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Juneau averages over 50 inches (1,270 mm) of precipitation a year, while some other areas in southeast Alaska receive as much as 275 inches (6,980 mm). Average monthly precipitation generally peaks in September or October, and is lowest in May and June.
[5] [6] The area is affected by a rain shadow effect caused by the Alaska Range to the south screening storms from the Gulf of Alaska. Average annual precipitation at Fairbanks is 287 mm/year; precipitation may reach 600 mm/year in the higher elevations. Permafrost is found at the higher elevations and more northerly extents of the ecoregion.
Alaska Range 6.1.3: ... with Low Tropical Deciduous Forest ... been an increase in average annual temperature as well as an increase in average annual rainfall.
They are generally found at altitudes ranging from 600 to 1,000 m (2,000 to 3,300 ft), and receive 2,000 to 6,000 mm (79 to 236 in) of average annual rainfall. [ 15 ] [ 16 ] [ 17 ] Despite being located in the temperate zone, the Azores rainforest is similar in many ways to the cloud forest environments of the tropics and subtropics.
Temperate deciduous or temperate broad-leaf forests are a variety of temperate forest 'dominated' by deciduous trees that lose their leaves each winter. [1] They represent one of Earth's major biomes , making up 9.69% of global land area. [ 2 ]
Average summer temperatures range from 37 °F (3 °C) to 60 °F (16 °C). The tundra is very much like a desert in terms of precipitation. Yearly average precipitation varies by region, but generally, there is only about 6–10 inches (150–250 mm) of precipitation per year, and in some regions, it can have up to 20 inches (510 mm).
Known by the U.S. Forest Service as the "crown jewel", the Tongass stretches across 17 million acres of land and is Alaska's largest National Forest. [35] Alaska Wilderness League describes the Tongass as "one of the last remaining intact temperate rainforests in the world". [36] 70,000 people inhabit the region. [35]
According to the study in Global Change Biology, the average yearly temperatures across the Alaskan and Canadian taiga ranged from −26.6 °C to 4.8 °C. This indicates the extremely cold weather the taiga has for the majority of the year. As for precipitation, the majority of it is snow, but rain is also an important factor.