January is the coldest month of the year in South Carolina, with the average low temperatures ranging from 26°F (-3.3°C) in the mountains to 40°F (4.4°C) in the plains. Hilton Head Island on the Atlantic Coast averages between 40°F (4.4°C) to 60°F (15.6°C), while Caesars Head State Park in the Uplands region is between 26°F (-3.3°C) to 44°F (6.7°C). The days are mild with moderate sunshine of 7 hours and usually remain in the 44°F (6.7°C) to 60°F (15.6°C) zone. Snowfall is light between 1" (25mm) to 3" (76mm) and increases in the Blue Mountains. Sledding and tubing are popular on the high mountain slopes. Ice and sleet are common, with precipitation in the 4" (102mm) to 5" (127mm) range. Winter is the time for tastiest craft beers and Beer Festivals. State Parks offer plenty of hikes and cozy cabins for relaxation. Pack warm clothes for the evenings even though the days seem to be mild. Watch out for winter storms that can close highways and affect power lines in January in South Carolina.