December weather forecast
Mullins, SC

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Weather in December

The first month of the winter, December, is also a moderate month in Mullins, South Carolina, with an average temperature fluctuating between 56.5°F (13.6°C) and 41°F (5°C).

Temperature

December is characterized by a slight reduction in average high-temperature, easing from a comfortable 62.2°F (16.8°C) in November to a moderate 56.5°F (13.6°C). The average low-temperature of 41°F (5°C) is witnessed during December.

Humidity

The average relative humidity in December in Mullins is 77%.

Rainfall

In Mullins, South Carolina, in December, it is raining for 11.5 days, with typically 3.15" (80mm) of accumulated precipitation. In Mullins, during the entire year, the rain falls for 167.8 days and collects up to 32.68" (830mm) of precipitation.

Snowfall

Months with snowfall in Mullins are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Mullins, during the entire year, snow falls for 1.4 days and aggregates up to 0.83" (21mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 7:05 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:17 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.6h of sunshine.

UV index

In Mullins, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 3 in December suggests the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Mullins in December?

The high-temperature, in December, in Mullins, is 56.5°F (13.6°C), while the low-temperature averages to 41°F (5°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 91.4°F (33°C).

What is the average humidity in December in Mullins?

In December, the average relative humidity in Mullins is 77%.

How much does it rain in Mullins in December?

In Mullins, South Carolina, during December, the rain falls for 11.5 days and regularly aggregates up to 3.15" (80mm) of precipitation.

When does it start snowing in Mullins?

December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days in Mullins?

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

What is the average length of the day in December in Mullins?

In December, the average day length is 9h and 55min.

When is the sunrise / sunset in December in Mullins?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 5:07 pm. On the last day of the month, in Mullins, South Carolina, sunrise is at 7:22 am and sunset at 5:17 pm EST.

What are the months with the least sunshine in Mullins?

The months with the least sunshine in Mullins, South Carolina, are January and December, with an average of 5.6h of sunshine.

How many hours of sunshine does Mullins have in December?

In December, the average sunshine duration in Mullins is 5.6h.

How high is the UV index in December in Mullins?

In December, the average daily maximum UV index in Mullins is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Mullins, SC

Average temperature in December - Mullins, SC
  • Average high temperature in December: 56.5°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in December: 41°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).

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Average pressure in December
Mullins, SC

Average pressure in December - Mullins, SC
  • Average pressure in December: 30.13"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in December
Mullins, SC

Average wind speed in December - Mullins, SC
  • Average wind speed in December: 6.7mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Mullins, SC

Average humidity in December - Mullins, SC
  • Average humidity in December: 77%

The months with the highest relative humidity are May, June, August and September (78%).
The month with the lowest relative humidity is January (73%).

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Average rainfall in December
Mullins, SC

Average rainfall in December - Mullins, SC
  • Average rainfall in December: 3.15"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (1.5").

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Average rainfall days in December
Mullins, SC

Average rainfall days in December - Mullins, SC
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is October (8.5 days).

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Average snowfall in December
Mullins, SC

Average snowfall in December - Mullins, SC
  • Average snowfall in December: 0.04"

The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Mullins, SC

Average snowfall days in December - Mullins, SC
  • Average snowfall days in December: 0.1 days

The months with the highest number of snowfall days are January and February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Mullins, SC

Average daylight in December / Average sunshine in December - Mullins, SC
  • Average daylight in December: 9h and 5min

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: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

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Average sunshine days in December
Mullins, SC

Average sunshine days in December - Mullins, SC
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (8.2 days).

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Average UV index in December
Mullins, SC

Average UV index in December - Mullins, SC
  • Average UV index in December: 3

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in December
Mullins, SC

Average cloud cover in December - Mullins, SC
  • Average cloud cover in December: 40

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in December
Mullins, SC

Average visibility in December - Mullins, SC
  • 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).

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Mullins, South Carolina, USA

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