Frost dates in Fredericksburg, IA
The average last spring frost in Fredericksburg is around May 3 and the first fall frost is around October 4. That gives Fredericksburg an average growing season of about 154 days.
Last spring frost
| Early (10% chance after) | April 20 |
|---|---|
| Average (50%) | May 3 |
| Late (90%) | May 17 |
First fall frost
| Early (10%) | September 20 |
|---|---|
| Average (50%) | October 4 |
| Late (90% chance before) | October 19 |