December weather forecast
Green Hill Plantation, SC

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Weather in December

The first month of the winter, December, is also a fresh month in Green Hill Plantation, South Carolina, with an average temperature ranging between max 53.8°F (12.1°C) and min 38.5°F (3.6°C).

Temperature

The onset of December results in a small decrease in the average high-temperature, moderately receding from a refreshing 60.6°F (15.9°C) in November to a cool 53.8°F (12.1°C). During December, the average low-temperature is a wintry 38.5°F (3.6°C).

Humidity

December is the most humid month, with an average relative humidity of 77%.

Rainfall

In Green Hill Plantation, in December, it is raining for 10.5 days, with typically 1.69" (43mm) of accumulated precipitation. In Green Hill Plantation, during the entire year, the rain falls for 136.3 days and collects up to 19.02" (483mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, there are 2.3 snowfall days, and 0.79" (20mm) of snow is accumulated.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year in Green Hill Plantation.
On the first day of December, sunrise is at 7:19 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:30 pm EST.

Sunshine

With an average of 5.1h of sunshine, December has the least sunshine of the year.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 2 during December leads to these instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

Green Hill Plantation in December has an average high-temperature of 53.8°F (12.1°C) and an average low-temperature of 38.5°F (3.6°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in September is calculated to be 89.6°F (32°C).

What is the most humid month?

With an average relative humidity of 77%, December is the most humid month.

What is the average humidity in December?

In Green Hill Plantation, the average relative humidity in December is 77%.

How much does it rain in December?

In Green Hill Plantation, during December, the rain falls for 10.5 days and regularly aggregates up to 1.69" (43mm) of precipitation.

When does it start to snow?

December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 53min.

When are sunrise and sunset in December?

On the first day of December in Green Hill Plantation, sunrise is at 7:19 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:30 pm EST.

What is the month with the least sunshine?

With an average of 5.1h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Green Hill Plantation have in December?

In December, the average sunshine duration is 5.1h.

When is the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat 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
Green Hill Plantation, SC

Average temperature in December - Green Hill Plantation, SC
  • Average high temperature in December: 53.8°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.2°F).

  • Average low temperature in December: 38.5°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

Average pressure in December
Green Hill Plantation, SC

Average pressure in December - Green Hill Plantation, SC
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in December
Green Hill Plantation, SC

Average wind speed in December - Green Hill Plantation, SC
  • Average wind speed in December: 6.4mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Green Hill Plantation, SC

Average humidity in December - Green Hill Plantation, SC
  • Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

Average rainfall in December
Green Hill Plantation, SC

Average rainfall in December - Green Hill Plantation, SC
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is September (0.79").

Average rainfall days in December
Green Hill Plantation, SC

Average rainfall days in December - Green Hill Plantation, SC
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is October (7.2 days).

Average snowfall in December
Green Hill Plantation, SC

Average snowfall in December - Green Hill Plantation, SC
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Green Hill Plantation, SC

Average snowfall days in December - Green Hill Plantation, SC
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (0.9 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
Green Hill Plantation, SC

Average daylight in December / Average sunshine in December - Green Hill Plantation, 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 1min

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 6min).

Average sunshine days in December
Green Hill Plantation, SC

Average sunshine days in December - Green Hill Plantation, SC
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in December
Green Hill Plantation, SC

Average UV index in December - Green Hill Plantation, SC
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Green Hill Plantation, SC

Average cloud cover in December - Green Hill Plantation, SC
  • Average cloud cover in December: 44

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).

Average visibility in December
Green Hill Plantation, SC

Average visibility in December - Green Hill Plantation, SC
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Green Hill Plantation, South Carolina, USA

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