Frost dates in New Haven, CT

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

Last spring frost

Early (10% chance after)April 3
Average (50%)April 13
Late (90%)April 26

First fall frost

Early (10%)October 10
Average (50%)October 27
Late (90% chance before)November 11

See the New Haven planting calendar →