Frost dates in North Slope Borough, Alaska
The average last spring frost in North Slope Borough falls May 22 to Jun 10 and the average first fall frost Aug 24 to Sep 11, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 2a to 3a. Places: Anaktuvuk Pass, Atqasuk, Kaktovik, Nuiqsut, Point Hope, Point Lay. 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 |
|---|---|---|---|---|
| 99519 | Prudhoe Bay | n/a | n/a | 2a |
| 99721 | Anaktuvuk Pass | May 22 | Aug 24 | 2b |
| 99723 | Utqiaġvik | n/a | n/a | 2b |
| 99734 | Prudhoe Bay | n/a | n/a | 2a |
| 99747 | Kaktovik | n/a | n/a | 3a |
| 99759 | Point Lay | Jun 10 | Sep 11 | 2b |
| 99766 | Point Hope | Jun 10 | Sep 11 | 3a |
| 99782 | Wainwright | n/a | n/a | 2b |
| 99789 | Nuiqsut | n/a | n/a | 2a |
| 99791 | Atqasuk | n/a | n/a | 2a |
Nearby counties
Northwest Arctic Borough Yukon-Koyukuk Census Area Fairbanks North Star Borough Denali Borough Nome Census Area Southeast Fairbanks Census Area
All Alaska counties · Download Alaska frost dates (CSV)
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