What Growing Zone Is Yountville?

Our records indicate the United States Department of Agriculture has given Yountville a growing zone designation of 9b. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Yountville's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Yountville's weather data from 1991 - 2020 in their analysis.

map of growing zone 9b (Northern California)map of growing zone 9bLatest CA growing zone map

If you are looking for plants suitable for growing in the Yountville area, head on over to our page on plants that grow well in Yountville, CA.

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map of growing zone 9b (Northern California)map of growing zone 9bLatest CA growing zone map

The growing zone is a measure of the lowest temperature that a plant can survive based on average lowest year temperatures, helping you to decide what plants would grow best in your particular climate. Since Yountville is in growing zone 9b this means that plants there can survive temperatures as low as 25 to 30 degrees Fahrenheit. Plants for Yountville's climate should be chosen with this in mind, or plants should be moved inside to keep their core temperature in the right range if necessary.

Some zones may have been changed by the USDA as of 2023. To see if the Yountville area has been affected, refer to this map of half zone changes from the 2012 version of the USDA zones to the 2023 version.

The updated map shows that over half of the Southeast has warmed by about half a zone. For gardeners, that means you can now grow plants that tolerate a bit more heat and less frost than before. The tan areas reflect this shift. Meanwhile, the white areas had slight temperature changes, but not enough to move them into a new zone. In the Western U.S., a few spots shifted cooler. That’s not due to a colder climate, but because the new map uses a larger dataset, giving a more accurate picture of local conditions. It's important to keep track of these changes when planning your garden!

Hardiness Zone FAQ

Have questions about hardiness zones and what they mean for your garden? Check out our FAQ below for quick answers to common questions about USDA hardiness zones and how they affect plant selection in Yountville, CA.

The USDA hardiness zone is 9b for Yountville. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

Yountville's Growing Zone Details

USDA Growing Zone: 9b

Zip Codes:
94599

Longitude: -122.3671

Latitude: 38.3963

Lowest Avg Temperatures (F): 25 to 30

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Map of the Yountville Area

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Plants For Other States

Looking for the best plants in a different area of the United States? Click on a button below to find plants that are ideal for that state's temperatures.

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Know someone with a naughty sense of humor? This gnome statue is sure to get some laughs.
Smart Hydroponic Growing System

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An easy to use hydroponic system that you can manage from your phone.
Metal Arbor Trellis

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Decorative arbor trellis for climbing plants and garden entrance.
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