What Growing Zone Is 93442?

Our records indicate the United States Department of Agriculture has given zip code 93442 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 zip code 93442's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used weather data from 1991 - 2020 in their analysis.

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

If you are looking for plants suitable for growing in zip code 93442, head on over to our page on plants that grow well in Morro Bay, California.

Large Greenhouse Kit

Large Greenhouse Kit

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Fiskars Garden Harvest Basket

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Worm Composting Kit

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Raised Garden Bed Kit

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map of growing zone 9b (Northern California)map of growing zone 9bLatest California 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 zip code 93442 is in growing zone 9b this means that plants there can survive temperatures as low as 25 to 30 degrees Fahrenheit. Plants for zip code 93442'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 zip code 93442 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 for zip code 93442.

The USDA hardiness zone is 9b for zip code 93442. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

93442's Growing Zone Details

USDA Growing Zone: 9b

Zip Codes:
93442

Longitude: -120.80495

Latitude: 35.4

Lowest Avg Temperatures (F): 25 to 30

Stainless Steel Garden Tool Set

Stainless Steel Garden Tool Set

Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Life Is Better w/ Chickens Sign

Life Is Better w/ Chickens Sign

A heart warming sign for the chicken lover in your life.
Fiskars Garden Harvest Basket

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.
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Naughty Garden Gnome Statue

Know someone with a naughty sense of humor? This gnome statue is sure to get some laughs.
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Women's Panama Summer Hat

This women's Panama hat was a hit at my family Christmas last year.

Map of the 93442 Area

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Rustic Iron Garden Trellis

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Hoeing Ain't Easy Garden Sign

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Cluck Around Sign

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Smart Hydroponic Growing System

Smart Hydroponic Growing System

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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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Smart Hydroponic Growing System

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An easy to use hydroponic system that you can manage from your phone.
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Deluxe tools for the gardener in your life to work the earth.
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For the chicken owner with a sense of humor.
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Perfect for starting seeds indoors before transplanting to your garden.

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