Frost dates in Aurora, CO
The average last spring frost in Aurora is around May 14 and the first fall frost is around September 30. That gives Aurora an average growing season of about 139 days.
Last spring frost
| Early (10% chance after) | April 29 |
|---|---|
| Average (50%) | May 14 |
| Late (90%) | June 8 |
First fall frost
| Early (10%) | September 13 |
|---|---|
| Average (50%) | September 30 |
| Late (90% chance before) | October 14 |