Frost dates in St. Charles, AR
The average last spring frost in St. Charles is around March 19 and the first fall frost is around November 6. That gives St. Charles an average growing season of about 232 days.
Last spring frost
| Early (10% chance after) | February 25 |
|---|---|
| Average (50%) | March 19 |
| Late (90%) | April 8 |
First fall frost
| Early (10%) | October 22 |
|---|---|
| Average (50%) | November 6 |
| Late (90% chance before) | November 22 |