Frost dates in Selby, SD
The average last spring frost in Selby is around May 13 and the first fall frost is around September 28. That gives Selby an average growing season of about 138 days.
Last spring frost
| Early (10% chance after) | April 30 |
|---|---|
| Average (50%) | May 13 |
| Late (90%) | May 27 |
First fall frost
| Early (10%) | September 14 |
|---|---|
| Average (50%) | September 28 |
| Late (90% chance before) | October 10 |