Frost dates in Tomah, WI
The average last spring frost in Tomah is around May 15 and the first fall frost is around September 26. That gives Tomah an average growing season of about 134 days.
Last spring frost
| Early (10% chance after) | April 28 |
|---|---|
| Average (50%) | May 15 |
| Late (90%) | May 29 |
First fall frost
| Early (10%) | September 5 |
|---|---|
| Average (50%) | September 26 |
| Late (90% chance before) | October 12 |