Frost dates in Hanley Hills, MO
The average last spring frost in Hanley Hills is around March 31 and the first fall frost is around November 6. That gives Hanley Hills an average growing season of about 220 days.
Last spring frost
| Early (10% chance after) | March 16 |
|---|---|
| Average (50%) | March 31 |
| Late (90%) | April 12 |
First fall frost
| Early (10%) | October 25 |
|---|---|
| Average (50%) | November 6 |
| Late (90% chance before) | November 22 |