Philadelphia PA Temperature Averages by Decade

Summarized here are the temperatures extending over seven decades at Philadelphia, Pennsylvania. Listed for every decade from the 1950s to the 2010s are averages for maximum and minimum daily temperatures in degrees Fahrenheit and Celsius. That's followed with information on the number of hot and cold days.

Each decade covers a standard 10-year range. For instance the 1990s includes weather measurements from Jan 1, 1990 to Dec 31, 1999. All the temperature data were collected at Philadelphia International Airport.

High Temperature for Each Decade

Average daily maximum temperature at Philadelphia
High °F	Decade	High °C
65.8	2010s	18.8
64.6	2000s	18.1
65.2	1990s	18.4
63.7	1980s	17.6
63.6	1970s	17.6
62.5	1960s	17.0
64.1	1950s	17.8

Low Temperature for Each Decade

Average daily minimum temperature at Philadelphia
Low °F	Decade	Low °C
48.9	2010s	9.4
47.6	2000s	8.7
47.6	1990s	8.6
45.4	1980s	7.4
46.0	1970s	7.8
43.6	1960s	6.4
46.1	1950s	7.8

Hot Days per Decade

Total days per year on average when the temperature in Philadelphia reached at least 70 or 90 °F
Decade	70 °F 21 °C	90 °F 32 °C
2010s	172	34
2000s	164	23
1990s	163	31
1980s	158	26
1970s	162	22
1960s	156	17
1950s	160	26

Cold Days per Decade

Total days per year on average when the temperature in Philadelphia dropped to 0 or 32 °F or lower
Decade	0 °F -18 °C	32 °F 0 °C
2010s	0	76
2000s	0	82
1990s	0	77
1980s	1	95
1970s	1	91
1960s	0	108
1950s	0	86

Philadelphia - Temperature Averages by Decade

High Temperature for Each Decade

Low Temperature for Each Decade

Hot Days per Decade

Cold Days per Decade

Reference

More on Temperatures in Philadelphia