-3.3°F (-1.8°C)	125th Warmest	Warmest since: 1939	2012
Sep 1939–May 1940 9-Month	44.9°F (7.2°C)	47.8°F (8.8°C)	-2.9°F (-1.6°C)	4th Coolest	Coolest since: 1918	1904, 1918
Sep 1939–May 1940 9-Month	44.9°F (7.2°C)	47.8°F (8.8°C)	-2.9°F (-1.6°C)	124th Warmest	Warmest since: 1939	2012
Aug 1939–May 1940 10-Month	48.0°F (8.9°C)	50.4°F (10.2°C)	-2.4°F (-1.3°C)	4th Coolest	Coolest since: 1918	1904
Aug 1939–May 1940 10-Month	48.0°F (8.9°C)	50.4°F (10.2°C)	-2.4°F (-1.3°C)	124th Warmest	Warmest since: 1939	2012
Jul 1939–May 1940 11-Month	50.4°F (10.2°C)	52.7°F (11.5°C)	-2.3°F (-1.3°C)	4th Coolest	Coolest since: 1918	1904
Jul 1939–May 1940 11-Month	50.4°F (10.2°C)	52.7°F (11.5°C)	-2.3°F (-1.3°C)	124th Warmest	Warmest since: 1939	2012
Jun 1939–May 1940 12-Month	52.3°F (11.3°C)	54.2°F (12.3°C)	-1.9°F (-1.0°C)	4th Coolest	Coolest since: 1918	1904
Jun 1939–May 1940 12-Month	52.3°F (11.3°C)	54.2°F (12.3°C)	-1.9°F (-1.0°C)	124th Warmest	Warmest since: 1939	2012
Dec 1938–May 1940 18-Month	49.8°F (9.9°C)	50.6°F (10.3°C)	-0.8°F (-0.4°C)	22nd Coolest	Coolest since: 1936	1905
	49.8°F (9.9°C)	50.6°F (10.3°C)	-0.8°F (-0.4°C)	105th Warmest	Warmest since: 1939	2017
	Ties: 1916, 1928, 1961, 1967, 1971
Jun 1938–May 1940 24-Month	53.7°F (12.1°C)	54.2°F (12.3°C)	-0.5°F (-0.2°C)	31st Coolest	Coolest since: 1936	1905
	53.7°F (12.1°C)	54.2°F (12.3°C)	-0.5°F (-0.2°C)	96th Warmest	Warmest since: 1939	2017
	Ties: 1900, 1924, 1965
Jun 1937–May 1940 36-Month	53.9°F (12.2°C)	54.2°F (12.3°C)	-0.3°F (-0.1°C)	38th Coolest	Coolest since: 1937	1906
	53.9°F (12.2°C)	54.2°F (12.3°C)	-0.3°F (-0.1°C)	88th Warmest	Warmest since: 1939	2018, 2021
	Ties: 1913, 1937, 1978
Jun 1936–May 1940 48-Month	54.1°F (12.3°C)	54.1°F (12.3°C)	0.0°F (0.0°C)	53rd Coolest	Coolest since: 1938	1907
	54.1°F (12.3°C)	54.1°F (12.3°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1939	2019
	Ties: 1903, 1959, 1962, 1972, 1984
Jun 1935–May 1940 60-Month	53.9°F (12.2°C)	54.2°F (12.3°C)	-0.3°F (-0.1°C)	37th Coolest	Coolest since: 1938	1908
	53.9°F (12.2°C)	54.2°F (12.3°C)	-0.3°F (-0.1°C)	87th Warmest	Warmest since: 1939	2020
	Ties: 1901, 1913, 1916, 1922, 1931, 1944

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings