Frost dates in Merwin, MO
The average last spring frost in Merwin is around April 16 and the first fall frost is around October 19. That gives Merwin an average growing season of about 186 days.
Last spring frost
| Early (10% chance after) | April 1 |
|---|---|
| Average (50%) | April 16 |
| Late (90%) | May 2 |
First fall frost
| Early (10%) | October 3 |
|---|---|
| Average (50%) | October 19 |
| Late (90% chance before) | November 5 |