MLRA 60A - Pierre Shale Plains and Badlands Nebraska, South Dakota, and Wyoming 23,600 km2 (9,110 mi2)

Climate:
Average annual precipitation 300 to 400 mm. Most of the precipitation falls during the growing season. Precipitation in winter is mainly snow that usually is accompanied by high winds that cause much drifting. Average snowfall is about 60 to 90 cm. Average annual temperature 7 to 9 C. Average freeze-free period-130 to 150 days.

12/16/98