MLRA 54 - Rolling Soft Shale Plain Montana, North Dakota, and South Dakota 58,100 km2 (22,430 mj2)

Climate:
Average annual precipitation 325 to 450. Most of the precipitation falls during the grow ing season. Precipitation in winter is snow. Average annual temperature 4 to 7 C. Average freeze-free period--110 to 135 days.

12/16/98