Frost dates in Dewey-Humboldt, AZ
The average last spring frost in Dewey-Humboldt is around May 13 and the first fall frost is around October 13. That gives Dewey-Humboldt an average growing season of about 153 days.
Last spring frost
| Early (10% chance after) | April 21 |
|---|---|
| Average (50%) | May 13 |
| Late (90%) | June 2 |
First fall frost
| Early (10%) | September 23 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | November 1 |