Frost dates in Hailey, ID
The average last spring frost in Hailey is around May 14 and the first fall frost is around October 1. That gives Hailey an average growing season of about 140 days.
Last spring frost
| Early (10% chance after) | May 4 |
|---|---|
| Average (50%) | May 14 |
| Late (90%) | June 19 |
First fall frost
| Early (10%) | September 24 |
|---|---|
| Average (50%) | October 1 |
| Late (90% chance before) | October 25 |