Historic Nassau Street architecture in Princeton

Weather · December

Princeton weather in December

Average highs of 44°F, lows of 29°F and 4.0 in of rain, from 30 years of weather records.

December is Princeton’s 10th warmest month, with average highs of 44°F and lows of 29°F. That is 10° cooler than November, and 19° below the yearly average high.

Average high
44°F
Average low
29°F
Precipitation
4.0 in
Wet days
11
Snow
4.6 in
Sunrise · sunset
7:14 AM · 4:33 PM

December across the year

  1. 40°24°Jan
  2. 43°26°Feb
  3. 51°33°Mar
  4. 63°42°Apr
  5. 72°52°May
  6. 81°61°Jun
  7. 86°67°Jul
  8. 84°65°Aug
  9. 77°58°Sep
  10. 66°46°Oct
  11. 55°36°Nov
  12. 44°29°Dec

High and low Rain

What to wear in December

  • Cold days: a winter coat, hat and gloves.
  • Freezing nights: expect frost on cars in the morning.
  • Pack an umbrella or rain jacket: rain or snow falls on about 11 days this month.
  • Snow is likely (about 5 inches on average): waterproof boots help.

December is good for

What’s on in Princeton in December

See all upcoming events and school days off.

Around Princeton

View south along Quaker Road (Mercer County Route 533) at Parkside Drive in Princeton, Mercer County, New Jersey
2017-09-12 17 27 10 View south along Quaker Road (Mercer County Route 533) at Parkside Drive in Princeton, Mercer County, New JerseyFamartin · CC BY-SA 4.0
Princeton Battlefield State Park (Princeton, NJ)
Princeton Battlefield State Park (Princeton, NJ)Daderot · CC BY-SA 3.0
Princeton Battle Field
Princeton Battle Field 01Christopher Muflam · CC BY-SA 4.0

See Princeton

A look around town before you go.

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December compared with the months around it

MonthHighLowRain
November55°F36°F3.2 in
December44°F29°F4.0 in
January40°F24°F3.3 in

Planning a trip? See the best time to visit Princeton and today’s forecast.

Questions

How hot does it get in Princeton in December?

Average highs are 44°F and average lows 29°F, for a daily mean of 37°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Princeton in December?

December averages 4.0 in of precipitation over about 11 days with at least 0.01 in. It is the 7th wettest month of the year.

Does it snow in Princeton in December?

Yes, about 4.6 in of snow on average.

What time is sunset in Princeton in December?

Around mid-December the sun rises about 7:14 AM and sets about 4:33 PM, for roughly 9.3 hours of daylight.

Is December a good time to visit Princeton?

The mildest months for visiting are May, September, October. December is cold, with Christmas lights and New Year’s Eve events.

NOAA U.S. Climate Normals 1991–2020, Trenton Mercer Co Ap station (9.7 mi from downtown). Sunrise and sunset are calculated for December 15 at the city’s coordinates.

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