Delaware Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Delaware, the United States of America in December.

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Dover Newark Seaford Harrington

Planning a getaway to Delaware, the United States of America this December and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Delaware in December

Delaware, the United States of America is a region in the United States of America. December in Delaware generally has cold temperatures, with high precipitation. During December, winter is in full swing.

Temperatures

The average maximum temperatures are cold and range 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.

To explore the conditions in Delaware, the United States of America in more detail, check the map below.

Precipitation

In December, precipitation varies across different areas. From high rainfall in Seaford with an average of 112 mm (4.4 in) to high rainfall in Talleyville with 124 mm (4.9 in).

Explore Delaware by month

Pick a month to see the average temperature, rainfall and sunshine in Delaware — and find the best time to visit. (based on Dover)

January6°C (43°F) February7°C (45°F) March12°C (54°F) April18°C (64°F) May23°C (73°F) June28°C (82°F) This monthJuly31°C (88°F) August29°C (84°F) September26°C (79°F) October20°C (68°F) November14°C (57°F) December10°C (50°F)
Best Time to Visit Delaware →

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
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Delaware

What is the weather like in December for some of the most popular destinations in Delaware, the United States of America?

Temperature range in Delaware (December)

Precipitation variation in Delaware (December)

Dover

In December Dover generally has low temperatures with maximum daytime temperatures around 10°C (50°F), minimum nighttime temperatures around 1°C (34°F) and high monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
14°C (57°F)
10°C (50°F)
6°C (43°F)
Min temperature
4°C (39°F)
1°C (34°F)
-3°C (27°F)
Monthly rainfall
86 mm (3.4 in)
123 mm (4.8 in)
83 mm (3.3 in)
Monthly rainy days
9 days
11 days
10 days
Weather conditions
tolerable
poor
poor
Climate in Dover →

Newark

In December Newark generally has low temperatures with maximum daytime temperatures around 8°C (46°F), minimum nighttime temperatures around -1°C (30°F) and high monthly snow/rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
13°C (55°F)
8°C (46°F)
5°C (41°F)
Min temperature
3°C (37°F)
-1°C (30°F)
-4°C (25°F)
Monthly sun hours
155 hours
140 hours
153 hours
Monthly snow/rainfall
76 mm (3 in)
118 mm (4.6 in)
82 mm (3.2 in)
Monthly rainy days
10 days
12 days
10 days
Weather conditions
unpleasant
poor
poor
Climate in Newark →

Seaford

In December Seaford generally has low temperatures with maximum daytime temperatures around 11°C (52°F), minimum nighttime temperatures around 1°C (34°F) and high monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
15°C (59°F)
11°C (52°F)
7°C (45°F)
Min temperature
4°C (39°F)
1°C (34°F)
-3°C (27°F)
Monthly rainfall
84 mm (3.3 in)
112 mm (4.4 in)
85 mm (3.3 in)
Monthly rainy days
10 days
10 days
9 days
Weather conditions
tolerable
poor
poor
Climate in Seaford →

Harrington

In December Harrington generally has low temperatures with maximum daytime temperatures around 10°C (50°F), minimum nighttime temperatures around 1°C (34°F) and high monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
14°C (57°F)
10°C (50°F)
7°C (45°F)
Min temperature
4°C (39°F)
1°C (34°F)
-3°C (27°F)
Monthly rainfall
81 mm (3.2 in)
118 mm (4.6 in)
81 mm (3.2 in)
Monthly rainy days
9 days
11 days
10 days
Weather conditions
tolerable
poor
poor
Climate in Harrington →

Christiana

In December Christiana generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 0°C (32°F) and high monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
13°C (55°F)
9°C (48°F)
5°C (41°F)
Min temperature
3°C (37°F)
0°C (32°F)
-4°C (25°F)
Monthly sun hours
155 hours
140 hours
153 hours
Monthly rainfall
76 mm (3 in)
118 mm (4.6 in)
80 mm (3.1 in)
Monthly rainy days
9 days
11 days
10 days
Weather conditions
unpleasant
poor
poor
Climate in Christiana →

Is your destination not in the list? Have a look at all destinations in Delaware, in the United States of America.

Popular cities in December

Day & night temperatures, rainfall and average weather in Delaware in December.

City Weather Day temp Night temp Rainfall
Dover 10°C (50°F) 1°C (34°F) 123 mm (4.8 in)
Newark 8°C (46°F) -1°C (30°F) 118 mm (4.6 in)
Seaford 11°C (52°F) 1°C (34°F) 112 mm (4.4 in)
Harrington 10°C (50°F) 1°C (34°F) 118 mm (4.6 in)
Christiana 9°C (48°F) 0°C (32°F) 118 mm (4.6 in)
Delaware City 9°C (48°F) 0°C (32°F) 120 mm (4.7 in)

Delaware weather in December: frequently asked questions

What is the weather like in Delaware, the United States of America in December?

Expect poor weather across Delaware, the United States of America in December. The popular destination of Dover averages 10°C (50°F) by day and 1°C (34°F) at night during this winter month.

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

Daytime temperatures in Dover peak at roughly 10°C (50°F) in December, dropping to about 1°C (34°F) overnight.

Does Delaware, the United States of America get a lot of rain in December?

Delaware, the United States of America sees substantial rainfall in December. Dover typically averages about 123 mm (4.8 in), a mix of wet and dry days, but bring an umbrella.

Is December a Good Time to Visit Delaware, the United States of America?

In our opinion, December may not be the ideal time to visit Delaware, the United States of America due to the typically poor weather in Dover.

On average, the best time to visit Delaware, the United States of America is in May with generally perfect weather in Dover. In contrast, January, February and December tend to have poor weather conditions.

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.

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