Frost dates in New Windsor, MD

The average last spring frost in New Windsor is around April 29 and the first fall frost is around October 15. That gives New Windsor an average growing season of about 169 days.

Last spring frost

Early (10% chance after)April 8
Average (50%)April 29
Late (90%)May 14

First fall frost

Early (10%)September 27
Average (50%)October 15
Late (90% chance before)November 2

See the New Windsor planting calendar →