Frost dates in Oldtown, ID
The average last spring frost in Oldtown is around May 30 and the first fall frost is around September 11. That gives Oldtown an average growing season of about 104 days.
Last spring frost
| Early (10% chance after) | May 5 |
|---|---|
| Average (50%) | May 30 |
| Late (90%) | July 19 |
First fall frost
| Early (10%) | August 15 |
|---|---|
| Average (50%) | September 11 |
| Late (90% chance before) | September 29 |