December weather forecast
Halls Mill, SC

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Weather in December

The first month of the winter, December, is still a mild month in Halls Mill, South Carolina, with an average temperature fluctuating between 44.2°F (6.8°C) and 59.4°F (15.2°C).

Temperature

A subtle shift in Halls Mill's weather is observed as November turns into December, with the average high temperature reducing from a comfortable 65.3°F (18.5°C) to a mild 59.4°F (15.2°C). During December, the temperature in Halls Mill tends to dip to an average of 44.2°F (6.8°C) at night.

Humidity

August, September and December, with an average relative humidity of 76%, are the most humid months in Halls Mill.

Rainfall

In Halls Mill, in December, during 9.6 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, there are 138.1 rainfall days, and 18.98" (482mm) of precipitation is accumulated.

Snowfall

In Halls Mill, snow does not fall in January, March through December.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:09 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:28 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5.4h of sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the UV index of 3 transforms into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What are the temperatures in Halls Mill in December?

In Halls Mill, 59.4°F (15.2°C) is the average high-temperature and 44.2°F (6.8°C) is the average low-temperature during December. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 96.8°F (36°C).

What is the most humid month in Halls Mill?

August, September and December, with an average relative humidity of 76%, are most humid months in Halls Mill.

What is the average humidity in December in Halls Mill?

The average relative humidity in December in Halls Mill, South Carolina, is 76%.

How many days does it rain in December in Halls Mill?

In Halls Mill, South Carolina, during December, the rain falls for 9.6 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow in Halls Mill?

January, March through December are months without snowfall.

What is the month with the shortest days in Halls Mill?

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

What is the average length of the day in December in Halls Mill?

The average day length in December in Halls Mill, South Carolina, is 10h and 1min.

When is the sunrise / sunset in December in Halls Mill?

On the first day of December in Halls Mill, South Carolina, sunrise is at 7:09 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:28 pm EST.

What is the month with the least sunshine in Halls Mill?

December has the least sunshine of the year in Halls Mill, with an average of 5.4h of sunshine.

How long on average sun shines in December in Halls Mill?

In December, the average sunshine duration in Halls Mill is 5.4h.

What are the months with the lowest UV index in Halls Mill?

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

What is the UV index intensity in December in Halls Mill?

In Halls Mill, South Carolina, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes 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
Halls Mill, SC

Average temperature in December - Halls Mill, SC
  • Average high temperature in December: 59.4°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in December: 44.2°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 (39.9°F).

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Average pressure in December
Halls Mill, SC

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in December
Halls Mill, SC

Average wind speed in December - Halls Mill, SC
  • Average wind speed in December: 6.1mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Halls Mill, SC

Average humidity in December - Halls Mill, SC
  • Average humidity in December: 76%

The months with the highest relative humidity are August, September and December (76%).
The months with the lowest relative humidity are January and November (71%).

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Average rainfall in December
Halls Mill, SC

Average rainfall in December - Halls Mill, SC
  • Average rainfall in December: 2.05"

The wettest month (with the highest rainfall) is August (2.13").
The driest month (with the least rainfall) is November (0.71").

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Average rainfall days in December
Halls Mill, SC

Average rainfall days in December - Halls Mill, SC
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is November (6.4 days).

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Average snowfall in December
Halls Mill, SC

Average snowfall in December - Halls Mill, SC
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in December
Halls Mill, SC

Average snowfall days in December - Halls Mill, SC
  • Average snowfall days in December: 0.1 days

The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Halls Mill, SC

Average daylight in December / Average sunshine in December - Halls Mill, 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 2min

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 24min).

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Average sunshine days in December
Halls Mill, SC

Average sunshine days in December - Halls Mill, SC
  • Average sunshine days in December: 19.4 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is July (10.3 days).

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Average UV index in December
Halls Mill, SC

Average UV index in December - Halls Mill, SC
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (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
Halls Mill, SC

Average cloud cover in December - Halls Mill, SC
  • Average cloud cover in December: 42

The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are July and October (Cloud cover 30).

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Average visibility in December
Halls Mill, SC

Average visibility in December - Halls Mill, 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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Halls Mill, South Carolina, USA

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