December weather forecast
Piedmont, SC

Weather in December

The first month of the winter, December, is also a fresh month in Piedmont, South Carolina, with an average temperature fluctuating between 52.7°F (11.5°C) and 37.8°F (3.2°C).

Temperature

In December, the average high-temperature slightly decreases from a moderate 59.9°F (15.5°C) in November to a cool 52.7°F (11.5°C). The average low-temperature, in December, is 37.8°F (3.2°C).

Humidity

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

Rainfall

December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 3.66" (93mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. December is the month with the most snowfall. Snow falls for 0.5 days and accumulates 2.01" (51mm) of snow.

Daylight

With an average of 9h and 53min of daylight, December has the shortest days of the year in Piedmont.
On the first day of the month, sunrise is at 7:18 am and sunset at 5:19 pm. On the last day of December, in Piedmont, sunrise is at 7:36 am and sunset at 5:29 pm EST.

Sunshine

The month with the least sunshine in Piedmont is December, with an average of 5.5h of sunshine.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Piedmont. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Piedmont?

In Piedmont, in December, the average high-temperature is 52.7°F (11.5°C), and the average low-temperature is 37.8°F (3.2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is appraised at 87.8°F (31°C).

What is the most humid month in Piedmont?

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

What is the average humidity in December in Piedmont?

In December, the average relative humidity in Piedmont is 77%.

What is the wettest month in Piedmont?

December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 3.66" (93mm) of precipitation.

How many days does it rain in December in Piedmont?

In Piedmont, South Carolina, in December, during 11.5 rainfall days, 3.66" (93mm) of precipitation is typically accumulated.

When does it snow the most in Piedmont?

December is the month with the most snowfall in Piedmont, South Carolina. Snow falls for 0.5 days and accumulates 2.01" (51mm) of snow.

How much does it snow in Piedmont in December?

In Piedmont, South Carolina, in December, during 0.5 snowfall days, 2.01" (51mm) of snow is typically accumulated.

What is the month with the shortest days in Piedmont?

With an average of 9h and 53min of daylight, December has the shortest days of the year in Piedmont, South Carolina.

How many hours of daylight does Piedmont have in December?

The average day length in December in Piedmont, South Carolina, is 9h and 53min.

What time are sunrise and sunset in December in Piedmont?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:29 pm EST.

What is the month with the least sunshine in Piedmont?

December has the least sunshine of the year, with an average of 5.5h of sunshine.

How long on average sun shines in December in Piedmont?

In Piedmont, South Carolina, the average sunshine duration in December is 5.5h.

What is the month with the lowest UV index in Piedmont?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Piedmont.

How high is the UV index in December in Piedmont?

In Piedmont, South Carolina, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Piedmont, SC

Average temperature in December - Piedmont, SC
  • Average high temperature in December: 52.7°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (49.3°F).

  • Average low temperature in December: 37.8°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

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Average pressure in December
Piedmont, SC

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

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in December
Piedmont, SC

Average wind speed in December - Piedmont, SC
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in December
Piedmont, SC

Average humidity in December - Piedmont, SC
  • Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in December
Piedmont, SC

Average rainfall in December - Piedmont, SC
  • Average rainfall in December: 3.66"

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.38").

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Average rainfall days in December
Piedmont, SC

Average rainfall days in December - Piedmont, SC
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is November (7.8 days).

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Average snowfall in December
Piedmont, SC

Average snowfall in December - Piedmont, SC
  • Average snowfall in December: 2.01"

The month with the highest snowfall is December (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Piedmont, SC

Average snowfall days in December - Piedmont, SC
  • Average snowfall days in December: 0.5 days

The months with the highest number of snowfall days are January and February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Piedmont, SC

Average daylight in December / Average sunshine in December - Piedmont, SC
  • Average daylight in December: 9h and 53min

The month with the longest days is June (Average daylight: 14h and 27min).
The month with the shortest days is December (Average daylight: 9h and 53min).

  • Average sunshine in December: 5h and 30min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Piedmont, SC

Average sunshine days in December - Piedmont, SC
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in December
Piedmont, SC

Average UV index in December - Piedmont, SC
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in December
Piedmont, SC

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

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in December
Piedmont, SC

Average visibility in December - Piedmont, 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).

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