Temperature in Delaware in December

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

Delaware, the United States of America, a region in the United States of America, experiences low average maximum daytime temperatures in December, ranging from 8°C (46°F) in Talleyville to 11°C (52°F) in Seaford. Nighttime temperatures generally drop to 1°C (34°F) in Seaford and -1°C (30°F) in Talleyville. During December, winter is in full swing.

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

Explore the map below to discover average December temperatures at the top destinations in Delaware. For a deeper dive, simply click on any destination dot.

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 Delaware, check out our Delaware's climate page.

See also: Delaware weather by month.

Best Places to Visit in Delaware in December

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

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 Delaware

Delaware temperatures in December: frequently asked questions

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

Expect daytime temperatures around 10°C (50°F) in Dover. That makes December a low month for Delaware, the United States of America.

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

Dover sees nighttime lows close to 1°C (34°F) in December.

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

According to our recent database analysis, Seaford is the warmest city. It experiences an average maximum daytime temperature of approximately 11°C (52°F) and rarely drops below 1°C (34°F) during the night.

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

When looking through our records, we find that Talleyville stands out as the coolest city in Delaware, the United States of America for the month of December. Daytime highs average 8°C (46°F) and it cools down to about -1°C (30°F) at night.

Interested in more climate information?

We have much more information about the climate in Delaware.

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.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

Yosemite National Park is definitely worth a visit

Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States

Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes

A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States

Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.
Must visit in the United States of America →