Frost dates in Hyannis, NE
The average last spring frost in Hyannis is around May 5 and the first fall frost is around October 10. That gives Hyannis an average growing season of about 158 days.
Last spring frost
| Early (10% chance after) | April 17 |
|---|---|
| Average (50%) | May 5 |
| Late (90%) | May 20 |
First fall frost
| Early (10%) | October 2 |
|---|---|
| Average (50%) | October 10 |
| Late (90% chance before) | October 21 |