Frost dates in Spooner, WI
The average last spring frost in Spooner is around May 20 and the first fall frost is around September 23. That gives Spooner an average growing season of about 126 days.
Last spring frost
| Early (10% chance after) | May 6 |
|---|---|
| Average (50%) | May 20 |
| Late (90%) | June 10 |
First fall frost
| Early (10%) | September 5 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 7 |