Frost dates in Cornish, UT
The average last spring frost in Cornish is around May 20 and the first fall frost is around September 20. That gives Cornish an average growing season of about 123 days.
Last spring frost
| Early (10% chance after) | May 1 |
|---|---|
| Average (50%) | May 20 |
| Late (90%) | June 15 |
First fall frost
| Early (10%) | August 28 |
|---|---|
| Average (50%) | September 20 |
| Late (90% chance before) | October 11 |