Continental US refers to US states on the "continent" of North America which does include Alaska but does not include Hawaii.
based on US Board of Geographic Names government website.
Alaska.
Alaska, Hawaii
Washington state is the farthest northwest in the continental US. The capital of Washington state is Olympia.
Alaska in 1959
Alaska is because its part of North America on the continent not in the ocean even though it does not touch the US itself. Hawaii is a series of islands and is not continental because it does not touch North America.
Same as the continental US and plus Alaska's Day, the day Alaska became a state
Hawaii is much further away from the nearest point in the 48 continental US states than is Alaska.
Alaska & Hawaii are not part of continental US.
Alaska and Hawaii
1/5
North East
Alaska and Hawaii