Frost dates in Caribou, ME
The average last spring frost in Caribou is around May 17 and the first fall frost is around September 24. That gives Caribou an average growing season of about 130 days.
Last spring frost
| Early (10% chance after) | May 4 |
|---|---|
| Average (50%) | May 17 |
| Late (90%) | May 28 |
First fall frost
| Early (10%) | September 12 |
|---|---|
| Average (50%) | September 24 |
| Late (90% chance before) | October 6 |