Usda Hardiness Zone 2024.  — for the first time in more than a decade, the united states department of agriculture (usda) released new hardiness zone maps.  — usda’s plant hardiness zone map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location.

 — there’s a good chance your zone shifted when the usda updated its plant hardiness map in 2023.  — these rasters provide the local mean annual extreme low temperature from 1976 to 2005 in an 800m x 800m grid covering the usa (including puerto rico) based.