Puerto Williams topographic map
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Puerto Williams
The climate of Puerto Williams is a temperate subpolar oceanic climate (Cfc) bordering closely on a tundra climate (ET) according to the Köppen climate classification. The summers are short and cool while the winters are long, wet, but moderate. Rainfall is around 512.3 mm (20 in) a year and temperatures are steady throughout the year. Snowfall can occur in summer. The cold and wet summers help preserve glaciers. Although the area around the town is well-forested, exposed areas at some distance from or altitude above it have a sub-Antarctic climate typical of tundra, which makes the growth of trees impossible.