Frost dates in Glen Allen, MO
The average last spring frost in Glen Allen is around April 19 and the first fall frost is around October 15. That gives Glen Allen an average growing season of about 179 days.
Last spring frost
| Early (10% chance after) | April 5 |
|---|---|
| Average (50%) | April 19 |
| Late (90%) | May 3 |
First fall frost
| Early (10%) | September 30 |
|---|---|
| Average (50%) | October 15 |
| Late (90% chance before) | October 30 |