Frost dates in Burlington, CO
The average last spring frost in Burlington is around May 6 and the first fall frost is around October 8. That gives Burlington an average growing season of about 155 days.
Last spring frost
| Early (10% chance after) | April 21 |
|---|---|
| Average (50%) | May 6 |
| Late (90%) | May 20 |
First fall frost
| Early (10%) | September 22 |
|---|---|
| Average (50%) | October 8 |
| Late (90% chance before) | October 24 |