December weather forecast
Sellers, SC

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Weather in December

The first month of the winter, December, is also a moderate month in Sellers, South Carolina, with an average temperature varying between 56.5°F (13.6°C) and 40.8°F (4.9°C).

Temperature

Transition into December subtly marks a drop in the average high-temperature, moderately moving from 62.2°F (16.8°C) in November to a still refreshing 56.5°F (13.6°C). Throughout the month of December, the nighttime temperature dips to an average of 40.8°F (4.9°C).

Humidity

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

Rainfall

In Sellers, South Carolina, in December, during 11.5 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. In Sellers, during the entire year, the rain falls for 171 days and collects up to 34.29" (871mm) of precipitation.

Snowfall

Months with snowfall in Sellers are January through March and December. December is the first month it typically snows in Sellers. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Sellers, during the entire year, snow falls for 1.6 days and aggregates up to 1.1" (28mm) of snow.

Daylight

December has the shortest days of the year in Sellers, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:06 am and sunset at 5:08 pm. On the last day of December, sunrise is at 7:23 am and sunset at 5:18 pm EST.

Sunshine

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

UV index

In December, the average daily maximum UV index in Sellers is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 3 during December leads to these instructions:
Take precautions - Protection against sunburn is recommended. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What are December temperatures in Sellers?

In Sellers, in December, the average high-temperature is 56.5°F (13.6°C), and the average low-temperature is 40.8°F (4.9°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 91.4°F (33°C).

What is the average humidity in December in Sellers?

In December, the average relative humidity in Sellers, South Carolina, is 77%.

How much does it rain in Sellers in December?

In Sellers, during December, the rain falls for 11.5 days and regularly aggregates up to 3.31" (84mm) of precipitation.

When does it start to snow in Sellers?

December is the first month it typically snows in Sellers. 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 Sellers?

With an average of 9h and 54min of daylight, December has the shortest days of the year in Sellers, South Carolina.

How many hours of daylight does Sellers have in December?

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

When is the sunrise / sunset in December in Sellers?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 5:08 pm. On the last day of the month, in Sellers, sunrise is at 7:23 am and sunset at 5:18 pm EST.

What are the months with the least sunshine in Sellers?

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

How long on average sun shines in December in Sellers?

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

What is the UV index reading in December in Sellers?

The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Sellers, SC

Average temperature in December - Sellers, 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: 40.8°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).

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Average pressure in December
Sellers, SC

Average pressure in December - Sellers, 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
Sellers, SC

Average wind speed in December - Sellers, SC
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in December
Sellers, SC

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

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

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Average rainfall in December
Sellers, SC

Average rainfall in December - Sellers, SC
  • Average rainfall in December: 3.31"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.54").

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Average rainfall days in December
Sellers, SC

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

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is October (8.7 days).

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Average snowfall in December
Sellers, SC

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

The month with the highest snowfall is February (0.63").
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
Sellers, SC

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

The months with the highest number of snowfall days are January and February (0.7 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
Sellers, SC

Average daylight in December / Average sunshine in December - Sellers, 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 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

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Average sunshine days in December
Sellers, SC

Average sunshine days in December - Sellers, SC
  • Average sunshine days in December: 18.3 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is July (8 days).

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Average UV index in December
Sellers, SC

Average UV index in December - Sellers, 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
Sellers, SC

Average cloud cover in December - Sellers, 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
Sellers, SC

Average visibility in December - Sellers, 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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Sellers, South Carolina, USA

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