Frost dates in Britton, SD
The average last spring frost in Britton is around May 14 and the first fall frost is around September 23. That gives Britton an average growing season of about 132 days.
Last spring frost
| Early (10% chance after) | April 25 |
|---|---|
| Average (50%) | May 14 |
| Late (90%) | May 28 |
First fall frost
| Early (10%) | September 10 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 9 |