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, September 1918

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1918 1-Month	56.8°F (13.8°C)	61.7°F (16.5°C)	-4.9°F (-2.7°C)	1st Coolest	Coolest since: 1918	1918
September 1918 1-Month	56.8°F (13.8°C)	61.7°F (16.5°C)	-4.9°F (-2.7°C)	128th Warmest	Warmest since: 1917	1961
Aug–Sep 1918 2-Month	64.4°F (18.0°C)	65.1°F (18.4°C)	-0.7°F (-0.4°C)	35th Coolest	Coolest since: 1917	1963
	64.4°F (18.0°C)	65.1°F (18.4°C)	-0.7°F (-0.4°C)	94th Warmest	Warmest since: 1916	2016
	Ties: 1913, 1929, 1943, 1951, 1957, 1984
Jul–Sep 1918 3-Month	65.7°F (18.7°C)	66.8°F (19.3°C)	-1.1°F (-0.6°C)	19th Coolest	Coolest since: 1917	1924, 1962, 1963, 1976
	65.7°F (18.7°C)	66.8°F (19.3°C)	-1.1°F (-0.6°C)	110th Warmest	Warmest since: 1916	2016
	Ties: 1946, 1974
Jun–Sep 1918 4-Month	65.4°F (18.6°C)	66.7°F (19.3°C)	-1.3°F (-0.7°C)	14th Coolest	Coolest since: 1917	1924
	65.4°F (18.6°C)	66.7°F (19.3°C)	-1.3°F (-0.7°C)	115th Warmest	Warmest since: 1917	2005, 2016
	Ties: 1902, 1917, 1940, 1946
May–Sep 1918 5-Month	65.0°F (18.3°C)	64.8°F (18.2°C)	0.2°F (0.1°C)	60th Coolest	Coolest since: 1917	1924
	65.0°F (18.3°C)	64.8°F (18.2°C)	0.2°F (0.1°C)	69th Warmest	Warmest since: 1911	2018
	Ties: 1969, 1986, 2014
Apr–Sep 1918 6-Month	61.9°F (16.6°C)	61.9°F (16.6°C)	0.0°F (0.0°C)	52nd Coolest	Coolest since: 1917	1907, 1924
	61.9°F (16.6°C)	61.9°F (16.6°C)	0.0°F (0.0°C)	77th Warmest	Warmest since: 1911	2010
	Ties: 1905, 1910, 1943, 1983
Mar–Sep 1918 7-Month	58.6°F (14.8°C)	58.1°F (14.5°C)	0.5°F (0.3°C)	73rd Coolest	Coolest since: 1917	1924
	58.6°F (14.8°C)	58.1°F (14.5°C)	0.5°F (0.3°C)	56th Warmest	Warmest since: 1913	2010
	Ties: 1899, 1925, 1929, 1946, 1968, 1983, 2013
Feb–Sep 1918 8-Month	54.5°F (12.5°C)	54.1°F (12.3°C)	0.4°F (0.2°C)	68th Coolest	Coolest since: 1917	1924
Feb–Sep 1918 8-Month	54.5°F (12.5°C)	54.1°F (12.3°C)	0.4°F (0.2°C)	61st Warmest	Warmest since: 1911	2012
Jan–Sep 1918 9-Month	50.0°F (10.0°C)	51.0°F (10.6°C)	-1.0°F (-0.6°C)	24th Coolest	Coolest since: 1917	1940
	50.0°F (10.0°C)	51.0°F (10.6°C)	-1.0°F (-0.6°C)	105th Warmest	Warmest since: 1916	2012
	Ties: 1923, 1928, 1966, 1972
Dec 1917–Sep 1918 10-Month	46.9°F (8.3°C)	48.8°F (9.3°C)	-1.9°F (-1.0°C)	6th Coolest	Coolest since: 1907	1904
	46.9°F (8.3°C)	48.8°F (9.3°C)	-1.9°F (-1.0°C)	122nd Warmest	Warmest since: 1917	2012
	Ties: 1907
Nov 1917–Sep 1918 11-Month	45.8°F (7.7°C)	47.9°F (8.8°C)	-2.1°F (-1.1°C)	5th Coolest	Coolest since: 1904	1904
Nov 1917–Sep 1918 11-Month	45.8°F (7.7°C)	47.9°F (8.8°C)	-2.1°F (-1.1°C)	123rd Warmest	Warmest since: 1917	2012
Oct 1917–Sep 1918 12-Month	45.7°F (7.6°C)	48.1°F (8.9°C)	-2.4°F (-1.3°C)	2nd Coolest	Coolest since: 1904	1904
Oct 1917–Sep 1918 12-Month	45.7°F (7.6°C)	48.1°F (8.9°C)	-2.4°F (-1.3°C)	126th Warmest	Warmest since: 1917	2012
Apr 1917–Sep 1918 18-Month	50.5°F (10.3°C)	52.7°F (11.5°C)	-2.2°F (-1.2°C)	1st Coolest	Coolest since: 1918	1918
Apr 1917–Sep 1918 18-Month	50.5°F (10.3°C)	52.7°F (11.5°C)	-2.2°F (-1.2°C)	127th Warmest	Warmest since: 1917	2012
Oct 1916–Sep 1918 24-Month	46.2°F (7.9°C)	48.1°F (8.9°C)	-1.9°F (-1.0°C)	2nd Coolest	Coolest since: 1905	1905
Oct 1916–Sep 1918 24-Month	46.2°F (7.9°C)	48.1°F (8.9°C)	-1.9°F (-1.0°C)	125th Warmest	Warmest since: 1917	2017
Oct 1915–Sep 1918 36-Month	46.7°F (8.2°C)	48.2°F (9.0°C)	-1.5°F (-0.8°C)	2nd Coolest	Coolest since: 1918	1979
Oct 1915–Sep 1918 36-Month	46.7°F (8.2°C)	48.2°F (9.0°C)	-1.5°F (-0.8°C)	124th Warmest	Warmest since: 1917	2018
Oct 1914–Sep 1918 48-Month	46.9°F (8.3°C)	48.1°F (8.9°C)	-1.2°F (-0.6°C)	3rd Coolest	Coolest since: 1907	1907
Oct 1914–Sep 1918 48-Month	46.9°F (8.3°C)	48.1°F (8.9°C)	-1.2°F (-0.6°C)	122nd Warmest	Warmest since: 1917	2019
Oct 1913–Sep 1918 60-Month	47.1°F (8.4°C)	48.1°F (8.9°C)	-1.0°F (-0.5°C)	2nd Coolest	Coolest since: 1908	1908
	47.1°F (8.4°C)	48.1°F (8.9°C)	-1.0°F (-0.5°C)	122nd Warmest	Warmest since: 1917	2020
	Ties: 1905, 1907, 1981, 1982

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings