Napa, California spans Three USDA Hardiness Zones 9a, 9b, and 10a, with Zone 9b (25°F to 30°F / -3.9°C to -1.1°C) covering 90% of the Napa region, including neighborhoods like Downtown Napa, Browns Valley and Silverado Country Club.
Zone 9a (20°F to 25°F / -6.7°C to -3.9°C) applies to elevated areas like Atlas Peak and Mount Veeder, and Zone 10a (30°F to 35°F / -1.1°C to 1.7°C) occurs near Elkhorn Peak.
To locate your Napa, California, USDA zone use our three tools given below, zipcode to planting zone search tool, interactive map, or planting zone table.
Napa Planting Zones by ZipCode
Napa Planting Zones Map
Select or type your Napa location in the selection box below to find its planting zone.
Planting Zones
Planting Zones
Napa Planting Zones Table
| Napa Location | Planting Zone |
|---|---|
| Loading zones data… | |
Download Napa Planting Zone Map
