Frost dates in Parma, ID
The average last spring frost in Parma is around May 5 and the first fall frost is around September 30. That gives Parma an average growing season of about 148 days.
Last spring frost
| Early (10% chance after) | April 17 |
|---|---|
| Average (50%) | May 5 |
| Late (90%) | May 25 |
First fall frost
| Early (10%) | September 17 |
|---|---|
| Average (50%) | September 30 |
| Late (90% chance before) | October 19 |