A utility to generate a mapping of US Postal Zip codes to USDA hardiness zone using USDA hardiness zone mapping data and a map of zip codes to latitude and longitude.
Adapted to python and docker from https://github.com/StateAndPlain/zip2zone
Possible future update, use more recent OPHZ data: https://github.com/kgjenkins/ophz