Sussex County (Newton)
December
Weather in Sussex County, New Jersey for December 2025
Your guide to Sussex County weather in December - trends and predictions
With an average of 4 snowy days, Sussex County usually enjoys a light touch of snow in December.
According to Sussex County snow forecast for December 2025, 2 snowy days are expected until the end of the month. The closest date with snow is Tuesday, December 23.Until now, December 2025 in Sussex County is slightly cooler than the historical average by -1.9 °F.
The forecast for the next days in Sussex County predicts temperatures to be around 2 °F, close to the historical average.
In general, the average temperature in Sussex County at the beginning of December is 0.7 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 0.3 °F by the end of December.
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Snow Forecast ❄️
Temperatures
More
18
Dry days
9
Rainy days
4
Snow days
3°/-2°
Temperatures
15 km/h
Avg max wind
71 %
Avg humidity
Sussex County Weather December
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Temperatures trend during December in Sussex County
See the weather trend as well as the moving average line
December weather in Sussex County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Overcast | 1° /-2° | 0 mm | 0 cm | |
| Dec. 2 |  Sunny | 1° /-3° | 61 mm | 10.2 cm | |
| Dec. 3 |  Partly cloudy | 2° /-2° | 0 mm | 0 cm | |
| Dec. 4 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Dec. 5 |  Moderate snow | -2° /-5° | 8.5 mm | 6.2 cm | |
| Dec. 6 | Overcast | 0° /-4° | 0 mm | 0 cm | |
| Dec. 7 | Partly cloudy | 2° /-2° | 0 mm | 0 cm | |
| Dec. 8 | Overcast | 3° /-3° | 0 mm | 0 cm | |
| Dec. 9 |  Heavy rain at times | 1° /-5° | 11.8 mm | 0 cm | |
| Dec. 10 |  Fog | 4° /1° | 5.6 mm | 2.1 cm | |
| Dec. 11 |  Light rain shower | 7° /0° | 28.9 mm | 0 cm | |
| Dec. 12 | Sunny | 1° /-4° | 4.4 mm | 3.2 cm | |
| Dec. 13 | Sunny | 0° /-4° | 0 mm | 0 cm | |
| Dec. 14 | Sunny | 0° /-6° | 0 mm | 0 cm | |
| Dec. 15 | Overcast | -1° /-7° | 0 mm | 0 cm | |
| Dec. 16 |  Moderate rain | 4° /-3° | 22 mm | 0 cm | |
| Dec. 17 | Moderate rain | 5° /0° | 19.7 mm | 0 cm | |
| Dec. 18 | Mist | 4° /-4° | 5.2 mm | 0 cm | |
| Dec. 19 |  Heavy rain | 13° /-5° | 36.9 mm | 0 cm | |
| Dec. 20 | Partly cloudy | 0° /-5° | 0 mm | 0 cm | |
| Dec. 21 |  Cloudy | 7° /-4° | 0 mm | 0 cm | |
| Dec. 22 | Partly cloudy | -1° /-5° | 0 mm | 0 cm | |
| Dec. 23 |  Light freezing rain | 0° /-5° | 0.4 mm | 0.3 cm | |
| Dec. 24 | Cloudy | 3° /-1° | 0 mm | 0 cm | |
| Dec. 25 | Patchy rain possible | 3° /1° | 0.4 mm | 0 cm | |
| Dec. 26 | Mist | 2° /-2° | 5.2 mm | 0 cm | |
| Dec. 27 | Sunny | -2° /-6° | 0 mm | 0 cm | |
| Dec. 28 | Sunny | -5° /-9° | 0 mm | 0 cm | |
| Dec. 29 |  Ice pellets | -3° /-7° | 1.8 mm | 1.2 cm | |
| Dec. 30 | Patchy rain possible | 4° /1° | 4.1 mm | 0 cm | |
| Dec. 31 | Partly cloudy | 3° /-2° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Sussex 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 Sussex County forecast closer to your planned date for the most up-to-date weather information.
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Sussex County in December - FAQ
What are the expected maximum and minimum temperatures in Sussex County during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Sussex County during December?
Significant rainfall exceeding 310.7 mm is expected in Sussex County during December, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Sussex County in December 2025?
Sussex County experiences an average snowfall of 25.14 cm during December, occurring over 4 days.
What are the typical wind conditions in Sussex County during December?
The average wind speed in Sussex County during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
Sussex County snow forecast December 2025
Track daily snowfall levels and discover Sussex County’s snowy potential this December ❄️
On average, Sussex County sees 4 snowy days during December, with approximately 25.1 cm of total snowfall.
December rainfall patterns in Sussex County
Explore the daily rainfall trends and prepare for Sussex Countys December weather 💧
Typically, Sussex County has 9 rainy days in December with a total of 310.7 mm of rainfall.
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Where is Sussex County?Get accurate weather forecasts for Sussex County, located at latitude 41.058 and longitude -74.753. Stay updated with localized weather information tailored for Sussex County.
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