Us Hardiness Zone Map 2024 Usa. Each growing zone is 10°f warmer (or colder) in an average winter than. Department of agriculture's plant hardiness zone map , and it's the national standard for gardeners and growers to figure out which. Usda scientists develop technology to reduce pathogens in intact eggs.
Background for map and its use. The 2023 usda plant hardiness zone map, released in november 2023, was the first update since 2012.