Frost dates in Knox County, Maine
The average last spring frost in Knox County falls Apr 27 and the average first fall frost Oct 19 to Oct 25, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b to 7a. Places: Camden, Rockland, Thomaston. 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 |
|---|---|---|---|---|
| 04547 | Apr 27 | Oct 25 | 6a | |
| 04563 | Apr 27 | Oct 25 | 6a | |
| 04574 | Apr 27 | Oct 19 | 5b | |
| 04645 | Apr 27 | Oct 19 | 6b | |
| 04841 | Rockland | Apr 27 | Oct 19 | 6a |
| 04843 | Camden | Apr 27 | Oct 19 | 5b |
| 04847 | Apr 27 | Oct 19 | 5b | |
| 04851 | Apr 27 | Oct 25 | 7a | |
| 04853 | Apr 27 | Oct 19 | 6a | |
| 04854 | Apr 27 | Oct 25 | 6a | |
| 04855 | Apr 27 | Oct 25 | 6b | |
| 04856 | Apr 27 | Oct 19 | 6a | |
| 04858 | Apr 27 | Oct 25 | 6a | |
| 04859 | Apr 27 | Oct 25 | 6a | |
| 04860 | Apr 27 | Oct 25 | 6b | |
| 04861 | Thomaston | Apr 27 | Oct 19 | 6a |
| 04862 | Apr 27 | Oct 19 | 5b | |
| 04863 | Apr 27 | Oct 19 | 6b | |
| 04864 | Apr 27 | Oct 19 | 5b |
Nearby counties
Lincoln County Waldo County Sagadahoc County Kennebec County Hancock County Androscoggin County
All Maine counties · Download Maine frost dates (CSV)
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