Frost dates in Ephraim, UT

The average last spring frost in Ephraim is around May 25 and the first fall frost is around September 23. That gives Ephraim an average growing season of about 121 days.

Last spring frost

Early (10% chance after)May 10
Average (50%)May 25
Late (90%)June 13

First fall frost

Early (10%)September 11
Average (50%)September 23
Late (90% chance before)October 8

See the Ephraim planting calendar →