Frost dates in Mayville, ND
The average last spring frost in Mayville is around May 15 and the first fall frost is around September 23. That gives Mayville an average growing season of about 131 days.
Last spring frost
| Early (10% chance after) | May 2 |
|---|---|
| Average (50%) | May 15 |
| Late (90%) | June 6 |
First fall frost
| Early (10%) | September 6 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 8 |