Williamsport
December
Weather in Williamsport for December 2025
Your guide to Williamsport weather in December - trends and predictions
With an average of 2 snowy days, Williamsport usually enjoys a light touch of snow in December.
In general, the average temperature in Williamsport at the beginning of December is 0.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 3.9 °F by the end of December.
Williamsport experiences moderate rainfall in December, with an average of 10 rainy days and a total precipitation of 228.5 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Snow Forecast ❄️
Temperatures
Rain 🌧️
More
19
Dry days
10
Rainy days
2
Snow days
2°/-2°
Temperatures
13 km/h
Avg max wind
75 %
Avg humidity
Williamsport in December average weather
Move between months or click on a day
| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  1° | 2 1° | 3  1° | 4 0° | 5 0° | 6 -1° | |
| 7  0° | 8 3° | 9  1° | 10 4° | 11  4° | 12  0° | 13 -3° |
| 14  0° | 15 0° | 16 3° | 17 6° | 18  2° | 19 2° | 20 0° |
| 21 0° | 22 -4° | 23 -3° | 24 2° | 25 0° | 26 1° | 27 0° |
| 28 2° | 29 10° | 30  10° | 31 4° |
You can click on date
Access Williamsport weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during December in Williamsport
See the weather trend as well as the moving average line
December weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Dec. 2 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Dec. 3 | Mist | 1° /-3° | 0 mm | 0 cm | |
| Dec. 4 | Overcast | 0° /-2° | 0 mm | 0 cm | |
| Dec. 5 | Overcast | 0° /-3° | 3.3 mm | 2.4 cm | |
| Dec. 6 | Overcast | -1° /-4° | 0 mm | 0 cm | |
| Dec. 7 | Cloudy | 0° /-3° | 0 mm | 0 cm | |
| Dec. 8 | Overcast | 3° /0° | 0 mm | 0 cm | |
| Dec. 9 | Moderate rain | 1° /0° | 30.6 mm | 0 cm | |
| Dec. 10 | Fog | 4° /1° | 8.8 mm | 0 cm | |
| Dec. 11 | Heavy snow | 4° /1° | 20.8 mm | 7.5 cm | |
| Dec. 12 | Partly cloudy | 0° /-5° | 0 mm | 0 cm | |
| Dec. 13 | Partly cloudy | -3° /-5° | 0 mm | 0 cm | |
| Dec. 14 | Sunny | 0° /-8° | 0 mm | 0 cm | |
| Dec. 15 | Overcast | 0° /-4° | 0 mm | 0 cm | |
| Dec. 16 | Moderate rain | 3° /0° | 46.7 mm | 0 cm | |
| Dec. 17 | Fog | 6° /2° | 7.5 mm | 0 cm | |
| Dec. 18 | Moderate or heavy rain shower | 2° /0° | 44.3 mm | 0 cm | |
| Dec. 19 | Overcast | 2° /-1° | 3.6 mm | 0 cm | |
| Dec. 20 | Overcast | 0° /-1° | 0 mm | 0 cm | |
| Dec. 21 | Overcast | 0° /-5° | 0 mm | 0 cm | |
| Dec. 22 | Sunny | -4° /-10° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | -3° /-9° | 0 mm | 0 cm | |
| Dec. 24 | Overcast | 2° /-4° | 0 mm | 0 cm | |
| Dec. 25 | Overcast | 0° /-2° | 0 mm | 0 cm | |
| Dec. 26 | Overcast | 1° /-4° | 0 mm | 0 cm | |
| Dec. 27 | Overcast | 0° /-3° | 0 mm | 0 cm | |
| Dec. 28 | Moderate rain | 2° /0° | 14.7 mm | 0 cm | |
| Dec. 29 | Moderate rain | 10° /0° | 30.2 mm | 0 cm | |
| Dec. 30 | Patchy light rain | 10° /4° | 3.1 mm | 0 cm | |
| Dec. 31 | Moderate rain at times | 4° /0° | 15 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Williamsport in December 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.
Williamsport in December - FAQ
What are the expected maximum and minimum temperatures in Williamsport during December?
Brace for cold days with temperatures not exceeding 2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Williamsport during December?
Significant rainfall exceeding 228.5 mm is expected in Williamsport during December, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Williamsport in December 2025?
Williamsport experiences an average snowfall of 9.9 cm during December, occurring over 2 days.
What are the typical wind conditions in Williamsport during December?
The average wind speed in Williamsport during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
Williamsport snow forecast December 2025
Track daily snowfall levels and discover Williamsport’s snowy potential this December ❄️
December rainfall patterns in Williamsport
Explore the daily rainfall trends and prepare for Williamsports December weather 💧
Quick links
You are here
Where is Williamsport?Get accurate weather forecasts for Williamsport, located at latitude 41.241 and longitude -77.001. Stay updated with localized weather information tailored for Williamsport.
Found a mistake?
We appreciate your attention to details. Tell us here.