Geography and Climate
Teslin is part of the Yukon Southern Lakes ecoregion that extends from Lake Laberge south to the boundary with British Columbia. Broad valleys and large lakes characterize this ecoregion situated in the sporadic, discontinuous permafrost zone, where permafrost underlies less than one quarter of the landscape.
Some mountain groupings are the Big Salmon range.
This breathtaking landscape consists of dissected plateaus, rolling hills and broad valleys teeming with lakes and rivers and is home to the highest diversity of mammals in the Yukon, with at least 50 of the 60 species known to occur in the Yukon.
As with most Yukon communities, Teslin is subject to great variation in climate from year to year. The coldest month is January and the warmest temperatures are in July.
In general, the climate of Teslin is characterized by relatively cold temperatures with a relatively high incidence of sunshine.
Mean January temperatures vary from –30° Celsius in the lowest valleys to a more moderate –20° Celsius over higher terrains. Mean July temperatures range from 15° Celsius in the valleys to 10° Celsius over the heights.
Daylight hours in winter are as short as 6.5 hours, with a high incidence of sunshine and in summer as much as 20 hours per day.
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