December weather forecastMooresville, AL

December

Weather in December

December, the first month of the winter in Mooresville, is also a fresh month, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 51.6°F (10.9°C).

Temperature

As Mooresville enters December, the average high-temperature subtly lowers from the a mild 59.5°F (15.3°C) of November to a cool 51.6°F (10.9°C). During the month of December, the temperature in Mooresville falls to an average of 38.3°F (3.5°C).

Humidity

With an average relative humidity of 79%, December is the most humid month.

Rainfall

The month with the most rainfall is December, when the rain falls for 13.3 days and typically aggregates up to 4.45" (113mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Mooresville, in December, snow falls for 1.5 days, with typically accumulated 0.35" (9mm) of snow. In Mooresville, during the entire year, snow falls for 7.4 days and aggregates up to 1.77" (45mm) of snow.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:36 am and sunset at 4:36 pm. On the last day of December, sunrise is at 6:54 am and sunset at 4:47 pm CST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 2 during December leads to these advisories:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.

Frequently asked questions

The average high-temperature, in December, in Mooresville, is 51.6°F (10.9°C), while the average low-temperature is 38.3°F (3.5°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 89.6°F (32°C).

December is the most humid month, with an average relative humidity of 79%.

The average relative humidity in December is 79%.

The month with the most rainfall is December, when the rain falls for 13.3 days and typically aggregates up to 4.45" (113mm) of precipitation.

In Mooresville, during December, the rain falls for 13.3 days and regularly aggregates up to 4.45" (113mm) of precipitation.

In Mooresville, in December, snow falls for 1.5 days, with typically accumulated 0.35" (9mm) of snow.

The month with the shortest days in Mooresville is December, with an average of 9h and 54min of daylight.

The average day length in December is 9h and 53min.

On the first day of December, sunrise is at 6:36 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:47 pm CST.

In Mooresville, the average sunshine duration in December is 4.8h.

January and December, with an average maximum UV index of 2, are months with the lowest UV index.

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Mooresville, AL

  • Average high temperature in December: 51.6°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

Average pressure in December
Mooresville, AL

  • Average pressure in December: 30.15"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Mooresville, AL

  • Average wind speed in December: 8.1mph

The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in December
Mooresville, AL

  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Mooresville, AL

  • Average rainfall in December: 4.45"

The wettest month (with the highest rainfall) is December (4.45").
The driest months (with the least rainfall) are September and November (2.48").

Average rainfall days in December
Mooresville, AL

  • Average rainfall days in December: 13.3 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.4 days).

Average snowfall in December
Mooresville, AL

  • Average snowfall in December: 0.35"

The months with the highest snowfall are January and February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Mooresville, AL

  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

  • Average daylight in December: 9h and 54min

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

  • Average sunshine in December: 4h and 48min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Mooresville, AL

  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in December
Mooresville, AL

  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Mooresville, AL

  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in December
Mooresville, AL

  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).