Frost dates in Larkspur, CO
The average last spring frost in Larkspur is around May 26 and the first fall frost is around September 23. That gives Larkspur an average growing season of about 120 days.
Last spring frost
| Early (10% chance after) | April 30 |
|---|---|
| Average (50%) | May 26 |
| Late (90%) | June 11 |
First fall frost
| Early (10%) | September 14 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 13 |