Frost dates in Lost Springs, WY
The average last spring frost in Lost Springs is around June 5 and the first fall frost is around September 17. That gives Lost Springs an average growing season of about 104 days.
Last spring frost
| Early (10% chance after) | May 15 |
|---|---|
| Average (50%) | June 5 |
| Late (90%) | June 14 |
First fall frost
| Early (10%) | September 6 |
|---|---|
| Average (50%) | September 17 |
| Late (90% chance before) | October 5 |