Frost dates in Bismarck, MO
The average last spring frost in Bismarck is around April 18 and the first fall frost is around October 15. That gives Bismarck an average growing season of about 180 days.
Last spring frost
| Early (10% chance after) | April 1 |
|---|---|
| Average (50%) | April 18 |
| Late (90%) | May 3 |
First fall frost
| Early (10%) | September 30 |
|---|---|
| Average (50%) | October 15 |
| Late (90% chance before) | November 1 |