Frost dates in Ham Lake, MN
The average last spring frost in Ham Lake is around May 10 and the first fall frost is around October 3. That gives Ham Lake an average growing season of about 146 days.
Last spring frost
| Early (10% chance after) | April 27 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | May 22 |
First fall frost
| Early (10%) | September 13 |
|---|---|
| Average (50%) | October 3 |
| Late (90% chance before) | October 13 |