However the Climate of Washington varies a lot according to its latitudinal and insular position. The eastern regions of Washington experience Colder temperatures and a shorter growing season. Places which are situated in the eastern most part of the state of Washington has a normal daily mean of 40°F (4°C), ranging from 13°F (–11°C) in January to 64°F (18°C) in July.
These places experience such extreme weather because they are located located in the interior, away from the moderating influence of the ocean. The western half of of Washington is an area which experiences a a lot heavy thunderstorm activity. Late spring and early summer are the height of the tornado season and these tornadoes often cause a lot of damage to human life and property.
Any elaborate information about climate of Washington state would be incomplete without mention of the rainfall that occurs in the state. The area on the western side of Cascade ranges in Washington has an average annual rainfall of about 5080mm/200 inches which is heaviest in the state. On the other hand the eastern part of Washington state or the rain shadow area of Washington experiences only 6 inches of rainfall per annum.
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