December weather forecastThe Groves, SC

December

Weather in December

December, the first month of the winter in The Groves, is still a mild month, with an average temperature ranging between max 60.6°F (15.9°C) and min 50°F (10°C).

Temperature

The arrival of December sees an average high-temperature of a moderate 60.6°F (15.9°C), hardly diverging from November's 65.7°F (18.7°C). Throughout the month of December, The Groves witnesses an average temperature of 50°F (10°C).

Humidity

With an average relative humidity of 78%, December is the most humid month.

Rainfall

In The Groves, during December, the rain falls for 10.5 days and regularly aggregates up to 4.25" (108mm) of precipitation. Throughout the year, there are 182.9 rainfall days, and 44.69" (1135mm) of precipitation is accumulated.

Snowfall

In The Groves, South Carolina, snow does not fall in 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 the month, sunrise is at 7:04 am and sunset at 5:13 pm. On the last day of December, sunrise is at 7:21 am and sunset at 5:23 pm EST.

Sunshine

With an average of 5.7h of sunshine, December has the least sunshine of the year.

UV index

In December, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 4 transforms into these recommendations:
Be vigilant - Preventing sunburn is recommended. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in December, in The Groves, is 60.6°F (15.9°C), while the low-temperature averages to 50°F (10°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 91.4°F (33°C).

With an average relative humidity of 78%, December is the most humid month.

In The Groves, the average relative humidity in December is 78%.

In The Groves, South Carolina, in December, it is raining for 10.5 days, with typically 4.25" (108mm) of accumulated precipitation.

In The Groves, snow does not fall in March through December.

In The Groves, South Carolina, in December, it doesn't snow. In January, it regularly snows.

The month with the shortest days is December, with an average of 10h and 0min of daylight.

The average day length in December is 10h and 2min.

On the first day of December, sunrise is at 7:04 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:23 pm EST.

December has the least sunshine of the year, with an average of 5.7h of sunshine.

In December, the average sunshine duration is 5.7h.

In The Groves, the average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

65.7°F

60.6°F

57.2°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.8mph

9.7mph

9.9mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

8.6

10.5

9.8

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

19.3

18.2

19.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
The Groves, SC

Average high temperature in December: 60.6°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (57.2°F).

Average low temperature in December: 50°F

The month with the highest average low temperature is July (77.9°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).

Average pressure in December
The Groves, SC

Average pressure in December: 30.12"Hg

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

Average wind speed in December
The Groves, SC

Average wind speed in December: 9.1mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

Average humidity in December
The Groves, SC

Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (73%).

Average rainfall in December
The Groves, SC

Average rainfall in December: 4.25"

The wettest month (with the highest rainfall) is August (8.03").
The driest month (with the least rainfall) is January (1.38").

Average rainfall days in December
The Groves, SC

Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is August (25.8 days).
The month with the least rainy days is November (8.6 days).

Average snowfall days in December
The Groves, SC

Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in December /
Average sunshine in December
The Groves, 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 42min

The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in December
The Groves, SC

Average sunshine days in December: 18.2 days

The months with the most sunshine days are January and November (19.3 days).
The month with the least sunshine days is August (3 days).

Average UV index in December
The Groves, SC

Average UV index in December: 4

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

Average cloud cover in December
The Groves, SC

Average cloud cover in December: 39

The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).

Average visibility in December
The Groves, 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).