December weather forecast
Beech Island, SC

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Weather in December

The first month of the winter, December, is still a mild month in Beech Island, South Carolina, with an average temperature fluctuating between 42.8°F (6°C) and 57.4°F (14.1°C).

Temperature

The start of December involves a subtle temperature drop, shifting from a comfortable 63.5°F (17.5°C) in November to a still refreshing 57.4°F (14.1°C). December witnesses an average nighttime temperature of 42.8°F (6°C).

Humidity

The most humid month in Beech Island is December, with an average relative humidity of 75%.

Rainfall

In Beech Island, in December, during 10.4 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Beech Island, during the entire year, the rain falls for 153.6 days and collects up to 29.33" (745mm) of precipitation.

Snowfall

January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 0.6 snowfall days, and 0.24" (6mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 7:14 am and sunset at 5:19 pm. On the last day of December, sunrise is at 7:31 am and sunset at 5:30 pm EST.

Sunshine

December has the least sunshine of the year, 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 health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 3 during December, leads to the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

In Beech Island, in December, the average high-temperature is 57.4°F (14.1°C), and the average low-temperature is 42.8°F (6°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 93.2°F (34°C).

What is the most humid month?

December is the most humid month, with an average relative humidity of 75%.

What is the average humidity in December?

The average relative humidity in December is 75%.

How many days does it rain in December?

In December, the rain falls for 10.4 days. Throughout December, 3.15" (80mm) of precipitation is accumulated.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 0.1 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.

How many hours of daylight does Beech Island have in December?

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

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:30 pm EST.

What is the month with the least sunshine?

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

How many hours of sunshine does Beech Island have in December?

The average sunshine duration in December is 5.4h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Beech Island, SC

Average temperature in December - Beech Island, SC
  • Average high temperature in December: 57.4°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 (54.1°F).

  • Average low temperature in December: 42.8°F

The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).

Average pressure in December
Beech Island, SC

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

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

Average wind speed in December
Beech Island, SC

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

The windiest months (with the highest average wind speed) are February and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Beech Island, SC

Average humidity in December - Beech Island, SC
  • Average humidity in December: 75%

The month with the highest relative humidity is December (75%).
The months with the lowest relative humidity are January, July and November (70%).

Average rainfall in December
Beech Island, SC

Average rainfall in December - Beech Island, SC
  • Average rainfall in December: 3.15"

The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in December
Beech Island, SC

Average rainfall days in December - Beech Island, SC
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (7.6 days).

Average snowfall in December
Beech Island, SC

Average snowfall in December - Beech Island, SC
  • Average snowfall in December: 0.04"

The month with the highest snowfall is January (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Beech Island, SC

Average snowfall days in December - Beech Island, SC
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Beech Island, SC

Average daylight in December / Average sunshine in December - Beech Island, 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: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in December
Beech Island, SC

Average sunshine days in December - Beech Island, SC
  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is July (8.2 days).

Average UV index in December
Beech Island, SC

Average UV index in December - Beech Island, 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).

Average cloud cover in December
Beech Island, SC

Average cloud cover in December - Beech Island, SC
  • Average cloud cover in December: 41

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

Average visibility in December
Beech Island, SC

Average visibility in December - Beech Island, 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).

Beech Island, South Carolina, USA

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