Frost dates in Klawock, AK
The average last spring frost in Klawock is around May 3 and the first fall frost is around October 19. That gives Klawock an average growing season of about 169 days.
Last spring frost
| Early (10% chance after) | April 15 |
|---|---|
| Average (50%) | May 3 |
| Late (90%) | May 15 |
First fall frost
| Early (10%) | October 2 |
|---|---|
| Average (50%) | October 19 |
| Late (90% chance before) | November 2 |