December weather forecast
Blackstock, SC

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Weather in December

December, the first month of the winter in Blackstock, is also a fresh month, with an average temperature fluctuating between 39.7°F (4.3°C) and 54.5°F (12.5°C).

Temperature

December's onset brings a negligible change in high-temperatures, falling from a refreshing 60.4°F (15.8°C) in November to a fresh 54.5°F (12.5°C). Blackstock experiences a nighttime temperature average of 39.7°F (4.3°C) during December.

Humidity

December is the most humid month in Blackstock, with an average relative humidity of 76%.

Rainfall

In Blackstock, in December, during 10.9 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Blackstock, during the entire year, the rain falls for 157.1 days and collects up to 31.06" (789mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. December is the month with the most snowfall. Snow falls for 0.3 days and accumulates 0.67" (17mm) of snow.

Daylight

December has the shortest days of the year in Blackstock, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:13 am and sunset at 5:14 pm. On the last day of December, sunrise is at 7:31 am and sunset at 5:24 pm EST.

Sunshine

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

UV index

In Blackstock, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 3 in December suggests the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are December temperatures in Blackstock?

In Blackstock, 54.5°F (12.5°C) is the average high-temperature and 39.7°F (4.3°C) is the average low-temperature during December. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 91.4°F (33°C).

What is the most humid month in Blackstock?

With an average relative humidity of 76%, December is the most humid month in Blackstock.

What is the average humidity in December in Blackstock?

In December, the average relative humidity is 76%.

How much does it rain in Blackstock in December?

In Blackstock, South Carolina, during December, the rain falls for 10.9 days and regularly aggregates up to 3.15" (80mm) of precipitation.

What is the snowiest month in Blackstock?

The month with the most snowfall is December, when snow falls for 0.3 days and typically aggregates up to 0.67" (17mm) of snow.

When does it start snowing in Blackstock?

December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.67" (17mm) of snow.

What is the month with the shortest days in Blackstock?

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

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

The average day length in December in Blackstock, South Carolina, is 9h and 53min.

When are sunrise and sunset in December in Blackstock?

On the first day of December, sunrise is at 7:13 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:24 pm EST.

What is the month with the least sunshine in Blackstock?

December has the least sunshine of the year in Blackstock, South Carolina, with an average of 5.5h of sunshine.

How many hours of sunshine does Blackstock have in December?

The average sunshine duration in December is 5.5h.

What is the UV index intensity in December in Blackstock?

In December, the average daily maximum UV index in Blackstock, South Carolina, 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 days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Blackstock, SC

Average temperature in December - Blackstock, SC
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in December: 39.7°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).

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Average pressure in December
Blackstock, SC

Average pressure in December - Blackstock, SC
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in December
Blackstock, SC

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

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in December
Blackstock, SC

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

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

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Average rainfall in December
Blackstock, SC

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

The wettest month (with the highest rainfall) is August (3.35").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in December
Blackstock, SC

Average rainfall days in December - Blackstock, SC
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is October (8.8 days).

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Average snowfall in December
Blackstock, SC

Average snowfall in December - Blackstock, SC
  • Average snowfall in December: 0.67"

The month with the highest snowfall is December (0.67").
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
Blackstock, SC

Average snowfall days in December - Blackstock, SC
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Blackstock, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Blackstock, SC

Average sunshine days in December - Blackstock, SC
  • Average sunshine days in December: 18.7 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (8.8 days).

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Average UV index in December
Blackstock, SC

Average UV index in December - Blackstock, 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
Blackstock, SC

Average cloud cover in December - Blackstock, SC
  • Average cloud cover in December: 42

The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in December
Blackstock, SC

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

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