December weather forecast
Oak Grove, SC

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Weather in December

The first month of the winter, December, is still a refreshing month in Oak Grove, South Carolina, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 56.1°F (13.4°C).

Temperature

Oak Grove's weather subtly changes with the onset of December, barely falling from an enjoyable 61.9°F (16.6°C) in November to a mild 56.1°F (13.4°C). Oak Grove observes an average low-temperature of 41.2°F (5.1°C) during December nights.

Humidity

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

Rainfall

December is the month with the most rainfall in Oak Grove. Rain falls for 11.8 days and accumulates 3.43" (87mm) of precipitation.

Snowfall

January through March and December are months with snowfall in Oak Grove. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Oak Grove, during the entire year, snow falls for 1.8 days and aggregates up to 1.5" (38mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:12 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:26 pm EST.

Sunshine

With an average of 5.3h of sunshine, December has the least sunshine of the year.

UV index

The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 3 during December translates into the following guidance:
Make use of precautions - Shielding skin and eyes from injury is a requirement. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Oak Grove in December?

The high-temperature during December is 56.1°F (13.4°C) and the low-temperature is 41.2°F (5.1°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is calculated to be 91.4°F (33°C).

What is the most humid month?

The most humid month is December, with an average relative humidity of 76%.

What is the average humidity in December?

In Oak Grove, the average relative humidity in December is 76%.

What is the rainiest month?

The month with the most rainfall is December, when the rain falls for 11.8 days and typically aggregates up to 3.43" (87mm) of precipitation.

How much does it rain in December?

In Oak Grove, South Carolina, during December, the rain falls for 11.8 days and regularly aggregates up to 3.43" (87mm) of precipitation.

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?

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

How many hours of daylight does Oak Grove have in December?

In Oak Grove, the average day length in December is 9h and 56min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:12 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:26 pm EST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 5.3h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 5.3h.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Oak Grove, SC

Average temperature in December - Oak Grove, SC
  • Average high temperature in December: 56.1°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in December: 41.2°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).

Average pressure in December
Oak Grove, SC

Average pressure in December - Oak Grove, 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 (29.97"Hg).

Average wind speed in December
Oak Grove, SC

Average wind speed in December - Oak Grove, SC
  • Average wind speed in December: 7.6mph

The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in December
Oak Grove, SC

Average humidity in December - Oak Grove, 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%).

Average rainfall in December
Oak Grove, SC

Average rainfall in December - Oak Grove, SC
  • Average rainfall in December: 3.43"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in December
Oak Grove, SC

Average rainfall days in December - Oak Grove, SC
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is October (8.9 days).

Average snowfall in December
Oak Grove, SC

Average snowfall in December - Oak Grove, SC
  • Average snowfall in December: 0.04"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Oak Grove, SC

Average snowfall days in December - Oak Grove, SC
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Oak Grove, SC

Average daylight in December / Average sunshine in December - Oak Grove, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in December
Oak Grove, SC

Average sunshine days in December - Oak Grove, SC
  • Average sunshine days in December: 17.9 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (10 days).

Average UV index in December
Oak Grove, SC

Average UV index in December - Oak Grove, SC
  • Average UV index in December: 3

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 2).

Average cloud cover in December
Oak Grove, SC

Average cloud cover in December - Oak Grove, 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 October (Cloud cover 28).

Average visibility in December
Oak Grove, SC

Average visibility in December - Oak Grove, 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).

Oak Grove, South Carolina, USA

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