December weather forecast
Whipper-Barnoy, SC

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Weather in December

December, the first month of the winter in Whipper-Barnoy, is still a mild month, with temperature in the range of an average low of 47.3°F (8.5°C) and an average high of 60.4°F (15.8°C).

Temperature

Whipper-Barnoy in December experiences a gentle temperature dip, with average high-temperatures reducing from a comfortable 65.8°F (18.8°C) in November to a mild 60.4°F (15.8°C). Nighttime temperature dips to a mean of 47.3°F (8.5°C) during December.

Humidity

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

Rainfall

In Whipper-Barnoy, in December, during 9.5 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Whipper-Barnoy, South Carolina, during the entire year, the rain falls for 154.4 days and collects up to 23.43" (595mm) of precipitation.

Snowfall

Months with snowfall are January, February and December. The month with the most snowfall days is December, when snow falls for 0.3 days.

Daylight

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

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

UV index

In December, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 4 suggests this advice:
Adopt protective measures - It is advised to guard against sun damage. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

The average high-temperature and low-temperature during December are 60.4°F (15.8°C) and 47.3°F (8.5°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 93.2°F (34°C).

What is the most humid month?

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

What is the average humidity in December?

The average relative humidity in December is 77%.

How much does it rain in December?

In Whipper-Barnoy, South Carolina, in December, it is raining for 9.5 days, with typically 2.4" (61mm) of accumulated precipitation.

When does it snow the most?

The month with the most snowfall days is December, when snow falls for 0.3 days.

When does it start snowing?

December is the first month it typically snows. Throughout December, there are 0.3 snowfall days.

What is the month with the shortest days?

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

How many hours of daylight does Whipper-Barnoy have in December?

In December, the average day length is 10h and 2min.

When 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?

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

How many hours of sunshine does Whipper-Barnoy have in December?

In December, the average sunshine duration is 5.6h.

What is the UV index reading in December?

In Whipper-Barnoy, the average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
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
Whipper-Barnoy, SC

Average temperature in December - Whipper-Barnoy, SC
  • Average high temperature in December: 60.4°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in December: 47.3°F

The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).

Average pressure in December
Whipper-Barnoy, SC

Average pressure in December - Whipper-Barnoy, SC
  • Average pressure in December: 30.13"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
Whipper-Barnoy, SC

Average wind speed in December - Whipper-Barnoy, SC
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in December
Whipper-Barnoy, SC

Average humidity in December - Whipper-Barnoy, SC
  • Average humidity in December: 77%

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

Average rainfall in December
Whipper-Barnoy, SC

Average rainfall in December - Whipper-Barnoy, SC
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in December
Whipper-Barnoy, SC

Average rainfall days in December - Whipper-Barnoy, SC
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (6.9 days).

Average snowfall days in December
Whipper-Barnoy, SC

Average snowfall days in December - Whipper-Barnoy, SC
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is December (0.3 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
Whipper-Barnoy, SC

Average daylight in December / Average sunshine in December - Whipper-Barnoy, 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
Whipper-Barnoy, SC

Average sunshine days in December - Whipper-Barnoy, SC
  • Average sunshine days in December: 19 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (6.1 days).

Average UV index in December
Whipper-Barnoy, SC

Average UV index in December - Whipper-Barnoy, 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
Whipper-Barnoy, SC

Average cloud cover in December - Whipper-Barnoy, SC
  • Average cloud cover in December: 40

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 26).

Average visibility in December
Whipper-Barnoy, SC

Average visibility in December - Whipper-Barnoy, 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).

Whipper-Barnoy, South Carolina, USA

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