December weather forecast
Colonial Hills, SC

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Weather in December

December, the first month of the winter in Colonial Hills, is also a fresh month, with an average temperature ranging between max 53.8°F (12.1°C) and min 38.5°F (3.6°C).

Temperature

The transition to December results in a modest reduction in average high-temperature, moving from a mild 60.6°F (15.9°C) in November to a fresh 53.8°F (12.1°C). Colonial Hills experiences an average nighttime temperature of 38.5°F (3.6°C) in the month of December.

Humidity

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

Rainfall

In Colonial Hills, in December, it is raining for 10.5 days, with typically 1.69" (43mm) of accumulated precipitation. In Colonial Hills, during the entire year, the rain falls for 136.3 days and collects up to 19.02" (483mm) of precipitation.

Snowfall

Months with snowfall in Colonial Hills are January through March and December. December is the first month it typically snows in Colonial Hills. Throughout December, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, there are 2.3 snowfall days, and 0.79" (20mm) of snow is accumulated.

Daylight

The month with the shortest days in Colonial Hills, South Carolina, is December, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:19 am and sunset at 5:20 pm. On the last day of December, sunrise is at 7:37 am and sunset at 5:30 pm EST.

Sunshine

With an average of 5.1h of sunshine, December has the least sunshine of the year in Colonial Hills.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Colonial Hills. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

What are December temperatures in Colonial Hills?

In Colonial Hills, in December, the average high-temperature is 53.8°F (12.1°C), and the average low-temperature is 38.5°F (3.6°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 computed to be 89.6°F (32°C).

What is the most humid month in Colonial Hills?

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

What is the average humidity in December in Colonial Hills?

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

How many days does it rain in December in Colonial Hills?

In December, in Colonial Hills, the rain falls for 10.5 days. Throughout December, 1.69" (43mm) of precipitation is accumulated.

When does it start snowing in Colonial Hills?

December is the first month it typically snows in Colonial Hills. Throughout December, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow.

What is the month with the shortest days in Colonial Hills?

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

How many hours of daylight does Colonial Hills have in December?

In Colonial Hills, South Carolina, the average day length in December is 9h and 53min.

When is the sunrise / sunset in December in Colonial Hills?

In December, on the first day of the month, sunrise is at 7:19 am and sunset at 5:20 pm. On the last day of the month, in Colonial Hills, South Carolina, sunrise is at 7:37 am and sunset at 5:30 pm EST.

What is the month with the least sunshine in Colonial Hills?

December has the least sunshine of the year in Colonial Hills, South Carolina, with an average of 5.1h of sunshine.

How long on average sun shines in December in Colonial Hills?

In Colonial Hills, the average sunshine duration in December is 5.1h.

What are the months with the lowest UV index in Colonial Hills?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Colonial Hills, South Carolina.

What is the UV index reading in December in Colonial Hills?

The average daily maximum UV index in December in Colonial Hills, South Carolina, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Colonial Hills, SC

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

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.2°F).

  • Average low temperature in December: 38.5°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

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Average pressure in December
Colonial Hills, SC

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

The months with the highest atmospheric pressure are January and 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
Colonial Hills, SC

Average wind speed in December - Colonial Hills, SC
  • Average wind speed in December: 6.4mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in December
Colonial Hills, SC

Average humidity in December - Colonial Hills, 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
Colonial Hills, SC

Average rainfall in December - Colonial Hills, SC
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is September (0.79").

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Average rainfall days in December
Colonial Hills, SC

Average rainfall days in December - Colonial Hills, SC
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is October (7.2 days).

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Average snowfall in December
Colonial Hills, SC

Average snowfall in December - Colonial Hills, SC
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Colonial Hills, SC

Average snowfall days in December - Colonial Hills, SC
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Colonial Hills, SC

Average daylight in December / Average sunshine in December - Colonial Hills, 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 54min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in December
Colonial Hills, SC

Average sunshine days in December - Colonial Hills, SC
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (14.3 days).

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Average UV index in December
Colonial Hills, SC

Average UV index in December - Colonial Hills, 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
Colonial Hills, SC

Average cloud cover in December - Colonial Hills, SC
  • Average cloud cover in December: 44

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).

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Average visibility in December
Colonial Hills, SC

Average visibility in December - Colonial Hills, 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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Colonial Hills, South Carolina, USA

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