Frost dates in Irmo, SC

The average last spring frost in Irmo is around April 13 and the first fall frost is around October 27. That gives Irmo an average growing season of about 197 days.

Last spring frost

Early (10% chance after)April 4
Average (50%)April 13
Late (90%)April 26

First fall frost

Early (10%)October 17
Average (50%)October 27
Late (90% chance before)November 6

See the Irmo planting calendar →