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 1900

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1900 1-Month	28.9°F (-1.7°C)	28.9°F (-1.7°C)	0.0°F (0.0°C)	52nd Coolest	Coolest since: 1898	1989
	28.9°F (-1.7°C)	28.9°F (-1.7°C)	0.0°F (0.0°C)	77th Warmest	Warmest since: 1899	2015
	Ties: 1921, 2009
Nov–Dec 1900 2-Month	34.8°F (1.6°C)	34.1°F (1.2°C)	0.7°F (0.4°C)	70th Coolest	Coolest since: 1899	1917
	34.8°F (1.6°C)	34.1°F (1.2°C)	0.7°F (0.4°C)	59th Warmest	Warmest since: 1897	2015
	Ties: 1911, 1997, 2008
Oct–Dec 1900 3-Month	42.0°F (5.6°C)	39.6°F (4.2°C)	2.4°F (1.4°C)	106th Coolest	Coolest since: 1899	1917
	42.0°F (5.6°C)	39.6°F (4.2°C)	2.4°F (1.4°C)	23rd Warmest	Warmest to Date	2015
	Ties: 1913
Sep–Dec 1900 4-Month	48.0°F (8.9°C)	45.1°F (7.3°C)	2.9°F (1.6°C)	118th Coolest	Coolest since: 1899	1917
	48.0°F (8.9°C)	45.1°F (7.3°C)	2.9°F (1.6°C)	11th Warmest	Warmest to Date	2015
	Ties: 1982, 1990
Aug–Dec 1900 5-Month	53.0°F (11.7°C)	49.7°F (9.8°C)	3.3°F (1.9°C)	123rd Coolest	Coolest since: 1899	1917
	53.0°F (11.7°C)	49.7°F (9.8°C)	3.3°F (1.9°C)	6th Warmest	Warmest to Date	2015
	Ties: 2011
Jul–Dec 1900 6-Month	56.2°F (13.4°C)	53.2°F (11.8°C)	3.0°F (1.6°C)	122nd Coolest	Coolest since: 1899	1976
Jul–Dec 1900 6-Month	56.2°F (13.4°C)	53.2°F (11.8°C)	3.0°F (1.6°C)	7th Warmest	Warmest to Date	1931, 2015
Jun–Dec 1900 7-Month	57.8°F (14.3°C)	55.0°F (12.8°C)	2.8°F (1.5°C)	123rd Coolest	Coolest since: 1899	1917
	57.8°F (14.3°C)	55.0°F (12.8°C)	2.8°F (1.5°C)	6th Warmest	Warmest to Date	2015
	Ties: 2020
May–Dec 1900 8-Month	57.9°F (14.4°C)	55.3°F (12.9°C)	2.6°F (1.5°C)	123rd Coolest	Coolest since: 1899	1917
	57.9°F (14.4°C)	55.3°F (12.9°C)	2.6°F (1.5°C)	6th Warmest	Warmest to Date	2015
	Ties: 2018
Apr–Dec 1900 9-Month	56.7°F (13.7°C)	54.4°F (12.4°C)	2.3°F (1.3°C)	122nd Coolest	Coolest since: 1899	1917
	56.7°F (13.7°C)	54.4°F (12.4°C)	2.3°F (1.3°C)	7th Warmest	Warmest to Date	2015
	Ties: 1991
Mar–Dec 1900 10-Month	54.0°F (12.2°C)	52.6°F (11.4°C)	1.4°F (0.8°C)	108th Coolest	Coolest since: 1899	1917
	54.0°F (12.2°C)	52.6°F (11.4°C)	1.4°F (0.8°C)	21st Warmest	Warmest to Date	2021
	Ties: 1990, 2018
Feb–Dec 1900 11-Month	51.2°F (10.7°C)	50.2°F (10.1°C)	1.0°F (0.6°C)	98th Coolest	Coolest since: 1899	1917
	51.2°F (10.7°C)	50.2°F (10.1°C)	1.0°F (0.6°C)	31st Warmest	Warmest to Date	2012
	Ties: 1918, 1957, 2007
Jan–Dec 1900 12-Month	49.2°F (9.6°C)	48.1°F (8.9°C)	1.1°F (0.7°C)	100th Coolest	Coolest since: 1899	1917
	49.2°F (9.6°C)	48.1°F (8.9°C)	1.1°F (0.7°C)	29th Warmest	Warmest since: 1898	1998, 2012
	Ties: 1898, 1932, 1933, 1959, 1987
Jul 1899–Dec 1900 18-Month	50.6°F (10.3°C)	49.8°F (9.9°C)	0.8°F (0.4°C)	92nd Coolest	Coolest since: 1899	1904
	50.6°F (10.3°C)	49.8°F (9.9°C)	0.8°F (0.4°C)	36th Warmest	Warmest since: 1898	2012
	Ties: 1933, 1942, 1983, 1987
Jan 1899–Dec 1900 24-Month	48.6°F (9.2°C)	48.2°F (9.0°C)	0.4°F (0.2°C)	85th Coolest	Coolest since: 1899	1905
	48.6°F (9.2°C)	48.2°F (9.0°C)	0.4°F (0.2°C)	43rd Warmest	Warmest since: 1899	2021
	Ties: 1898, 1899, 1919, 1942, 1986, 1988, 2009
Jan 1898–Dec 1900 36-Month	48.8°F (9.3°C)	48.1°F (8.9°C)	0.7°F (0.4°C)	89th Coolest	Coolest since: 1899	1905, 1926
	48.8°F (9.3°C)	48.1°F (8.9°C)	0.7°F (0.4°C)	38th Warmest	Warmest to Date	2012
	Ties: 1922, 1934, 1987, 2005
Jan 1897–Dec 1900 48-Month	48.6°F (9.2°C)	48.1°F (8.9°C)	0.5°F (0.3°C)	82nd Coolest	Coolest since: 1899	1907
	48.6°F (9.2°C)	48.1°F (8.9°C)	0.5°F (0.3°C)	44th Warmest	Warmest to Date	2021, 2022
	Ties: 1923, 1939, 1947, 1951, 1957, 1986, 1988
Jan 1896–Dec 1900 60-Month	48.5°F (9.2°C)	48.1°F (8.9°C)	0.4°F (0.3°C)	76th Coolest	Coolest since: 1899	1905, 1907
	48.5°F (9.2°C)	48.1°F (8.9°C)	0.4°F (0.3°C)	49th Warmest	Warmest to Date	2020, 2021
	Ties: 1948, 1951

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings