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Weather in Princeton, New Jersey for December 2025

Your guide to Princeton weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Princeton usually enjoys a light touch of snow in December.
    According to Princeton snow forecast for December 2025, 2 snowy days are expected until the end of the month. The closest date with snow is Sunday, December 28.

    • Temperatures

  • Until now, December 2025 in Princeton is cooler than usual, with temperatures averaging 2 °F, this is -2.2 °F below the typical seasonal average.

  • The forecast for the next days in Princeton predicts temperatures to be around 5 °F, close to the historical average.

  • In general, the average temperature in Princeton at the beginning of December is 3 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 5.6 °F by the end of December.

    • Rain 🌧️

  • The climate of Princeton in December is notably wet, with an average of 11 rainy days, and a total of 221.6 mm of precipitation.

    • More

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

Average dry days
18
Dry days
Average rainy days
11
Rainy days
Average snowy days
2
Snow days
Average temperatures
6°/0°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Princeton Weather December

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

Temperatures trend during December in Princeton

See the weather trend as well as the moving average line

December weather in Princeton day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 3° /-3° 0 mm 0 cm
Dec. 2 Sunny
Sunny
 4° /-3° 59 mm 0 cm
Dec. 3 Sunny
Sunny
 4° /-3° 0 mm 0 cm
Dec. 4 Overcast
Overcast
 3° /-4° 0 mm 0 cm
Dec. 5 Heavy snow
Heavy snow
 2° /-4° 10 mm 3.3 cm
Dec. 6 Cloudy
Cloudy
 1° /-3° 0 mm 0 cm
Dec. 7 Partly cloudy
Partly cloudy
 4° /-3° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 5° /-2° 0 mm 0 cm
Dec. 9 Fog
Fog
 6° /-2° 8.2 mm 0 cm
Dec. 10 Light rain shower
Light rain shower
 10° /2° 12.1 mm 0 cm
Dec. 11 Heavy snow
Heavy snow
 8° /2° 28.5 mm 0.3 cm
Dec. 12 Partly cloudy
Partly cloudy
 4° /-2° 2.9 mm 0 cm
Dec. 13 Overcast
Overcast
 3° /-3° 0 mm 0 cm
Dec. 14 Cloudy
Cloudy
 2° /-4° 4.5 mm 2.6 cm
Dec. 15 Overcast
Overcast
 4° /-4° 0 mm 0 cm
Dec. 16 Sunny
Sunny
 2° /-9° 0 mm 0 cm
Dec. 17 Overcast
Overcast
 4° /-4° 0 mm 0 cm
Dec. 18 Mist
Mist
 4° /-8° 0.1 mm 0 cm
Dec. 19 Moderate rain
Moderate rain
 14° /-2° 6.9 mm 0 cm
Dec. 20 Partly cloudy
Partly cloudy
 1° /-3° 0 mm 0 cm
Dec. 21 Partly cloudy
Partly cloudy
 8° /2° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 3° /-2° 0 mm 0 cm
Dec. 23 Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /-3° 1.8 mm 0 cm
Dec. 24 Sunny
Sunny
 6° /0° 0 mm 0 cm
Dec. 25 Partly cloudy
Partly cloudy
 4° /-1° 0 mm 0 cm
Dec. 26 Patchy rain possible
Patchy rain possible
 14° /3° 3.2 mm 0 cm
Dec. 27 Sunny
Sunny
 4° /0° 0 mm 0 cm
Dec. 28 Moderate or heavy snow showers
Moderate or heavy snow showers
 0° /-2° 3.5 mm 2.5 cm
Dec. 29 Mist
Mist
 0° /-6° 0.1 mm 0.1 cm
Dec. 30 Overcast
Overcast
 10° /4° 19.2 mm 0 cm
Dec. 31 Sunny
Sunny
 7° /-1° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Princeton 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 Princeton forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Princeton in December - FAQ

What are the expected maximum and minimum temperatures in Princeton during December?
Prepare for cooler days with highs just around 6° and colder nights, dipping below 0°.
How much rainfall should be expected in Princeton during December?
Significant rainfall exceeding 221.6 mm is expected in Princeton during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Princeton in December 2025?
Princeton experiences an average snowfall of 7.185 cm during December, occurring over 2 days.
What are the typical wind conditions in Princeton during December?
The average wind speed in Princeton during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

Princeton snow forecast December 2025

Track daily snowfall levels and discover Princeton’s snowy potential this December ❄️
On average, Princeton sees 2 snowy days during December, with approximately 7.2 cm of total snowfall.

December rainfall patterns in Princeton

Explore the daily rainfall trends and prepare for Princetons December weather 💧
Typically, Princeton has 11 rainy days in December with a total of 221.6 mm of rainfall.

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Location coordinates Where is Princeton?

Get accurate weather forecasts for Princeton, located at latitude 40.349 and longitude -74.659. Stay updated with localized weather information tailored for Princeton.

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