Frost dates in Souris, ND
The average last spring frost in Souris is around May 20 and the first fall frost is around September 19. That gives Souris an average growing season of about 122 days.
Last spring frost
| Early (10% chance after) | May 7 |
|---|---|
| Average (50%) | May 20 |
| Late (90%) | June 5 |
First fall frost
| Early (10%) | September 1 |
|---|---|
| Average (50%) | September 19 |
| Late (90% chance before) | October 6 |