Frost dates in Helper, UT
The average last spring frost in Helper is around May 13 and the first fall frost is around October 11. That gives Helper an average growing season of about 151 days.
Last spring frost
| Early (10% chance after) | April 25 |
|---|---|
| Average (50%) | May 13 |
| Late (90%) | June 3 |
First fall frost
| Early (10%) | September 20 |
|---|---|
| Average (50%) | October 11 |
| Late (90% chance before) | October 31 |