Frost dates in Cambridge, MA

The average last spring frost in Cambridge is around April 23 and the first fall frost is around October 20. That gives Cambridge an average growing season of about 180 days.

Last spring frost

Early (10% chance after)April 11
Average (50%)April 23
Late (90%)May 9

First fall frost

Early (10%)October 7
Average (50%)October 20
Late (90% chance before)November 5

See the Cambridge planting calendar →