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 »
  The month of January sees the average lowest temperatures in Columbia reaching 52.9°F (11.6°C) at the peak and 37.9°F (3.3°C) at the low. January, July and November, with an average relative humidity of 69%, are the least humid months in Columbia, South Carolina.
• Charleston - January »
  The month with the least rainfall in Charleston is January, when the rain falls for 9.8 days and typically collects 1.42" (36mm) of precipitation. January, on average, is the coldest month in Charleston registering a high temperature 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. January is the month when North Charleston sees the lowest average temperatures, with a high of 56.8°F (13.8°C) and a low of 42.8°F (6°C).
• Mount Pleasant - January »
  January is the month when Mount Pleasant sees the lowest average temperatures, with a high of 57.2°F (14°C) and a low of 45.1°F (7.3°C). Known for its cooler temperatures as the city is in the height of winter, January in Mount Pleasant reveals a unique weather profile.
• Rock Hill - January »
  In Rock Hill the month of January registers the lowest temperatures, averaging 49.6°F (9.8°C) at the peak and 34.2°F (1.2°C) at the lowest. The month of January sees the average lowest temperatures in Rock Hill reaching 49.6°F (9.8°C) at the peak and 34.2°F (1.2°C) at the low.
• Greenville - January »
  In Greenville during January, snow falls for 1.4 days and regularly aggregates up to 0.94" (24mm) of snow. In Greenville during January, the rain falls for 11.8 days and regularly aggregates up to 3.15" (80mm) of precipitation.
• Summerville - January »
  The months with the most snowfall in Summerville are January and February, with an average 0.04" (1mm) of accumulated snow. Summerville witnesses the coldest weather in January, with temperatures averaging a high of 56.8°F (13.8°C) and a low of 40.1°F (4.5°C).
• Goose Creek - January »
  In Goose Creek in January, snow falls for 0.3 days, with typically accumulated 0.08" (2mm) of snow. January, known as the coldest month in Goose Creek, South Carolina, heralds the New Year with chilly weather conditions.
• Sumter - January »
  The months with the lowest UV index in Sumter, South Carolina, are January, February and December, with an average maximum UV index of 3. On the first day of January in Sumter sunrise is at 7:26 am and sunset at 5:23 pm.
• Hilton Head Island - January »
  The month with the least rainfall in Hilton Head Island is January, when the rain falls for 8.3 days and typically collects 1.02" (26mm) of precipitation. With an average relative humidity of 72%, January is the least humid month in Hilton Head Island, South Carolina.
• 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. In Florence in January, snow falls for 0.8 days, with typically accumulated 0.43" (11mm) of snow.
• Spartanburg - January »
  In Spartanburg in January, snow falls for 1.1 days, with typically accumulated 1.18" (30mm) of snow. In Spartanburg, South Carolina, during January, the rain falls for 9.9 days and regularly aggregates up to 2.56" (65mm) of precipitation.