As November progresses, much of the United States experiences a rapid decrease in daylight, signaling the impending arrival of winter. Regions in the northern part of the country, such as New England, the Upper Midwest, and the Pacific Northwest, will see approximately one hour less of sunlight this month. The Northern Rockies will experience an even greater reduction. Alaska faces the most significant change, with some Arctic communities entering a period of complete darkness before December. These shorter days and earlier sunsets mark the darkest period of fall for many Americans.