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 1918

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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 1918 1-Month	34.4°F (1.3°C)	28.9°F (-1.7°C)	5.5°F (3.0°C)	114th Coolest	Coolest since: 1917	1989
	34.4°F (1.3°C)	28.9°F (-1.7°C)	5.5°F (3.0°C)	15th Warmest	Warmest to Date	2015
	Ties: 1990
Nov–Dec 1918 2-Month	37.0°F (2.8°C)	34.1°F (1.2°C)	2.9°F (1.6°C)	106th Coolest	Coolest since: 1917	1917
	37.0°F (2.8°C)	34.1°F (1.2°C)	2.9°F (1.6°C)	23rd Warmest	Warmest to Date	2015
	Ties: 2004
Oct–Dec 1918 3-Month	42.5°F (5.8°C)	39.6°F (4.2°C)	2.9°F (1.6°C)	111th Coolest	Coolest since: 1917	1917
	42.5°F (5.8°C)	39.6°F (4.2°C)	2.9°F (1.6°C)	18th Warmest	Warmest to Date	2015
	Ties: 2016
Sep–Dec 1918 4-Month	46.1°F (7.8°C)	45.2°F (7.3°C)	0.9°F (0.5°C)	82nd Coolest	Coolest since: 1917	1917
	46.1°F (7.8°C)	45.2°F (7.3°C)	0.9°F (0.5°C)	47th Warmest	Warmest since: 1913	2015
	Ties: 1947, 1965
Aug–Dec 1918 5-Month	51.2°F (10.7°C)	49.8°F (9.9°C)	1.4°F (0.8°C)	99th Coolest	Coolest since: 1917	1917
	51.2°F (10.7°C)	49.8°F (9.9°C)	1.4°F (0.8°C)	30th Warmest	Warmest since: 1900	2015
	Ties: 1946, 1953
Jul–Dec 1918 6-Month	54.1°F (12.3°C)	53.2°F (11.8°C)	0.9°F (0.5°C)	89th Coolest	Coolest since: 1917	1976
	54.1°F (12.3°C)	53.2°F (11.8°C)	0.9°F (0.5°C)	40th Warmest	Warmest since: 1913	1931, 2015
	Ties: 1911, 1913, 1928, 1936, 1948
Jun–Dec 1918 7-Month	55.5°F (13.1°C)	55.1°F (12.8°C)	0.4°F (0.3°C)	72nd Coolest	Coolest since: 1917	1917
	55.5°F (13.1°C)	55.1°F (12.8°C)	0.4°F (0.3°C)	57th Warmest	Warmest since: 1913	2015
	Ties: 1957, 1983, 2008
May–Dec 1918 8-Month	56.6°F (13.7°C)	55.4°F (13.0°C)	1.2°F (0.7°C)	99th Coolest	Coolest since: 1917	1917
May–Dec 1918 8-Month	56.6°F (13.7°C)	55.4°F (13.0°C)	1.2°F (0.7°C)	30th Warmest	Warmest since: 1911	2015
Apr–Dec 1918 9-Month	55.4°F (13.0°C)	54.4°F (12.4°C)	1.0°F (0.6°C)	95th Coolest	Coolest since: 1917	1917
	55.4°F (13.0°C)	54.4°F (12.4°C)	1.0°F (0.6°C)	34th Warmest	Warmest since: 1911	2015
	Ties: 1922, 2002
Mar–Dec 1918 10-Month	53.8°F (12.1°C)	52.6°F (11.4°C)	1.2°F (0.7°C)	101st Coolest	Coolest since: 1917	1917
	53.8°F (12.1°C)	52.6°F (11.4°C)	1.2°F (0.7°C)	28th Warmest	Warmest since: 1900	2021
	Ties: 1941, 1953, 2005
Feb–Dec 1918 11-Month	51.2°F (10.7°C)	50.2°F (10.1°C)	1.0°F (0.6°C)	98th Coolest	Coolest since: 1917	1917
	51.2°F (10.7°C)	50.2°F (10.1°C)	1.0°F (0.6°C)	31st Warmest	Warmest since: 1900	2012
	Ties: 1900, 1957, 2007
Jan–Dec 1918 12-Month	48.1°F (8.9°C)	48.1°F (8.9°C)	0.0°F (0.0°C)	57th Coolest	Coolest since: 1917	1917
	48.1°F (8.9°C)	48.1°F (8.9°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1913	1998, 2012
	Ties: 1934, 1970, 1988
Jul 1917–Dec 1918 18-Month	48.5°F (9.2°C)	49.8°F (9.9°C)	-1.3°F (-0.7°C)	7th Coolest	Coolest since: 1917	1904
Jul 1917–Dec 1918 18-Month	48.5°F (9.2°C)	49.8°F (9.9°C)	-1.3°F (-0.7°C)	121st Warmest	Warmest since: 1916	2012
Jan 1917–Dec 1918 24-Month	46.6°F (8.1°C)	48.1°F (8.9°C)	-1.5°F (-0.8°C)	4th Coolest	Coolest since: 1917	1905
Jan 1917–Dec 1918 24-Month	46.6°F (8.1°C)	48.1°F (8.9°C)	-1.5°F (-0.8°C)	124th Warmest	Warmest since: 1916	2021
Jan 1916–Dec 1918 36-Month	46.9°F (8.3°C)	48.1°F (8.9°C)	-1.2°F (-0.6°C)	4th Coolest	Coolest since: 1917	1905, 1926
	46.9°F (8.3°C)	48.1°F (8.9°C)	-1.2°F (-0.6°C)	123rd Warmest	Warmest since: 1916	2012
	Ties: 1904
Jan 1915–Dec 1918 48-Month	47.1°F (8.4°C)	48.1°F (8.9°C)	-1.0°F (-0.5°C)	6th Coolest	Coolest since: 1917	1907
	47.1°F (8.4°C)	48.1°F (8.9°C)	-1.0°F (-0.5°C)	120th Warmest	Warmest since: 1916	2021, 2022
	Ties: 1927, 1963
Jan 1914–Dec 1918 60-Month	47.1°F (8.4°C)	48.1°F (8.9°C)	-1.0°F (-0.5°C)	3rd Coolest	Coolest since: 1908	1905, 1907
	47.1°F (8.4°C)	48.1°F (8.9°C)	-1.0°F (-0.5°C)	122nd Warmest	Warmest since: 1917	2020, 2021
	Ties: 1908

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published June 2023, retrieved on June 9, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings