The Congaree Watershed (HUC 03050110) covers approximately 2,967 square miles in South Carolina, USA. The hydrology of the watershed is characterized by several large rivers, including the Congaree and Saluda, and numerous smaller streams and creeks. The area receives an average of 44 inches of precipitation annually, with the heaviest rainfall occurring between July and September. Snowfall is rare in the region, with an average of only 1 inch per year. The surface water in the watershed is used for various purposes, including hydroelectric power generation and municipal water supply. The reservoirs in the area contain primarily sediment, nitrogen, and phosphorus. The climate of the watershed is characterized by hot, humid summers and mild winters with occasional ice storms. Climate data shows a trend towards increasing temperatures and more frequent extreme weather events.