December weather forecast
Columbia, SC

The Us State House of South Carolina, in Columbia, with the Wade Hampton Statue
The Us State House of South Carolina, in Columbia, with the Wade Hampton Statue

Weather in December

The first month of the winter, December, is also a moderate month in Columbia, South Carolina, with an average temperature ranging between max 56.5°F (13.6°C) and min 42.1°F (5.6°C).

Temperature

In December, the average high-temperature slightly decreases from an enjoyable 62.6°F (17°C) in November to a moderate 56.5°F (13.6°C). The average low-temperature, in Columbia, South Carolina, is 42.1°F (5.6°C).

Humidity

December is the most humid month, with an average relative humidity of 74%.

Rainfall

The month with the most rainfall is December, when the rain falls for 10.8 days and typically aggregates up to 2.91" (74mm) of precipitation.

Snowfall

Months with snowfall are January, February and December. 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 0.7 snowfall days, and 0.63" (16mm) of snow is accumulated.

Daylight

With an average of 9h and 56min of daylight, December has the shortest days of the year in Columbia, South Carolina.
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 Columbia, sunrise is at 7:29 am and sunset at 5:24 pm EST.

Sunshine

December has the least sunshine of the year in Columbia, with an average of 5.3h 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 estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 in December interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Columbia?

The average high-temperature, in December, in Columbia, is 56.5°F (13.6°C), while the average low-temperature is 42.1°F (5.6°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is appraised at 93.2°F (34°C).

What is the most humid month in Columbia?

With an average relative humidity of 74%, December is the most humid month in Columbia.

What is the average humidity in December in Columbia?

In December, the average relative humidity is 74%.

What is the wettest month in Columbia?

The month with the most rainfall in Columbia, South Carolina, is December, when the rain falls for 10.8 days and typically aggregates up to 2.91" (74mm) of precipitation.

How much does it rain in Columbia in December?

In Columbia, South Carolina, in December, it is raining for 10.8 days, with typically 2.91" (74mm) of accumulated precipitation.

When does it start snowing in Columbia?

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

What is the month with the shortest days in Columbia?

With an average of 9h and 56min of daylight, December has the shortest days of the year.

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

In Columbia, the average day length in December is 9h and 56min.

When are sunrise and sunset in December in Columbia?

On the first day of December in Columbia, South Carolina, 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 5:24 pm EST.

What is the month with the least sunshine in Columbia?

December has the least sunshine of the year in Columbia, South Carolina, with an average of 5.3h of sunshine.

How many hours of sunshine does Columbia have in December?

In December, the average sunshine duration in Columbia, South Carolina, is 5.3h.

When is the lowest UV index in Columbia?

The months with the lowest UV index in Columbia are January, February and December, with an average maximum UV index of 3.

What is the UV index reading in December in Columbia?

In Columbia, South Carolina, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Columbia, SC

Average temperature in December - Columbia, SC
  • Average high temperature in December: 56.5°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 (52.9°F).

  • Average low temperature in December: 42.1°F

The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

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Average pressure in December
Columbia, SC

Average pressure in December - Columbia, 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
Columbia, SC

Average wind speed in December - Columbia, SC
  • Average wind speed in December: 7.3mph

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

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Average humidity in December
Columbia, SC

Average humidity in December - Columbia, SC
  • Average humidity in December: 74%

The month with the highest relative humidity is December (74%).
The months with the lowest relative humidity are January, July and November (69%).

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Average rainfall in December
Columbia, SC

Average rainfall in December - Columbia, SC
  • Average rainfall in December: 2.91"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.46").

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Average rainfall days in December
Columbia, SC

Average rainfall days in December - Columbia, SC
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is October (7.3 days).

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Average snowfall in December
Columbia, SC

Average snowfall in December - Columbia, SC
  • Average snowfall in December: 0.04"

The month with the highest snowfall is February (0.47").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Columbia, SC

Average snowfall days in December - Columbia, SC
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is February (0.3 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
Columbia, SC

Average daylight in December / Average sunshine in December - Columbia, SC
  • Average daylight in December: 9h and 56min

The month with the longest days is June (Average daylight: 14h and 23min).
The month with the shortest days is December (Average daylight: 9h and 56min).

  • Average sunshine in December: 5h and 18min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in December
Columbia, SC

Average sunshine days in December - Columbia, SC
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is October (22.7 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index in December
Columbia, SC

Average UV index in December - Columbia, 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).

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Average cloud cover in December
Columbia, SC

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

The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and October (Cloud cover 29).

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Average visibility in December
Columbia, SC

Average visibility in December - Columbia, 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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