MLRA 53C - Southern Dark Brown Glaciated Plains South Dakota 13,870 km2 (5,350 mi2)

Climate:
Average annual precipitation 425 to 475 mm. More than half of the precipitation falls during the growing season. Precipitation in winter is snow. Average annual temperature 7 to 9 C. Average freeze-free period--130 to 150 days.

12/16/98