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, October 1999

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
October 1999 1-Month	49.3°F (9.6°C)	50.6°F (10.3°C)	-1.3°F (-0.7°C)	38th Coolest	Coolest since: 1994	1925
	49.3°F (9.6°C)	50.6°F (10.3°C)	-1.3°F (-0.7°C)	91st Warmest	Warmest since: 1998	2007
	Ties: 1926, 1945, 1994
Sep–Oct 1999 2-Month	56.0°F (13.3°C)	56.1°F (13.4°C)	-0.1°F (-0.1°C)	50th Coolest	Coolest since: 1997	1917
	56.0°F (13.3°C)	56.1°F (13.4°C)	-0.1°F (-0.1°C)	79th Warmest	Warmest since: 1998	1900
	Ties: 1950, 1977, 2001
Aug–Oct 1999 3-Month	60.2°F (15.7°C)	60.2°F (15.7°C)	0.0°F (0.0°C)	51st Coolest	Coolest since: 1997	1976
	60.2°F (15.7°C)	60.2°F (15.7°C)	0.0°F (0.0°C)	78th Warmest	Warmest since: 1998	1900
	Ties: 1926, 1977
Jul–Oct 1999 4-Month	63.6°F (17.6°C)	62.7°F (17.1°C)	0.9°F (0.5°C)	88th Coolest	Coolest since: 1997	1976
	63.6°F (17.6°C)	62.7°F (17.1°C)	0.9°F (0.5°C)	41st Warmest	Warmest since: 1998	1900
	Ties: 1908, 1938, 1980
Jun–Oct 1999 5-Month	64.4°F (18.0°C)	63.4°F (17.4°C)	1.0°F (0.6°C)	92nd Coolest	Coolest since: 1998	1992
	64.4°F (18.0°C)	63.4°F (17.4°C)	1.0°F (0.6°C)	37th Warmest	Warmest since: 1998	1900
	Ties: 1998, 2013
May–Oct 1999 6-Month	63.5°F (17.5°C)	62.4°F (16.9°C)	1.1°F (0.6°C)	92nd Coolest	Coolest since: 1997	1917
	63.5°F (17.5°C)	62.4°F (16.9°C)	1.1°F (0.6°C)	37th Warmest	Warmest since: 1998	1900
	Ties: 1901, 1922, 2013
Apr–Oct 1999 7-Month	61.4°F (16.3°C)	60.2°F (15.7°C)	1.2°F (0.6°C)	101st Coolest	Coolest since: 1997	1907
	61.4°F (16.3°C)	60.2°F (15.7°C)	1.2°F (0.6°C)	28th Warmest	Warmest since: 1998	2010, 2021
	Ties: 1906, 1911, 2013
Mar–Oct 1999 8-Month	58.0°F (14.4°C)	57.2°F (14.0°C)	0.8°F (0.4°C)	91st Coolest	Coolest since: 1997	1924
	58.0°F (14.4°C)	57.2°F (14.0°C)	0.8°F (0.4°C)	38th Warmest	Warmest since: 1998	2012
	Ties: 1918, 1933, 1985, 1986, 1987, 2000
Feb–Oct 1999 9-Month	55.1°F (12.8°C)	53.8°F (12.1°C)	1.3°F (0.7°C)	106th Coolest	Coolest since: 1997	1907
	55.1°F (12.8°C)	53.8°F (12.1°C)	1.3°F (0.7°C)	23rd Warmest	Warmest since: 1998	2012
	Ties: 1922, 1931, 1938, 1945, 2000
Jan–Oct 1999 10-Month	52.3°F (11.3°C)	51.0°F (10.6°C)	1.3°F (0.7°C)	105th Coolest	Coolest since: 1997	1940
	52.3°F (11.3°C)	51.0°F (10.6°C)	1.3°F (0.7°C)	24th Warmest	Warmest since: 1998	2012
	Ties: 1931, 1932, 2007
Dec 1998–Oct 1999 11-Month	50.8°F (10.4°C)	48.9°F (9.4°C)	1.9°F (1.0°C)	111th Coolest	Coolest since: 1997	1904
	50.8°F (10.4°C)	48.9°F (9.4°C)	1.9°F (1.0°C)	17th Warmest	Warmest since: 1998	2012
	Ties: 1932
Nov 1998–Oct 1999 12-Month	50.0°F (10.0°C)	48.1°F (8.9°C)	1.9°F (1.1°C)	114th Coolest	Coolest since: 1997	1904
	50.0°F (10.0°C)	48.1°F (8.9°C)	1.9°F (1.1°C)	14th Warmest	Warmest since: 1998	2012
	Ties: 1919, 1953, 1995, 2019
May 1998–Oct 1999 18-Month	54.7°F (12.6°C)	52.9°F (11.6°C)	1.8°F (1.0°C)	117th Coolest	Coolest since: 1998	1904
May 1998–Oct 1999 18-Month	54.7°F (12.6°C)	52.9°F (11.6°C)	1.8°F (1.0°C)	11th Warmest	Warmest since: 1991	2012
Nov 1997–Oct 1999 24-Month	50.6°F (10.3°C)	48.2°F (9.0°C)	2.4°F (1.3°C)	122nd Coolest	Coolest since: 1998	1905
	50.6°F (10.3°C)	48.2°F (9.0°C)	2.4°F (1.3°C)	5th Warmest	Warmest to Date	2017
	Ties: 2022
Nov 1996–Oct 1999 36-Month	49.7°F (9.8°C)	48.1°F (8.9°C)	1.6°F (0.9°C)	114th Coolest	Coolest since: 1998	1918, 1979
	49.7°F (9.8°C)	48.1°F (8.9°C)	1.6°F (0.9°C)	12th Warmest	Warmest since: 1933	2018
	Ties: 1933, 2008, 2014
Nov 1995–Oct 1999 48-Month	49.0°F (9.4°C)	48.1°F (8.9°C)	0.9°F (0.5°C)	96th Coolest	Coolest since: 1998	1907
	49.0°F (9.4°C)	48.1°F (8.9°C)	0.9°F (0.5°C)	29th Warmest	Warmest since: 1998	2019
	Ties: 1922, 1954, 1998, 2004, 2006
Nov 1994–Oct 1999 60-Month	49.2°F (9.6°C)	48.1°F (8.9°C)	1.1°F (0.7°C)	103rd Coolest	Coolest since: 1998	1905, 1907, 1908
	49.2°F (9.6°C)	48.1°F (8.9°C)	1.1°F (0.7°C)	21st Warmest	Warmest since: 1991	2020
	Ties: 1933, 1991, 2000, 2004, 2005

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