Best Answer: Hersheypark is closed in January, February and March. Springtime in the Park opens April 10, 11, 12, 2009. Weather permitting. Rides, particularly the roller coasters, may be subject to late openings and/or early closures in the event of unseasonably cold temperatures. Hersheypark is open for the summer season for weekends beginning in early May and daily from late May through Labor Day. Also open for a few September weekends after Labor Day. Historically Saturdays are the busiest days at Hersheypark.