Pools often close on or around Labor Day primarily due to staffing and usage reasons linked with the end of summer. Many public and community pools rely heavily on lifeguards and staff who are typically high school or college students, and these staff members usually leave for school around Labor Day, causing a shortage of personnel to safely operate the pools. Usage of the pools also sharply declines as schools reopen, reducing the demand for pool facilities. Additionally, pools are expensive to maintain and operate, so it is more budget-friendly to limit the pool season to the traditional summer period ending around Labor Day. While some pools in warmer climates or private hotels may remain open later if weather permits and staffing allows, the common season for public pools is from Memorial Day through Labor Day.