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 |