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 1979

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1979 1-Month	32.7°F (0.4°C)	28.9°F (-1.7°C)	3.8°F (2.1°C)	101st Coolest	Coolest since: 1978	1989
	32.7°F (0.4°C)	28.9°F (-1.7°C)	3.8°F (2.1°C)	28th Warmest	Warmest since: 1972	2015
	Ties: 1991
Nov–Dec 1979 2-Month	38.0°F (3.3°C)	34.1°F (1.2°C)	3.9°F (2.1°C)	116th Coolest	Coolest since: 1978	1917
Nov–Dec 1979 2-Month	38.0°F (3.3°C)	34.1°F (1.2°C)	3.9°F (2.1°C)	13th Warmest	Warmest since: 1931	2015
Oct–Dec 1979 3-Month	41.8°F (5.4°C)	39.6°F (4.2°C)	2.2°F (1.2°C)	101st Coolest	Coolest since: 1978	1917
	41.8°F (5.4°C)	39.6°F (4.2°C)	2.2°F (1.2°C)	28th Warmest	Warmest since: 1975	2015
	Ties: 1949
Sep–Dec 1979 4-Month	46.7°F (8.2°C)	45.2°F (7.3°C)	1.5°F (0.9°C)	96th Coolest	Coolest since: 1978	1917
Sep–Dec 1979 4-Month	46.7°F (8.2°C)	45.2°F (7.3°C)	1.5°F (0.9°C)	33rd Warmest	Warmest since: 1973	2015
Aug–Dec 1979 5-Month	51.0°F (10.6°C)	49.8°F (9.9°C)	1.2°F (0.7°C)	94th Coolest	Coolest since: 1978	1917
	51.0°F (10.6°C)	49.8°F (9.9°C)	1.2°F (0.7°C)	35th Warmest	Warmest since: 1975	2015
	Ties: 1994
Jul–Dec 1979 6-Month	54.0°F (12.2°C)	53.2°F (11.8°C)	0.8°F (0.4°C)	83rd Coolest	Coolest since: 1978	1976
	54.0°F (12.2°C)	53.2°F (11.8°C)	0.8°F (0.4°C)	46th Warmest	Warmest since: 1975	1931, 2015
	Ties: 1898, 1938
Jun–Dec 1979 7-Month	55.4°F (13.0°C)	55.1°F (12.8°C)	0.3°F (0.2°C)	68th Coolest	Coolest since: 1978	1917
	55.4°F (13.0°C)	55.1°F (12.8°C)	0.3°F (0.2°C)	61st Warmest	Warmest since: 1975	2015
	Ties: 1928
May–Dec 1979 8-Month	55.7°F (13.2°C)	55.4°F (13.0°C)	0.3°F (0.2°C)	62nd Coolest	Coolest since: 1978	1917
	55.7°F (13.2°C)	55.4°F (13.0°C)	0.3°F (0.2°C)	67th Warmest	Warmest since: 1975	2015
	Ties: 1986
Apr–Dec 1979 9-Month	54.6°F (12.6°C)	54.4°F (12.4°C)	0.2°F (0.2°C)	56th Coolest	Coolest since: 1978	1917
	54.6°F (12.6°C)	54.4°F (12.4°C)	0.2°F (0.2°C)	73rd Warmest	Warmest since: 1977	2015
	Ties: 1988
Mar–Dec 1979 10-Month	53.1°F (11.7°C)	52.6°F (11.4°C)	0.5°F (0.3°C)	76th Coolest	Coolest since: 1978	1917
	53.1°F (11.7°C)	52.6°F (11.4°C)	0.5°F (0.3°C)	53rd Warmest	Warmest since: 1977	2021
	Ties: 1899, 2003, 2009
Feb–Dec 1979 11-Month	49.7°F (9.8°C)	50.2°F (10.1°C)	-0.5°F (-0.3°C)	28th Coolest	Coolest since: 1978	1917
	49.7°F (9.8°C)	50.2°F (10.1°C)	-0.5°F (-0.3°C)	101st Warmest	Warmest since: 1977	2012
	Ties: 1903, 1909, 1910, 1935, 1947, 1969
Jan–Dec 1979 12-Month	47.5°F (8.6°C)	48.1°F (8.9°C)	-0.6°F (-0.3°C)	25th Coolest	Coolest since: 1978	1917
	47.5°F (8.6°C)	48.1°F (8.9°C)	-0.6°F (-0.3°C)	104th Warmest	Warmest since: 1977	1998, 2012
	Ties: 1916, 1935, 1943, 1969, 1981, 1989
Jul 1978–Dec 1979 18-Month	49.5°F (9.7°C)	49.8°F (9.9°C)	-0.3°F (-0.2°C)	32nd Coolest	Coolest since: 1978	1904
	49.5°F (9.7°C)	49.8°F (9.9°C)	-0.3°F (-0.2°C)	96th Warmest	Warmest since: 1975	2012
	Ties: 1903, 1936, 1951, 1962, 1989, 1993, 1996
Jan 1978–Dec 1979 24-Month	47.0°F (8.3°C)	48.1°F (8.9°C)	-1.1°F (-0.6°C)	8th Coolest	Coolest since: 1963	1905
	47.0°F (8.3°C)	48.1°F (8.9°C)	-1.1°F (-0.6°C)	120th Warmest	Warmest since: 1978	2021
	Ties: 1926
Jan 1977–Dec 1979 36-Month	47.3°F (8.5°C)	48.1°F (8.9°C)	-0.8°F (-0.4°C)	12th Coolest	Coolest since: 1978	1905, 1926
	47.3°F (8.5°C)	48.1°F (8.9°C)	-0.8°F (-0.4°C)	115th Warmest	Warmest since: 1977	2012
	Ties: 1907, 1967, 1968
Jan 1976–Dec 1979 48-Month	47.2°F (8.4°C)	48.1°F (8.9°C)	-0.9°F (-0.5°C)	9th Coolest	Coolest since: 1963	1907
	47.2°F (8.4°C)	48.1°F (8.9°C)	-0.9°F (-0.5°C)	117th Warmest	Warmest since: 1978	2021, 2022
	Ties: 1906, 1981
Jan 1975–Dec 1979 60-Month	47.5°F (8.6°C)	48.1°F (8.9°C)	-0.6°F (-0.3°C)	20th Coolest	Coolest since: 1970	1905, 1907
	47.5°F (8.6°C)	48.1°F (8.9°C)	-0.6°F (-0.3°C)	105th Warmest	Warmest since: 1978	2020, 2021
	Ties: 1919, 1962, 1968, 1970

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 23, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings