Frost dates in Aleutians West Census Area, Alaska
The average last spring frost in Aleutians West Census Area falls May 6 to Jun 4 and the average first fall frost Sep 28 to Oct 18, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6b to 8b. Places: Adak, Atka, Nikolski, St. George, St. Paul, Unalaska. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 99546 | Adak | n/a | n/a | 8b |
| 99547 | Atka | n/a | n/a | 8b |
| 99591 | St. George | May 31 | Oct 5 | 7a |
| 99638 | Nikolski | May 6 | Oct 18 | 8b |
| 99660 | St. Paul | Jun 4 | Sep 28 | 6b |
| 99685 | Unalaska | May 6 | Oct 18 | 8a |
| 99692 | Unalaska | May 6 | Oct 18 | 8b |
Nearby counties
Aleutians East Borough Bethel Census Area Dillingham Census Area Lake and Peninsula Borough Kusilvak Census Area Bristol Bay Borough
All Alaska counties · Download Alaska frost dates (CSV)
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