Frost dates in Niangua, MO
The average last spring frost in Niangua is around April 13 and the first fall frost is around October 21. That gives Niangua an average growing season of about 191 days.
Last spring frost
| Early (10% chance after) | March 28 |
|---|---|
| Average (50%) | April 13 |
| Late (90%) | May 1 |
First fall frost
| Early (10%) | October 8 |
|---|---|
| Average (50%) | October 21 |
| Late (90% chance before) | November 9 |