Climateby Month

South Carolina climate by month

5 cities · NOAA 1991-2020 normals

January highs across South Carolina range from 56°F in Myrtle Beach to 60°F in Hilton Head Island; July highs from 87°F in Myrtle Beach to 96°F in Columbia. The most common best months across these cities are March, April, November.

South Carolina weather month by month

Average of the 5 South Carolina cities on this site, computed from NOAA's unrounded values (so it can differ by a degree from averaging the rounded city figures); individual cities differ, sometimes a lot.

40°50°60°70°80°90° January: normal high 58°F (14°C), low 40°F (4°C) 58° 40° February: normal high 61°F (16°C), low 42°F (6°C) March: normal high 67°F (19°C), low 48°F (9°C) April: normal high 75°F (24°C), low 56°F (13°C) May: normal high 82°F (28°C), low 64°F (18°C) June: normal high 87°F (31°C), low 71°F (22°C) July: normal high 90°F (32°C), low 74°F (23°C) 90° 74° August: normal high 89°F (32°C), low 74°F (23°C) September: normal high 85°F (29°C), low 69°F (21°C) October: normal high 77°F (25°C), low 59°F (15°C) November: normal high 68°F (20°C), low 48°F (9°C) December: normal high 61°F (16°C), low 42°F (6°C) JFMAMJJASOND
MonthHighLowWet daysSnow
January58°F40°F90.3 in
February61°F42°F90.2 in
March67°F48°F80.03 in
April75°F56°F80.0 in
May82°F64°F80.0 in
June87°F71°F110.0 in
July90°F74°F120.0 in
August89°F74°F120.0 in
September85°F69°F90.0 in
October77°F59°F70.0 in
November68°F48°F70.0 in
December61°F42°F90.03 in

Regional differences

Warmest and coolest South Carolina city each month

MonthWarmestCoolestBest month for
January Hilton Head Island 60°F Myrtle Beach 56°F –
February Columbia 64°F Myrtle Beach 58°F –
March Columbia 72°F Myrtle Beach 64°F 2 cities
April Columbia 81°F Myrtle Beach 72°F 3 cities
May Columbia 87°F Myrtle Beach 79°F –
June Columbia 93°F North Charleston 84°F 1 city
July Columbia 96°F Myrtle Beach 87°F –
August Columbia 94°F North Charleston 86°F –
September Columbia 89°F North Charleston 83°F 1 city
October Columbia 80°F North Charleston 76°F –
November Hilton Head Island 69°F Myrtle Beach 66°F 1 city
December Hilton Head Island 63°F Myrtle Beach 59°F –

By normal daily high. "Best month for": how many of the 5 cities have it among their best months by our comfort score.

Frost and humidity across South Carolina

All South Carolina cities

CityJan highJul highWet days/yrSnow/yrBest months
Charleston 58°F88°F 1020.3 in Apr
Columbia 60°F96°F 1091.2 in Mar, Nov
Hilton Head Island 60°F92°F 118– Mar, Apr
Myrtle Beach 56°F87°F 103– Jun, Sep
North Charleston 58°F88°F 1140.3 in Apr

Frost dates for South Carolina