Frost dates in Nephi, UT

The average last spring frost in Nephi is around May 13 and the first fall frost is around October 5. That gives Nephi an average growing season of about 145 days.

Last spring frost

Early (10% chance after)April 23
Average (50%)May 13
Late (90%)June 2

First fall frost

Early (10%)September 19
Average (50%)October 5
Late (90% chance before)October 20

See the Nephi planting calendar →