MLRA 44 - Northern Rocky Mountain Valleys Idaho, Montana, and Washington 32,320 km2 (12,480 mi2)

Climate:
Average annual precipitation 300 to 400 mm in most of the area, less than 250 mm in Montana, and 850 mm in northern Idaho. Precipitation is fairly evenly distributed throughout fall, winter, and spring but is low in summer. Most of the precipitation in winter is snow. Average annual temperature 4 to 8 C. Average freeze-free period--100 to 120 days in much of the area, but it is 80 days or less at the highest elevations and 130 days or more at the lowest.

12/16/98