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Lycoming County (Williamsport)
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United States weather

Weather in Lycoming County, Pennsylvania for December 2025

Your guide to Lycoming County weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Lycoming County usually enjoys a light touch of snow in December.
    According to Lycoming County snow forecast for December 2025, 4 snowy days are expected until the end of the month. The closest date with snow is Saturday, December 20.

    • Temperatures

  • Until now, December 2025 in Lycoming County is slightly cooler than the historical average by -0.6 °F.

  • The forecast for the upcoming days in Lycoming County predicts a temperature of 3.5 °F, which is slightly above the historical average.

  • In general, the average temperature in Lycoming County at the beginning of December is 0.6 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 2 °F by the end of December.

    • Rain 🌧️

  • Lycoming County experiences moderate rainfall in December, with an average of 10 rainy days and a total precipitation of 228.5 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
19
Dry days
Average rainy days
10
Rainy days
Average snowy days
2
Snow days
Average temperatures
1°/-2°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Lycoming County Weather December

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

Temperatures trend during December in Lycoming County

See the weather trend as well as the moving average line

December weather in Lycoming County 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 Overcast
Overcast
 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 Overcast
Overcast
 -1° /-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
 0° /-5° 15.3 mm 0 cm
Dec. 10 Fog
Fog
 3° /-1° 4.4 mm 0 cm
Dec. 11 Heavy snow
Heavy 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
 3° /0° 46.7 mm 0 cm
Dec. 17 Partly cloudy
Partly cloudy
 12° /-5° 0 mm 0 cm
Dec. 18 Mist
Mist
 3° /-8° 3.1 mm 0 cm
Dec. 19 Heavy rain
Heavy rain
 11° /-3° 67.4 mm 0 cm
Dec. 20 Partly cloudy
Partly cloudy
 1° /-3° 0 mm 0 cm
Dec. 21 Partly cloudy
Partly cloudy
 4° /-4° 0 mm 0 cm
Dec. 22 Partly cloudy
Partly cloudy
 -1° /-5° 0 mm 0 cm
Dec. 23 Overcast
Overcast
 1° /-4° 0.1 mm 0 cm
Dec. 24 Overcast
Overcast
 8° /-1° 0 mm 0 cm
Dec. 25 Patchy rain possible
Patchy rain possible
 4° /1° 1.1 mm 0 cm
Dec. 26 Overcast
Overcast
 3° /-1° 0 mm 0 cm
Dec. 27 Overcast
Overcast
 2° /-3° 0.1 mm 0.1 cm
Dec. 28 Sunny
Sunny
 -1° /-5° 0 mm 0 cm
Dec. 29 Moderate or heavy snow showers
Moderate or heavy snow showers
 -3° /-7° 1.6 mm 1.1 cm
Dec. 30 Moderate snow
Moderate snow
 5° /-8° 1 mm 0.7 cm
Dec. 31 Moderate rain at times
Moderate rain at times
 4° /0° 15 mm 0 cm
Next
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.
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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 1° 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 9.86 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 ❄️
On average, Lycoming County sees 2 snowy days during December, with approximately 9.9 cm of total snowfall.

December rainfall patterns in Lycoming County

Explore the daily rainfall trends and prepare for Lycoming Countys December weather 💧
Typically, Lycoming County has 10 rainy days in December with a total of 228.5 mm of rainfall.
Top locations in Lycoming County
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Williamsport
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Location coordinates 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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