Williamsport (PA)
May
Weather in Williamsport, Pennsylvania for May 2026
Your guide to Williamsport weather in May - trends and predictions
In general, the average temperature in Williamsport at the beginning of May is 19.1 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 20.4 °F by the end of May.
The climate of Williamsport in May is notably wet, with an average of 14 rainy days, and a total of 151.1 mm of precipitation.
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Temperatures
Rain 🌧️
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17
Dry days
14
Rainy days
0
Snow days
20°/10°
Temperatures
12 km/h
Avg max wind
82 %
Avg humidity
Williamsport Weather May
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Temperatures trend during May in Williamsport
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May weather in Williamsport day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Mist | 21° /9° | 0.1 mm | 5 | |
| May 2 | Mist | 24° /11° | 1.6 mm | 5 | |
| May 3 | Mist | 20° /10° | 18 mm | 5 | |
| May 4 |  Light rain | 15° /9° | 47.9 mm | 4 | |
| May 5 |  Moderate rain | 15° /11° | 24.8 mm | 4 | |
| May 6 | Fog | 19° /11° | 15.1 mm | 4 | |
| May 7 | Mist | 20° /10° | 12.8 mm | 5 | |
| May 8 | Fog | 23° /11° | 2.7 mm | 5 | |
| May 9 |  Light rain shower | 10° /8° | 21.5 mm | 3 | |
| May 10 | Moderate rain | 15° /7° | 12.2 mm | 5 | |
| May 11 | Light rain shower | 16° /7° | 2.6 mm | 4 | |
| May 12 | Light rain shower | 18° /7° | 3.9 mm | 4 | |
| May 13 | Light rain shower | 18° /11° | 14.3 mm | 4 | |
| May 14 | Light drizzle | 17° /10° | 20.3 mm | 4 | |
| May 15 | Light rain shower | 18° /13° | 9 mm | 5 | |
| May 16 | Fog | 23° /13° | 12.6 mm | 5 | |
| May 17 | Patchy light drizzle | 24° /12° | 0.3 mm | 6 | |
| May 18 | Patchy rain possible | 16° /12° | 0.1 mm | 4 | |
| May 19 | Patchy rain possible | 21° /10° | 0.1 mm | 5 | |
| May 20 | Fog | 21° /8° | 0 mm | 5 | |
| May 21 | Fog | 19° /11° | 32.5 mm | 5 | |
| May 22 | Fog | 20° /11° | 24.2 mm | 5 | |
| May 23 | Light rain shower | 18° /11° | 3.1 mm | 4 | |
| May 24 |  Sunny | 20° /8° | 0 mm | 5 | |
| May 25 |  Thundery outbreaks possible | 22° /10° | 0.2 mm | 5 | |
| May 26 | Fog | 24° /11° | 0.8 mm | 5 | |
| May 27 |  Moderate or heavy rain shower | 21° /11° | 15.8 mm | 5 | |
| May 28 | Fog | 18° /10° | 8.2 mm | 4 | |
| May 29 | Light rain shower | 19° /10° | 7.4 mm | 5 | |
| May 30 | Mist | 20° /9° | 5.8 mm | 5 | |
| May 31 |  Partly cloudy | 19° /7° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Williamsport 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 Williamsport forecast closer to your planned date for the most up-to-date weather information.
Change Month
Williamsport in May - FAQ
What are the expected maximum and minimum temperatures in Williamsport during May?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Williamsport during May?
Significant rainfall exceeding 151.1 mm is expected in Williamsport during May, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Williamsport during May?
The average wind speed in Williamsport during May is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Williamsport
Explore the daily rainfall trends and prepare for Williamsports May weather 💧
UV exposure in Williamsport during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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