Frost dates in Maryland Heights, MO
The average last spring frost in Maryland Heights is around April 8 and the first fall frost is around October 23. That gives Maryland Heights an average growing season of about 198 days.
Last spring frost
| Early (10% chance after) | March 26 |
|---|---|
| Average (50%) | April 8 |
| Late (90%) | April 22 |
First fall frost
| Early (10%) | October 2 |
|---|---|
| Average (50%) | October 23 |
| Late (90% chance before) | November 10 |