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Williamsport (PA)
Winston-Salem (NC) More Locations
United States weather

Weather in Williamsport, Pennsylvania for December 2026

Your guide to Williamsport weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Williamsport usually enjoys a light touch of snow in December.

    • Rain 🌧️

  • Williamsport experiences moderate rainfall in December, with an average of 6 rainy days and a total precipitation of 188.7 mm.

    • More

  • Is December a good time to visit Williamsport? check out the best time to travel to Williamsport page.

  • ✨ Is December a good time to visit Williamsport? – Ask the AI Weatherman

Average dry days
22
Dry days
Average rainy days
6
Rainy days
Average snowy days
3
Snow days
Average temperatures
1°/-3°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Williamsport Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
1°
2
Heavy snow
1°
3
Mist
2°
4
Overcast
0°
5
Light snow
-2°
6
Overcast
1°
7
Cloudy
0°
8
Overcast
2°
9
Moderate rain
-1°
10
Light rain
3°
11
Light snow
2°
12
Partly cloudy
0°
13
Partly cloudy
-1°
14
Sunny
-1°
15
Overcast
-1°
16
Moderate rain
2°
17
Light rain
4°
18
Moderate rain
3°
19
Moderate rain
4°
20
Overcast
0°
21
Overcast
0°
22
Sunny
-2°
23
Light snow
-1°
24
Overcast
3°
25
Overcast
1°
26
Moderate snow
-2°
27
Light snow
0°
28
Moderate rain
1°
29
Moderate rain
7°
30
Patchy light rain
4°
31
Moderate rain at times
2°

Temperatures trend during December in Williamsport

See the weather trend as well as the moving average line

December weather in Williamsport day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 1° /-3° 0 mm 0 cm
Dec. 2 Heavy snow
Heavy snow
 1° /-3° 37.2 mm 26.9 cm
Dec. 3 Mist
Mist
 2° /-3° 0 mm 0 cm
Dec. 4 Overcast
Overcast
 0° /-4° 0 mm 0 cm
Dec. 5 Light snow
Light snow
 -2° /-6° 1.6 mm 1.2 cm
Dec. 6 Overcast
Overcast
 1° /-4° 0 mm 0 cm
Dec. 7 Cloudy
Cloudy
 0° /-2° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 2° /-3° 0 mm 0 cm
Dec. 9 Moderate rain
Moderate rain
 -1° /-5° 15.3 mm 0 cm
Dec. 10 Light rain
Light rain
 3° /-1° 4.4 mm 0 cm
Dec. 11 Light snow
Light snow
 2° /-2° 10.4 mm 3.7 cm
Dec. 12 Partly cloudy
Partly cloudy
 0° /-5° 0 mm 0 cm
Dec. 13 Partly cloudy
Partly cloudy
 -1° /-6° 0 mm 0 cm
Dec. 14 Sunny
Sunny
 -1° /-7° 0 mm 0 cm
Dec. 15 Overcast
Overcast
 -1° /-7° 0 mm 0 cm
Dec. 16 Moderate rain
Moderate rain
 2° /-3° 23.4 mm 0 cm
Dec. 17 Light rain
Light rain
 4° /-2° 3.8 mm 0 cm
Dec. 18 Moderate rain
Moderate rain
 3° /-3° 22.1 mm 0 cm
Dec. 19 Moderate rain
Moderate rain
 4° /-3° 20.5 mm 0 cm
Dec. 20 Overcast
Overcast
 0° /-3° 0 mm 0 cm
Dec. 21 Overcast
Overcast
 0° /-5° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 -2° /-8° 0 mm 0 cm
Dec. 23 Light snow
Light snow
 -1° /-5° 8.9 mm 2.9 cm
Dec. 24 Overcast
Overcast
 3° /-2° 0 mm 0 cm
Dec. 25 Overcast
Overcast
 1° /-2° 0 mm 0 cm
Dec. 26 Moderate snow
Moderate snow
 -2° /-5° 6.9 mm 5 cm
Dec. 27 Light snow
Light snow
 0° /-3° 2.8 mm 2 cm
Dec. 28 Moderate rain
Moderate rain
 1° /-3° 7.3 mm 0 cm
Dec. 29 Moderate rain
Moderate rain
 7° /-2° 15.1 mm 0 cm
Dec. 30 Patchy light rain
Patchy light rain
 4° /0° 1.5 mm 0 cm
Dec. 31 Moderate rain at times
Moderate rain at times
 2° /-3° 7.5 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.
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Williamsport in December - FAQ

What are the expected maximum and minimum temperatures in Williamsport during December?
Brace for cold days with temperatures not exceeding 1° 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 188.7 mm is expected in Williamsport during December, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Williamsport in December 2026?
Williamsport experiences an average snowfall of 41.6 cm during December, occurring over 3 days.

What are the typical wind conditions in Williamsport during December?
The average wind speed in Williamsport during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

Williamsport snow forecast December 2026

Track daily snowfall levels and discover Williamsport’s snowy potential this December ❄️
On average, Williamsport sees 3 snowy days during December, with approximately 41.6 cm of total snowfall.

December rainfall patterns in Williamsport

Explore the daily rainfall trends and prepare for Williamsports December weather 💧
Typically, Williamsport has 6 rainy days in December with a total of 188.7 mm of rainfall.
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Location coordinates 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.

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