>>1855250Alaska has tens of thousands sq km of polar desert and sub-arctic tundra desert that is drier than anywhere recorded in BC. Less than 4 inches (100mm) on the north slope and west AK, and less than 10 inches (250mm) in the interior. As with all northern deserts however, the evaporation rate is quite low, same with BC. The rough annual average precipitation range for Alaska is 4-200+ inches (100-5000mm) from Prudhoe Bay to Whittier and parts of SE AK, about the same as BC but 5 inches drier on the low end.
