Frost dates in Elk River, ID
The average last spring frost in Elk River is around May 30 and the first fall frost is around September 11. That gives Elk River an average growing season of about 104 days.
Last spring frost
| Early (10% chance after) | May 12 |
|---|---|
| Average (50%) | May 30 |
| Late (90%) | July 3 |
First fall frost
| Early (10%) | August 25 |
|---|---|
| Average (50%) | September 11 |
| Late (90% chance before) | October 1 |