Frost dates in Arnold, PA

The average last spring frost in Arnold is around April 23 and the first fall frost is around October 30. That gives Arnold an average growing season of about 190 days.

Last spring frost

Early (10% chance after)April 6
Average (50%)April 23
Late (90%)May 4

First fall frost

Early (10%)October 18
Average (50%)October 30
Late (90% chance before)November 8

See the Arnold planting calendar →