Frost dates in Grover, CO
The average last spring frost in Grover is around May 18 and the first fall frost is around September 23. That gives Grover an average growing season of about 128 days.
Last spring frost
| Early (10% chance after) | May 6 |
|---|---|
| Average (50%) | May 18 |
| Late (90%) | June 4 |
First fall frost
| Early (10%) | September 13 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 6 |