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 1998

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
September 1998
1-Month		64.7°F
(18.2°C)		61.7°F
(16.5°C)		3.0°F
(1.7°C)		112th Coolest
Coolest since:
1918
17th Warmest
Warmest since:
1961
Ties: 1970
Aug–Sep 1998
2-Month		67.5°F
(19.7°C)		65.1°F
(18.4°C)		2.4°F
(1.3°C)		115th Coolest
Coolest since:
1963
14th Warmest
Warmest since:
2016
Ties: 1936, 2007
Jul–Sep 1998
3-Month		68.2°F
(20.1°C)		66.8°F
(19.3°C)		1.4°F
(0.8°C)		101st Coolest
Coolest since:
1924, 1962, 1963, 1976
28th Warmest
Warmest since:
2016
Ties: 1911, 1930
Jun–Sep 1998
4-Month		67.5°F
(19.7°C)		66.6°F
(19.2°C)		0.9°F
(0.5°C)		88th Coolest
Coolest since:
1924
41st Warmest
Warmest since:
2005, 2016
Ties: 1895, 1980, 2008
May–Sep 1998
5-Month		66.5°F
(19.2°C)		64.8°F
(18.2°C)		1.7°F
(1.0°C)		108th Coolest
Coolest since:
1924
21st Warmest
Warmest since:
2018
Ties: 1921, 1933, 1955
Apr–Sep 1998
6-Month		63.7°F
(17.6°C)		61.8°F
(16.6°C)		1.9°F
(1.0°C)		114th Coolest
Coolest since:
1907, 1924
15th Warmest
Warmest since:
2010
Ties: 2002
Mar–Sep 1998
7-Month		60.2°F
(15.7°C)		58.1°F
(14.5°C)		2.1°F
(1.2°C)		121st Coolest
Coolest since:
1924
8th Warmest
Warmest since:
2010
Ties: 1955
Feb–Sep 1998
8-Month		57.2°F
(14.0°C)		54.2°F
(12.3°C)		3.0°F
(1.7°C)		124th Coolest
Coolest since:
1924
5th Warmest
Warmest since:
2012
Ties: 2010
Jan–Sep 1998
9-Month		54.6°F
(12.6°C)		51.0°F
(10.6°C)		3.6°F
(2.0°C)		127th Coolest
Coolest since:
1940
2nd Warmest
Warmest to Date
2012
Dec 1997–Sep 1998
10-Month		52.4°F
(11.3°C)		48.8°F
(9.3°C)		3.6°F
(2.0°C)		125th Coolest
Coolest since:
1904
3rd Warmest
Warmest to Date
2012
Ties: 2002
Nov 1997–Sep 1998
11-Month		51.0°F
(10.6°C)		47.9°F
(8.8°C)		3.1°F
(1.8°C)		123rd Coolest
Coolest since:
1904
5th Warmest
Warmest since:
2012
Oct 1997–Sep 1998
12-Month		51.0°F
(10.6°C)		48.1°F
(8.9°C)		2.9°F
(1.7°C)		122nd Coolest
Coolest since:
1904
6th Warmest
Warmest since:
2012
Apr 1997–Sep 1998
18-Month		54.0°F
(12.2°C)		52.7°F
(11.5°C)		1.3°F
(0.7°C)		106th Coolest
Coolest since:
1918
22nd Warmest
Warmest since:
2012
Ties: 1942, 2007
Oct 1996–Sep 1998
24-Month		49.5°F
(9.7°C)		48.1°F
(8.9°C)		1.4°F
(0.8°C)		104th Coolest
Coolest since:
1905
23rd Warmest
Warmest since:
2017
Oct 1995–Sep 1998
36-Month		48.7°F
(9.3°C)		48.1°F
(8.9°C)		0.6°F
(0.4°C)		86th Coolest
Coolest since:
1979
40th Warmest
Warmest since:
2018
Ties: 1900, 1922, 1931, 1985, 2005
Oct 1994–Sep 1998
48-Month		48.9°F
(9.4°C)		48.1°F
(8.9°C)		0.8°F
(0.5°C)		91st Coolest
Coolest since:
1907
34th Warmest
Warmest since:
2019
Ties: 1935, 1952, 1988
Oct 1993–Sep 1998
60-Month		48.6°F
(9.2°C)		48.1°F
(8.9°C)		0.5°F
(0.3°C)		77th Coolest
Coolest since:
1908
47th Warmest
Warmest since:
2020
Ties: 1936, 1976, 1988

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