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USDA Hardiness Map
Last updated on Friday, July 18, 2003
USDA Hardiness Map
Average Low Temperatures
Zone 4-30°F to -20°F
Zone 5-20°F to -10°F
Zone 6-10°F to 0°F
Zone 7-0°F to 10°F
Zone 8-10°F to 20°F
Map courtesy Boise Matthews, GoAmericanWest.com
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