Frost dates in Marvin, SD
The average last spring frost in Marvin is around May 16 and the first fall frost is around September 23. That gives Marvin an average growing season of about 130 days.
Last spring frost
| Early (10% chance after) | May 1 |
|---|---|
| Average (50%) | May 16 |
| Late (90%) | June 2 |
First fall frost
| Early (10%) | September 10 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 10 |