Frost dates in Newcastle, WA
The average last spring frost in Newcastle is around March 18 and the first fall frost is around November 11. That gives Newcastle an average growing season of about 238 days.
Last spring frost
| Early (10% chance after) | February 21 |
|---|---|
| Average (50%) | March 18 |
| Late (90%) | April 3 |
First fall frost
| Early (10%) | October 28 |
|---|---|
| Average (50%) | November 11 |
| Late (90% chance before) | December 5 |