Average Temperatures and Rainfall for South Carolina

Average annual temperatures for South Carolina (18°C/64°F) are slightly above the average for United States (13°C/55°F).

Average annual rainfall for South Carolina (1,365mm/54 inches) is significantly above the average for United States (1,039mm/41 inches).

What is the warmest or hottest month in South Carolina?

July is the hottest or warmest month in South Carolina, with an average maximum temperate of 33°C/91°F.

What is the coldest or coolest month in South Carolina?

January is the coolest or coldest month in South Carolina, with an average minimum temperate of 2°C/36°F.

What is the most rainy or wettest month in South Carolina?

July is the wettest or most rainy month in South Carolina, with an average rainfall of 149mm/6 inches.

What is the least rainy or driest month in South Carolina?

November is the driest or least rainy month in South Carolina, with an average rainfall of 89mm/4 inches.

What is the warmest or hottest place in South Carolina?

Charleston is the hottest or warmest place in South Carolina, with an average maximum temperate of 20°C/68°F.

What is the coldest place in South Carolina?

Greenville is the coldest place in South Carolina, with an average maximum temperate of 17°C/63°F.

What is the most rainy or wettest place in South Carolina?

Charleston is the most rainy or wettest place in South Carolina, with an average annual rainfall of 1,521mm/60 inches.

What is the least rainy or driest place in South Carolina?

Rock Hill is the least rainy or driest place in South Carolina, with an average annual rainfall of 1,292mm/51 inches.

Average Monthly Temperatures
Average Maximum Temperature Average Minimum Temperature
Average Monthly Rainfall
PlaceMin TempMax TempAvg TempRainfall
Charleston 14 25 20 1,521
Columbia 13 25 19 1,330
Greenville 11 23 17 1,512
Mount Pleasant 14 25 20 1,521
North Charleston 14 25 20 1,521
Rock Hill 11 23 17 1,292