<Li> Summer Break - Early / mid of May to day after Labor day in early September (summer term classes might be offered). </Li> <Li> Major federal and state holidays (Private may observe religious holidays) (such as Memorial Day, Veterans Day, and Columbus Day). </Li> <P> Most colleges and universities divide the school year into two semesters . The fall semester often begins the day after Labor Day in early September and runs until mid-December . The spring semester typically starts in the middle or end of January and runs until May . Winter and summer classes might be offered in January and May--August . </P> <P> Weather - related cancellations, such as snow days and hurricane - related closures, can affect school calendars, as can local emergencies such as water main breaks, gas leaks, structural problems, or shootings . Some K - 12 districts build in a certain number of expected snow days, though in warmer climates typically none are scheduled . If the expected number is different from the actual number of canceled days, the beginning of summer vacation might be adjusted to keep the school year the same length . If there are too many canceled days, some districts will keep the beginning of summer vacation from moving too far by holding school during a scheduled spring vacation, or by holding school on Saturdays, professional development days, or other scheduled holidays . If the cancellation does reduce the number of days of instruction below the state minimum, the district may decide to simply drop the missed day from the academic year . </P>

What states have no school on presidents day