December weather forecast and climate
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

December, the first month of the winter, in Columbia, is still a mild month, with average temperature fluctuating between 42.1°F (5.6°C) and 56.5°F (13.6°C).

Temperature

In Columbia, the average high-temperature marginally drops, 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, is 42.1°F (5.6°C).

Humidity

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

Rainfall

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

Snowfall

Months with snowfall in Columbia 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. In Columbia, during the entire year, snow falls for 0.7 days, and aggregates up to 0.63" (16mm) of snow.

Daylight

With an average of 9.9h of daylight, December has the shortest days of the year.

Sunshine

The month with the least sunshine is December, with an average of 5.3h of sunshine.

UV index

Months with the lowest UV index in Columbia are January, February and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sun damage is advised. 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.
[Resources]

FAQ

What is the temperature in December in Columbia?

In Columbia, in December, the average high-temperature is 56.5°F (13.6°C), and the average low-temperature is 42.1°F (5.6°C).

What is the most humid month in Columbia?

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

What is the average humidity in December in Columbia?

In December, the average relative humidity is 74%.

How many days does it rain in December in Columbia?

In Columbia, South Carolina, in December, during 10.8 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

What is the rainiest month in Columbia?

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

When does it start to snow in Columbia?

December is the first month it typically snows in Columbia. 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?

The month with the shortest days in Columbia, South Carolina, is December, with an average of 9.9h of daylight.

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

In December, the average length of the day in Columbia, South Carolina, is 9.9h.

What is the month with the least sunshine in Columbia?

The month with the least sunshine is December, with an average of 5.3h of sunshine.

How many hours of sunshine does Columbia have in December?

The average sunshine in December is 5.3h.

What are the months with the lowest UV index in Columbia?

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

What is the UV index intensity in December in Columbia?

The average daily maximum UV index in December in Columbia is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

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).

[Resources]

Average pressure in December
Columbia, SC

Average pressure in December - Columbia, SC
  • Average pressure in December: 30.14"

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

[Resources]

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).

[Resources]

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%).
Months with the lowest relative humidity are January, July and November (69%).

[Resources]

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").

[Resources]

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).

[Resources]

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").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

[Resources]

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).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

[Resources]

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

Average daylight in December / Average sunshine in December - Columbia, SC
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 5.3h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.3h).

[Resources]

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).

[Resources]

Average UV index in December
Columbia, SC

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

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

[Resources]

Average cloud cover in December
Columbia, SC

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

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

[Resources]

Average visibility in December
Columbia, SC

Average visibility in December - Columbia, SC
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]