January weather forecast
South Carolina, USA

January in South Carolina is one of the colder months, with a notable variation in weather patterns across different regions of the state. Along the coast, temperatures range from a mild 38°F (3.3°C) to 62°F (16.7°C). In contrast, the Midlands see temperatures frequently dip below freezing, while the Upstate area can experience even chillier conditions.

In cities like Columbia, which is part of the Midlands, January nights can be particularly cold, often reaching freezing points. The mountainous regions, including areas near Sassafras Mountain, may witness temperatures dropping substantially below freezing, making it one of the coldest spots in the state during this month.

January is distinct for having one of the lowest recorded temperatures in the state's history, with a record -19°F (-28.3°C) at Caesars Head on January 21, 1985.

Snowfall in January is rare along the coast, with the region receiving little to no measurable snow. However, the interior parts can get up to 12" (305mm) of snow, with northwestern mountains receiving even more considerable amounts. This month sees more icy rain and sleet, especially in the Midlands and Upstate, compared to the snowfall of later winter months like February.

When comparing January to its neighboring months, December and February, January generally stands out as one of the coldest, especially in the Midlands and Upstate areas. While February can still witness cold spells, January often registers as the month with the most consistently cold temperatures throughout South Carolina.

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• Columbia - January »
  January, July and November, with an average relative humidity of 69%, are the least humid months in Columbia, South Carolina. In Columbia in January, during 9.9 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.
• Charleston - January »
  The month with the most snowfall in Charleston is January, when snow falls for 0.4 days and typically aggregates up to 0.12" (3mm) of snow. In Charleston, January is the month with the lowest recorded average temperatures, measuring a high of 57°F (13.9°C) and a low of 44.4°F (6.9°C).
• North Charleston - January »
  The month with the least rainfall in North Charleston is January, when the rain falls for 8.8 days and typically collects 0.67" (17mm) of precipitation. In North Charleston in January, during 8.8 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.
• Mount Pleasant - January »
  Known for its cooler temperatures as the city is in the height of winter, January in Mount Pleasant reveals a unique weather profile. January is the month with the lowest UV index in Mount Pleasant, South Carolina, with an average maximum UV index of 3.
• Rock Hill - January »
  In Rock Hill, South Carolina, in January, it is raining for 10.8 days, with typically 2.76" (70mm) of accumulated precipitation. The lowest temperatures in Rock Hill are recorded in January, with averages reaching a high of 49.6°F (9.8°C) and a low of 34.2°F (1.2°C).
• Greenville - January »
  In Greenville in January, snow falls for 1.4 days, with typically accumulated 0.94" (24mm) of snow. In Greenville, South Carolina, in January, during 11.8 rainfall days, 3.15" (80mm) of precipitation is typically accumulated.
• Summerville - January »
  The month with the least rainfall in Summerville, South Carolina, is January, when the rain falls for 5.7 days and typically collects 0.28" (7mm) of precipitation. January is the coldest month in Summerville with the temperature often reaching an average high of 56.8°F (13.8°C) and an average low of 40.1°F (4.5°C).
• Goose Creek - January »
  With average temperatures fluctuating between a high of 56.8°F (13.8°C) and a low of 41.5°F (5.3°C), January stands out as the coldest month in Goose Creek, South Carolina. January, known as the coldest month in Goose Creek, South Carolina, heralds the New Year with chilly weather conditions.
• Sumter - January »
  The month with the least rainfall in Sumter, South Carolina, is January, when the rain falls for 10.5 days and typically collects 1.89" (48mm) of precipitation. In Sumter in January, during 10.5 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.
• Hilton Head Island - January »
  January is the least humid month in Hilton Head Island with an average relative humidity of 72%. January is the month with the lowest UV index in Hilton Head Island with an average maximum UV index of 3.
• Florence - January »
  The month with the least rainfall in Florence is January, when the rain falls for 10.8 days and typically collects 1.65" (42mm) of precipitation. The month with the least rainfall in Florence is January, when the rain falls for 10.8 days and typically collects 1.65" (42mm) of precipitation.
• Spartanburg - January »
  In Spartanburg, in January, snow falls for 1.1 days, with typically accumulated 1.18" (30mm) of snow. In Spartanburg, in January, during 1.1 snowfall days, 1.18" (30mm) of snow is typically accumulated.