What Growing Zone Is San Bernardino?

Our records indicate the United States Department of Agriculture has given San Bernardino a growing zone designation of 10a. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in San Bernardino's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used San Bernardino's weather data from 1991 - 2020 in their analysis.

map of growing zone 10a (Northern California)map of growing zone 10aLatest CA growing zone map

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

Hoeing Ain't Easy Garden Sign

Hoeing Ain't Easy Garden Sign

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Hydroponic Garden Grow Kit

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Rustic Iron Garden Trellis

Rustic Iron Garden Trellis

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map of growing zone 10a (Northern California)map of growing zone 10aLatest 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 San Bernardino is in growing zone 10a this means that plants there can survive temperatures as low as 30 to 35 degrees Fahrenheit. Plants for San Bernardino'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.

USDA growing zone map of the United States

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

map of usda hardiness zone changes from 2012 to 2023Half zone changes from 2012 to 2023

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 San Bernardino, CA.

The USDA hardiness zone is 10a for San Bernardino. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

San Bernardino's Growing Zone Details

USDA Growing Zone: 10a

Zip Codes: 92404, 92369, 92401, 92407, 92405, 92408, 92411, 92410, 92415, 92346, 92403, 92406, 92413, 92418, 92423, 92427

Longitude: -117.2943

Latitude: 34.1416

Lowest Avg Temperatures (F): 30 to 35

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Reusable Grow Bags

Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.
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Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Raised Garden Planter

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Shiitake Mushroom Kit

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Map of the San Bernardino 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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