This tool lets you visualize contemporary and future crop suitability zones.
Many crops can be productive within a range of cold hardiness zones, or crop suitability zones.
The USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The map is based on the average annual minimum winter temperature, divided into 10-degree F zones.
This tool allows you to select a crop, from amongst fruit/nut trees and cereal grains. Using the selected crop, ranges of suitable cold hardiness zones are populated. Note that these ranges come from commercial nurseries in the USA and may not be completely accurate, but are a good place to start.
The tool then shows you spatially where the range of cold hardiness zones are on a map of the contiguous USA. You can choose to look at the historical present day cold hardiness zones or future projections of cold hardiness zones in the early/mid/late 21st century under either a low or high future green house gas emissions scenario.