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Climate Averages, Frost Dates, Hardiness Zones and Drought Conditions for Napa California
Climate Averages, Frost Dates, Hardiness Zones and Drought Conditions for Napa California
Zone 11a 40°F to 45°F. Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of California which ranges from USDA Zone 4b to USDA Zone 11a.
22 gru 2023 · Learn More About The Map Of USDA Hardiness Zones For Plants & Trees In California. This planting zone map is based on the 2023 USDA plant hardiness map, which was adjusted for the warmer temperatures that have occurred over the past few decades.
USDA Hardiness Zone 11 features a tropical climate with average minimum winter temperatures above 40°F (4.4°C). Gardeners and landscapers in Zone 11 can create thriving landscapes by selecting appropriate plants and employing specific gardening techniques to ensure the success of their gardens.
Zone 11 represents any area where the average annual minimum temperature is above 40° F (4.4° C). The map shows twenty latitude and longitude lines. Areas above an arbitrary elevation are traditionally considered unsuitable for plant cropping and do not bear appropriate zone designations.
Hardiness Zone Map. The Arbor Day Foundation developed this U.S. Hardiness Zone Map based upon data from 5,000 National Climatic Data Center cooperative stations across the continental United States.
