According to the 2023 USDA Hardiness Zone Map Kickapoo Site 2, Kansas is in Zones 6a (-10°F to -5°F). This is a change from the 2012 USDA Hardiness Zone Map which has Kickapoo Site 2 in Zones 5b (-15°F to -10°F) and 6a (-10°F to -5°F).