Snow in town by Halloween – at least a dusting – is shorthand for when winter starts in the Chilkat Valley.

On Monday, not even the 3,600-foot-high summit of Mount Ripinsky was showing a dusting. With an average downtown temperature of 40 degrees for the week ending Oct. 28, a white Halloween looked unlikely.

“The temperature is five to 10 degrees above normal for you guys right now,” said Richard Lam, a forecaster for the…