Frost dates in Geraldine, MT
The average last spring frost in Geraldine is around May 19 and the first fall frost is around September 19. That gives Geraldine an average growing season of about 123 days.
Last spring frost
| Early (10% chance after) | May 7 |
|---|---|
| Average (50%) | May 19 |
| Late (90%) | June 3 |
First fall frost
| Early (10%) | September 5 |
|---|---|
| Average (50%) | September 19 |
| Late (90% chance before) | October 3 |