Frost dates in Merrillan, WI
The average last spring frost in Merrillan is around April 27 and the first fall frost is around October 1. That gives Merrillan an average growing season of about 157 days.
Last spring frost
| Early (10% chance after) | March 31 |
|---|---|
| Average (50%) | April 27 |
| Late (90%) | May 29 |
First fall frost
| Early (10%) | August 31 |
|---|---|
| Average (50%) | October 1 |
| Late (90% chance before) | November 15 |