Climate at a Glance | Statewide Rankings | National Centers for Environmental Information (NCEI)

Statewide Rankings

Parameter:

Year:

Month:

State:

Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. 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

December 1966 Average Temperature Rankings

View Period (Months):

All

Download:

CSV JSON XML

Record Coolest

Bottom ⅒

Bottom ⅓

Normal

Top ⅓

Top ⅒

Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
December 1966 1-Month	35.8°F (2.1°C)	36.2°F (2.3°C)	-0.4°F	48th Coolest	Coolest since: 1963	1989
	35.8°F (2.1°C)	36.2°F (2.3°C)	-0.4°F	83rd Warmest	Warmest since: 1965	2015
	Ties: 1898
Nov–Dec 1966 2-Month	41.2°F (5.1°C)	41.0°F (5.0°C)	0.2°F	54th Coolest	Coolest since: 1963	1917
Nov–Dec 1966 2-Month	41.2°F (5.1°C)	41.0°F (5.0°C)	0.2°F	77th Warmest	Warmest since: 1965	2015
Oct–Dec 1966 3-Month	45.6°F (7.6°C)	46.1°F (7.8°C)	-0.5°F	41st Coolest	Coolest since: 1963	1917
	45.6°F (7.6°C)	46.1°F (7.8°C)	-0.5°F	90th Warmest	Warmest since: 1965	2015
	Ties: 1906, 1929, 1942
Sep–Dec 1966 4-Month	50.6°F (10.3°C)	51.4°F (10.8°C)	-0.8°F	30th Coolest	Coolest since: 1963	1917
	50.6°F (10.3°C)	51.4°F (10.8°C)	-0.8°F	101st Warmest	Warmest since: 1965	2015
	Ties: 1950, 1952
Aug–Dec 1966 5-Month	55.4°F (13.0°C)	55.9°F (13.3°C)	-0.5°F	36th Coolest	Coolest since: 1963	1917
	55.4°F (13.0°C)	55.9°F (13.3°C)	-0.5°F	95th Warmest	Warmest since: 1965	2015
	Ties: 1899, 1905
Jul–Dec 1966 6-Month	58.9°F (14.9°C)	59.2°F (15.1°C)	-0.3°F	37th Coolest	Coolest since: 1963	1917
Jul–Dec 1966 6-Month	58.9°F (14.9°C)	59.2°F (15.1°C)	-0.3°F	94th Warmest	Warmest since: 1965	2015
Jun–Dec 1966 7-Month	60.7°F (15.9°C)	60.8°F (16.0°C)	-0.1°F	45th Coolest	Coolest since: 1965	1917
	60.7°F (15.9°C)	60.8°F (16.0°C)	-0.1°F	86th Warmest	Warmest since: 1964	2015
	Ties: 1943, 1947
May–Dec 1966 8-Month	60.6°F (15.9°C)	61.0°F (16.1°C)	-0.4°F	36th Coolest	Coolest since: 1963	1917
	60.6°F (15.9°C)	61.0°F (16.1°C)	-0.4°F	95th Warmest	Warmest since: 1965	2015
	Ties: 1914
Apr–Dec 1966 9-Month	59.2°F (15.1°C)	60.0°F (15.6°C)	-0.8°F	22nd Coolest	Coolest since: 1963	1917
	59.2°F (15.1°C)	60.0°F (15.6°C)	-0.8°F	109th Warmest	Warmest since: 1965	2015
	Ties: 1928, 1937
Mar–Dec 1966 10-Month	57.7°F (14.3°C)	58.3°F (14.6°C)	-0.6°F	26th Coolest	Coolest since: 1963	1917
Mar–Dec 1966 10-Month	57.7°F (14.3°C)	58.3°F (14.6°C)	-0.6°F	105th Warmest	Warmest since: 1965	2012
Feb–Dec 1966 11-Month	55.5°F (13.1°C)	56.1°F (13.4°C)	-0.6°F	32nd Coolest	Coolest since: 1963	1917
Feb–Dec 1966 11-Month	55.5°F (13.1°C)	56.1°F (13.4°C)	-0.6°F	99th Warmest	Warmest since: 1965	2012
Jan–Dec 1966 12-Month	53.3°F (11.8°C)	54.2°F (12.3°C)	-0.9°F	21st Coolest	Coolest since: 1963	1904
	53.3°F (11.8°C)	54.2°F (12.3°C)	-0.9°F	110th Warmest	Warmest since: 1965	2012
	Ties: 1899, 1910, 1934
Jul 1965–Dec 1966 18-Month	55.2°F (12.9°C)	55.9°F (13.3°C)	-0.7°F	19th Coolest	Coolest since: 1963	1904
Jul 1965–Dec 1966 18-Month	55.2°F (12.9°C)	55.9°F (13.3°C)	-0.7°F	111th Warmest	Warmest since: 1965	2012
Jan 1965–Dec 1966 24-Month	53.5°F (11.9°C)	54.2°F (12.3°C)	-0.7°F	25th Coolest	Coolest since: 1963	1905
	53.5°F (11.9°C)	54.2°F (12.3°C)	-0.7°F	105th Warmest	Warmest since: 1965	2012
	Ties: 1926
Jan 1964–Dec 1966 36-Month	53.7°F (12.1°C)	54.2°F (12.3°C)	-0.5°F	31st Coolest	Coolest since: 1965	1905
	53.7°F (12.1°C)	54.2°F (12.3°C)	-0.5°F	98th Warmest	Warmest since: 1961	2021
	Ties: 1937, 1941
Jan 1963–Dec 1966 48-Month	53.5°F (11.9°C)	54.2°F (12.3°C)	-0.7°F	18th Coolest	Coolest since: 1965	1907
Jan 1963–Dec 1966 48-Month	53.5°F (11.9°C)	54.2°F (12.3°C)	-0.7°F	110th Warmest	Warmest since: 1964	2020
Jan 1962–Dec 1966 60-Month	53.4°F (11.9°C)	54.2°F (12.3°C)	-0.8°F	11th Coolest	Coolest since: 1928	1905
Jan 1962–Dec 1966 60-Month	53.4°F (11.9°C)	54.2°F (12.3°C)	-0.8°F	116th Warmest	Warmest since: 1965	2020, 2021

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on April 2, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings

Climate at a Glance Statewide Rankings

Statewide Rankings

Delaware

December 1966 Average Temperature Rankings

Citing This Page

Success

Error