December weather forecast
Broadmouth, SC

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Weather in December

The first month of the winter, December, is still a cool month in Broadmouth, South Carolina, with an average temperature fluctuating between 38.8°F (3.8°C) and 53.8°F (12.1°C).

Temperature

December is marked by a subtle drop in average high-temperatures, transitioning from a moderate 60.4°F (15.8°C) in November to a cool 53.8°F (12.1°C). Broadmouth reports a consistent average low-temperature of 38.8°F (3.8°C) throughout December nights.

Humidity

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

Rainfall

The month with the most rainfall is December, when the rain falls for 11.9 days and typically aggregates up to 4.09" (104mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. The month with the most snowfall in Broadmouth is December, when snow falls for 0.5 days and typically aggregates up to 1.14" (29mm) of snow.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year in Broadmouth, South Carolina.
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, sunrise is at 7:35 am and sunset at 5:29 pm EST.

Sunshine

With an average of 5.2h of sunshine, December has the least sunshine of the year in Broadmouth.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: An average maximum UV index of 2 in December leads to these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

What are December temperatures in Broadmouth?

The high-temperature, in December, in Broadmouth, records 53.8°F (12.1°C), while the low-temperature is 38.8°F (3.8°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 89.6°F (32°C).

What is the most humid month in Broadmouth?

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

What is the average humidity in December in Broadmouth?

In Broadmouth, South Carolina, the average relative humidity in December is 77%.

What is the rainiest month in Broadmouth?

The month with the most rainfall in Broadmouth is December, when the rain falls for 11.9 days and typically aggregates up to 4.09" (104mm) of precipitation.

How many days does it rain in December in Broadmouth?

In Broadmouth, in December, it is raining for 11.9 days, with typically 4.09" (104mm) of accumulated precipitation.

What is the snowiest month in Broadmouth?

December is the month with the most snowfall. Snow falls for 0.5 days and accumulates 1.14" (29mm) of snow.

How much does it snow in Broadmouth in December?

In Broadmouth, South Carolina, during December, snow falls for 0.5 days and regularly aggregates up to 1.14" (29mm) of snow.

What is the month with the shortest days in Broadmouth?

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

How many hours of daylight does Broadmouth have in December?

In December, the average day length in Broadmouth, South Carolina, is 9h and 54min.

When are sunrise and sunset in December in Broadmouth?

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, in Broadmouth, South Carolina, sunrise is at 7:35 am and sunset at 5:29 pm EST.

What is the month with the least sunshine in Broadmouth?

December has the least sunshine of the year in Broadmouth, with an average of 5.2h of sunshine.

How long on average sun shines in December in Broadmouth?

In December, the average sunshine duration is 5.2h.

When is the lowest UV index in Broadmouth?

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

What is the UV index reading in December in Broadmouth?

In December, the average daily maximum UV index in Broadmouth is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Broadmouth, SC

Average temperature in December - Broadmouth, SC
  • Average high temperature in December: 53.8°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in December: 38.8°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

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Average pressure in December
Broadmouth, SC

Average pressure in December - Broadmouth, 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 (29.98"Hg).

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Average wind speed in December
Broadmouth, SC

Average wind speed in December - Broadmouth, SC
  • Average wind speed in December: 6.7mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in December
Broadmouth, SC

Average humidity in December - Broadmouth, 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 (70%).

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Average rainfall in December
Broadmouth, SC

Average rainfall in December - Broadmouth, SC
  • Average rainfall in December: 4.09"

The wettest month (with the highest rainfall) is December (4.09").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in December
Broadmouth, SC

Average rainfall days in December - Broadmouth, SC
  • Average rainfall days in December: 11.9 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is October (8.8 days).

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Average snowfall in December
Broadmouth, SC

Average snowfall in December - Broadmouth, SC
  • Average snowfall in December: 1.14"

The month with the highest snowfall is December (1.14").
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
Broadmouth, SC

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

The month with the highest number of snowfall days is January (1.3 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
Broadmouth, SC

Average daylight in December / Average sunshine in December - Broadmouth, 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 1min

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 12min).

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Average sunshine days in December
Broadmouth, SC

Average sunshine days in December - Broadmouth, SC
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in December
Broadmouth, SC

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

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in December
Broadmouth, SC

Average cloud cover in December - Broadmouth, SC
  • Average cloud cover in December: 45

The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 30).

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Average visibility in December
Broadmouth, SC

Average visibility in December - Broadmouth, SC
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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Broadmouth, South Carolina, USA

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