North Dakota has a continental climate with warm summers and cold winters, ranging from USDA Plant Hardiness Zones 3a through 4b. Temperatures can vary per different areas of the state so get to know which zone your city is located in so that you can address and avoid potential issues before they become problematic.
The USDA zones map is a useful system for determining what plants will survive and grow in certain areas of North Dakota.
Understanding how these hardiness zones work means you can choose the right planting time, and optimize growing for your climate.
The temperature differences are significant because of its far inland position and being roughly equal distance from the North Pole and the Equator.