Frost dates in Osnabrock, ND
The average last spring frost in Osnabrock is around May 26 and the first fall frost is around September 16. That gives Osnabrock an average growing season of about 113 days.
Last spring frost
| Early (10% chance after) | May 9 |
|---|---|
| Average (50%) | May 26 |
| Late (90%) | June 15 |
First fall frost
| Early (10%) | August 28 |
|---|---|
| Average (50%) | September 16 |
| Late (90% chance before) | October 2 |