Temperature in New Jersey in January

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

New Jersey, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in January ranging from 1°C (34°F) in Vernon to 6°C (43°F) in Cape May. Nighttime temperatures generally drop to -2°C (28°F) in Cape May and -8°C (18°F) in Vernon. January falls during the winter season. On average, it is one of the coldest months of the year.

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

Find the average daytime temperatures in January for the most popular destinations in New Jersey on the map below. Click on a destination dot for more detailed information.

Select a Month

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 January

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 January: blue is cold, red is hot.

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

New Jersey temperatures in January: frequently asked questions

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

Daytime temperatures in Seaside Heights typically peak at 5°C (41°F) in January, putting it in the low range.

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

Nighttime temperatures in Seaside Heights typically drop to around -4°C (25°F) in January.

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

From a thorough analysis of our records, Cape May clearly dominates in terms of high temperatures. The city witnesses daytime temperatures hovering around 6°C (43°F), and evenings that remain near -2°C (28°F).

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

Our database indicates that in January, Vernon is the city with the coolest temperatures in New Jersey, the United States of America. You can expect daytime highs of 1°C (34°F) and nighttime lows close to -8°C (18°F).

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

Most areas experience a moderate amount of sunshine, with approximately 163 hours of sunlight expected in Seaside Heights. This makes it neither too gloomy nor overly bright.

What is the water temperature in January?

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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