Lycoming County (Williamsport)
December
Weather in Lycoming County for December 2025
Your guide to Lycoming County weather in December - trends and predictions
With an average of 2 snowy days, Lycoming County usually enjoys a light touch of snow in December.
In general, the average temperature in Lycoming County 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.
Lycoming County experiences moderate rainfall in December, with an average of 10 rainy days and a total precipitation of 228.5 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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19
Dry days
10
Rainy days
2
Snow days
2°/-2°
Temperatures
13 km/h
Avg max wind
75 %
Avg humidity
Lycoming County in December average weather
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| 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° |
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Temperatures trend during December in Lycoming County
See the weather trend as well as the moving average line
December weather day by day
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| 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 | |
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Important Notice
Our weather forecast for Lycoming County 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 Lycoming County forecast closer to your planned date for the most up-to-date weather information.
Lycoming County in December - FAQ
What are the expected maximum and minimum temperatures in Lycoming County 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 Lycoming County during December?
Significant rainfall exceeding 228.5 mm is expected in Lycoming County during December, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Lycoming County in December 2025?
Lycoming County experiences an average snowfall of 9.9 cm during December, occurring over 2 days.
What are the typical wind conditions in Lycoming County during December?
The average wind speed in Lycoming County during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
Lycoming County snow forecast December 2025
Track daily snowfall levels and discover Lycoming County’s snowy potential this December ❄️
December rainfall patterns in Lycoming County
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Where is Lycoming County?Get accurate weather forecasts for Lycoming County, located at latitude 41.241 and longitude -77.001. Stay updated with localized weather information tailored for Lycoming County.
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