December weather forecast
South Carolina, USA

December in South Carolina welcomes winter's onset, characterized by colder temperatures and occasional frosty mornings. Coastal regions, including areas like Myrtle Beach, witness temperatures fluctuating between 38°F (3.3°C) to 60°F (15.6°C). Days are moderately cool, but as darkness descends, the chill intensifies, hinting at the deeper cold of mid-winter.

The Midlands, where cities such as Columbia lie, experience the fresh chill of winter more acutely. The warmth of previous months becomes a nostalgic memory as residents navigate colder days and even frostier nights. The Upstate, nestled near the Blue Ridge Mountains, feels winter's touch most distinctly. This region, especially at higher elevations, sees the occasional snowfall, transforming the landscape into a serene white tableau, albeit briefly.

December is marked by sporadic rain showers, but they are typically light and infrequent. Snow is rare along the coast, but the interior and northwestern mountains might accumulate some, particularly as the month progresses. As one would expect in winter, humidity is at its lowest, resulting in clearer air and often brilliantly blue skies on days when clouds don't dominate.

In comparison to November, December's chill becomes more established, solidifying winter's grip on the state. The festive spirit of the holiday season provides a warm counterpoint to the cold outdoors. As December draws to a close, South Carolina awaits the depth of winter in the coming months, with January promising even colder conditions, particularly in the Upstate region.

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• Columbia - December »
  December has the shortest days of the year with an average of 9h and 54min of daylight. In Columbia in December, during 10.8 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.
• Charleston - December »
  The month with the shortest days in Charleston is December, with an average of 10h and 0min of daylight. The most humid month in Charleston is December, with an average relative humidity of 78%.
• North Charleston - December »
  The month with the shortest days in North Charleston is December, with an average of 10h and 0min of daylight. In North Charleston in December, it is raining for 9.5 days, with typically 2.4" (61mm) of accumulated precipitation.
• Mount Pleasant - December »
  December is the month with the most snowfall in Mount Pleasant with 0.31" (8mm) of accumulated snow. The month with the shortest days in Mount Pleasant is December, with an average of 10h and 0min of daylight.
• Rock Hill - December »
  December is the most humid month in Rock Hill with an average relative humidity of 75%. With an average of 9h and 54min of daylight, December has the shortest days of the year in Rock Hill, South Carolina.
• Greenville - December »
  The month with the most rainfall in Greenville is December, when the rain falls for 11.7 days and typically aggregates up to 4.06" (103mm) of precipitation. The month with the shortest days in Greenville is December, with an average of 9h and 54min of daylight.
• Summerville - December »
  The month with the shortest days in Summerville is December, with an average of 10h and 0min of daylight. In Summerville, South Carolina, in December, it is raining for 7.1 days, with typically 1.38" (35mm) of accumulated precipitation.
• Goose Creek - December »
  In Goose Creek, South Carolina, during December, the rain falls for 10.8 days and regularly aggregates up to 4.17" (106mm) of precipitation. In Goose Creek, during December, the rain falls for 10.8 days and regularly aggregates up to 4.17" (106mm) of precipitation.
• Sumter - December »
  The month with the most rainfall in Sumter is December, when the rain falls for 11 days and typically aggregates up to 3.58" (91mm) of precipitation. The month with the shortest days in Sumter is December, with an average of 9h and 54min of daylight.
• Hilton Head Island - December »
  With an average relative humidity of 77%, December is the most humid month in Hilton Head Island, South Carolina. In December, in Hilton Head Island the rain falls for 11.5 days.
• Florence - December »
  With an average of 9h and 54min of daylight, December has the shortest days of the year in Florence, South Carolina. In Florence, during December, snow falls for 0.1 days and regularly aggregates up to 0.24" (6mm) of snow.
• Spartanburg - December »
  With an average relative humidity of 76%, December is the most humid month in Spartanburg, South Carolina. Spartanburg's December weather features chill winds, shorter daylight hours, and a potential for snow towards the end of the month.