Frost dates in Deer Park, WA
The average last spring frost in Deer Park is around May 27 and the first fall frost is around September 15. That gives Deer Park an average growing season of about 111 days.
Last spring frost
| Early (10% chance after) | May 3 |
|---|---|
| Average (50%) | May 27 |
| Late (90%) | June 16 |
First fall frost
| Early (10%) | September 1 |
|---|---|
| Average (50%) | September 15 |
| Late (90% chance before) | September 29 |