frost zones us - GARDEN
AOL: The Hidden Frost Zones in Your Yard That Kill More Plants Than You Think The Hidden Frost Zones in Your Yard That Kill More Plants Than You Think PBS: Climate change is shifting plant growth zones. Here's what to know for your garden this year Climate change is shifting plant growth zones. Here's what to know for your garden this year Our frost date calculator will tell you precisely when your garden is at risk for frost.
Understanding the Context
Enter your zipcode and we'll give you all the info we have. See the average first and last frost dates for locations across the U.S. and Canada with our frost dates calculator. Simply enter your postal code to see when the last spring frost date and first fall frost date typically occur in your area.
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Last Frost Dates by ZIP Code 2026 | The Old Farmer's Almanac Cold Hardiness zones are based on the average annual minimum temperature in a given area of the country, with USDA Zone 1 being the coldest at minus 50 degrees F and USDA Zone 11 the warmest at above 40 degrees F.