Frost dates in St. Anthony, ID
The average last spring frost in St. Anthony is around June 3 and the first fall frost is around September 9. That gives St. Anthony an average growing season of about 98 days.
Last spring frost
| Early (10% chance after) | May 13 |
|---|---|
| Average (50%) | June 3 |
| Late (90%) | July 1 |
First fall frost
| Early (10%) | August 24 |
|---|---|
| Average (50%) | September 9 |
| Late (90% chance before) | October 1 |