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.

Pennsylvania

Average Temperature Rankings, December 1966

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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
December 1966 1-Month	28.7°F (-1.8°C)	28.9°F (-1.7°C)	-0.2°F (-0.1°C)	50th Coolest	Coolest since: 1963	1989
December 1966 1-Month	28.7°F (-1.8°C)	28.9°F (-1.7°C)	-0.2°F (-0.1°C)	79th Warmest	Warmest since: 1965	2015
Nov–Dec 1966 2-Month	34.6°F (1.4°C)	34.1°F (1.2°C)	0.5°F (0.2°C)	61st Coolest	Coolest since: 1963	1917
	34.6°F (1.4°C)	34.1°F (1.2°C)	0.5°F (0.2°C)	68th Warmest	Warmest since: 1965	2015
	Ties: 1996, 2019
Oct–Dec 1966 3-Month	39.0°F (3.9°C)	39.6°F (4.2°C)	-0.6°F (-0.3°C)	40th Coolest	Coolest since: 1962	1917
	39.0°F (3.9°C)	39.6°F (4.2°C)	-0.6°F (-0.3°C)	89th Warmest	Warmest since: 1965	2015
	Ties: 1906, 1914, 1919, 1993
Sep–Dec 1966 4-Month	44.0°F (6.7°C)	45.2°F (7.3°C)	-1.2°F (-0.6°C)	27th Coolest	Coolest since: 1962	1917
	44.0°F (6.7°C)	45.2°F (7.3°C)	-1.2°F (-0.6°C)	102nd Warmest	Warmest since: 1965	2015
	Ties: 1907, 1988
Aug–Dec 1966 5-Month	49.0°F (9.4°C)	49.8°F (9.9°C)	-0.8°F (-0.5°C)	28th Coolest	Coolest since: 1963	1917
Aug–Dec 1966 5-Month	49.0°F (9.4°C)	49.8°F (9.9°C)	-0.8°F (-0.5°C)	101st Warmest	Warmest since: 1965	2015
Jul–Dec 1966 6-Month	52.8°F (11.6°C)	53.2°F (11.8°C)	-0.4°F (-0.2°C)	31st Coolest	Coolest since: 1963	1976
	52.8°F (11.6°C)	53.2°F (11.8°C)	-0.4°F (-0.2°C)	98th Warmest	Warmest since: 1965	1931, 2015
	Ties: 1919, 1935, 1944, 1972, 1974, 1980, 1997
Jun–Dec 1966 7-Month	54.8°F (12.7°C)	55.1°F (12.8°C)	-0.3°F (-0.1°C)	37th Coolest	Coolest since: 1963	1917
	54.8°F (12.7°C)	55.1°F (12.8°C)	-0.3°F (-0.1°C)	92nd Warmest	Warmest since: 1965	2015
	Ties: 1927, 1942
May–Dec 1966 8-Month	54.7°F (12.6°C)	55.4°F (13.0°C)	-0.7°F (-0.4°C)	27th Coolest	Coolest since: 1963	1917
	54.7°F (12.6°C)	55.4°F (13.0°C)	-0.7°F (-0.4°C)	102nd Warmest	Warmest since: 1965	2015
	Ties: 1940, 1969, 1972
Apr–Dec 1966 9-Month	53.5°F (11.9°C)	54.4°F (12.4°C)	-0.9°F (-0.5°C)	20th Coolest	Coolest since: 1963	1917
	53.5°F (11.9°C)	54.4°F (12.4°C)	-0.9°F (-0.5°C)	109th Warmest	Warmest since: 1965	2015
	Ties: 1963, 1972
Mar–Dec 1966 10-Month	51.9°F (11.1°C)	52.6°F (11.4°C)	-0.7°F (-0.3°C)	24th Coolest	Coolest since: 1963	1917
	51.9°F (11.1°C)	52.6°F (11.4°C)	-0.7°F (-0.3°C)	105th Warmest	Warmest since: 1965	2021
	Ties: 1903, 1963, 1980
Feb–Dec 1966 11-Month	49.6°F (9.8°C)	50.2°F (10.1°C)	-0.6°F (-0.3°C)	25th Coolest	Coolest since: 1963	1917
	49.6°F (9.8°C)	50.2°F (10.1°C)	-0.6°F (-0.3°C)	104th Warmest	Warmest since: 1965	2012
	Ties: 1920, 1937
Jan–Dec 1966 12-Month	47.3°F (8.5°C)	48.1°F (8.9°C)	-0.8°F (-0.4°C)	21st Coolest	Coolest since: 1963	1917
	47.3°F (8.5°C)	48.1°F (8.9°C)	-0.8°F (-0.4°C)	108th Warmest	Warmest since: 1965	1998, 2012
	Ties: 1980
Jul 1965–Dec 1966 18-Month	49.3°F (9.6°C)	49.8°F (9.9°C)	-0.5°F (-0.3°C)	19th Coolest	Coolest since: 1963	1904
	49.3°F (9.6°C)	49.8°F (9.9°C)	-0.5°F (-0.3°C)	109th Warmest	Warmest since: 1965	2012
	Ties: 1912, 1914, 1916, 1961, 1976, 1981, 1982
Jan 1965–Dec 1966 24-Month	47.4°F (8.6°C)	48.1°F (8.9°C)	-0.7°F (-0.3°C)	17th Coolest	Coolest since: 1964	1905
	47.4°F (8.6°C)	48.1°F (8.9°C)	-0.7°F (-0.3°C)	111th Warmest	Warmest since: 1965	2021
	Ties: 1902, 1907, 1915, 1941, 1962, 1977, 1980, 1981
Jan 1964–Dec 1966 36-Month	47.6°F (8.7°C)	48.1°F (8.9°C)	-0.5°F (-0.2°C)	27th Coolest	Coolest since: 1965	1905, 1926
	47.6°F (8.7°C)	48.1°F (8.9°C)	-0.5°F (-0.2°C)	100th Warmest	Warmest since: 1961	2012
	Ties: 1924, 1958, 1960, 1982
Jan 1963–Dec 1966 48-Month	47.4°F (8.6°C)	48.1°F (8.9°C)	-0.7°F (-0.3°C)	15th Coolest	Coolest since: 1965	1907
	47.4°F (8.6°C)	48.1°F (8.9°C)	-0.7°F (-0.3°C)	111th Warmest	Warmest since: 1964	2021, 2022
	Ties: 1919, 1964, 1968, 1969
Jan 1962–Dec 1966 60-Month	47.3°F (8.5°C)	48.1°F (8.9°C)	-0.8°F (-0.4°C)	8th Coolest	Coolest since: 1964	1905, 1907
	47.3°F (8.5°C)	48.1°F (8.9°C)	-0.8°F (-0.4°C)	117th Warmest	Warmest since: 1965	2020, 2021
	Ties: 1906, 1920, 1926, 1964, 1967, 1981, 1982

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published June 2023, retrieved on June 10, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings