Frost dates in Germantown, WI
The average last spring frost in Germantown is around May 12 and the first fall frost is around October 4. That gives Germantown an average growing season of about 145 days.
Last spring frost
| Early (10% chance after) | April 26 |
|---|---|
| Average (50%) | May 12 |
| Late (90%) | May 29 |
First fall frost
| Early (10%) | September 23 |
|---|---|
| Average (50%) | October 4 |
| Late (90% chance before) | October 18 |