Frost dates in Hewitt, WI
The average last spring frost in Hewitt is around May 14 and the first fall frost is around September 28. That gives Hewitt an average growing season of about 137 days.
Last spring frost
| Early (10% chance after) | April 27 |
|---|---|
| Average (50%) | May 14 |
| Late (90%) | May 29 |
First fall frost
| Early (10%) | September 13 |
|---|---|
| Average (50%) | September 28 |
| Late (90% chance before) | October 13 |