Pennsylvania September 2011 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
64.4
61.7
2.7
111
19
1918
1961
2010
2007
top-third
1945,2007
2
66.9
65.1
1.8
105
25
1963
2016
2009
2010
top-third
1983,2020
3
69.4
66.8
2.6
121
9
1924,1962,1963,1976
2016
2010
2005
top-tenth
2021
4
69.0
66.6
2.4
122
8
1924
2005,2016
2009
2010
top-tenth
2020
5
67.4
64.8
2.6
125
5
1924
2018
2009
2010
top-tenth
6
64.5
61.8
2.7
128
2
1907,1924
2010
2009
2010
top-tenth
7
60.4
58.1
2.3
123
7
1924
2010
2009
2010
top-tenth
8
56.5
54.2
2.3
121
9
1924
2012
2009
2010
top-tenth
2017
9
52.7
51.0
1.7
112
18
1940
2012
2009
2010
top-third
1898,2018
10
50.0
48.8
1.2
95
34
1904
2012
2009
2010
top-third
1930,1939
11
49.1
47.9
1.2
100
29
1904
2012
2009
2010
top-third
1939,1973,2004,2013
12
49.3
48.1
1.2
96
33
1904
2012
2009
2010
top-third
1939,1954,1957
18
54.5
52.7
1.8
115
14
1918
2012
2010
2006
top-third
24
49.9
48.1
1.8
114
14
1905
2017
2010
2006
top-third
1922,2000,2006
36
49.3
48.1
1.2
102
25
1979
2018
2009
2010
top-third
1934,1993
48
49.4
48.1
1.3
108
18
1907
2023
2009
2010
top-third
1933,2009
60
49.5
48.1
1.4
110
15
1908
2020
2009
2010
top-third
2017