Philadelphia County
May
Weather in Philadelphia County for May 2025
Your guide to Philadelphia County weather in May - trends and predictions
In general, the average temperature in Philadelphia County at the beginning of May is 17.7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 25.1 °F by the end of May.
With an average of 4 rainy days, Philadelphia County experiences minimal rainfall in May, ensuring that most days remain pleasantly dry.
- New! Chat with our AI weatherman - it’s amazing and free.
27
Dry days
4
Rainy days
0
Snow days
24°/10°
Temperatures
16 km/h
Avg max wind
64 %
Avg humidity
Philadelphia County in May average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2 19° | 3  16° | 4 14° | |||
| 5 15° | 6  20° | 7  23° | 8 26° | 9  18° | 10  18° | 11 21° |
| 12 21° | 13 21° | 14 21° | 15 20° | 16 20° | 17 21° | 18 21° |
| 19 23° | 20 23° | 21  26° | 22 28° | 23 25° | 24 27° | 25 25° |
| 26 27° | 27 24° | 28 25° | 29 26° | 30 23° | 31 26° |
You can click on date
Access Philadelphia County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during May in Philadelphia County
See the weather trend as well as the moving average line
May weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 | Patchy rain possible | 17° /11° | 4.5 mm | 4 | |
| May 2 | Patchy rain possible | 19° /10° | 1.5 mm | 5 | |
| May 3 | Moderate rain at times | 16° /8° | 0.8 mm | 5 | |
| May 4 | Patchy rain possible | 14° /7° | 2 mm | 3 | |
| May 5 | Patchy rain possible | 15° /7° | 6.3 mm | 4 | |
| May 6 | Overcast | 20° /10° | 0.8 mm | 5 | |
| May 7 | Partly cloudy | 23° /12° | 1.7 mm | 6 | |
| May 8 | Overcast | 26° /15° | 0.3 mm | 6 | |
| May 9 | Heavy rain at times | 18° /12° | 3.6 mm | 5 | |
| May 10 | Sunny | 18° /9° | 5.5 mm | 5 | |
| May 11 | Partly cloudy | 21° /9° | 0.1 mm | 6 | |
| May 12 | Sunny | 21° /11° | 4.9 mm | 6 | |
| May 13 | Patchy rain possible | 21° /12° | 0.1 mm | 5 | |
| May 14 | Overcast | 21° /13° | 2.7 mm | 5 | |
| May 15 | Sunny | 20° /12° | 3.5 mm | 5 | |
| May 16 | Overcast | 20° /12° | 1.3 mm | 5 | |
| May 17 | Sunny | 21° /13° | 0 mm | 6 | |
| May 18 | Sunny | 21° /10° | 0 mm | 6 | |
| May 19 | Overcast | 23° /11° | 0 mm | 5 | |
| May 20 | Heavy rain at times | 23° /13° | 1.1 mm | 6 | |
| May 21 | Cloudy | 26° /13° | 0.2 mm | 7 | |
| May 22 | Cloudy | 28° /13° | 1.2 mm | 7 | |
| May 23 | Partly cloudy | 25° /15° | 2 mm | 6 | |
| May 24 | Overcast | 27° /13° | 0.2 mm | 6 | |
| May 25 | Sunny | 25° /14° | 0.1 mm | 6 | |
| May 26 | Sunny | 27° /14° | 2.1 mm | 7 | |
| May 27 | Sunny | 24° /14° | 13.2 mm | 6 | |
| May 28 | Overcast | 25° /14° | 0 mm | 6 | |
| May 29 | Sunny | 26° /14° | 1.5 mm | 6 | |
| May 30 | Sunny | 23° /13° | 1.3 mm | 6 | |
| May 31 | Partly cloudy | 26° /10° | 0.1 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Philadelphia County in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Philadelphia County forecast closer to your planned date for the most up-to-date weather information.
Philadelphia County in May - FAQ
What are the expected maximum and minimum temperatures in Philadelphia County during May?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Philadelphia County during May?
Moderate rainfall is anticipated in Philadelphia County during May, with a total of 88.7 mm spread over approximately 4 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Philadelphia County during May?
The average wind speed in Philadelphia County during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Philadelphia County
Explore the daily rainfall trends and prepare for Philadelphia Countys May weather 💧
UV exposure in Philadelphia County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Philadelphia County
Select a location for an accurate weather forecast
More Locations Quick links
You are here
Where is Philadelphia County?Get accurate weather forecasts for Philadelphia County, located at latitude 39.952 and longitude -75.164. Stay updated with localized weather information tailored for Philadelphia County.
Found a mistake?
We appreciate your attention to details. Tell us here.