Frost dates in Sumter, SC

The average last spring frost in Sumter is around March 23 and the first fall frost is around November 9. That gives Sumter an average growing season of about 231 days.

Last spring frost

Early (10% chance after)March 1
Average (50%)March 23
Late (90%)April 12

First fall frost

Early (10%)October 23
Average (50%)November 9
Late (90% chance before)November 25

See the Sumter planting calendar →