Philadelphia - Recent September Temperatures and Rainfall





The numbers here describe what the September weather in Philadelphia, Pennsylvania was like for every year since 2010. A series of tables gives September data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many really hot days occurred each September. Then there's information on how much rain actually landed this month during recent years, as well as how often Philadelphia had wet weather.

The climate data come from weather measurements made at Philadelphia International Airport.

Temperature Weather iconTemperature

September temperature averages by year in Philadelphia
High °F Low °F Year High °C Low °C
79 66 2018 26 19
80 63 2017 26 17
82 65 2016 28 18
84 65 2015 29 19
79 62 2014 26 17
77 59 2013 25 15
78 62 2012 26 17
79 64 2011 26 18
82 64 2010 28 18
Number of days in September when the temperature in Philadelphia rose to at least 70 or 90 degrees Fahrenheit
Year 70 °F
21 °C
90 °F
32 °C
2018 27 4
2017 27 2
2016 28 5
2015 30 7
2014 28 2
2013 27 1
2012 28 1
2011 27 0
2010 29 7

Rainy Weather iconRain

This table gives the total precipitation that fell on Philadelphia during September in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.01 inches (0.3 millimeters) or more.

Total rainfall for September in Philadelphia
Days Year Inches Milli­metres
15 2018 9.8 248
8 2017 3.9 98
6 2016 3.5 89
5 2015 6.3 159
7 2014 1.7 43
7 2013 3.3 83
10 2012 5.5 139
15 2011 10.3 261
8 2010 3.5 88
Reference

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

Philadelphia - Recent Years
Philadelphia - Extremes
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