Frost dates in Donnybrook, ND
The average last spring frost in Donnybrook is around April 2 and the first fall frost is around October 6. That gives Donnybrook an average growing season of about 187 days.
Last spring frost
| Early (10% chance after) | February 9 |
|---|---|
| Average (50%) | April 2 |
| Late (90%) | April 30 |
First fall frost
| Early (10%) | September 12 |
|---|---|
| Average (50%) | October 6 |
| Late (90% chance before) | November 2 |