Frost dates in Medical Lake, WA
The average last spring frost in Medical Lake is around May 13 and the first fall frost is around September 23. That gives Medical Lake an average growing season of about 133 days.
Last spring frost
| Early (10% chance after) | April 26 |
|---|---|
| Average (50%) | May 13 |
| Late (90%) | May 29 |
First fall frost
| Early (10%) | September 8 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 6 |