Frost dates in Toronto, SD
The average last spring frost in Toronto is around May 10 and the first fall frost is around October 3. That gives Toronto an average growing season of about 146 days.
Last spring frost
| Early (10% chance after) | April 24 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | May 20 |
First fall frost
| Early (10%) | September 20 |
|---|---|
| Average (50%) | October 3 |
| Late (90% chance before) | October 13 |