Frost dates in Aberdeen, SD
The average last spring frost in Aberdeen is around May 12 and the first fall frost is around October 1. That gives Aberdeen an average growing season of about 142 days.
Last spring frost
| Early (10% chance after) | May 2 |
|---|---|
| Average (50%) | May 12 |
| Late (90%) | May 20 |
First fall frost
| Early (10%) | September 14 |
|---|---|
| Average (50%) | October 1 |
| Late (90% chance before) | October 8 |