Frost dates in Newhalen, AK
The average last spring frost in Newhalen is around May 18 and the first fall frost is around September 25. That gives Newhalen an average growing season of about 130 days.
Last spring frost
| Early (10% chance after) | April 29 |
|---|---|
| Average (50%) | May 18 |
| Late (90%) | May 31 |
First fall frost
| Early (10%) | September 10 |
|---|---|
| Average (50%) | September 25 |
| Late (90% chance before) | October 7 |