Frost dates in Richfield, MN
The average last spring frost in Richfield is around April 27 and the first fall frost is around October 10. That gives Richfield an average growing season of about 166 days.
Last spring frost
| Early (10% chance after) | April 13 |
|---|---|
| Average (50%) | April 27 |
| Late (90%) | May 12 |
First fall frost
| Early (10%) | September 26 |
|---|---|
| Average (50%) | October 10 |
| Late (90% chance before) | October 27 |