Frost dates in Petersburg, NE
The average last spring frost in Petersburg is around May 1 and the first fall frost is around October 11. That gives Petersburg an average growing season of about 163 days.
Last spring frost
| Early (10% chance after) | April 18 |
|---|---|
| Average (50%) | May 1 |
| Late (90%) | May 16 |
First fall frost
| Early (10%) | September 26 |
|---|---|
| Average (50%) | October 11 |
| Late (90% chance before) | October 25 |