Sources: The New York Times (2005, 2009), MSNBC (2005). Once the Senate confirms the nomination by an affirmative vote, the Secretary of the Senate attests to a resolution of confirmation and transmits it to the White House.
Answer: Winter, June, July, and August. That timeworn classic is only partially true--May and September can also be great summer months. Alaska weather and daylight varies wildly by region and season, from short-sleeves in summer to down jackets in winter; from 7 rainy days in May in Southcentral to 17 rainy days in the Inside Passage.
You can't go wrong visiting Alaska anytime between May 10 and September 15. The days are long, nature is in full bloom, and the air is alive with energy. Most tours operate mid-May to mid-September, with the exception of those into Denali (mid-June to end of August). Peak season is mid-June to mid-August.