The climate of the alpine biomes decreases by 50 degrees Fahrenheit, every 10,000 feet that the altitude increases, and winds become harsher, therefore the temperature range is very broad depending on the height of a mountain. The climate also depends on the surrounding area, for example if a countries climate at its lowest point is 70 degrees then the mountains base line temperature would be 70 degrees at the lowest altitude and only decreases as the altitude increases. The alpine biomes experience summer from June to September and winter from October to May in the winter temperatures usually drop below freezing, and in the summer temperatures can go up to 70 degrees Fahrenheit, yet the weather is very unpredictable and can change from 70 degrees to 30 in a day. This biome is known for storing water by keeping snow at the top of a mountain then when it melts in the summer the water runs down to the surrounding communities. This can happen because alpine biomes get lots of snow, yet are very dry otherwise, which means they do not get much rain, so the snow can remain on a mountain until spring or summer. The average annual rainfall for an alpine biome is around 12 inches. The soil in alpine biomes is very unhealthy because animals and plants are unable to decompose due to the freezing temperatures, the soil is very sandy and gravelly and usually freezes a short way below the topsoil. The soil where most plants grow is very dry and unable to hold water, so some plants, like succulents, have adapted to store water in their leaves. Most plants die within 45-90 days.