In Alaska, the climate changes from sea to subarctic, which goes into the Arctic. This has formed the features of weather conditions, as a result of which five climatic zones can be distinguished. There is a significant territory of the coast and large water resources, mountains and areas of permafrost.
Sea climatic zone
The southern part of the peninsula is located in the sea climatic zone, which is affected by the climate of the Pacific Ocean. It is replaced by a marine continental climate that covers the central part of Alaska. In the summer, the weather is affected by air masses that circulate from the Beering Sea region. Continental air flows blow in winter.
There is a transition zone between the continental and marine type of climate. Specific weather conditions were also formed here, which at different times of the year affect the southern and northern air masses. Continental climate covers the internal areas of Alaska. The most northern part of the peninsula lies in the Arctic climatic zone. This is an area of the polar circle.
In general, in Alaska, a high level of humidity and precipitation falls from 3000 mm to 5000 mm per year, but their number is uneven. Most of all they fall in the area of mountain slopes, and least on the north coast.
If we talk about the temperature regime of Alaska, then on average it varies from +4 degrees to12 degrees pores Celsius. In the summer months, the temperature maximum is recorded here +21 degrees. In the Primorsky region in the summer there are +15 degrees, and in winter about6.
Subarctic climate of Alaska
In the subarctic climate is the tundra and foresttundra zone. Here the summer is very shortterm, since the snow begins to melt only in early June. Heat lasts about three to four weeks. Behind the polar circle there are polar days and nights. Closer to the north of the peninsula, the amount of precipitation decreases to 100 mm per year. In winter, the temperature drops to40 degrees in the subarctic belt. Winter lasts a very long time and at this time the climate becomes harsh. The largest amount of precipitation falls in the summer, when the temperature rises to a maximum of +16 degrees. At this time, the influence of moderate air flows is observed here.
In the Far North Alaska and nearby Islands Arctic climate. Here are rocky deserts with lichens of mosses, as well as firmware of glaciers. Winter lasts most of the year, and at this time the temperature drops to40 degrees. Precipitation practically does not fall out. There is also no summer here, because the temperature rarely rises above 0 degrees.