Washington County, Maine
Local growing conditions for Washington County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 31 ZIP codes in our data.
Hardiness zones in Washington County
Washington County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Washington County for its live forecast, frost dates, and planting calendar:
Danforth 04424
Eastport 04631
Machias 04648
Danforth 04413
Vanceboro 04454
Danforth 04490
Vanceboro 04491
Woodland 04492
Jonesport 04606
Jonesport 04611
Calais 04619
Milbridge 04622
Machias 04623
Machias 04626
Eastport 04628
Machias 04630
Milbridge 04643
Jonesport 04649
Lubec 04652
Machias 04654
Machias 04655
Woodland 04657
Milbridge 04658
Calais 04666
More for Maine
- Agriculture in Maine
- Frost dates across Maine
- USDA hardiness zones explained
- Planting calendar by ZIP code
County growing conditions are compiled from our ZIP-code database, USDA hardiness-zone data, and NOAA climate normals. Conditions vary within a county by elevation and local microclimate. Page updated Aug 4, 2026.