According to the 2023 USDA Hardiness Zone Map Elko County, Nevada is in Zones 4a (-30°F to -25°F), 4b (-25°F to -20°F), 5a (-20°F to -15°F), 5b (-15°F to -10°F), 6a (-10°F to -5°F), 6b (-5°F to 0°F), 7a (0°F to 5°F) and 7b (5°F to 10°F). There is no change from the 2012 USDA Hardiness Zone Map which has Elko County in also in Zones 4a (-30°F to -25°F), 4b (-25°F to -20°F), 5a (-20°F to -15°F), 5b (-15°F to -10°F), 6a (-10°F to -5°F), 6b (-5°F to 0°F), 7a (0°F to 5°F) and 7b (5°F to 10°F).