December weather forecast
Keitts Crossroads, SC

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Weather in December

The first month of the winter, December, is also a fresh month in Keitts Crossroads, South Carolina, with an average temperature ranging between min 39.7°F (4.3°C) and max 54.9°F (12.7°C).

Temperature

In December, the average high-temperature marginally decreases from a comfortable 61.7°F (16.5°C) in November to a fresh 54.9°F (12.7°C). Keitts Crossroads experiences a mean low-temperature of 39.7°F (4.3°C) during December.

Humidity

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

Rainfall

The month with the most rainfall is December, when the rain falls for 11.3 days and typically aggregates up to 3.15" (80mm) of precipitation.

Snowfall

January through March 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 1.5 snowfall days, and 1.18" (30mm) of snow is accumulated.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year in Keitts Crossroads.
On the first day of the month, sunrise is at 7:14 am and sunset at 5:16 pm. On the last day of December, sunrise is at 7:32 am and sunset at 5:26 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 5.4h of sunshine.

UV index

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 3 during December, leads to the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

The average high-temperature and low-temperature during December are 54.9°F (12.7°C) and 39.7°F (4.3°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 93.2°F (34°C).

What is the most humid month?

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

What is the average humidity in December?

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

What is the rainiest month in Keitts Crossroads?

December is the month with the most rainfall in Keitts Crossroads. Rain falls for 11.3 days and accumulates 3.15" (80mm) of precipitation.

How many days does it rain in December?

In December, the rain falls for 11.3 days. Throughout December, 3.15" (80mm) of precipitation is accumulated.

When does it start to snow?

December is the first month it typically snows in Keitts Crossroads. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Keitts Crossroads have in December?

The average day length in December is 9h and 55min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:26 pm EST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 5.4h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 5.4h.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Keitts Crossroads, SC

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

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in December: 39.7°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).

Average pressure in December
Keitts Crossroads, SC

Average pressure in December - Keitts Crossroads, 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).

Average wind speed in December
Keitts Crossroads, SC

Average wind speed in December - Keitts Crossroads, SC
  • Average wind speed in December: 6.9mph

The windiest months (with the highest average wind speed) are February and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in December
Keitts Crossroads, SC

Average humidity in December - Keitts Crossroads, 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%).

Average rainfall in December
Keitts Crossroads, SC

Average rainfall in December - Keitts Crossroads, SC
  • Average rainfall in December: 3.15"

The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in December
Keitts Crossroads, SC

Average rainfall days in December - Keitts Crossroads, SC
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (8.1 days).

Average snowfall in December
Keitts Crossroads, SC

Average snowfall in December - Keitts Crossroads, SC
  • Average snowfall in December: 0.04"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Keitts Crossroads, SC

Average snowfall days in December - Keitts Crossroads, SC
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Keitts Crossroads, SC

Average daylight in December / Average sunshine in December - Keitts Crossroads, 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
Keitts Crossroads, SC

Average sunshine days in December - Keitts Crossroads, SC
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in December
Keitts Crossroads, SC

Average UV index in December - Keitts Crossroads, SC
  • Average UV index in December: 3

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

Average cloud cover in December
Keitts Crossroads, SC

Average cloud cover in December - Keitts Crossroads, 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).

Average visibility in December
Keitts Crossroads, SC

Average visibility in December - Keitts Crossroads, 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).

Keitts Crossroads, South Carolina, USA

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