Pennsylvania August 1991 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
70.7
68.4
2.3
104
26
1927
2016
1990
1988
top-third
2
71.4
69.4
2.0
110
20
1927
1955
1990
1988
top-third
1938,1980,1983,2006,2019
3
70.4
68.3
2.1
117
13
1927
2005
1990
1949
top-tenth
1898
4
68.9
65.6
3.3
129
1
1907
1991
1990
1991
highest
5
65.1
61.8
3.3
128
2
1907
2010
1990
1991
top-tenth
6
60.8
57.5
3.3
127
3
1924
2012
1990
1921
top-tenth
1921
7
56.8
53.1
3.7
128
2
1907
2012
1990
1991
top-tenth
8
53.0
49.6
3.4
127
3
1904,1940
2012
1990
1991
top-tenth
9
50.9
47.3
3.6
124
5
1904
2012
1990
1991
top-tenth
10
50.1
46.5
3.6
125
4
1904
2012
1990
1991
top-tenth
11
50.4
46.9
3.5
125
4
1904
2012
1990
1991
top-tenth
12
51.3
48.1
3.2
125
4
1904
2012
1990
1991
top-tenth
18
53.6
51.3
2.3
123
6
1918
2012
1990
1991
top-tenth
2002,2020,2021
24
50.1
48.1
2.0
117
11
1905
2017
1990
1933
top-tenth
2000,2006
36
49.4
48.1
1.3
107
20
1979
2018
1990
1955
top-third
1932,1934,1955,1992
48
49.2
48.1
1.1
103
23
1907
2019,2023
1990
1955
top-third
1934,2015
60
49.2
48.1
1.1
105
20
1908
2020
1990
1933
top-third
1933,2000,2004,2007,2015