Philadelphia County (Philadelphia)
May
Weather in Philadelphia County, Pennsylvania for May 2027
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 19.3 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 23.4 °C by the end of May.
The climate of Philadelphia County in May is notably wet, with an average of 13 rainy days, and a total of 155 mm of precipitation.
Is May a good time to visit Philadelphia County? check out the best time to travel to Philadelphia County page.
✨ Is May a good time to visit Philadelphia County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
18
Dry days
13
Rainy days
0
Snow days
22°/13°
Temperatures
16 km/h
Avg max wind
67 %
Avg humidity
Philadelphia County Weather May
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Temperatures trend during May in Philadelphia County
See the weather trend as well as the moving average line
May weather in Philadelphia County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 18° /9° | 1.7 mm | 6 | |
| May 2 | Patchy rain possible | 21° /11° | 2.1 mm | 6 | |
| May 3 |  Light rain | 20° /11° | 2.5 mm | 6 | |
| May 4 | Light rain | 20° /11° | 4.1 mm | 5 | |
| May 5 |  Moderate or heavy rain shower | 20° /12° | 9.5 mm | 5 | |
| May 6 | Light rain | 18° /12° | 7.6 mm | 4 | |
| May 7 | Light rain | 19° /11° | 7 mm | 5 | |
| May 8 | Light rain | 20° /11° | 6.8 mm | 5 | |
| May 9 |  Moderate rain | 17° /10° | 16.4 mm | 5 | |
| May 10 | Light rain | 20° /9° | 3.7 mm | 6 | |
| May 11 |  Partly cloudy | 20° /10° | 0.2 mm | 5 | |
| May 12 | Patchy rain possible | 22° /11° | 1.7 mm | 6 | |
| May 13 | Patchy rain possible | 21° /13° | 1.1 mm | 6 | |
| May 14 | Moderate rain | 19° /13° | 10.3 mm | 5 | |
| May 15 | Patchy rain possible | 21° /13° | 1.9 mm | 5 | |
| May 16 | Light rain | 23° /13° | 4.3 mm | 6 | |
| May 17 | Patchy rain possible | 23° /15° | 1.2 mm | 6 | |
| May 18 |  Cloudy | 24° /13° | 0.1 mm | 7 | |
| May 19 | Light rain | 26° /13° | 2.6 mm | 7 | |
| May 20 | Partly cloudy | 26° /15° | 0.7 mm | 7 | |
| May 21 | Light rain | 25° /14° | 9.3 mm | 6 | |
| May 22 | Light rain | 24° /15° | 4.9 mm | 7 | |
| May 23 | Light rain | 21° /14° | 5.6 mm | 5 | |
| May 24 | Light rain | 22° /13° | 3.5 mm | 5 | |
| May 25 |  Sunny | 23° /13° | 0.8 mm | 5 | |
| May 26 | Partly cloudy | 26° /15° | 0.8 mm | 7 | |
| May 27 | Moderate or heavy rain shower | 24° /16° | 8.2 mm | 5 | |
| May 28 | Moderate rain | 22° /14° | 13.2 mm | 6 | |
| May 29 | Light rain | 23° /13° | 5.6 mm | 6 | |
| May 30 | Light rain | 22° /13° | 7.1 mm | 6 | |
| May 31 | Moderate rain | 25° /13° | 10.2 mm | 7 | |
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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.
Change Month
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 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Philadelphia County during May?
Significant rainfall exceeding 155 mm is expected in Philadelphia County during May, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
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 💧
Typically, Philadelphia County has 13 rainy days in May with a total of 155 mm of rainfall.
UV exposure in Philadelphia County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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