December weather forecast
Forestdale, SC

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Weather in December

The first month of the winter, December, is still a mild month in Forestdale, South Carolina, with temperature in the range of an average low of 45.9°F (7.7°C) and an average high of 60.6°F (15.9°C).

Temperature

The shift from November to December includes a small decrease in the average high-temperature, from 66.2°F (19°C) to a still refreshing 60.6°F (15.9°C). Forestdale anticipates an average minimum temperature of 45.9°F (7.7°C) in the month of December.

Humidity

The most humid month in Forestdale is December, with an average relative humidity of 77%.

Rainfall

In Forestdale, during December, the rain falls for 10.8 days and regularly aggregates up to 4.17" (106mm) of precipitation. In Forestdale, during the entire year, the rain falls for 172.6 days and collects up to 39.13" (994mm) 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 0.04" (1mm) of snow. In Forestdale, during the entire year, snow falls for 0.9 days and aggregates up to 0.39" (10mm) of snow.

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 7:05 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:24 pm EST.

Sunshine

With an average of 5.6h of sunshine, December has the least sunshine of the year.

UV index

In Forestdale, the average daily maximum UV index in December is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 4 during December translates into the following guidance:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

In December, the average high-temperature and low-temperature are 60.6°F (15.9°C) and 45.9°F (7.7°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 95°F (35°C).

What is the most humid month?

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

What is the average humidity in December?

In Forestdale, the average relative humidity in December is 77%.

How much does it rain in December?

In December, the rain falls for 10.8 days. Throughout December, 4.17" (106mm) of precipitation is accumulated.

When does it start to snow?

December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

The average day length in December is 10h and 1min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:05 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:24 pm EST.

What is the month with the least sunshine in Forestdale?

With an average of 5.6h of sunshine, December has the least sunshine of the year in Forestdale.

How long on average sun shines in December?

The average sunshine duration in December is 5.6h.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe 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
Forestdale, SC

Average temperature in December - Forestdale, SC
  • Average high temperature in December: 60.6°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in December: 45.9°F

The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

Average pressure in December
Forestdale, SC

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

Average wind speed in December
Forestdale, SC

Average wind speed in December - Forestdale, SC
  • Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in December
Forestdale, SC

Average humidity in December - Forestdale, SC
  • Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and March (72%).

Average rainfall in December
Forestdale, SC

Average rainfall in December - Forestdale, SC
  • Average rainfall in December: 4.17"

The wettest month (with the highest rainfall) is August (6.22").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in December
Forestdale, SC

Average rainfall days in December - Forestdale, SC
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is August (23.4 days).
The month with the least rainy days is November (8.2 days).

Average snowfall in December
Forestdale, SC

Average snowfall in December - Forestdale, SC
  • Average snowfall in December: 0.04"

The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Forestdale, SC

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

The months with the highest number of snowfall days are January and February (0.3 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
Forestdale, SC

Average daylight in December / Average sunshine in December - Forestdale, 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 4min

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 36min).

Average sunshine days in December
Forestdale, SC

Average sunshine days in December - Forestdale, SC
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (5.8 days).

Average UV index in December
Forestdale, SC

Average UV index in December - Forestdale, SC
  • Average UV index in December: 4

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in December
Forestdale, SC

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

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

Average visibility in December
Forestdale, SC

Average visibility in December - Forestdale, 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).

Forestdale, South Carolina, USA

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