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 ranging between min 40.8°F (4.9°C) and max 56.5°F (13.6°C).

Temperature

With the onset of December, the average high-temperature subtly recedes from November's enjoyable 62.2°F (16.8°C) to a moderate 56.5°F (13.6°C). Sellers, in December, observes a steady average low-temperature of 40.8°F (4.9°C).

Humidity

The average relative humidity in December is 77%.

Rainfall

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

Snowfall

January through March and December are months with snowfall. 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 Sellers, South Carolina, during the entire year, snow falls for 1.6 days and aggregates up to 1.1" (28mm) 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 December, sunrise is at 7:06 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:18 pm EST.

Sunshine

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

UV index

In Sellers, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 3 suggests these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

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

What is the average humidity in December?

The average relative humidity in December is 77%.

How much does it rain in December?

In December, the rain falls for 11.5 days. Throughout December, 3.31" (84mm) of precipitation is accumulated.

When does it start to snow?

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?

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

How many hours of daylight does Sellers have in December?

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

When are sunrise and sunset in December in Sellers?

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

What are the months with the least sunshine?

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

How long on average sun shines in December?

In December, the average sunshine duration is 5.6h.

What is the UV index intensity in December?

In Sellers, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Sellers, South Carolina, USA

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