North Carolina Geography & Climate

North Carolina runs about 500 miles from the Atlantic to the Tennessee line, and crosses three distinct landscapes doing it.

The Outer Banks are barrier islands — narrow, sandy, and genuinely mobile, separated from the mainland by shallow sounds rather than open sea. Behind them the coastal plain is flat, wet and farmed, cut by slow rivers and swamp.

The Piedmont rises gradually inland: rolling clay country, red where it is exposed, holding most of the state's people and industry.

In the west the land climbs into the Blue Ridge and the Great Smokies, the oldest mountains in North America and among the most biologically diverse temperate forest anywhere. Mount Mitchell reaches 6,684 feet, the highest peak in the eastern United States.

Most of North Carolina is humid subtropical: hot, humid summers and mild winters, with the coast moderated by the ocean and the Piedmont running a few degrees hotter in July.

The mountains are a different climate entirely. Summers are cool enough to be a refuge from the lowland heat, and winters bring genuine snow above about 3,000 feet.

Hurricane season runs from June to November, with the greatest risk in August and September. The Outer Banks are the most exposed part of the state, and a storm can close the ferry routes and trigger evacuation orders at short notice.

Spring and autumn are the settled seasons, and autumn in particular is dependable — clear, dry weeks through October.