December weather forecast
Blackville, SC

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Weather in December

December, the first month of the winter in Blackville, is also a moderate month, with an average temperature varying between 57.2°F (14°C) and 43.3°F (6.3°C).

Temperature

The move into December indicates a slight reduction in the average high-temperature, down from November's refreshing 63.3°F (17.4°C) to a mild 57.2°F (14°C). Blackville experiences a consistent average temperature of 43.3°F (6.3°C) throughout the nights in December.

Humidity

The most humid month is December, with an average relative humidity of 76%.

Rainfall

December is the month with the most rainfall. Rain falls for 10.6 days and accumulates 3.31" (84mm) of precipitation.

Snowfall

January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.16" (4mm) of snow. In Blackville, during the entire year, snow falls for 1.1 days and aggregates up to 0.43" (11mm) of snow.

Daylight

The month with the shortest days in Blackville is December, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 7:11 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:28 pm EST.

Sunshine

With an average of 5.5h of sunshine, December has the least sunshine of the year in Blackville.

UV index

The months with the lowest UV index in Blackville, South Carolina, are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the temperature in December in Blackville?

The high-temperature during December is 57.2°F (14°C) and the low-temperature is 43.3°F (6.3°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 93.2°F (34°C).

What is the most humid month in Blackville?

The most humid month is December, with an average relative humidity of 76%.

What is the average humidity in December in Blackville?

In Blackville, South Carolina, the average relative humidity in December is 76%.

What is the wettest month in Blackville?

The month with the most rainfall is December, when the rain falls for 10.6 days and typically aggregates up to 3.31" (84mm) of precipitation.

How much does it rain in Blackville in December?

In Blackville, during December, the rain falls for 10.6 days and regularly aggregates up to 3.31" (84mm) of precipitation.

When does it start to snow in Blackville?

December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.16" (4mm) of snow.

What is the month with the shortest days in Blackville?

December has the shortest days of the year, with an average of 10h and 0min of daylight.

How many hours of daylight does Blackville have in December?

The average day length in December in Blackville is 9h and 59min.

When is the sunrise / sunset in December in Blackville?

On the first day of December, sunrise is at 7:11 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:28 pm EST.

What is the month with the least sunshine in Blackville?

December has the least sunshine of the year in Blackville, with an average of 5.5h of sunshine.

How many hours of sunshine does Blackville have in December?

The average sunshine duration in December in Blackville, South Carolina, is 5.5h.

What is the month with the lowest UV index in Blackville?

The months with the lowest UV index in Blackville are January and December, with an average maximum UV index of 3.

What is the UV index intensity in December in Blackville?

In Blackville, South Carolina, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Blackville, SC

Average temperature in December - Blackville, SC
  • Average high temperature in December: 57.2°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in December: 43.3°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39°F).

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Average pressure in December
Blackville, SC

Average pressure in December - Blackville, 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 (29.97"Hg).

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Average wind speed in December
Blackville, SC

Average wind speed in December - Blackville, SC
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Blackville, SC

Average humidity in December - Blackville, SC
  • Average humidity in December: 76%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is January (70%).

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Average rainfall in December
Blackville, SC

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

The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is November (1.61").

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Average rainfall days in December
Blackville, SC

Average rainfall days in December - Blackville, SC
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is November (7.9 days).

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Average snowfall in December
Blackville, SC

Average snowfall in December - Blackville, SC
  • Average snowfall in December: 0.16"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Blackville, SC

Average snowfall days in December - Blackville, SC
  • Average snowfall days in December: 0.2 days

The months with the highest number of snowfall days are January and February (0.4 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
Blackville, SC

Average daylight in December / Average sunshine in December - Blackville, SC
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Blackville, SC

Average sunshine days in December - Blackville, SC
  • Average sunshine days in December: 19 days

The month with the most sunshine days is October (20.5 days).
The months with the least sunshine days are July and August (10 days).

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Average UV index in December
Blackville, SC

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

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in December
Blackville, SC

Average cloud cover in December - Blackville, SC
  • Average cloud cover in December: 41

The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 27).

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Average visibility in December
Blackville, SC

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

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