Snake River topographic map

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Snake River

Due to the rain shadow effect of the Cascades, precipitation as a whole is scant, averaging 14 inches (360 mm) across the entire watershed. Most precipitation falls at higher elevations as snow, thus, most runoff in the Snake River watershed derives from snowmelt. Jackson Hole, Wyoming experiences an alpine climate with an average of 30 in (760 mm) of rain and 252 in (6,400 mm) of snow. The coldest month is January, with a mean temperature of 13 °F (−11 °C), and the hottest is July at 57.7 °F (14.3 °C). Twin Falls experiences a semi-arid climate, with about 9 in (230 mm) of rain and 13 in (330 mm) of snow. Monthly mean temperatures range from 29.4 °F (−1.4 °C) in January to 73.1 °F (22.8 °C) in July. The Columbia Basin around the river's mouth also has a semi-arid climate, with about 10 in (250 mm) of rain and 5 in (130 mm) of snow as measured at Ice Harbor Dam. January is the coldest month with a mean temperature of 34.3 °F (1.3 °C), and July is the hottest month at 74.6 °F (23.7 °C).

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About this map

Name: Snake River topographic map, elevation, terrain.

Location: Snake River, Washington County, Idaho, United States (44.24618 -117.02654 44.24923 -117.00892)

Average elevation: 644 m

Minimum elevation: 635 m

Maximum elevation: 653 m

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Weiser

United States > Idaho > Washington County

Weiser is located at 44°14′59″N 116°58′4″W / 44.24972°N 116.96778°W / 44.24972; -116.96778 (44.249712, -116.967799), at an elevation of 2,129 feet (649 m) above sea level.

Average elevation: 673 m