Frost dates in Oostburg, WI
The average last spring frost in Oostburg is around May 4 and the first fall frost is around October 13. That gives Oostburg an average growing season of about 162 days.
Last spring frost
| Early (10% chance after) | April 18 |
|---|---|
| Average (50%) | May 4 |
| Late (90%) | May 20 |
First fall frost
| Early (10%) | October 1 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | October 21 |