Alaska Ecoregions 114.
Maritime climate prevails.
The region is south of the winter sea ice pack and is generally free from permafrost. Vegetation cover mainly consists of dwarf scrub communities at higher elevations and on sites exposed to wind, and graminoid herbaceous communities in more protected sites. Climate The Aleutian Islands have a maritime climate. Annual precipitation varies greatly from place to place, from as little as 530 mm to as much as 2,080 mm at sea level weather stations. Annual snowfall averages from 85 cm to 250 cm at the same stations.