MLRA 53B - Central Dark Brown Glaciated Plains North Dakota and South Dakota 44,980 km2 (17,370 mi2)

Climate:
Average annual precipitation 350 to 425 mm. More than half of the precipitation falls during the growing season. Winter precipitation is snow. Average annual temperatxre 1 to 7 C. Average freeze-free period--110 to 130 days.

12/16/98