Frost dates in Williamsville, NY
The average last spring frost in Williamsville is around April 27 and the first fall frost is around October 21. That gives Williamsville an average growing season of about 177 days.
Last spring frost
| Early (10% chance after) | April 13 |
|---|---|
| Average (50%) | April 27 |
| Late (90%) | May 10 |
First fall frost
| Early (10%) | October 6 |
|---|---|
| Average (50%) | October 21 |
| Late (90% chance before) | November 4 |