December weather forecast
Cayce, SC

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Weather in December

December rounds out the year in Cayce with the arrival of the winter season. It is one of the wetter months, recording a relatively high rainfall of 2.05" (52mm). The forecast predicts fewer daylight hours and a further reduction in the amount of sunshine. The month also sees an increase in wind speed, adding a further cold touch to the winter days. With the higher cloud cover than previous months, December embraces the winter, presenting colder and shorter days.

Temperature

The move into December indicates a slight reduction in the average high-temperature, down from November's 62.6°F (17°C) to a still refreshing 56.7°F (13.7°C). During the December nights, an average temperature of 41.9°F (5.5°C) is observed in Cayce.

Humidity

The most humid month is December, with an average relative humidity of 75%.

Rainfall

In Cayce, during December, the rain falls for 10 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Cayce, during the entire year, the rain falls for 130.3 days and collects up to 20.55" (522mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:11 am and sunset at 5:15 pm. On the last day of December, in Cayce, sunrise is at 7:29 am and sunset at 5:25 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5.4h 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 reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 3 in December transforms into the following instructions:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Cayce in December?

The high-temperature, in December, in Cayce, is 56.7°F (13.7°C), while the low-temperature averages to 41.9°F (5.5°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 93.2°F (34°C).

What is the most humid month in Cayce?

The most humid month is December, with an average relative humidity of 75%.

What is the average humidity in December in Cayce?

In Cayce, the average relative humidity in December is 75%.

How many days does it rain in December in Cayce?

In Cayce, during December, the rain falls for 10 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow in Cayce?

March through December are months without snowfall in Cayce.

Does it snow in Cayce in December?

In Cayce, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days in Cayce?

With an average of 9h and 54min of daylight, December has the shortest days of the year in Cayce, South Carolina.

What is the average length of the day in December in Cayce?

The average day length in December in Cayce, South Carolina, is 9h and 56min.

When are sunrise and sunset in December in Cayce?

On the first day of December in Cayce, sunrise is at 7:11 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:25 pm EST.

What is the month with the least sunshine in Cayce?

The month with the least sunshine in Cayce, South Carolina, is December, with an average of 5.4h of sunshine.

How many hours of sunshine does Cayce have in December?

In December, the average sunshine duration is 5.4h.

When is the lowest UV index in Cayce?

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Cayce, South Carolina.

What is the UV index reading in December in Cayce?

In Cayce, South Carolina, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes 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
Cayce, SC

Average temperature in December - Cayce, SC
  • Average high temperature in December: 56.7°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (52.9°F).

  • Average low temperature in December: 41.9°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (37.8°F).

Average pressure in December
Cayce, SC

Average pressure in December - Cayce, 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).

Average wind speed in December
Cayce, SC

Average wind speed in December - Cayce, SC
  • Average wind speed in December: 7.5mph

The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Cayce, SC

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

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is July (69%).

Average rainfall in December
Cayce, SC

Average rainfall in December - Cayce, SC
  • Average rainfall in December: 2.05"

The wettest month (with the highest rainfall) is August (2.17").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in December
Cayce, SC

Average rainfall days in December - Cayce, SC
  • Average rainfall days in December: 10 days

The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is October (6.6 days).

Average snowfall in December
Cayce, SC

Average snowfall in December - Cayce, SC
  • Average snowfall in December: 0"

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, November and December (0").

Average snowfall days in December
Cayce, SC

Average snowfall days in December - Cayce, SC
  • Average snowfall days in December: 0 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in December / Average sunshine in December - Cayce, 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).

Average sunshine days in December
Cayce, SC

Average sunshine days in December - Cayce, SC
  • Average sunshine days in December: 19.8 days

The month with the most sunshine days is October (23 days).
The month with the least sunshine days is July (13.9 days).

Average UV index in December
Cayce, SC

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

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

Average cloud cover in December
Cayce, SC

Average cloud cover in December - Cayce, SC
  • Average cloud cover in December: 41

The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 28).

Average visibility in December
Cayce, SC

Average visibility in December - Cayce, 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).

Cayce, South Carolina, USA

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