December weather forecast
Bloomville, SC

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Weather in December

The first month of the winter, December, is still a mild month in Bloomville, South Carolina, with an average temperature varying between 57.4°F (14.1°C) and 42.3°F (5.7°C).

Temperature

Bloomville in December undergoes a slight reduction in the average high-temperature, shifting from November's refreshing 63°F (17.2°C) to a mild 57.4°F (14.1°C). An average nighttime temperature of 42.3°F (5.7°C) is noted during the month of December.

Humidity

In December, the average relative humidity is 76%.

Rainfall

The months with the most rainfall are August and December, with an average 3.23" (82mm) 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 1.2 snowfall days, and 0.47" (12mm) of snow is accumulated.

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 7:07 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:22 pm EST.

Sunshine

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

UV index

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 3 during December morphs into the following directions:
Ensure safety - Sun damage prevention is strongly urged. To guard against the harmful effects of the Sun, minimize exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

Bloomville in December has an average high-temperature of 57.4°F (14.1°C) and an average low-temperature of 42.3°F (5.7°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is computed to be 93.2°F (34°C).

What is the average humidity in December?

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

What is the rainiest month?

The months with the most rainfall are August and December, with an average 3.23" (82mm) of precipitation.

How much does it rain in December?

In Bloomville, South Carolina, during December, the rain falls for 10.7 days and regularly aggregates up to 3.23" (82mm) of precipitation.

When does it start to snow?

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.

What is the average length of the day in December?

In Bloomville, South Carolina, the average day length in December is 9h and 58min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:07 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:22 pm EST.

What is the month with the least sunshine?

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

How long on average sun shines in December?

The average sunshine duration in December is 5.6h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In Bloomville, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Bloomville, SC

Average temperature in December - Bloomville, SC
  • Average high temperature in December: 57.4°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (53.6°F).

  • Average low temperature in December: 42.3°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).

Average pressure in December
Bloomville, SC

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

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in December
Bloomville, SC

Average wind speed in December - Bloomville, SC
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
Bloomville, SC

Average humidity in December - Bloomville, SC
  • Average humidity in December: 76%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January and November (72%).

Average rainfall in December
Bloomville, SC

Average rainfall in December - Bloomville, SC
  • Average rainfall in December: 3.23"

The wettest months (with the highest rainfall) are August and December (3.23").
The driest month (with the least rainfall) is January (1.65").

Average rainfall days in December
Bloomville, SC

Average rainfall days in December - Bloomville, SC
  • Average rainfall days in December: 10.7 days

The months with the highest number of rainy days are July and August (18.8 days).
The month with the least rainy days is November (8 days).

Average snowfall in December
Bloomville, SC

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

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Bloomville, SC

Average snowfall days in December - Bloomville, SC
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.6 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
Bloomville, SC

Average daylight in December / Average sunshine in December - Bloomville, SC
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
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
Bloomville, SC

Average sunshine days in December - Bloomville, SC
  • Average sunshine days in December: 18.8 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (9.2 days).

Average UV index in December
Bloomville, SC

Average UV index in December - Bloomville, SC
  • Average UV index in December: 3

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in December
Bloomville, SC

Average cloud cover in December - Bloomville, SC
  • Average cloud cover in December: 40

The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in December
Bloomville, SC

Average visibility in December - Bloomville, 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).

Bloomville, South Carolina, USA

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