Frost dates in Ross, ND
The average last spring frost in Ross is around May 20 and the first fall frost is around September 15. That gives Ross an average growing season of about 118 days.
Last spring frost
| Early (10% chance after) | May 7 |
|---|---|
| Average (50%) | May 20 |
| Late (90%) | June 2 |
First fall frost
| Early (10%) | September 4 |
|---|---|
| Average (50%) | September 15 |
| Late (90% chance before) | October 1 |