Frost dates in Northwest Arctic Borough, Alaska
The average last spring frost in Northwest Arctic Borough falls May 18 to Jun 10 and the average first fall frost Sep 8 to Sep 24, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 1b to 3a. Places: Ambler, Buckland, Deering, Kiana, Kivalina, Kobuk. 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 |
|---|---|---|---|---|
| 99727 | Buckland | Jun 5 | Sep 24 | 2b |
| 99736 | Deering | Jun 5 | Sep 24 | 3a |
| 99749 | Kiana | Jun 5 | Sep 24 | 2a |
| 99750 | Kivalina | Jun 10 | Sep 11 | 3a |
| 99751 | Kobuk | May 18 | Sep 8 | 1b |
| 99752 | Red Dog Mine | Jun 5 | Sep 24 | 2b |
| 99761 | Noatak | Jun 5 | Sep 24 | 2a |
| 99763 | Noorvik | Jun 5 | Sep 24 | 2b |
| 99770 | Selawik | Jun 5 | Sep 24 | 2a |
| 99773 | Shungnak | May 18 | Sep 8 | 1b |
| 99786 | Ambler | n/a | n/a | 2a |
Nearby counties
Nome Census Area Yukon-Koyukuk Census Area North Slope Borough Kusilvak Census Area Denali Borough Fairbanks North Star Borough
All Alaska counties · Download Alaska frost dates (CSV)
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