The start of summer vacation in Pennsylvania typically falls in early June. According to data from the Pennsylvania Department of Education, the majority of school districts in the state begin their summer break between the first and second week of June. This timing is consistent with the national trend of schools across the United States concluding the academic year in late May or early June. The reason for this early start is primarily due to the need for schools to prepare for the upcoming school year, including teacher training, facility maintenance, and other administrative tasks. Additionally, the warm weather during this period allows students to engage in outdoor activities and enjoy a well-deserved break after a rigorous academic year.