December weather forecast and climate
Wilmington, NC

What is the temperature in December in Wilmington?

In December, in Wilmington, the average high-temperature is 59.4°F (15.2°C), and the average low-temperature is 37.8°F (3.2°C).

How many days does it rain in December in Wilmington?

In Wilmington, North Carolina, in December, it is raining for 9.4 days, with typically 3.6" (91.9mm) of accumulated precipitation.

When does it start to snow in Wilmington?

December is the first month it typically snows in Wilmington, North Carolina. Throughout December, in the average 0.3 snowfall days, it receives 0.8" (20.3mm) of snow.

What is the snowiest month in Wilmington?

December is the month with the most snowfall in Wilmington, North Carolina. Snow falls for 0.3 days and accumulates 0.8" (20.3mm) of snow.

What is the sea temperature in December in Wilmington?

In December, the average sea temperature is 62.6°F (17°C). Swimming in 62.6°F (17°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).
Average temperature in December - Wilmington, NC
  • Average high temperature in December: 59.3°F

The warmest month (with the highest average high temperature) is July (89.7°F).
The month with the lowest average high temperature is January (56.4°F).

  • Average low temperature in December: 37.8°F

The month with the highest average low temperature is July (72.6°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).

Average humidity in December - Wilmington, NC
  • Average humidity in December: 71.5%

The month with the highest relative humidity is August (80.7%).
The month with the lowest relative humidity is April (66.8%).

Average rainfall in December - Wilmington, NC
  • Average rainfall in December: 3.6"

The wettest month (with the highest rainfall) is September (7.8").
The driest month (with the lowest rainfall) is April (2.8").

Average rainfall days in December - Wilmington, NC
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is July (16.4 days).
The month with the lowest number of rainy days is April (8.5 days).

Average snowfall in December - Wilmington, NC
  • Average snowfall in December: 0.8"

The month with the highest snowfall is December (0.8").
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December - Wilmington, NC
  • Average snowfall days in December: 0.3 days

Months with the highest number of snowfall days are January, February and December (0.3 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in December - Wilmington, NC
  • Average sea temperature in December: 62.7°F

The best month for swimming (with the highest average sea temperature) is August (82.8°F).
The coldest month (with the lowest average sea temperature) is February (57.5°F).

Average daylight in December / Average sunshine in December - Wilmington, NC
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 5.8h

The month with most sunshine is June (Average sunshine: 9.3h).
The month with least sunshine is December (Average sunshine: 5.8h).

Average UV index in December - Wilmington, NC
  • Average UV index in December: 3

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 3).

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