Frost dates in Marion, ND
The average last spring frost in Marion is around May 1 and the first fall frost is around October 7. That gives Marion an average growing season of about 159 days.
Last spring frost
| Early (10% chance after) | March 24 |
|---|---|
| Average (50%) | May 1 |
| Late (90%) | May 2 |
First fall frost
| Early (10%) | October 7 |
|---|---|
| Average (50%) | October 7 |
| Late (90% chance before) | October 13 |