Frost dates in Rocklake, ND
The average last spring frost in Rocklake is around May 28 and the first fall frost is around September 14. That gives Rocklake an average growing season of about 109 days.
Last spring frost
| Early (10% chance after) | May 10 |
|---|---|
| Average (50%) | May 28 |
| Late (90%) | June 20 |
First fall frost
| Early (10%) | August 21 |
|---|---|
| Average (50%) | September 14 |
| Late (90% chance before) | September 25 |