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 2009

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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
October 2009 1-Month	48.6°F (9.2°C)	50.6°F (10.3°C)	-2.0°F (-1.1°C)	32nd Coolest	Coolest since: 2003	1925
October 2009 1-Month	48.6°F (9.2°C)	50.6°F (10.3°C)	-2.0°F (-1.1°C)	97th Warmest	Warmest since: 2008	2007
Sep–Oct 2009 2-Month	55.0°F (12.8°C)	56.2°F (13.4°C)	-1.2°F (-0.6°C)	27th Coolest	Coolest since: 2006	1917
Sep–Oct 2009 2-Month	55.0°F (12.8°C)	56.2°F (13.4°C)	-1.2°F (-0.6°C)	102nd Warmest	Warmest since: 2008	1900
Aug–Oct 2009 3-Month	60.0°F (15.6°C)	60.2°F (15.7°C)	-0.2°F (-0.1°C)	47th Coolest	Coolest since: 2008	1976
	60.0°F (15.6°C)	60.2°F (15.7°C)	-0.2°F (-0.1°C)	82nd Warmest	Warmest since: 2007	1900
	Ties: 1986, 2000
Jul–Oct 2009 4-Month	61.7°F (16.5°C)	62.8°F (17.1°C)	-1.1°F (-0.6°C)	21st Coolest	Coolest since: 2000	1976
	61.7°F (16.5°C)	62.8°F (17.1°C)	-1.1°F (-0.6°C)	108th Warmest	Warmest since: 2008	1900
	Ties: 1972, 2000
Jun–Oct 2009 5-Month	62.4°F (16.9°C)	63.4°F (17.4°C)	-1.0°F (-0.5°C)	18th Coolest	Coolest since: 1992	1992
	62.4°F (16.9°C)	63.4°F (17.4°C)	-1.0°F (-0.5°C)	111th Warmest	Warmest since: 2008	1900
	Ties: 1929, 1950, 1956, 1965, 1967, 1979, 1981
May–Oct 2009 6-Month	61.7°F (16.5°C)	62.5°F (16.9°C)	-0.8°F (-0.4°C)	24th Coolest	Coolest since: 1997	1917
	61.7°F (16.5°C)	62.5°F (16.9°C)	-0.8°F (-0.4°C)	105th Warmest	Warmest since: 2008	1900, 2018
	Ties: 1897, 1903
Apr–Oct 2009 7-Month	59.9°F (15.5°C)	60.2°F (15.7°C)	-0.3°F (-0.2°C)	36th Coolest	Coolest since: 2003	1907
	59.9°F (15.5°C)	60.2°F (15.7°C)	-0.3°F (-0.2°C)	93rd Warmest	Warmest since: 2008	2010, 2021
	Ties: 1946, 1981, 1989
Mar–Oct 2009 8-Month	57.2°F (14.0°C)	57.2°F (14.0°C)	0.0°F (0.0°C)	56th Coolest	Coolest since: 2003	1924
	57.2°F (14.0°C)	57.2°F (14.0°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 2008	2012
	Ties: 1988
Feb–Oct 2009 9-Month	54.1°F (12.3°C)	53.8°F (12.1°C)	0.3°F (0.2°C)	69th Coolest	Coolest since: 2003	1907
	54.1°F (12.3°C)	53.8°F (12.1°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 2008	2012
	Ties: 1925, 1941, 1961
Jan–Oct 2009 10-Month	50.8°F (10.4°C)	50.9°F (10.5°C)	-0.1°F (-0.1°C)	63rd Coolest	Coolest since: 2003	1940
Jan–Oct 2009 10-Month	50.8°F (10.4°C)	50.9°F (10.5°C)	-0.1°F (-0.1°C)	66th Warmest	Warmest since: 2008	2012
Dec 2008–Oct 2009 11-Month	48.9°F (9.4°C)	48.9°F (9.4°C)	0.0°F (0.0°C)	57th Coolest	Coolest since: 2003	1904
	48.9°F (9.4°C)	48.9°F (9.4°C)	0.0°F (0.0°C)	71st Warmest	Warmest since: 2008	2012
	Ties: 1950, 1980
Nov 2008–Oct 2009 12-Month	48.1°F (8.9°C)	48.1°F (8.9°C)	0.0°F (0.0°C)	59th Coolest	Coolest since: 2003	1904
Nov 2008–Oct 2009 12-Month	48.1°F (8.9°C)	48.1°F (8.9°C)	0.0°F (0.0°C)	69th Warmest	Warmest since: 2008	2012
May 2008–Oct 2009 18-Month	52.8°F (11.6°C)	52.9°F (11.6°C)	-0.1°F (0.0°C)	49th Coolest	Coolest since: 2003	1904
	52.8°F (11.6°C)	52.9°F (11.6°C)	-0.1°F (0.0°C)	79th Warmest	Warmest since: 2008	2012
	Ties: 1897, 1910, 1911, 1929, 1948, 1959, 1962, 1980
Nov 2007–Oct 2009 24-Month	48.5°F (9.2°C)	48.1°F (8.9°C)	0.4°F (0.3°C)	78th Coolest	Coolest since: 2004	1905
	48.5°F (9.2°C)	48.1°F (8.9°C)	0.4°F (0.3°C)	49th Warmest	Warmest since: 2008	2017
	Ties: 1921, 1934, 1973, 1975, 1976, 1989, 1996
Nov 2006–Oct 2009 36-Month	49.1°F (9.5°C)	48.1°F (8.9°C)	1.0°F (0.6°C)	99th Coolest	Coolest since: 2005	1918, 1979
	49.1°F (9.5°C)	48.1°F (8.9°C)	1.0°F (0.6°C)	27th Warmest	Warmest since: 2008	2018
	Ties: 1993, 2016
Nov 2005–Oct 2009 48-Month	49.3°F (9.6°C)	48.1°F (8.9°C)	1.2°F (0.7°C)	107th Coolest	Coolest since: 2006	1907
	49.3°F (9.6°C)	48.1°F (8.9°C)	1.2°F (0.7°C)	18th Warmest	Warmest since: 2008	2019
	Ties: 1955, 1991, 2011, 2015
Nov 2004–Oct 2009 60-Month	49.4°F (9.7°C)	48.1°F (8.9°C)	1.3°F (0.8°C)	108th Coolest	Coolest since: 2007	1905, 1907, 1908
	49.4°F (9.7°C)	48.1°F (8.9°C)	1.3°F (0.8°C)	16th Warmest	Warmest since: 2008	2020
	Ties: 2001, 2003

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings