Frost dates in Ketchikan Gateway Borough, Alaska
The average last spring frost in Ketchikan Gateway Borough falls Apr 4 and the average first fall frost Nov 9, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7b. Places: Ketchikan. 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 |
|---|---|---|---|---|
| 99901 | Ketchikan | Apr 4 | Nov 9 | 7b |
Nearby counties
Wrangell City and Borough Prince of Wales-Hyder Census Area Petersburg Borough Sitka City and Borough Juneau City and Borough Hoonah-Angoon Census Area
All Alaska counties · Download Alaska frost dates (CSV)
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