What Growing Zone Is Oak Brook?
Our records indicate the United States Department of Agriculture has given Oak Brook a growing zone designation of 6a. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Oak Brook's climate based on the average extreme annual temperature. .Our data is based on the latest 2023 USDA maps, which used Oak Brook's weather data from 1991 - 2020 in their analysis.
Latest IL growing zone mapIf you are looking for plants suitable for growing in the Oak Brook area, head on over to our page on plants that grow well in Oak Brook, IL.
Hoeing Ain't Easy Garden Sign
Fun and decorative garden sign to add personality to your space.
Stainless Steel Garden Tool Set
Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Rustic Iron Garden Trellis
Sturdy trellis for supporting climbing plants and vines.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
Latest IL growing zone mapThe 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 Oak Brook is in growing zone 6a this means that plants there can survive temperatures as low as -10 to -5 degrees Fahrenheit. Plants for Oak Brook'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 Oak Brook area has been affected, refer to this map of half zone changes from the 2012 version of the USDA zones to the 2023 version.
Half zone changes from 2012 to 2023The 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!
Oak Brook's Growing Zone Details
USDA Growing Zone: 6a
Longitude: -87.9516
Latitude: 41.8373
Lowest Avg Temperatures (F): -10 to -5
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Spacious greenhouse for extending your growing season.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Hoeing Ain't Easy Garden Sign
Fun and decorative garden sign to add personality to your space.
Cluck Around Sign
Whimsical sign for your chicken coop area.
Map of the Oak Brook Area
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Brass Watering Can
Elegant brass watering can with classic design and durability.
Wooden Chicken Coop
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Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Hoeing Ain't Easy Garden Sign
Fun and decorative garden sign to add personality to your space.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
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Compact greenhouse perfect for small spaces.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Fiskars Garden Harvest Basket
Sturdy basket for collecting and carrying your garden harvest.
Stainless Steel Garden Tool Set
Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
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