Statewide Rankings

Statewide Data Info
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 2020

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 2020
1-Month 		62.1°F
(16.7°C)		 61.7°F
(16.5°C)		 0.4°F
(0.2°C)		 66th Coolest
Coolest since:
 1918
63rd Warmest
Warmest since:
 1961
Ties: 1920
Aug–Sep 2020
2-Month 		66.8°F
(19.3°C)		 65.0°F
(18.3°C)		 1.8°F
(1.0°C)		 102nd Coolest
Coolest since:
 1963
27th Warmest
Warmest since:
 2016
Ties: 1930
Jul–Sep 2020
3-Month 		69.5°F
(20.8°C)		 66.8°F
(19.3°C)		 2.7°F
(1.5°C)		 121st Coolest
Coolest since:
 1924, 1962, 1963, 1976
8th Warmest
Warmest since:
 2016
Jun–Sep 2020
4-Month 		69.0°F
(20.6°C)		 66.7°F
(19.3°C)		 2.3°F
(1.3°C)		 121st Coolest
Coolest since:
 1924
8th Warmest
Warmest since:
 2005, 2016
Ties: 2011
May–Sep 2020
5-Month 		66.4°F
(19.1°C)		 64.9°F
(18.3°C)		 1.5°F
(0.8°C)		 104th Coolest
Coolest since:
 1924
25th Warmest
Warmest since:
 2018
Ties: 1906, 1999, 2002
Apr–Sep 2020
6-Month 		62.8°F
(17.1°C)		 61.8°F
(16.6°C)		 1.0°F
(0.5°C)		 95th Coolest
Coolest since:
 1907, 1924
34th Warmest
Warmest since:
 2010
Ties: 1922, 1930, 1936, 1939, 1949, 2006, 2007
Mar–Sep 2020
7-Month 		59.9°F
(15.5°C)		 58.1°F
(14.5°C)		 1.8°F
(1.0°C)		 117th Coolest
Coolest since:
 1924
12th Warmest
Warmest since:
 2010
Ties: 1898, 1945, 2019
Feb–Sep 2020
8-Month 		56.6°F
(13.7°C)		 54.2°F
(12.3°C)		 2.4°F
(1.4°C)		 121st Coolest
Coolest since:
 1924
8th Warmest
Warmest since:
 2012
Jan–Sep 2020
9-Month 		53.9°F
(12.2°C)		 51.0°F
(10.6°C)		 2.9°F
(1.6°C)		 124th Coolest
Coolest since:
 1940
5th Warmest
Warmest since:
 2012
Ties: 1991
Dec 2019–Sep 2020
10-Month 		51.8°F
(11.0°C)		 48.8°F
(9.3°C)		 3.0°F
(1.7°C)		 121st Coolest
Coolest since:
 1904
7th Warmest
Warmest since:
 2012
Nov 2019–Sep 2020
11-Month 		50.4°F
(10.2°C)		 47.9°F
(8.8°C)		 2.5°F
(1.4°C)		 118th Coolest
Coolest since:
 1904
10th Warmest
Warmest since:
 2012
Oct 2019–Sep 2020
12-Month 		50.6°F
(10.3°C)		 48.1°F
(8.9°C)		 2.5°F
(1.4°C)		 118th Coolest
Coolest since:
 1904
10th Warmest
Warmest since:
 2012
Ties: 1932
Apr 2019–Sep 2020
18-Month 		55.1°F
(12.8°C)		 52.7°F
(11.5°C)		 2.4°F
(1.3°C)		 123rd Coolest
Coolest since:
 1918
5th Warmest
Warmest since:
 2012
Ties: 2022
Oct 2018–Sep 2020
24-Month 		50.2°F
(10.1°C)		 48.1°F
(8.9°C)		 2.1°F
(1.2°C)		 119th Coolest
Coolest since:
 1905
8th Warmest
Warmest since:
 2017
Oct 2017–Sep 2020
36-Month 		50.1°F
(10.1°C)		 48.1°F
(8.9°C)		 2.0°F
(1.2°C)		 117th Coolest
Coolest since:
 1979
9th Warmest
Warmest since:
 2018
Oct 2016–Sep 2020
48-Month 		50.3°F
(10.2°C)		 48.1°F
(8.9°C)		 2.2°F
(1.3°C)		 122nd Coolest
Coolest since:
 1907
3rd Warmest
Warmest since:
 2019
Ties: 2013, 2021
Oct 2015–Sep 2020
60-Month 		50.6°F
(10.3°C)		 48.1°F
(8.9°C)		 2.5°F
(1.4°C)		 123rd Coolest
Coolest since:
 1908
1st Warmest
Warmest to Date
 2020

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