Alaska, the 49th state of the United States, is located in the extreme northwest of North America and covers an area of 1,723,337 square km, with nearly a third of the state lying within the Arctic Circle and 80% covered by permafrost, and half of the surface area being treeless Arctic plains.
Maine is the largest of the New England states and is among the coldest in May, with a population of 1.4 million, three climatic zones, and four-fifths of its land being forested.
Wyoming, the 44th state in the US, is the 10th largest state and ranks third in the coldest states in May with May temperatures ranging from a high of 65°F to a low of 40.8°F, and an average of 54°F.
North Dakota, with extreme temperatures and a continental climate, was the 39th state admitted to the U.S. and has a population of 779,261, with May temperatures ranging from 41.1°F to 65°F.
Vermont, one of the coldest states in May, is in New England and borders Quebec, New Hampshire, Massachusetts, and New York, with Montpelier as its capital.