Frost dates in Ritchey, MO
The average last spring frost in Ritchey is around April 17 and the first fall frost is around October 22. That gives Ritchey an average growing season of about 188 days.
Last spring frost
| Early (10% chance after) | April 5 |
|---|---|
| Average (50%) | April 17 |
| Late (90%) | April 29 |
First fall frost
| Early (10%) | October 10 |
|---|---|
| Average (50%) | October 22 |
| Late (90% chance before) | November 1 |