December weather forecast
Mooresville, WV

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Weather in December

December, the first month of the winter in Mooresville, is still a cold month, with an average temperature varying between 29.3°F (-1.5°C) and 40.6°F (4.8°C).

Temperature

Mooresville in December demonstrates a small temperature transition, adjusting from an average high of a cool 50°F (10°C) in November to a wintry 40.6°F (4.8°C). Mooresville observes an average nighttime low-temperature of 29.3°F (-1.5°C) during the month of December.

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Mooresville, during December, the rain falls for 13 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, there are 187.8 rainfall days, and 36.46" (926mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Mooresville, during December, snow falls for 13.1 days and regularly aggregates up to 6.14" (156mm) of snow. In Mooresville, during the entire year, snow falls for 63.1 days and aggregates up to 32.32" (821mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Mooresville.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:06 pm EST.

Sunshine

The average sunshine in December is 3.8h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In Mooresville, in December, the average high-temperature is 40.6°F (4.8°C), and the average low-temperature is 29.3°F (-1.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 83%.

How many days does it rain in December in Mooresville?

In Mooresville, during December, the rain falls for 13 days and regularly aggregates up to 3.19" (81mm) of precipitation.

How many days does it snow in December?

In Mooresville, West Virginia, during December, snow falls for 13.1 days and regularly aggregates up to 6.14" (156mm) of snow.

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Mooresville have in December?

In December, the average day length in Mooresville is 9h and 25min.

When is the sunrise / sunset in December in Mooresville?

On the first day of December, sunrise is at 7:22 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:06 pm EST.

How many hours of sunshine does Mooresville have in December?

In December, the average sunshine duration is 3.8h.

When is the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index intensity in December?

In Mooresville, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Mooresville, WV

Average temperature in December - Mooresville, WV
  • Average high temperature in December: 40.6°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Mooresville, WV

Average pressure in December - Mooresville, WV
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Mooresville, WV

Average wind speed in December - Mooresville, WV
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Mooresville, WV

Average humidity in December - Mooresville, WV
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (77%).

Average rainfall in December
Mooresville, WV

Average rainfall in December - Mooresville, WV
  • Average rainfall in December: 3.19"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in December
Mooresville, WV

Average rainfall days in December - Mooresville, WV
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is January (11.1 days).

Average snowfall in December
Mooresville, WV

Average snowfall in December - Mooresville, WV
  • Average snowfall in December: 6.14"

The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Mooresville, WV

Average snowfall days in December - Mooresville, WV
  • Average snowfall days in December: 13.1 days

The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Mooresville, WV

Average daylight in December / Average sunshine in December - Mooresville, WV
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Mooresville, WV

Average sunshine days in December - Mooresville, WV
  • Average sunshine days in December: 10 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.7 days).

Average UV index in December
Mooresville, WV

Average UV index in December - Mooresville, WV
  • Average UV index in December: 1

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Mooresville, WV

Average cloud cover in December - Mooresville, WV
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Mooresville, WV

Average visibility in December - Mooresville, WV
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

Mooresville, West Virginia, USA

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