Average data for 10 years
1 May
Thursday
+20°
+10°
2 May
Friday
+22°
+12°
3 May
Saturday
+21°
+12°
4 May
Sunday
+20°
+12°
5 May
Monday
+20°
+12°
6 May
Tuesday
+19°
+12°
7 May
Wednesday
+21°
+10°
8 May
Thursday
+21°
+12°
9 May
Friday
+20°
+12°
10 May
Saturday
+22°
+12°
11 May
Sunday
+21°
+12°
12 May
Monday
+21°
+13°
13 May
Tuesday
+20°
+11°
14 May
Wednesday
+21°
+11°
15 May
Thursday
+23°
+13°
16 May
Friday
+23°
+14°
17 May
Saturday
+22°
+13°
18 May
Sunday
+21°
+13°
19 May
Monday
+23°
+13°
20 May
Tuesday
+23°
+13°
21 May
Wednesday
+23°
+13°
22 May
Thursday
+22°
+14°
23 May
Friday
+23°
+14°
24 May
Saturday
+24°
+15°
25 May
Sunday
+24°
+15°
26 May
Monday
+25°
+15°
27 May
Tuesday
+25°
+16°
28 May
Wednesday
+24°
+15°
29 May
Thursday
+25°
+15°
30 May
Friday
+25°
+16°
31 May
Saturday
+27°
+16°
In May, the weather in Philadelphia is typically warm. Average daily high temperature in May is about 22 degrees above zero. On average, Philadelphia has 12 rainy, 9 sunny, 5 cloudy, and 5 partly cloudy days in May. The rains are usually heavy.