Southeast Region

The southeast region of Alaska is primarily an archipelago. It tends to be a graveyard for North Pacific storms, and has the highest precipitation in Alaska. At low elevations winter precipitation may fall as rain or snow; and the lowlands are covered with temperate rain forest. Higher elevations nourish glaciers reaching tidewater. All of the climate stations are at or near tidewater.

Southeastern Alaska has the longest weather records in the state, with some data (not shown here) from Sitka reaching back into Russian times. Unfortunately the station history data are not adequate to allow evaluation of long-term trends from the area. The annual mean temperature series for each of the 10 stations is shown below, though individual station pages are recommended for more than a vague impression. The code is:
Haines: red open circles
Juneau (Airport): blue open diamonds
Juneau2 (city): green filled circles
Juneau Area:
Annex Creek: yellow squares
Sitka Japonski (airport): pink squares
Sitka Magnetic (city) light blue squares
Little Port Walter: burgundy triangles
Wrangell: dark green squares
Ketchikan: dark blue squares
Annette: brown squares

The adjusted average for the whole region is shown below, with red circles for individual years and a blue line for the binomially weighted 5-year running mean. The adjustment corrects for stations entering or leaving the net, but does not correct for station or observation time changes.

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Geophysical InstituteInt'l Arctic Research Center