North Dakota Plant Hardiness Zones

Hardiness Zones, also referred to as Growing Zones or Planting zones are defined by the U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS). The zones in this map were created in 2023 using mean extreme climate data covering the period of 1991 to 2020. The previous version of this map released in 2012 was created using climate data from the period of 1976-2005. The data in the 2012 maps covered a cooler period than the 2023 maps.

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North Dakota Hardiness Zones Map - 2023

Click on the map for more information. Click on the icon in the lower right to view the map legend. Add additional data layers using the icon in the upper right corner.

List of Hardiness Zones for Locations in North Dakota

Location2023 Hardiness Zone2012 Hardiness Zone1990 Hardiness Zone
Bismarck4a - -30°F to -25°F 4a - -30°F to -25°F4a - -30°F to -25°F
Devils Lake4a - -30°F to -25°F 4a - -30°F to -25°F3b - -35°F to -30°F
Dickinson4a - -30°F to -25°F 4a - -30°F to -25°F3b - -35°F to -30°F
Fargo4a - -30°F to -25°F 4a - -30°F to -25°F4a - -30°F to -25°F
Grand Forks4a - -30°F to -25°F 4a - -30°F to -25°F4a - -30°F to -25°F
Jamestown4a - -30°F to -25°F 4a - -30°F to -25°F4a - -30°F to -25°F
Mandan4a - -30°F to -25°F 4a - -30°F to -25°F4a - -30°F to -25°F
Minot4a - -30°F to -25°F 4a - -30°F to -25°F4a - -30°F to -25°F
Valley City4a - -30°F to -25°F 4a - -30°F to -25°F3b - -35°F to -30°F
Wahpeton4a - -30°F to -25°F 4a - -30°F to -25°F4a - -30°F to -25°F
Watford City4a - -30°F to -25°F 4a - -30°F to -25°F3b - -35°F to -30°F
West Fargo4a - -30°F to -25°F 4a - -30°F to -25°F4a - -30°F to -25°F
Williston4a - -30°F to -25°F 4a - -30°F to -25°F3b - -35°F to -30°F

Hardiness Zone Maps for Neighboring States

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