Philadelphia PA Recent May Temperatures, 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

May temperature averages by year in Philadelphia
High °F	Low °F	Year	High °C	Low °C
73	51	2023	23	11
77	58	2022	25	15
74	54	2021	23	12
71	52	2020	22	11
75	58	2019	24	14
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
2023	24	0
2022	27	3
2021	21	3
2020	18	0
2019	24	1
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

Rain

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
4	2023	0.2	6
14	2022	4.2	106
10	2021	3.2	82
10	2020	2.2	56
17	2019	5.2	133
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

Philadelphia - Recent May Temperatures and Rainfall

Temperature

Rain

Reference

More on Weather in Philadelphia