Temperature in The United States of America in December

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

The United States of America, experiences maximum daytime temperatures in December ranging from -18°C (0°F) in Barter Island to 27°C (81°F) in Wailuku. Nighttime temperatures generally drop to 21°C (70°F) in Wailuku and -22°C (-8°F) in Barter Island. December falls during the winter season.

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

To get a sense of December's typical temperatures in the key spots of the United States of America, explore the map below. Click on a point for an in-depth look.

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Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit the United States of America, check out our the United States of America's climate page.

See also: the the United States of America weather by month.

Best Places to Visit in the United States of America in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the United States of America.

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 the United States of America

The United States of America temperatures in December: frequently asked questions

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

Daytime temperatures in New York City typically peak at 8°C (46°F) in December, putting it in the low range.

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

New York City sees nighttime lows close to 2°C (36°F) in December.

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

According to our recent database analysis, Wailuku is the warmest city. It experiences an average maximum daytime temperature of approximately 27°C (81°F) and rarely drops below 21°C (70°F) during the night.

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

According to our data, Barter Island holds the title for the coldest city in the United States of America in December. It experiences maximum temperatures of approximately -18°C (0°F) and drops to lows of about -22°C (-8°F) during the night.

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

Across the United States of America, sunshine in December ranges from overcast in Annette Island (36 hours) to sunny in Las Vegas (250 hours).

What is the water temperature in December?

Across the United States of America, sea temperatures in December range from frigid at 6°C (43°F) in Cape May to perfect at 25°C (77°F) in Honolulu — so swimming conditions depend on which coast you pick.

Interested in more climate information?

We have much more information about the climate in the United States of America.

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.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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