December weather forecast
Winnsboro, SC

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Weather in December

December, the first month of the winter in Winnsboro, is also a fresh month, with an average temperature varying between 54.9°F (12.7°C) and 40.6°F (4.8°C).

Temperature

As December commences, the average high-temperature subtly reduces, transitioning from a comfortable 61.7°F (16.5°C) in November to a fresh 54.9°F (12.7°C). During the nights in December, Winnsboro experiences a consistent average temperature of 40.6°F (4.8°C).

Humidity

May and December, with an average relative humidity of 75%, are the most humid months in Winnsboro.

Rainfall

December is the month with the most rainfall. Rain falls for 12 days and accumulates 3.5" (89mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Winnsboro, in December, during 0.2 snowfall days, 0.08" (2mm) of snow is typically accumulated. In Winnsboro, during the entire year, snow falls for 2.5 days and aggregates up to 1.34" (34mm) of snow.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year in Winnsboro, South Carolina.
On the first day of the month, sunrise is at 7:13 am and sunset at 5:14 pm. On the last day of December, in Winnsboro, South Carolina, sunrise is at 7:30 am and sunset at 5:24 pm EST.

Sunshine

With an average of 5.4h of sunshine, December has the least sunshine of the year in Winnsboro.

UV index

The average daily maximum UV index in December in Winnsboro is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 3 in December interprets into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

What are December temperatures in Winnsboro?

The high-temperature in Winnsboro, South Carolina, during December is 54.9°F (12.7°C) and the low-temperature is 40.6°F (4.8°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 91.4°F (33°C).

What are the most humid months in Winnsboro?

May and December, with an average relative humidity of 75%, are most humid months in Winnsboro.

What is the average humidity in December in Winnsboro?

In December, the average relative humidity in Winnsboro, South Carolina, is 75%.

What is the wettest month in Winnsboro?

December is the month with the most rainfall in Winnsboro. Rain falls for 12 days and accumulates 3.5" (89mm) of precipitation.

How many days does it rain in December in Winnsboro?

In Winnsboro, South Carolina, in December, during 12 rainfall days, 3.5" (89mm) of precipitation is typically accumulated.

How much does it snow in Winnsboro in December?

In Winnsboro, South Carolina, in December, snow falls for 0.2 days, with typically accumulated 0.08" (2mm) of snow.

What is the month with the shortest days in Winnsboro?

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

How many hours of daylight does Winnsboro have in December?

The average day length in December in Winnsboro, South Carolina, is 9h and 54min.

What time are sunrise and sunset in December in Winnsboro?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:24 pm EST.

What is the month with the least sunshine in Winnsboro?

With an average of 5.4h of sunshine, December has the least sunshine of the year in Winnsboro.

How many hours of sunshine does Winnsboro have in December?

In December, the average sunshine duration is 5.4h.

How high is the UV index in December in Winnsboro?

In December, the average daily maximum UV index in Winnsboro is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe 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
Winnsboro, SC

Average temperature in December - Winnsboro, SC
  • Average high temperature in December: 54.9°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in December: 40.6°F

The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

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Average pressure in December
Winnsboro, SC

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

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

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Average wind speed in December
Winnsboro, SC

Average wind speed in December - Winnsboro, SC
  • Average wind speed in December: 7mph

The windiest months (with the highest average wind speed) are February and April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in December
Winnsboro, SC

Average humidity in December - Winnsboro, SC
  • Average humidity in December: 75%

The months with the highest relative humidity are May and December (75%).
The months with the lowest relative humidity are June, July and November (71%).

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Average rainfall in December
Winnsboro, SC

Average rainfall in December - Winnsboro, SC
  • Average rainfall in December: 3.5"

The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in December
Winnsboro, SC

Average rainfall days in December - Winnsboro, SC
  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is July (18 days).
The months with the least rainy days are October and November (9 days).

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Average snowfall in December
Winnsboro, SC

Average snowfall in December - Winnsboro, SC
  • Average snowfall in December: 0.08"

The month with the highest snowfall is February (0.83").
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
Winnsboro, SC

Average snowfall days in December - Winnsboro, SC
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is February (1.2 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
Winnsboro, SC

Average daylight in December / Average sunshine in December - Winnsboro, 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 2min

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 24min).

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Average sunshine days in December
Winnsboro, SC

Average sunshine days in December - Winnsboro, SC
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (10.5 days).

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Average UV index in December
Winnsboro, SC

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

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

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Average cloud cover in December
Winnsboro, SC

Average cloud cover in December - Winnsboro, SC
  • Average cloud cover in December: 42

The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in December
Winnsboro, SC

Average visibility in December - Winnsboro, 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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Winnsboro, South Carolina, USA

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