Frost dates in Port Lions, AK
The average last spring frost in Port Lions is around May 21 and the first fall frost is around September 29. That gives Port Lions an average growing season of about 131 days.
Last spring frost
| Early (10% chance after) | April 25 |
|---|---|
| Average (50%) | May 21 |
| Late (90%) | May 29 |
First fall frost
| Early (10%) | September 21 |
|---|---|
| Average (50%) | September 29 |
| Late (90% chance before) | October 20 |