Philadelphia - Recent May Temperatures and Rainfall





The numbers here describe what the May weather in Philadelphia, Pennsylvania was like for every year since 2010. A series of tables gives May 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 hot days occurred each May. 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

May temperature averages by year in Philadelphia
High °F Low °F Year High °C Low °C
78 58 2018 25 14
72 55 2017 22 13
71 55 2016 22 13
81 59 2015 27 15
75 56 2014 24 13
74 55 2013 23 13
77 59 2012 25 15
77 58 2011 25 14
77 58 2010 25 14
Number of days in May when the temperature in Philadelphia rose to at least 70 or 90 degrees Fahrenheit
Year 70 °F
21 °C
90 °F
32 °C
2018 25 1
2017 17 3
2016 16 3
2015 29 1
2014 23 0
2013 21 3
2012 25 2
2011 25 3
2010 24 2

Rainy Weather iconRain

This table gives the total precipitation that fell on Philadelphia during May 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 May in Philadelphia
Days Year Inches Milli­metres
12 2018 5.2 132
9 2017 6.3 161
17 2016 6.7 169
7 2015 1.2 30
9 2014 2.9 74
13 2013 2.3 59
13 2012 3.4 85
9 2011 1.9 49
10 2010 2.5 64
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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