North to south the Soviet Union goes from an arctic cap to a desert in central Asia. The longest river in the Soviet Union is the Lena. It stretches 2,745 miles in Siberia. This river along with others are frozen most of the year. The climate in the U.S.S.R. is mainly cold winters and dry hot summers.
Some parts are even too cold to grow or plant anything.
About half of the country snows 6 months of the year. A lot of the country has permafrost under the first layer of soil. Lakes and coastal waters are frozen much of the year. The one spot were rain falls most is in Caucasus. There are some places like foothills that get over a hundred inches a year, in Siberia the heaviest snow fall is up to four feet.