Frost dates in Trenton, UT

The average last spring frost in Trenton is around May 20 and the first fall frost is around September 20. That gives Trenton an average growing season of about 123 days.

Last spring frost

Early (10% chance after)May 1
Average (50%)May 20
Late (90%)June 15

First fall frost

Early (10%)August 28
Average (50%)September 20
Late (90% chance before)October 11

See the Trenton planting calendar →