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Weather in Pennsylvania for May 2025

Your guide to Pennsylvania weather in May - trends and predictions
  • In general, the average temperature in Pennsylvania 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, Pennsylvania experiences minimal rainfall in May.

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Average dry days
27
Dry days
Average rainy days
4
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/10°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
64 %
Avg humidity

Pennsylvania in May average weather

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Temperatures trend during May in Pennsylvania

See the weather trend as well as the moving average line

May weather day by day

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Date Weather Temperatures Rain UV More
May 1 Patchy rain possible
Patchy rain possible
17° /11° 4.5 mm 4
May 2 Patchy rain possible
Patchy rain possible
19° /10° 1.5 mm 5
May 3 Moderate rain at times
Moderate rain at times
16° /8° 0.8 mm 5
May 4 Patchy rain possible
Patchy rain possible
14° /7° 2 mm 3
May 5 Patchy rain possible
Patchy rain possible
15° /7° 6.3 mm 4
May 6 Overcast
Overcast
20° /10° 0.8 mm 5
May 7 Partly cloudy
Partly cloudy
23° /12° 1.7 mm 6
May 8 Overcast
Overcast
26° /15° 0.3 mm 6
May 9 Heavy rain at times
Heavy rain at times
18° /12° 3.6 mm 5
May 10 Sunny
Sunny
18° /9° 5.5 mm 5
May 11 Partly cloudy
Partly cloudy
21° /9° 0.1 mm 6
May 12 Sunny
Sunny
21° /11° 4.9 mm 6
May 13 Patchy rain possible
Patchy rain possible
21° /12° 0.1 mm 5
May 14 Overcast
Overcast
21° /13° 2.7 mm 5
May 15 Sunny
Sunny
20° /12° 3.5 mm 5
May 16 Overcast
Overcast
20° /12° 1.3 mm 5
May 17 Sunny
Sunny
21° /13° 0 mm 6
May 18 Sunny
Sunny
21° /10° 0 mm 6
May 19 Overcast
Overcast
23° /11° 0 mm 5
May 20 Heavy rain at times
Heavy rain at times
23° /13° 1.1 mm 6
May 21 Cloudy
Cloudy
26° /13° 0.2 mm 7
May 22 Cloudy
Cloudy
28° /13° 1.2 mm 7
May 23 Partly cloudy
Partly cloudy
25° /15° 2 mm 6
May 24 Overcast
Overcast
27° /13° 0.2 mm 6
May 25 Sunny
Sunny
25° /14° 0.1 mm 6
May 26 Sunny
Sunny
27° /14° 2.1 mm 7
May 27 Sunny
Sunny
24° /14° 13.2 mm 6
May 28 Overcast
Overcast
25° /14° 0 mm 6
May 29 Sunny
Sunny
26° /14° 1.5 mm 6
May 30 Sunny
Sunny
23° /13° 1.3 mm 6
May 31 Partly cloudy
Partly cloudy
26° /10° 0.1 mm 7
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Important Notice
Our weather forecast for Pennsylvania 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 Pennsylvania forecast closer to your planned date for the most up-to-date weather information.

Pennsylvania in May - FAQ

What are the expected maximum and minimum temperatures in Pennsylvania 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 Pennsylvania during May?
Moderate rainfall is anticipated in Pennsylvania 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 Pennsylvania during May?
The average wind speed in Pennsylvania during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Pennsylvania

Explore the daily rainfall trends and prepare for Pennsylvanias May weather 💧

UV exposure in Pennsylvania during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Location coordinates Where is Pennsylvania?

Get accurate weather forecasts for Pennsylvania, located at latitude 39.952 and longitude -75.164. Stay updated with localized weather information tailored for Pennsylvania.

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