Frost dates in Hackettstown, NJ

The average last spring frost in Hackettstown is around April 17 and the first fall frost is around November 4. That gives Hackettstown an average growing season of about 201 days.

Last spring frost

Early (10% chance after)April 4
Average (50%)April 17
Late (90%)April 24

First fall frost

Early (10%)October 27
Average (50%)November 4
Late (90% chance before)November 8

See the Hackettstown planting calendar →