Frost dates in Rathdrum, ID
The average last spring frost in Rathdrum is around April 29 and the first fall frost is around October 23. That gives Rathdrum an average growing season of about 177 days.
Last spring frost
| Early (10% chance after) | April 17 |
|---|---|
| Average (50%) | April 29 |
| Late (90%) | May 14 |
First fall frost
| Early (10%) | October 3 |
|---|---|
| Average (50%) | October 23 |
| Late (90% chance before) | November 2 |