Temperature in New Jersey in December

Daytime highs, nighttime lows and the warmest cities in New Jersey, the United States of America this December.

New Jersey, the United States of America, a region in the United States of America, experiences low average maximum daytime temperatures in December, ranging from 5°C (41°F) in Vernon to 10°C (50°F) in Cape May. Nighttime temperatures generally drop to 2°C (36°F) in Cape May and -4°C (25°F) in Vernon. December falls during the winter season.

What is the temperature of the different cities in New Jersey, the United States of America in December?

Discover the typical December temperatures for the most popular locations of New Jersey on the map below. Detailed insights are just a click away.

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Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit New Jersey, check out our New Jersey's climate page.

See also: New Jersey weather by month.

Best Places to Visit in New Jersey in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across New Jersey.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in December: blue is cold, red is hot.

See all December weather averages, cities and regions in New Jersey

New Jersey temperatures in December: frequently asked questions

How hot does it get in New Jersey, the United States of America in December?

Average daytime highs in New Jersey, the United States of America during December reach about 9°C (48°F) in Seaside Heights.

How cold does it get at night in New Jersey, the United States of America in December?

Nighttime temperatures in Seaside Heights typically drop to around 0°C (32°F) in December.

What is the warmest city in December in New Jersey, the United States of America?

According to our recent database analysis, Cape May is the warmest city. It experiences an average maximum daytime temperature of approximately 10°C (50°F) and rarely drops below 2°C (36°F) during the night.

What is the coldest city in December in New Jersey, the United States of America?

When looking through our records, we find that Vernon stands out as the coolest city in New Jersey, the United States of America for the month of December. Daytime highs average 5°C (41°F) and it cools down to about -4°C (25°F) at night.

How much sun does New Jersey, the United States of America get in December?

Most cities enjoy a balanced amount of sunshine, with around 140 hours of sunlight anticipated in Seaside Heights. This ensures the days are neither too dim nor excessively sunny.

What is the water temperature in December?

The water temperature averages approximately 6°C (43°F) in Cape May this month, generally too cold for comfortable swimming.

Interested in more climate information?

We have much more information about the climate in New Jersey.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

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