Frost dates in Fort Supply, OK
The average last spring frost in Fort Supply is around April 14 and the first fall frost is around October 21. That gives Fort Supply an average growing season of about 190 days.
Last spring frost
| Early (10% chance after) | March 27 |
|---|---|
| Average (50%) | April 14 |
| Late (90%) | May 3 |
First fall frost
| Early (10%) | October 3 |
|---|---|
| Average (50%) | October 21 |
| Late (90% chance before) | November 6 |