Frost dates in Jefferson County, New York
The average last spring frost in Jefferson County falls May 2 to May 14 and the average first fall frost Sep 26 to Oct 14, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 5b. Places: Adams, Adams Center, Alexandria Bay, Antwerp, Belleville, Black River. 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 |
|---|---|---|---|---|
| 13601 | Watertown | May 2 | Oct 13 | 5a |
| 13602 | Fort Drum | May 2 | Oct 13 | 5a |
| 13603 | Fort Drum | May 2 | Oct 13 | 5a |
| 13605 | Adams | May 11 | Oct 1 | 5a |
| 13606 | Adams Center | May 11 | Oct 1 | 5a |
| 13607 | Alexandria Bay | May 14 | Sep 26 | 5a |
| 13608 | Antwerp | May 14 | Sep 26 | 4b |
| 13611 | Belleville | May 11 | Oct 1 | 5b |
| 13612 | Black River | May 2 | Oct 13 | 4b |
| 13615 | Brownville | May 11 | Oct 1 | 5a |
| 13616 | Calcium | May 2 | Oct 13 | 5a |
| 13618 | Cape Vincent | May 11 | Oct 1 | 5b |
| 13619 | Great Bend | May 8 | Oct 1 | 4b |
| 13622 | Chaumont | May 11 | Oct 1 | 5a |
| 13624 | Clayton | May 11 | Oct 1 | 5a |
| 13628 | Deferiet | May 2 | Oct 13 | 5a |
| 13632 | Depauville | May 11 | Oct 1 | 5a |
| 13634 | Dexter | May 11 | Oct 1 | 5a |
| 13636 | Ellisburg | May 10 | Oct 14 | 5b |
| 13637 | Calcium | May 2 | Oct 13 | 5a |
| 13638 | Felts Mills | May 2 | Oct 13 | 5a |
| 13640 | May 11 | Oct 1 | 5b | |
| 13641 | Fishers Landing | May 11 | Oct 1 | 5b |
| 13643 | Great Bend | May 2 | Oct 13 | 5a |
| 13650 | Henderson | May 11 | Oct 1 | 5b |
| 13651 | May 11 | Oct 1 | 5b | |
| 13656 | Depauville | May 11 | Oct 1 | 5a |
| 13659 | Lorraine | May 2 | Oct 13 | 4b |
| 13661 | Mannsville | May 10 | Oct 14 | 5b |
| 13673 | Philadelphia | May 14 | Sep 26 | 5a |
| 13674 | Pierrepont Manor | May 10 | Oct 14 | 5a |
| 13675 | Plessis | May 14 | Sep 26 | 5a |
| 13679 | Redwood | May 14 | Sep 26 | 5a |
| 13682 | Rodman | May 2 | Oct 13 | 4b |
| 13685 | Sackets Harbor | May 11 | Oct 1 | 5b |
| 13691 | Theresa | May 14 | Sep 26 | 5a |
| 13692 | Thousand Island Park | May 11 | Oct 1 | 5a |
| 13693 | May 11 | Oct 1 | 5b |
Nearby counties
Lewis County Oswego County St. Lawrence County Oneida County Onondaga County Herkimer County
All New York counties · Download New York frost dates (CSV)
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